darkcomet | 77e6549f91e50d0fa9a46300823eee0c5d26e0e887586972812e2103b8add68c

Analysis

max time kernel
150s
max time network
120s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
02-05-2024 04:27

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General

Target

0d7fdb9b4f8fd7dad8bed13640839d24_JaffaCakes118.exe
Size

1.9MB
MD5

0d7fdb9b4f8fd7dad8bed13640839d24
SHA1

ec162c23c310dd27f69195ba9711f67f60dbc36a
SHA256

77e6549f91e50d0fa9a46300823eee0c5d26e0e887586972812e2103b8add68c
SHA512

4becd8ac3a536548fd777c3ed745890d0cfffa6328fbeaf1cdaed3a608acd8cc84bfa3838761748db85b847769041ebb1ade6798dafe38fc09765051dbb993a1
SSDEEP

49152:1Vjpl2+DwQ/bU/jCxmiya/EjErEFcZYxiHJKp:jjL2APxrya/EjEExiHk

Score

10^/10

darkcomet pc evasion persistence rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

svp1750.zapto.org:200

Mutex

DC_MUTEX-03PY43J

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
ni5ENfz5E8rK
install
true
offline_keylogger
true
persistence
true
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:

0d7fdb9b4f8fd7dad8bed13640839d24_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"	0d7fdb9b4f8fd7dad8bed13640839d24_JaffaCakes118.exe

Modifies firewall policy service 2 TTPs 3 IoCs

evasion

Modify Registry

T1112

Windows Service

T1543.003

Processes:

msdcsc.exe

description	ioc	Process
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
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	msdcsc.exe

Disables RegEdit via registry modification 1 IoCs

evasion

Processes:

msdcsc.exe

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	msdcsc.exe

Disables Task Manager via registry modification
evasion

Executes dropped EXE 2 IoCs

Processes:

msdcsc.exemsdcsc.exe

pid	Process
2612	msdcsc.exe
2144	msdcsc.exe

Loads dropped DLL 2 IoCs

Processes:

0d7fdb9b4f8fd7dad8bed13640839d24_JaffaCakes118.exe

pid	Process
2420	0d7fdb9b4f8fd7dad8bed13640839d24_JaffaCakes118.exe
2420	0d7fdb9b4f8fd7dad8bed13640839d24_JaffaCakes118.exe

UPX packed file 28 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
behavioral1/memory/2420-50-0x0000000000400000-0x00000000004B8000-memory.dmp	upx
behavioral1/memory/2144-47-0x0000000000400000-0x00000000004B8000-memory.dmp	upx
behavioral1/memory/2144-46-0x0000000000400000-0x00000000004B8000-memory.dmp	upx
behavioral1/memory/2144-45-0x0000000000400000-0x00000000004B8000-memory.dmp	upx
behavioral1/memory/2144-44-0x0000000000400000-0x00000000004B8000-memory.dmp	upx
behavioral1/memory/2420-16-0x0000000000400000-0x00000000004B8000-memory.dmp	upx
behavioral1/memory/2420-15-0x0000000000400000-0x00000000004B8000-memory.dmp	upx
behavioral1/memory/2420-13-0x0000000000400000-0x00000000004B8000-memory.dmp	upx
behavioral1/memory/2420-10-0x0000000000400000-0x00000000004B8000-memory.dmp	upx
behavioral1/memory/2420-9-0x0000000000400000-0x00000000004B8000-memory.dmp	upx
behavioral1/memory/2420-7-0x0000000000400000-0x00000000004B8000-memory.dmp	upx
behavioral1/memory/2420-8-0x0000000000400000-0x00000000004B8000-memory.dmp	upx
behavioral1/memory/2144-51-0x0000000000400000-0x00000000004B8000-memory.dmp	upx
behavioral1/memory/2144-52-0x0000000000400000-0x00000000004B8000-memory.dmp	upx
behavioral1/memory/2144-53-0x0000000000400000-0x00000000004B8000-memory.dmp	upx
behavioral1/memory/2144-54-0x0000000000400000-0x00000000004B8000-memory.dmp	upx
behavioral1/memory/2144-55-0x0000000000400000-0x00000000004B8000-memory.dmp	upx
behavioral1/memory/2144-56-0x0000000000400000-0x00000000004B8000-memory.dmp	upx
behavioral1/memory/2144-57-0x0000000000400000-0x00000000004B8000-memory.dmp	upx
behavioral1/memory/2144-58-0x0000000000400000-0x00000000004B8000-memory.dmp	upx
behavioral1/memory/2144-59-0x0000000000400000-0x00000000004B8000-memory.dmp	upx
behavioral1/memory/2144-60-0x0000000000400000-0x00000000004B8000-memory.dmp	upx
behavioral1/memory/2144-61-0x0000000000400000-0x00000000004B8000-memory.dmp	upx
behavioral1/memory/2144-62-0x0000000000400000-0x00000000004B8000-memory.dmp	upx
behavioral1/memory/2144-63-0x0000000000400000-0x00000000004B8000-memory.dmp	upx
behavioral1/memory/2144-64-0x0000000000400000-0x00000000004B8000-memory.dmp	upx
behavioral1/memory/2144-65-0x0000000000400000-0x00000000004B8000-memory.dmp	upx
behavioral1/memory/2144-66-0x0000000000400000-0x00000000004B8000-memory.dmp	upx

