Analysis
- max time kernel
145s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
- submitted
18/05/2024, 09:27
General
- Target 540e881fdef93057580c1627e2e01ea1_JaffaCakes118.exe
- Size 401KB
- Sample240518-ler7fade3s
- SHA256 40e43df7d9cca36f5bbd7cd7f19195c6f99468591ff9bff528bd70120ff72f7e
Malware Config
Signatures
- ACProtect 1.3x - 1.4x DLL software 1 IoCs
Detects file using ACProtect software.
- Loads dropped DLL 1 IoCs
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- UPX packed file 3 IoCs
Detects executables packed with UPX/modified UPX open source packer.
- Adds Run key to start application 2 TTPs 1 IoCs
- 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 2 IoCs
- Program crash 1 IoCs
- Suspicious behavior: EnumeratesProcesses 8 IoCs
- Suspicious use of WriteProcessMemory 3 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\540e881fdef93057580c1627e2e01ea1_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\540e881fdef93057580c1627e2e01ea1_JaffaCakes118.exe"1⤵
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\rundll32.exeC:\Windows\SysWOW64\rundll32.exe msiixt32.dll,splvrn2⤵
- Loads dropped DLL
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-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1192 -s 6762⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1192 -ip 11921⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
msiixt32.dll
memory/1192-0-0x0000000000700000-0x000000000075A000-memory.dmp
memory/1192-1-0x0000000002830000-0x00000000028B7000-memory.dmp
memory/1192-2-0x0000000002830000-0x00000000028B7000-memory.dmp
memory/1192-4-0x0000000002830000-0x00000000028B7000-memory.dmp
memory/1192-5-0x0000000002830000-0x00000000028B7000-memory.dmp
memory/1192-9-0x0000000000700000-0x000000000075A000-memory.dmp
memory/1192-10-0x0000000002830000-0x00000000028B7000-memory.dmp
memory/1940-8-0x0000000010000000-0x0000000010087000-memory.dmp
memory/1940-13-0x0000000010000000-0x0000000010087000-memory.dmp