darkcomet | d29bcf69e32558045ba219c136c85d1bbc552300caec42cc6c630f6ac8c86b12

Analysis

max time kernel
150s
max time network
126s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
19-04-2024 16:38

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General

Target

fab9010dde4439f3b8d2e91d718b8b37_JaffaCakes118.exe
Size

1.5MB
MD5

fab9010dde4439f3b8d2e91d718b8b37
SHA1

25f3bfcbab66e99339c52117ccf386fc6831b8be
SHA256

d29bcf69e32558045ba219c136c85d1bbc552300caec42cc6c630f6ac8c86b12
SHA512

af5ab132fbe619338d5c4cf4c54f5304023200ffe5493e7e74137d4d64296838c3e2e2e1c10521b11aada37581e1e644d45ad0a548b49eaeb978df66e32df373
SSDEEP

24576:KwnU4TDLPH5BwT91EVOeW+4A6l2mJdEgMffHtNSfpzMaVI9x51oL:lntTXP56R1E05+4ZdrEgMt0MaV6GL

Score

10^/10

darkcomet guest16 evasion persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

tester312.ddns.net:8888

Mutex

DC_MUTEX-R0PC8F3

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
vskxKN46wJGx
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:

Encryptado.exe

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

Sets file to hidden 1 TTPs 2 IoCs

Modifies file attributes to stop it showing in Explorer etc.

evasion

Hidden Files and Directories

T1564.001

Processes:

attrib.exeattrib.exe

pid	Process
936	attrib.exe
876	attrib.exe

Executes dropped EXE 2 IoCs

Processes:

Encryptado.exemsdcsc.exe

pid	Process
1944	Encryptado.exe
684	msdcsc.exe

Loads dropped DLL 4 IoCs

Processes:

fab9010dde4439f3b8d2e91d718b8b37_JaffaCakes118.exeEncryptado.exe

pid	Process
1640	fab9010dde4439f3b8d2e91d718b8b37_JaffaCakes118.exe
1640	fab9010dde4439f3b8d2e91d718b8b37_JaffaCakes118.exe
1944	Encryptado.exe
1944	Encryptado.exe

Adds Run key to start application 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

msdcsc.exeiexplore.exeEncryptado.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\AppData\\Roaming\\MSDCSC\\msdcsc.exe"	msdcsc.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\AppData\\Roaming\\MSDCSC\\msdcsc.exe"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\AppData\\Roaming\\MSDCSC\\msdcsc.exe"	Encryptado.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

msdcsc.exe

description	pid	Process	procid_target
PID 684 set thread context of 2756	684	msdcsc.exe	37

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:

iexplore.exe

pid	Process
2756	iexplore.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

fab9010dde4439f3b8d2e91d718b8b37_JaffaCakes118.exeEncryptado.exemsdcsc.exeiexplore.exe