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

0d7fdb9b4f8fd7dad8bed13640839d24_JaffaCakes118.exemsdcsc.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	0d7fdb9b4f8fd7dad8bed13640839d24_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	msdcsc.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

0d7fdb9b4f8fd7dad8bed13640839d24_JaffaCakes118.exemsdcsc.exe

description	pid	Process	procid_target
PID 2416 set thread context of 2420	2416	0d7fdb9b4f8fd7dad8bed13640839d24_JaffaCakes118.exe	28
PID 2612 set thread context of 2144	2612	msdcsc.exe	30

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 46 IoCs

Processes:

0d7fdb9b4f8fd7dad8bed13640839d24_JaffaCakes118.exemsdcsc.exe

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2420	0d7fdb9b4f8fd7dad8bed13640839d24_JaffaCakes118.exe
Token: SeSecurityPrivilege	2420	0d7fdb9b4f8fd7dad8bed13640839d24_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	2420	0d7fdb9b4f8fd7dad8bed13640839d24_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	2420	0d7fdb9b4f8fd7dad8bed13640839d24_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	2420	0d7fdb9b4f8fd7dad8bed13640839d24_JaffaCakes118.exe
Token: SeSystemtimePrivilege	2420	0d7fdb9b4f8fd7dad8bed13640839d24_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	2420	0d7fdb9b4f8fd7dad8bed13640839d24_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	2420	0d7fdb9b4f8fd7dad8bed13640839d24_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	2420	0d7fdb9b4f8fd7dad8bed13640839d24_JaffaCakes118.exe
Token: SeBackupPrivilege	2420	0d7fdb9b4f8fd7dad8bed13640839d24_JaffaCakes118.exe
Token: SeRestorePrivilege	2420	0d7fdb9b4f8fd7dad8bed13640839d24_JaffaCakes118.exe
Token: SeShutdownPrivilege	2420	0d7fdb9b4f8fd7dad8bed13640839d24_JaffaCakes118.exe
Token: SeDebugPrivilege	2420	0d7fdb9b4f8fd7dad8bed13640839d24_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	2420	0d7fdb9b4f8fd7dad8bed13640839d24_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	2420	0d7fdb9b4f8fd7dad8bed13640839d24_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	2420	0d7fdb9b4f8fd7dad8bed13640839d24_JaffaCakes118.exe
Token: SeUndockPrivilege	2420	0d7fdb9b4f8fd7dad8bed13640839d24_JaffaCakes118.exe
Token: SeManageVolumePrivilege	2420	0d7fdb9b4f8fd7dad8bed13640839d24_JaffaCakes118.exe
Token: SeImpersonatePrivilege	2420	0d7fdb9b4f8fd7dad8bed13640839d24_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	2420	0d7fdb9b4f8fd7dad8bed13640839d24_JaffaCakes118.exe
Token: 33	2420	0d7fdb9b4f8fd7dad8bed13640839d24_JaffaCakes118.exe
Token: 34	2420	0d7fdb9b4f8fd7dad8bed13640839d24_JaffaCakes118.exe
Token: 35	2420	0d7fdb9b4f8fd7dad8bed13640839d24_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	2144	msdcsc.exe
Token: SeSecurityPrivilege	2144	msdcsc.exe
Token: SeTakeOwnershipPrivilege	2144	msdcsc.exe
Token: SeLoadDriverPrivilege	2144	msdcsc.exe
Token: SeSystemProfilePrivilege	2144	msdcsc.exe
Token: SeSystemtimePrivilege	2144	msdcsc.exe
