Analysis
- max time kernel
150s - max time network
146s - platform
windows10-2004_x64 - resource
win10v2004-20240730-en - resource tags
- submitted
31/07/2024, 19:07
General
- Target 7d9512b4df2dd9a08b99bb5d4f644a1b_JaffaCakes118.exe
- Size 379KB
- Sample240731-xslscstbqf
- SHA256 6da662c998ef51d63aba6cccdf510e7e584b4d8505e2fa0dbe19a70632dba4c6
Malware Config
Extracted
-
darkcomet
-
Guest16
-
smr9.no-ip.org:1604
-
DC_MUTEX-NJSZLY8
-
InstallPath
MSDCSC\lsass.exe
-
gencode
6xtSkc229rlk
-
install
true
-
offline_keylogger
false
-
password
123456
-
persistence
true
-
reg_key
lsass.exe
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
- Adds Run key to start application 2 TTPs 2 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Modifies registry class 1 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious use of AdjustPrivilegeToken 48 IoCs
- Suspicious use of WriteProcessMemory 3 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\7d9512b4df2dd9a08b99bb5d4f644a1b_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\7d9512b4df2dd9a08b99bb5d4f644a1b_JaffaCakes118.exe"1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\MSDCSC\lsass.exe"C:\MSDCSC\lsass.exe"2⤵
- Executes dropped EXE
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Privilege Escalation
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Replay Monitor
Loading Replay Monitor...
Downloads
lsass.exe
memory/1564-0-0x0000000000400000-0x00000000004D1000-memory.dmp
memory/1564-1-0x0000000000400000-0x00000000004D1000-memory.dmp
memory/1564-4-0x0000000000400000-0x00000000004D1000-memory.dmp
memory/1564-5-0x00000000004CF000-0x00000000004D0000-memory.dmp
memory/1564-3-0x0000000000400000-0x00000000004D1000-memory.dmp
memory/1564-2-0x0000000000400000-0x00000000004D1000-memory.dmp
memory/1564-9-0x0000000000400000-0x00000000004D1000-memory.dmp
memory/1564-78-0x0000000000400000-0x00000000004D1000-memory.dmp
memory/2712-68-0x0000000000400000-0x00000000004D1000-memory.dmp
memory/2712-83-0x0000000000400000-0x00000000004D1000-memory.dmp
memory/2712-74-0x0000000000400000-0x00000000004D1000-memory.dmp
memory/2712-73-0x0000000000400000-0x00000000004D1000-memory.dmp
memory/2712-72-0x0000000000400000-0x00000000004D1000-memory.dmp
memory/2712-70-0x0000000000400000-0x00000000004D1000-memory.dmp
memory/2712-69-0x0000000000400000-0x00000000004D1000-memory.dmp
memory/2712-76-0x0000000000400000-0x00000000004D1000-memory.dmp
memory/2712-71-0x0000000000400000-0x00000000004D1000-memory.dmp
memory/2712-79-0x0000000000400000-0x00000000004D1000-memory.dmp
memory/2712-80-0x0000000000400000-0x00000000004D1000-memory.dmp
memory/2712-81-0x0000000000400000-0x00000000004D1000-memory.dmp
memory/2712-82-0x0000000000400000-0x00000000004D1000-memory.dmp
memory/2712-75-0x0000000000400000-0x00000000004D1000-memory.dmp
memory/2712-84-0x0000000000400000-0x00000000004D1000-memory.dmp
memory/2712-85-0x0000000000400000-0x00000000004D1000-memory.dmp
memory/2712-86-0x0000000000400000-0x00000000004D1000-memory.dmp
memory/2712-87-0x0000000000400000-0x00000000004D1000-memory.dmp
memory/2712-88-0x0000000000400000-0x00000000004D1000-memory.dmp
memory/2712-89-0x0000000000400000-0x00000000004D1000-memory.dmp
memory/2712-90-0x0000000000400000-0x00000000004D1000-memory.dmp
memory/2712-91-0x0000000000400000-0x00000000004D1000-memory.dmp
memory/2712-92-0x0000000000400000-0x00000000004D1000-memory.dmp
memory/2712-93-0x0000000000400000-0x00000000004D1000-memory.dmp
memory/2712-94-0x0000000000400000-0x00000000004D1000-memory.dmp