Analysis
- max time kernel
142s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20230703-en - resource tags
- submitted
27/07/2023, 07:12
General
- Target c6f4f0c4a37d871e0169497501b3b2d4.exe
- Size 349KB
- Sample230727-h1hcksbc2t
- SHA256 d0e7a341fe199dbabb5f0798dba0564e9b60e4736a405c46eafc7232cc10dc40
Malware Config
Signatures
- Downloads MZ/PE file
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Loads dropped DLL 2 IoCs
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Drops file in System32 directory 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
- Delays execution with timeout.exe 1 IoCs
- Suspicious behavior: EnumeratesProcesses 22 IoCs
- Suspicious use of WriteProcessMemory 6 IoCs
Processes
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k netsvcs -p1⤵
- Drops file in System32 directory
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C:\Users\Admin\AppData\Local\Temp\c6f4f0c4a37d871e0169497501b3b2d4.exe"C:\Users\Admin\AppData\Local\Temp\c6f4f0c4a37d871e0169497501b3b2d4.exe"1⤵
- Checks computer location settings
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c timeout /t 5 & del /f /q "C:\Users\Admin\AppData\Local\Temp\c6f4f0c4a37d871e0169497501b3b2d4.exe" & del "C:\ProgramData\*.dll"" & exit2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\timeout.exetimeout /t 53⤵
- Delays execution with timeout.exe
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
Are.docx
mozglue.dll
mozglue.dll
nss3.dll
memory/1416-138-0x0000000061E00000-0x0000000061EF3000-memory.dmp
memory/1416-186-0x00000000027E0000-0x00000000028E0000-memory.dmp
memory/1416-185-0x0000000000400000-0x0000000002428000-memory.dmp
memory/1416-135-0x00000000027E0000-0x00000000028E0000-memory.dmp
memory/1416-137-0x0000000000400000-0x0000000002428000-memory.dmp
memory/1416-206-0x0000000004180000-0x000000000419B000-memory.dmp
memory/1416-212-0x0000000000400000-0x0000000002428000-memory.dmp
memory/1416-136-0x0000000004180000-0x000000000419B000-memory.dmp
memory/1416-221-0x0000000000400000-0x0000000002428000-memory.dmp