Analysis
- max time kernel
204s - max time network
210s - platform
windows10-2004_x64 - resource
win10v2004-20221111-en - resource tags
- submitted
09/02/2023, 07:02
General
- Target file.exe
- Size 196KB
- Sample230209-htsjzagf91
- SHA256 3ea36976172bbafbf4c64935cf228deb1955e539325738ad2ae50860e149d021
Malware Config
Extracted
-
gozi
Extracted
-
gozi
-
1001
-
https://checklist.skype.com
-
http://176.10.125.84
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http://91.242.219.235
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http://79.132.130.73
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http://176.10.119.209
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http://194.76.225.88
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http://79.132.134.158
-
base_path
/microsoft/
-
build
260255
-
exe_type
loader
-
extension
.acx
-
server_id
50
Signatures
- Detects Smokeloader packer 1 IoCs
- Gozi
Gozi is a well-known and widely distributed banking trojan.
- SmokeLoader
Modular backdoor trojan in use since 2014.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 2 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Program crash 1 IoCs
- Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 64 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 9 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
-
C:\Users\Admin\AppData\Local\Temp\EF32.exeC:\Users\Admin\AppData\Local\Temp\EF32.exe1⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /create /tn "svcupdater" /tr "C:\Users\Admin\AppData\Roaming\Win32Sync\svcupdater.exe" /st 00:00 /du 9999:59 /sc once /ri 1 /f2⤵
- Creates scheduled task(s)
-
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3048 -s 11402⤵
- Program crash
-
-
C:\Users\Admin\AppData\Local\Temp\EFFE.exeC:\Users\Admin\AppData\Local\Temp\EFFE.exe1⤵
- Executes dropped EXE
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 3048 -ip 30481⤵
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
EF32.exe
EF32.exe
EFFE.exe
EFFE.exe
memory/2808-133-0x0000000000800000-0x0000000000809000-memory.dmp
memory/2808-134-0x0000000000400000-0x0000000000562000-memory.dmp
memory/2808-135-0x0000000000400000-0x0000000000562000-memory.dmp
memory/2808-132-0x00000000008FD000-0x0000000000910000-memory.dmp
memory/3048-149-0x0000000000400000-0x000000000047A000-memory.dmp
memory/3048-147-0x00000000004E9000-0x0000000000513000-memory.dmp
memory/3048-148-0x0000000002080000-0x00000000020C7000-memory.dmp
memory/3048-151-0x00000000004E9000-0x0000000000513000-memory.dmp
memory/3048-152-0x0000000000400000-0x000000000047A000-memory.dmp
memory/5096-143-0x0000000001200000-0x000000000120E000-memory.dmp
memory/5096-142-0x0000000001460000-0x0000000001471000-memory.dmp
memory/5096-144-0x0000000001660000-0x000000000166D000-memory.dmp
memory/5096-150-0x0000000001200000-0x000000000120E000-memory.dmp