description	pid	Process
Token: SeDebugPrivilege	1640	fab9010dde4439f3b8d2e91d718b8b37_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	1944	Encryptado.exe
Token: SeSecurityPrivilege	1944	Encryptado.exe
Token: SeTakeOwnershipPrivilege	1944	Encryptado.exe
Token: SeLoadDriverPrivilege	1944	Encryptado.exe
Token: SeSystemProfilePrivilege	1944	Encryptado.exe
Token: SeSystemtimePrivilege	1944	Encryptado.exe
Token: SeProfSingleProcessPrivilege	1944	Encryptado.exe
Token: SeIncBasePriorityPrivilege	1944	Encryptado.exe
Token: SeCreatePagefilePrivilege	1944	Encryptado.exe
Token: SeBackupPrivilege	1944	Encryptado.exe
Token: SeRestorePrivilege	1944	Encryptado.exe
Token: SeShutdownPrivilege	1944	Encryptado.exe
Token: SeDebugPrivilege	1944	Encryptado.exe
Token: SeSystemEnvironmentPrivilege	1944	Encryptado.exe
Token: SeChangeNotifyPrivilege	1944	Encryptado.exe
Token: SeRemoteShutdownPrivilege	1944	Encryptado.exe
Token: SeUndockPrivilege	1944	Encryptado.exe
Token: SeManageVolumePrivilege	1944	Encryptado.exe
Token: SeImpersonatePrivilege	1944	Encryptado.exe
Token: SeCreateGlobalPrivilege	1944	Encryptado.exe
Token: 33	1944	Encryptado.exe
Token: 34	1944	Encryptado.exe
Token: 35	1944	Encryptado.exe
Token: SeIncreaseQuotaPrivilege	684	msdcsc.exe
Token: SeSecurityPrivilege	684	msdcsc.exe
Token: SeTakeOwnershipPrivilege	684	msdcsc.exe
Token: SeLoadDriverPrivilege	684	msdcsc.exe
Token: SeSystemProfilePrivilege	684	msdcsc.exe
Token: SeSystemtimePrivilege	684	msdcsc.exe
Token: SeProfSingleProcessPrivilege	684	msdcsc.exe
Token: SeIncBasePriorityPrivilege	684	msdcsc.exe
Token: SeCreatePagefilePrivilege	684	msdcsc.exe
Token: SeBackupPrivilege	684	msdcsc.exe
Token: SeRestorePrivilege	684	msdcsc.exe
Token: SeShutdownPrivilege	684	msdcsc.exe
Token: SeDebugPrivilege	684	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	684	msdcsc.exe
Token: SeChangeNotifyPrivilege	684	msdcsc.exe
Token: SeRemoteShutdownPrivilege	684	msdcsc.exe
Token: SeUndockPrivilege	684	msdcsc.exe
Token: SeManageVolumePrivilege	684	msdcsc.exe
Token: SeImpersonatePrivilege	684	msdcsc.exe
Token: SeCreateGlobalPrivilege	684	msdcsc.exe
Token: 33	684	msdcsc.exe
Token: 34	684	msdcsc.exe
Token: 35	684	msdcsc.exe
Token: SeIncreaseQuotaPrivilege	2756	iexplore.exe
Token: SeSecurityPrivilege	2756	iexplore.exe
Token: SeTakeOwnershipPrivilege	2756	iexplore.exe
Token: SeLoadDriverPrivilege	2756	iexplore.exe
Token: SeSystemProfilePrivilege	2756	iexplore.exe
Token: SeSystemtimePrivilege	2756	iexplore.exe
Token: SeProfSingleProcessPrivilege	2756	iexplore.exe
Token: SeIncBasePriorityPrivilege	2756	iexplore.exe
Token: SeCreatePagefilePrivilege	2756	iexplore.exe
Token: SeBackupPrivilege	2756	iexplore.exe
Token: SeRestorePrivilege	2756	iexplore.exe
Token: SeShutdownPrivilege	2756	iexplore.exe
Token: SeDebugPrivilege	2756	iexplore.exe
Token: SeSystemEnvironmentPrivilege	2756	iexplore.exe
Token: SeChangeNotifyPrivilege	2756	iexplore.exe
Token: SeRemoteShutdownPrivilege	2756	iexplore.exe
Token: SeUndockPrivilege	2756	iexplore.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

iexplore.exe

pid	Process
2756	iexplore.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

fab9010dde4439f3b8d2e91d718b8b37_JaffaCakes118.exeEncryptado.execmd.execmd.exemsdcsc.exeiexplore.exe

