darkcomet | fba5cb745a133db3a20043a8a255515a43e851cd22218688b76b7f5fad4a6108

Analysis

max time kernel
150s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240419-en
resource tags

arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
submitted
26-04-2024 14:53

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General

Target

0104907eed9e54c2419933d635c8882b_JaffaCakes118.exe
Size

709KB
MD5

0104907eed9e54c2419933d635c8882b
SHA1

1e492614b76775c37f5bf453dabf10f459231f16
SHA256

fba5cb745a133db3a20043a8a255515a43e851cd22218688b76b7f5fad4a6108
SHA512

fb4d3b6a020c4c6aaa5f3854c91aa84918fb3b327bdbbce11f67c972bfa8d4940f2b6b27b9134c6ddba051e7f5346b975e7754323aca967af73258958d924936
SSDEEP

12288:Y9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hwe5V9w5P:MZ1xuVVjfFoynPaVBUR8f+kN10EBSOVa

Score

10^/10

darkcomet new evasion persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

New

guadagnareonline.hopto.org:1604

Mutex

DC_MUTEX-STBVEMZ

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
Usi3icsCEkiS
install
true
offline_keylogger
true
persistence
false
reg_key
MicroUpdate

Signatures

Darkcomet
DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.
trojan rat darkcomet

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

Processes:

0104907eed9e54c2419933d635c8882b_JaffaCakes118.exe

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	0104907eed9e54c2419933d635c8882b_JaffaCakes118.exe

Modifies firewall policy service 2 TTPs 3 IoCs

evasion

Modify Registry

T1112

Windows Service

T1543.003

Processes:

msdcsc.exe

description	ioc	Process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	msdcsc.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0"	msdcsc.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "0"	msdcsc.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

0104907eed9e54c2419933d635c8882b_JaffaCakes118.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2818691465-3043947619-2475182763-1000\Control Panel\International\Geo\Nation	0104907eed9e54c2419933d635c8882b_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid	Process
3636	msdcsc.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

0104907eed9e54c2419933d635c8882b_JaffaCakes118.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2818691465-3043947619-2475182763-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	0104907eed9e54c2419933d635c8882b_JaffaCakes118.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

msdcsc.exe

pid	Process
3636	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

Processes:

0104907eed9e54c2419933d635c8882b_JaffaCakes118.exemsdcsc.exe

description	pid	Process
Token: SeIncreaseQuotaPrivilege	1648	0104907eed9e54c2419933d635c8882b_JaffaCakes118.exe
Token: SeSecurityPrivilege	1648	0104907eed9e54c2419933d635c8882b_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	1648	0104907eed9e54c2419933d635c8882b_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	1648	0104907eed9e54c2419933d635c8882b_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	1648	0104907eed9e54c2419933d635c8882b_JaffaCakes118.exe
Token: SeSystemtimePrivilege	1648	0104907eed9e54c2419933d635c8882b_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	1648	0104907eed9e54c2419933d635c8882b_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	1648	0104907eed9e54c2419933d635c8882b_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	1648	0104907eed9e54c2419933d635c8882b_JaffaCakes118.exe
Token: SeBackupPrivilege	1648	0104907eed9e54c2419933d635c8882b_JaffaCakes118.exe
Token: SeRestorePrivilege	1648	0104907eed9e54c2419933d635c8882b_JaffaCakes118.exe
Token: SeShutdownPrivilege	1648	0104907eed9e54c2419933d635c8882b_JaffaCakes118.exe
Token: SeDebugPrivilege	1648	0104907eed9e54c2419933d635c8882b_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	1648	0104907eed9e54c2419933d635c8882b_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	1648	0104907eed9e54c2419933d635c8882b_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	1648	0104907eed9e54c2419933d635c8882b_JaffaCakes118.exe
Token: SeUndockPrivilege	1648	0104907eed9e54c2419933d635c8882b_JaffaCakes118.exe
Token: SeManageVolumePrivilege	1648	0104907eed9e54c2419933d635c8882b_JaffaCakes118.exe
Token: SeImpersonatePrivilege	1648	0104907eed9e54c2419933d635c8882b_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	1648	0104907eed9e54c2419933d635c8882b_JaffaCakes118.exe
Token: 33	1648	0104907eed9e54c2419933d635c8882b_JaffaCakes118.exe
Token: 34	1648	0104907eed9e54c2419933d635c8882b_JaffaCakes118.exe
Token: 35	1648	0104907eed9e54c2419933d635c8882b_JaffaCakes118.exe
Token: 36	1648	0104907eed9e54c2419933d635c8882b_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	3636	msdcsc.exe
Token: SeSecurityPrivilege	3636	msdcsc.exe
Token: SeTakeOwnershipPrivilege	3636	msdcsc.exe
Token: SeLoadDriverPrivilege	3636	msdcsc.exe
Token: SeSystemProfilePrivilege	3636	msdcsc.exe
Token: SeSystemtimePrivilege	3636	msdcsc.exe
Token: SeProfSingleProcessPrivilege	3636	msdcsc.exe
Token: SeIncBasePriorityPrivilege	3636	msdcsc.exe
Token: SeCreatePagefilePrivilege	3636	msdcsc.exe
Token: SeBackupPrivilege	3636	msdcsc.exe
Token: SeRestorePrivilege	3636	msdcsc.exe
Token: SeShutdownPrivilege	3636	msdcsc.exe
Token: SeDebugPrivilege	3636	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	3636	msdcsc.exe
Token: SeChangeNotifyPrivilege	3636	msdcsc.exe
Token: SeRemoteShutdownPrivilege	3636	msdcsc.exe
Token: SeUndockPrivilege	3636	msdcsc.exe
Token: SeManageVolumePrivilege	3636	msdcsc.exe
Token: SeImpersonatePrivilege	3636	msdcsc.exe
Token: SeCreateGlobalPrivilege	3636	msdcsc.exe
Token: 33	3636	msdcsc.exe
Token: 34	3636	msdcsc.exe
Token: 35	3636	msdcsc.exe
Token: 36	3636	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

msdcsc.exe

pid	Process
3636	msdcsc.exe

Suspicious use of WriteProcessMemory 25 IoCs

Processes:

0104907eed9e54c2419933d635c8882b_JaffaCakes118.exemsdcsc.exe

description	pid	Process	procid_target
PID 1648 wrote to memory of 3636	1648	0104907eed9e54c2419933d635c8882b_JaffaCakes118.exe	88
PID 1648 wrote to memory of 3636	1648	0104907eed9e54c2419933d635c8882b_JaffaCakes118.exe	88
PID 1648 wrote to memory of 3636	1648	0104907eed9e54c2419933d635c8882b_JaffaCakes118.exe	88
PID 3636 wrote to memory of 3656	3636	msdcsc.exe	89
PID 3636 wrote to memory of 3656	3636	msdcsc.exe	89
PID 3636 wrote to memory of 3656	3636	msdcsc.exe	89
PID 3636 wrote to memory of 3656	3636	msdcsc.exe	89
PID 3636 wrote to memory of 3656	3636	msdcsc.exe	89
PID 3636 wrote to memory of 3656	3636	msdcsc.exe	89
PID 3636 wrote to memory of 3656	3636	msdcsc.exe	89
PID 3636 wrote to memory of 3656	3636	msdcsc.exe	89
PID 3636 wrote to memory of 3656	3636	msdcsc.exe	89
PID 3636 wrote to memory of 3656	3636	msdcsc.exe	89
PID 3636 wrote to memory of 3656	3636	msdcsc.exe	89
PID 3636 wrote to memory of 3656	3636	msdcsc.exe	89
PID 3636 wrote to memory of 3656	3636	msdcsc.exe	89
PID 3636 wrote to memory of 3656	3636	msdcsc.exe	89
PID 3636 wrote to memory of 3656	3636	msdcsc.exe	89
PID 3636 wrote to memory of 3656	3636	msdcsc.exe	89
PID 3636 wrote to memory of 3656	3636	msdcsc.exe	89
PID 3636 wrote to memory of 3656	3636	msdcsc.exe	89
PID 3636 wrote to memory of 3656	3636	msdcsc.exe	89
PID 3636 wrote to memory of 3656	3636	msdcsc.exe	89
PID 3636 wrote to memory of 3656	3636	msdcsc.exe	89
PID 3636 wrote to memory of 3656	3636	msdcsc.exe	89

C:\Users\Admin\AppData\Local\Temp\0104907eed9e54c2419933d635c8882b_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\0104907eed9e54c2419933d635c8882b_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
PID:1648
- C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
  "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
  2⤵
  - Modifies firewall policy service
  - Executes dropped EXE
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3636
- - C:\Windows\SysWOW64\notepad.exe
    notepad
    3⤵
    PID:3656

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\Documents\MSDCSC\msdcsc.exe

Filesize
709KB

MD5
0104907eed9e54c2419933d635c8882b

SHA1
1e492614b76775c37f5bf453dabf10f459231f16

SHA256
fba5cb745a133db3a20043a8a255515a43e851cd22218688b76b7f5fad4a6108

SHA512
fb4d3b6a020c4c6aaa5f3854c91aa84918fb3b327bdbbce11f67c972bfa8d4940f2b6b27b9134c6ddba051e7f5346b975e7754323aca967af73258958d924936

Download Submit
memory/1648-16-0x0000000000400000-0x00000000004BE000-memory.dmp

Filesize
760KB

Download
memory/1648-0-0x0000000002280000-0x0000000002281000-memory.dmp

Filesize
4KB

Download
memory/3636-20-0x0000000000400000-0x00000000004BE000-memory.dmp

Filesize
760KB

Download
memory/3636-22-0x0000000000400000-0x00000000004BE000-memory.dmp

Filesize
760KB

Download
memory/3636-17-0x0000000000400000-0x00000000004BE000-memory.dmp

Filesize
760KB

Download
memory/3636-18-0x0000000000400000-0x00000000004BE000-memory.dmp

Filesize
760KB

Download
memory/3636-19-0x0000000000400000-0x00000000004BE000-memory.dmp

Filesize
760KB

Download
memory/3636-14-0x0000000002180000-0x0000000002181000-memory.dmp

Filesize
4KB

Download
memory/3636-21-0x0000000000400000-0x00000000004BE000-memory.dmp

Filesize
760KB

Download
memory/3636-30-0x0000000000400000-0x00000000004BE000-memory.dmp

Filesize
760KB

Download
memory/3636-23-0x0000000000400000-0x00000000004BE000-memory.dmp

Filesize
760KB

Download
memory/3636-24-0x0000000000400000-0x00000000004BE000-memory.dmp

Filesize
760KB

Download
memory/3636-25-0x0000000000400000-0x00000000004BE000-memory.dmp

Filesize
760KB

Download
memory/3636-26-0x0000000000400000-0x00000000004BE000-memory.dmp

Filesize
760KB

Download
memory/3636-27-0x0000000000400000-0x00000000004BE000-memory.dmp

Filesize
760KB

Download
memory/3636-28-0x0000000000400000-0x00000000004BE000-memory.dmp

Filesize
760KB

Download
memory/3636-29-0x0000000000400000-0x00000000004BE000-memory.dmp

Filesize
760KB

Download
memory/3656-15-0x0000000000680000-0x0000000000681000-memory.dmp

Filesize
4KB

Download