Token: SeProfSingleProcessPrivilege	2144	msdcsc.exe
Token: SeIncBasePriorityPrivilege	2144	msdcsc.exe
Token: SeCreatePagefilePrivilege	2144	msdcsc.exe
Token: SeBackupPrivilege	2144	msdcsc.exe
Token: SeRestorePrivilege	2144	msdcsc.exe
Token: SeShutdownPrivilege	2144	msdcsc.exe
Token: SeDebugPrivilege	2144	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	2144	msdcsc.exe
Token: SeChangeNotifyPrivilege	2144	msdcsc.exe
Token: SeRemoteShutdownPrivilege	2144	msdcsc.exe
Token: SeUndockPrivilege	2144	msdcsc.exe
Token: SeManageVolumePrivilege	2144	msdcsc.exe
Token: SeImpersonatePrivilege	2144	msdcsc.exe
Token: SeCreateGlobalPrivilege	2144	msdcsc.exe
Token: 33	2144	msdcsc.exe
Token: 34	2144	msdcsc.exe
Token: 35	2144	msdcsc.exe

Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

0d7fdb9b4f8fd7dad8bed13640839d24_JaffaCakes118.exemsdcsc.exemsdcsc.exe

pid	Process
2416	0d7fdb9b4f8fd7dad8bed13640839d24_JaffaCakes118.exe
2612	msdcsc.exe
2144	msdcsc.exe

Suspicious use of WriteProcessMemory 24 IoCs

Processes:

0d7fdb9b4f8fd7dad8bed13640839d24_JaffaCakes118.exe0d7fdb9b4f8fd7dad8bed13640839d24_JaffaCakes118.exemsdcsc.exe

description	pid	Process	procid_target
PID 2416 wrote to memory of 2420	2416	0d7fdb9b4f8fd7dad8bed13640839d24_JaffaCakes118.exe	28
PID 2416 wrote to memory of 2420	2416	0d7fdb9b4f8fd7dad8bed13640839d24_JaffaCakes118.exe	28
PID 2416 wrote to memory of 2420	2416	0d7fdb9b4f8fd7dad8bed13640839d24_JaffaCakes118.exe	28
PID 2416 wrote to memory of 2420	2416	0d7fdb9b4f8fd7dad8bed13640839d24_JaffaCakes118.exe	28
PID 2416 wrote to memory of 2420	2416	0d7fdb9b4f8fd7dad8bed13640839d24_JaffaCakes118.exe	28
PID 2416 wrote to memory of 2420	2416	0d7fdb9b4f8fd7dad8bed13640839d24_JaffaCakes118.exe	28
PID 2416 wrote to memory of 2420	2416	0d7fdb9b4f8fd7dad8bed13640839d24_JaffaCakes118.exe	28
PID 2416 wrote to memory of 2420	2416	0d7fdb9b4f8fd7dad8bed13640839d24_JaffaCakes118.exe	28
PID 2416 wrote to memory of 2420	2416	0d7fdb9b4f8fd7dad8bed13640839d24_JaffaCakes118.exe	28
PID 2416 wrote to memory of 2420	2416	0d7fdb9b4f8fd7dad8bed13640839d24_JaffaCakes118.exe	28
PID 2420 wrote to memory of 2612	2420	0d7fdb9b4f8fd7dad8bed13640839d24_JaffaCakes118.exe	29
PID 2420 wrote to memory of 2612	2420	0d7fdb9b4f8fd7dad8bed13640839d24_JaffaCakes118.exe	29
PID 2420 wrote to memory of 2612	2420	0d7fdb9b4f8fd7dad8bed13640839d24_JaffaCakes118.exe	29
PID 2420 wrote to memory of 2612	2420	0d7fdb9b4f8fd7dad8bed13640839d24_JaffaCakes118.exe	29
PID 2612 wrote to memory of 2144	2612	msdcsc.exe	30
PID 2612 wrote to memory of 2144	2612	msdcsc.exe	30
PID 2612 wrote to memory of 2144	2612	msdcsc.exe	30
PID 2612 wrote to memory of 2144	2612	msdcsc.exe	30
PID 2612 wrote to memory of 2144	2612	msdcsc.exe	30
PID 2612 wrote to memory of 2144	2612	msdcsc.exe	30
PID 2612 wrote to memory of 2144	2612	msdcsc.exe	30
PID 2612 wrote to memory of 2144	2612	msdcsc.exe	30
PID 2612 wrote to memory of 2144	2612	msdcsc.exe	30
PID 2612 wrote to memory of 2144	2612	msdcsc.exe	30