description	pid	Process	procid_target
PID 1640 wrote to memory of 1944	1640	fab9010dde4439f3b8d2e91d718b8b37_JaffaCakes118.exe	28
PID 1640 wrote to memory of 1944	1640	fab9010dde4439f3b8d2e91d718b8b37_JaffaCakes118.exe	28
PID 1640 wrote to memory of 1944	1640	fab9010dde4439f3b8d2e91d718b8b37_JaffaCakes118.exe	28
PID 1640 wrote to memory of 1944	1640	fab9010dde4439f3b8d2e91d718b8b37_JaffaCakes118.exe	28
PID 1944 wrote to memory of 2344	1944	Encryptado.exe	29
PID 1944 wrote to memory of 2344	1944	Encryptado.exe	29
PID 1944 wrote to memory of 2344	1944	Encryptado.exe	29
PID 1944 wrote to memory of 2344	1944	Encryptado.exe	29
PID 1944 wrote to memory of 1700	1944	Encryptado.exe	30
PID 1944 wrote to memory of 1700	1944	Encryptado.exe	30
PID 1944 wrote to memory of 1700	1944	Encryptado.exe	30
PID 1944 wrote to memory of 1700	1944	Encryptado.exe	30
PID 1944 wrote to memory of 1644	1944	Encryptado.exe	33
PID 1944 wrote to memory of 1644	1944	Encryptado.exe	33
PID 1944 wrote to memory of 1644	1944	Encryptado.exe	33
PID 1944 wrote to memory of 1644	1944	Encryptado.exe	33
PID 1944 wrote to memory of 1644	1944	Encryptado.exe	33
PID 1944 wrote to memory of 1644	1944	Encryptado.exe	33
PID 1944 wrote to memory of 1644	1944	Encryptado.exe	33
PID 1944 wrote to memory of 1644	1944	Encryptado.exe	33
PID 1944 wrote to memory of 1644	1944	Encryptado.exe	33
PID 1944 wrote to memory of 1644	1944	Encryptado.exe	33
PID 1944 wrote to memory of 1644	1944	Encryptado.exe	33
PID 1944 wrote to memory of 1644	1944	Encryptado.exe	33
PID 1944 wrote to memory of 1644	1944	Encryptado.exe	33
PID 1944 wrote to memory of 1644	1944	Encryptado.exe	33
PID 1944 wrote to memory of 1644	1944	Encryptado.exe	33
PID 1944 wrote to memory of 1644	1944	Encryptado.exe	33
PID 1944 wrote to memory of 1644	1944	Encryptado.exe	33
PID 1944 wrote to memory of 1644	1944	Encryptado.exe	33
PID 1700 wrote to memory of 936	1700	cmd.exe	34
PID 1700 wrote to memory of 936	1700	cmd.exe	34
PID 1700 wrote to memory of 936	1700	cmd.exe	34
PID 1700 wrote to memory of 936	1700	cmd.exe	34
PID 2344 wrote to memory of 876	2344	cmd.exe	35
PID 2344 wrote to memory of 876	2344	cmd.exe	35
PID 2344 wrote to memory of 876	2344	cmd.exe	35
PID 2344 wrote to memory of 876	2344	cmd.exe	35
PID 1944 wrote to memory of 684	1944	Encryptado.exe	36
PID 1944 wrote to memory of 684	1944	Encryptado.exe	36
PID 1944 wrote to memory of 684	1944	Encryptado.exe	36
PID 1944 wrote to memory of 684	1944	Encryptado.exe	36
PID 684 wrote to memory of 2756	684	msdcsc.exe	37
PID 684 wrote to memory of 2756	684	msdcsc.exe	37
PID 684 wrote to memory of 2756	684	msdcsc.exe	37
PID 684 wrote to memory of 2756	684	msdcsc.exe	37
PID 684 wrote to memory of 2756	684	msdcsc.exe	37
PID 684 wrote to memory of 2756	684	msdcsc.exe	37
PID 2756 wrote to memory of 2084	2756	iexplore.exe	38
PID 2756 wrote to memory of 2084	2756	iexplore.exe	38
PID 2756 wrote to memory of 2084	2756	iexplore.exe	38
PID 2756 wrote to memory of 2084	2756	iexplore.exe	38
PID 2756 wrote to memory of 2084	2756	iexplore.exe	38
PID 2756 wrote to memory of 2084	2756	iexplore.exe	38
PID 2756 wrote to memory of 2084	2756	iexplore.exe	38
PID 2756 wrote to memory of 2084	2756	iexplore.exe	38
PID 2756 wrote to memory of 2084	2756	iexplore.exe	38
PID 2756 wrote to memory of 2084	2756	iexplore.exe	38
PID 2756 wrote to memory of 2084	2756	iexplore.exe	38
PID 2756 wrote to memory of 2084	2756	iexplore.exe	38
PID 2756 wrote to memory of 2084	2756	iexplore.exe	38
PID 2756 wrote to memory of 2084	2756	iexplore.exe	38
PID 2756 wrote to memory of 2084	2756	iexplore.exe	38
PID 2756 wrote to memory of 2084	2756	iexplore.exe	38

