Analysis
- max time kernel
149s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20240412-en - resource tags
- submitted
19/04/2024, 23:23
General
- Target fb660cd8294a2f697bc610d746833d91_JaffaCakes118.exe
- Size 760KB
- Sample240419-3c7b1sbb2s
- SHA256 28877275c2c938f24cd0bf43f2c0cef090c58b7a85a988b2f6dff4970660b07d
Malware Config
Extracted
-
cryptbot
-
ewaisg12.top
-
morvay01.top
-
payload_url
http://winezo01.top/download.php?file=lv.exe
Signatures
- CryptBot
A C++ stealer distributed widely in bundle with other software.
- CryptBot payload 4 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- 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.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Program crash 1 IoCs
- 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 use of FindShellTrayWindow 2 IoCs
- Suspicious use of WriteProcessMemory 6 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\fb660cd8294a2f697bc610d746833d91_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\fb660cd8294a2f697bc610d746833d91_JaffaCakes118.exe"1⤵
- Checks computer location settings
- Checks processor information in registry
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c rd /s /q C:\Users\Admin\AppData\Local\Temp\vIHNdGSqGWE & timeout 3 & del /f /q "C:\Users\Admin\AppData\Local\Temp\fb660cd8294a2f697bc610d746833d91_JaffaCakes118.exe"2⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\timeout.exetimeout 33⤵
- Delays execution with timeout.exe
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1284 -s 14002⤵
- Program crash
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1284 -ip 12841⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
DZMJMW~1.ZIP
YFUAXY~1.ZIP
_INFOR~1.TXT
_Information.txt
_Information.txt
_Screen_Desktop.jpeg
system_info.txt
memory/1284-223-0x0000000000400000-0x00000000004E5000-memory.dmp
memory/1284-224-0x00000000005D0000-0x00000000006D0000-memory.dmp
memory/1284-1-0x00000000005D0000-0x00000000006D0000-memory.dmp
memory/1284-3-0x0000000000400000-0x00000000004E5000-memory.dmp
memory/1284-2-0x0000000002140000-0x0000000002221000-memory.dmp
memory/1284-233-0x0000000002140000-0x0000000002221000-memory.dmp