C:\Users\Admin\AppData\Local\Temp\0d7fdb9b4f8fd7dad8bed13640839d24_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\0d7fdb9b4f8fd7dad8bed13640839d24_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2416
- C:\Users\Admin\AppData\Local\Temp\0d7fdb9b4f8fd7dad8bed13640839d24_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\0d7fdb9b4f8fd7dad8bed13640839d24_JaffaCakes118.exe"
  2⤵
  - Modifies WinLogon for persistence
  - Loads dropped DLL
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2420
- - C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
    "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2612
  - - C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
      "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
      4⤵
      Modifies firewall policy service
      Disables RegEdit via registry modification
      Executes dropped EXE
      Adds Run key to start application
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      PID:2144

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

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
1.9MB

MD5
0d7fdb9b4f8fd7dad8bed13640839d24

SHA1
ec162c23c310dd27f69195ba9711f67f60dbc36a

SHA256
77e6549f91e50d0fa9a46300823eee0c5d26e0e887586972812e2103b8add68c

SHA512
4becd8ac3a536548fd777c3ed745890d0cfffa6328fbeaf1cdaed3a608acd8cc84bfa3838761748db85b847769041ebb1ade6798dafe38fc09765051dbb993a1

Download Submit
memory/2144-62-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/2144-54-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/2144-45-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/2144-44-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/2144-66-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/2144-47-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/2144-65-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/2144-61-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/2144-51-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/2144-46-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/2144-64-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/2144-60-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/2144-59-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/2144-58-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/2144-57-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/2144-56-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/2144-55-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/2144-52-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/2144-53-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/2144-63-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/2416-3-0x000000000040A000-0x000000000040C000-memory.dmp

Filesize
8KB

Download
memory/2416-0-0x0000000000400000-0x00000000005CA000-memory.dmp

Filesize
1.8MB

Download
memory/2416-11-0x0000000000400000-0x00000000005CA000-memory.dmp

Filesize
1.8MB

Download
memory/2416-5-0x0000000000400000-0x00000000005CA000-memory.dmp

Filesize
1.8MB

Download
memory/2420-10-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/2420-7-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/2420-9-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/2420-8-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/2420-50-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/2420-13-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/2420-15-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/2420-16-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/2612-31-0x0000000000400000-0x00000000005CA000-memory.dmp

Filesize
1.8MB

Download
memory/2612-33-0x0000000000400000-0x00000000005CA000-memory.dmp

Filesize
1.8MB

Download
memory/2612-41-0x0000000000400000-0x00000000005CA000-memory.dmp

Filesize
1.8MB

Download