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1564.001

Processes:

attrib.exeattrib.exe

pid	Process
876	attrib.exe
936	attrib.exe

C:\Users\Admin\AppData\Local\Temp\fab9010dde4439f3b8d2e91d718b8b37_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\fab9010dde4439f3b8d2e91d718b8b37_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1640
- C:\Users\Admin\AppData\Local\Temp\Encryptado.exe
  "C:\Users\Admin\AppData\Local\Temp\Encryptado.exe"
  2⤵
  - Modifies WinLogon for persistence
  - Executes dropped EXE
  - Loads dropped DLL
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1944
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\Encryptado.exe" +s +h
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2344
  - - C:\Windows\SysWOW64\attrib.exe
      attrib "C:\Users\Admin\AppData\Local\Temp\Encryptado.exe" +s +h
      4⤵
      Sets file to hidden
      Views/modifies file attributes
      PID:876
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1700
  - - C:\Windows\SysWOW64\attrib.exe
      attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
      4⤵
      Sets file to hidden
      Views/modifies file attributes
      PID:936
- - C:\Windows\SysWOW64\notepad.exe
    notepad
    3⤵
    PID:1644
- - C:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe
    "C:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe"
    3⤵
    - Executes dropped EXE
    - Adds Run key to start application
    - Suspicious use of SetThreadContext
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:684
  - - C:\Program Files (x86)\Internet Explorer\iexplore.exe
      "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
      4⤵
      Adds Run key to start application
      Suspicious behavior: GetForegroundWindowSpam
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      PID:2756
    - - C:\Windows\SysWOW64\notepad.exe
        
        notepad
        5⤵
        
        PID:2084

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

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Defense Evasion

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

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

\Users\Admin\AppData\Local\Temp\Encryptado.exe

Filesize
760KB

MD5
79f7a2e40afe33057b91f9587922f715

SHA1
1ea9f0b555a38494973fddd22c0bafc9245cb9ad

SHA256
f81835bcc1344a249a9659eb153ff6b46f41122225713fbf5c9a771d6367031c

SHA512
317abbc559e301a80ff13d27abb4d3534e5b7ed616ad39edf43bafe6b37d23824c4a1a4db422ed06b7078108d1adf5eabec213433cd4778580b59420d3d143fe

