Analysis
- max time kernel
149s - max time network
138s - platform
windows10-2004_x64 - resource
win10v2004-20240709-en - resource tags
- submitted
23/07/2024, 01:04
General
- Target 65892469fe4238129a806c3c05511d6f_JaffaCakes118.exe
- Size 251KB
- Sample240723-be148sygpj
- SHA256 a99b5985cad28b83cec7b13ebb812f74829cb2a1b9b97e37c2162a0722474cd8
Malware Config
Extracted
-
darkcomet
-
fff
-
127.0.0.1:1604
-
DCMIN_MUTEX-TPGN20T
-
InstallPath
DCSCMIN\IMDCSC.exe
-
gencode
HJ2HZr91NJ0E
-
install
true
-
offline_keylogger
true
-
persistence
false
-
reg_key
DarkComet RAT
Signatures
- Darkcomet
DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.
- Modifies WinLogon for persistence 2 TTPs 1 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 1 IoCs
- UPX packed file 14 IoCs
Detects executables packed with UPX/modified UPX open source packer.
- Adds Run key to start application 2 TTPs 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious use of AdjustPrivilegeToken 48 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 3 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\65892469fe4238129a806c3c05511d6f_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\65892469fe4238129a806c3c05511d6f_JaffaCakes118.exe"1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\Documents\DCSCMIN\IMDCSC.exe"C:\Users\Admin\Documents\DCSCMIN\IMDCSC.exe"2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
IMDCSC.exe
memory/1068-0-0x0000000000400000-0x00000000004B5000-memory.dmp
memory/1068-1-0x0000000000C60000-0x0000000000C61000-memory.dmp
memory/1068-14-0x0000000000400000-0x00000000004B5000-memory.dmp
memory/1844-19-0x0000000000880000-0x0000000000881000-memory.dmp
memory/1844-16-0x0000000000400000-0x00000000004B5000-memory.dmp
memory/1844-17-0x0000000000400000-0x00000000004B5000-memory.dmp
memory/1844-18-0x0000000000400000-0x00000000004B5000-memory.dmp
memory/1844-15-0x0000000000880000-0x0000000000881000-memory.dmp
memory/1844-20-0x0000000000400000-0x00000000004B5000-memory.dmp
memory/1844-22-0x0000000000400000-0x00000000004B5000-memory.dmp
memory/1844-23-0x0000000000400000-0x00000000004B5000-memory.dmp
memory/1844-24-0x0000000000400000-0x00000000004B5000-memory.dmp
memory/1844-26-0x0000000000400000-0x00000000004B5000-memory.dmp
memory/1844-28-0x0000000000400000-0x00000000004B5000-memory.dmp
memory/1844-30-0x0000000000400000-0x00000000004B5000-memory.dmp
memory/1844-31-0x0000000000400000-0x00000000004B5000-memory.dmp