Analysis
- max time kernel
120s - max time network
116s - platform
windows10-2004_x64 - resource
win10v2004-20241007-en - resource tags
- submitted
09/01/2025, 05:13
General
- Target df74421cd2e9f2c5c440a6ef6361829287093b79515fc70717dd126a3de5da4aN.exe
- Size 658KB
- Sample250109-fwepsaslbl
- SHA256 df74421cd2e9f2c5c440a6ef6361829287093b79515fc70717dd126a3de5da4a
Malware Config
Extracted
-
darkcomet
-
Asylum
-
asylumisbaws.zapto.org:1604
-
DCMIN_MUTEX-LZBRHSY
-
InstallPath
DCSCMIN\IMDCSC.exe
-
gencode
1upUuGNeNha7
-
install
true
-
offline_keylogger
true
-
persistence
false
-
reg_key
DarkComet RAT
Extracted
-
latentbot
-
asylumisbaws.zapto.org
Signatures
- Darkcomet
DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.
- Darkcomet family
- LatentBot
Modular trojan written in Delphi which has been in-the-wild since 2013.
- Latentbot family
- 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 1 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.
- 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\df74421cd2e9f2c5c440a6ef6361829287093b79515fc70717dd126a3de5da4aN.exe"C:\Users\Admin\AppData\Local\Temp\df74421cd2e9f2c5c440a6ef6361829287093b79515fc70717dd126a3de5da4aN.exe"1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\Desktop\DCSCMIN\IMDCSC.exe"C:\Users\Admin\Desktop\DCSCMIN\IMDCSC.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
-
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
IMDCSC.exe
memory/2276-19-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/2276-18-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/2276-24-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/2276-14-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/2276-15-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/2276-16-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/2276-17-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/2276-12-0x00000000024F0000-0x00000000024F1000-memory.dmp
memory/2276-23-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/2276-20-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/2276-21-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/2276-22-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/2368-0-0x00000000006D0000-0x00000000006D1000-memory.dmp
memory/2368-13-0x0000000000400000-0x00000000004B2000-memory.dmp