Download Submit
memory/684-182-0x00000000003C0000-0x00000000003C1000-memory.dmp

Filesize
4KB

Download
memory/1640-31-0x0000000002060000-0x00000000020DF000-memory.dmp

Filesize
508KB

Download
memory/1640-47-0x0000000002060000-0x00000000020DF000-memory.dmp

Filesize
508KB

Download
memory/1640-4-0x0000000002270000-0x00000000022B0000-memory.dmp

Filesize
256KB

Download
memory/1640-43-0x0000000002060000-0x00000000020DF000-memory.dmp

Filesize
508KB

Download
memory/1640-11-0x0000000002060000-0x00000000020DF000-memory.dmp

Filesize
508KB

Download
memory/1640-17-0x0000000002060000-0x00000000020DF000-memory.dmp

Filesize
508KB

Download
memory/1640-15-0x0000000002060000-0x00000000020DF000-memory.dmp

Filesize
508KB

Download
memory/1640-19-0x0000000002060000-0x00000000020DF000-memory.dmp

Filesize
508KB

Download
memory/1640-13-0x0000000002060000-0x00000000020DF000-memory.dmp

Filesize
508KB

Download
memory/1640-9-0x0000000002060000-0x00000000020DF000-memory.dmp

Filesize
508KB

Download
memory/1640-7-0x0000000002060000-0x00000000020DF000-memory.dmp

Filesize
508KB

Download
memory/1640-6-0x0000000002060000-0x00000000020DF000-memory.dmp

Filesize
508KB

Download
memory/1640-21-0x0000000002060000-0x00000000020DF000-memory.dmp

Filesize
508KB

Download
memory/1640-23-0x0000000002060000-0x00000000020DF000-memory.dmp

Filesize
508KB

Download
memory/1640-25-0x0000000002060000-0x00000000020DF000-memory.dmp

Filesize
508KB

Download
memory/1640-27-0x0000000002060000-0x00000000020DF000-memory.dmp

Filesize
508KB

Download
memory/1640-29-0x0000000002060000-0x00000000020DF000-memory.dmp

Filesize
508KB

Download
memory/1640-51-0x0000000002060000-0x00000000020DF000-memory.dmp

Filesize
508KB

Download
memory/1640-37-0x0000000002060000-0x00000000020DF000-memory.dmp

Filesize
508KB

Download
memory/1640-35-0x0000000002060000-0x00000000020DF000-memory.dmp

Filesize
508KB

Download
memory/1640-0-0x0000000074020000-0x00000000745CB000-memory.dmp

Filesize
5.7MB

Download
memory/1640-39-0x0000000002060000-0x00000000020DF000-memory.dmp

Filesize
508KB

Download
memory/1640-5-0x0000000002270000-0x00000000022B0000-memory.dmp

Filesize
256KB

Download
memory/1640-53-0x0000000002060000-0x00000000020DF000-memory.dmp

Filesize
508KB

Download
memory/1640-33-0x0000000002060000-0x00000000020DF000-memory.dmp

Filesize
508KB

Download
memory/1640-55-0x0000000002060000-0x00000000020DF000-memory.dmp

Filesize
508KB

Download
memory/1640-59-0x0000000002060000-0x00000000020DF000-memory.dmp

Filesize
508KB

Download
memory/1640-61-0x0000000002060000-0x00000000020DF000-memory.dmp

Filesize
508KB

Download
memory/1640-57-0x0000000002060000-0x00000000020DF000-memory.dmp

Filesize
508KB

Download
memory/1640-63-0x0000000002060000-0x00000000020DF000-memory.dmp

Filesize
508KB

Download
memory/1640-65-0x0000000002060000-0x00000000020DF000-memory.dmp

Filesize
508KB

Download
memory/1640-67-0x0000000002060000-0x00000000020DF000-memory.dmp

Filesize
508KB

Download
memory/1640-49-0x0000000002060000-0x00000000020DF000-memory.dmp

Filesize
508KB

Download
memory/1640-69-0x0000000002060000-0x00000000020DF000-memory.dmp

Filesize
508KB

Download
memory/1640-3-0x0000000002270000-0x00000000022B0000-memory.dmp

Filesize
256KB

Download
memory/1640-45-0x0000000002060000-0x00000000020DF000-memory.dmp

Filesize
508KB

Download
memory/1640-41-0x0000000002060000-0x00000000020DF000-memory.dmp

Filesize
508KB

Download
memory/1640-140-0x0000000002230000-0x0000000002231000-memory.dmp

Filesize
4KB

Download
memory/1640-141-0x0000000002270000-0x00000000022B0000-memory.dmp

Filesize
256KB

Download
memory/1640-2-0x0000000002270000-0x00000000022B0000-memory.dmp

Filesize
256KB

Download
memory/1640-152-0x0000000074020000-0x00000000745CB000-memory.dmp

Filesize
5.7MB

Download
memory/1640-1-0x0000000074020000-0x00000000745CB000-memory.dmp

Filesize
5.7MB

Download
memory/1644-174-0x0000000000190000-0x0000000000191000-memory.dmp

Filesize
4KB

Download
memory/1944-151-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/2084-220-0x0000000000D30000-0x0000000000D31000-memory.dmp

Filesize
4KB

Download