@JoenOwek@malwrhunterteam@smica83@skocherhan Thanks for clarifying. I analyzed llst.ps1 and identified it as malicious.
e344f19dd0bd71e8c016d6848563122f96fc5dba426e176b3ba0a7a39aa1a321
π¨ #ClickFix
Investigating 31.76.87[.]37 revealed a multi-stage malware delivery chain
- Port 80 hosts a fake Cloudflare verification page instructing users to execute a PowerShell command.
- Port 8443 hosts the second-stage PowerShell loader.'
- The loader downloads LogBri12.msi from a Cloudflare R2 bucket and falls back to 31.76.87[.]37 if the primary download fails.
- The downloaded MSI contains multiple embedded files, including a renamed executable whose original filename is SmartAIP.exe.
IOCs
SHA-256:
Filename: LogBri12.msi
447adde94a1f14ba36c831b1009bd35992e66404aa3a4114b4bca921edab3969
Filename: SmartAIP.exe
ceb70e58e63eac81b8193e7b0dabd42168feb7929a0005c883967b99e1759732
Infrastructure:
31.76.87[.]37
31.76.87[.]37:8443
pub-32e2f642271c45008a1601bacbdfd3f1[.]r2[.]dev
#ThreatIntel #ClickFix #Malware #PowerShell
@malwrhunterteam@500mk500@skocherhan@OpcodeIntel@JAMESWT_WT@smica83@_ChezDaniela
π¨ Analyzed a suspicious GoogleMeets-agent-x86.msi sample delivered via PowerShell.
The observed PowerShell connects to:
hxxps://drvupdates[.]com/
and downloads: hxxp://drvupdates[.]com/meetsdrv.zip,
which contains GoogleMeets-agent-x86.msi.
The MSI is not a Google installer. Internally it identifies as "Great" (Manufacturer: Diene Douche) and drops a legitimate signed K7 executable (Station-Logic.exe / K7AVQrnt.exe) together with a modified K7UI.dll, broker.lib, and signalspec.lib.
Dynamic Flow:
- Observed PowerShell connects to hxxps://drvupdates[.]com/
- Downloads hxxp://drvupdates[.]com/meetsdrv.zip
- Drops files into C:\ProgramData\com_int_tool\
- Executes the signed Station-Logic.exe (K7AVQrnt.exe)
- Loads the modified K7UI.dll
- Creates Chime.exe
- Drops C:\ProgramData\SpectraEmu.exe
- SpectraEmu.exe appears to be a likely second-stage payload. It attempts a TCP connection to 31.57.38[.]141:3333 during execution.
It's also possible that the observed PowerShell is itself a later stage, generated or retrieved by an earlier infection stage. Further analysis is required to determine the complete initial infection chain.
IOCs:
Network:
hxxps://drvupdates[.]com/
hxxp://drvupdates[.]com/meetsdrv.zip
31.57.38[.]141:3333
SHA-256:
GoogleMeets-agent-x86.msi
0614cca495539cfe5c281a638060f1d9c990b6be0eda7c3bdbb363bd4f18206c
Station-Logic.exe
e7e5e7086870d785c55cde559c34d61552fe7ba2cffea32a436b66c21b1f79d2
K7UI.dll (Modified)
cb5f23db25beb1488652c6284e233c3bed51b14c645fcf4dbc5451294cb36251
K7TSHelp.dll
c8f7d8d9eef2476399e70a0859daecb0f2dde82a2dd06b89feedcd006e0cc4cd
broker.lib
f44dc45f71ac594117fd2729fc3b9f52e9bbd56ffbac17fb628701899a0a4668
signalspec.lib
de13761793b3e153e778c11f55aa2ed5090e5d0a972cdcfa2253b1425d67518d
Chime.exe
adb8347dfa1b1df1ca2211fe4d7e82f27ced939f1bf3d52548e52bc9e23fc52c
SpectraEmu.exe
f8e409319baa062bbba8bb4114889d7e3dfc5774780aefc57a46f19ff407c18b
File Dropped Paths:
C:\ProgramData\com_int_tool\
C:\ProgramData\SpectraEmu.exe
#Malware #ThreatIntel #ThreatHunting @malwrhunterteam@500mk500@skocherhan@JAMESWT_WT@OpcodeIntel@James_inthe_box