darkcomet | e35661892e57a9dcf8fd0d99eaa61422ca765a68a52ef60d12df488321800a2e

Analysis

max time kernel
150s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
02-11-2024 20:55

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General

Target

87b1557a6486ef0dad75b2d9f4b9ec86_JaffaCakes118.exe
Size

253KB
MD5

87b1557a6486ef0dad75b2d9f4b9ec86
SHA1

1daf68ee5f08ef0c0f55b4b6a799440dc175281b
SHA256

e35661892e57a9dcf8fd0d99eaa61422ca765a68a52ef60d12df488321800a2e
SHA512

3bb7412f12dbf3e463d31d503ed74a6d9d3ee6bd229a826849c88f1c9d2551300f1330952d413f2cb0dfc3aeb7e7e5f16a33a8e8b8f9bf0ebef099e2d5398e1c
SSDEEP

6144:XD7cY2fgssM7Wirg9KXylmRiL+QMeC/i6isqX7UovnONztByipwxZ:Xl8E4w5huat7UovONzbXw

Score

10^/10

darkcomet guest16 discovery evasion persistence rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

sameg.no-ip.biz:1604

Mutex

DC_MUTEX-F54S21D

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
QrEhKkKT5N4s
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
Darkcomet family
darkcomet

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

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"	87b1557a6486ef0dad75b2d9f4b9ec86_JaffaCakes118.exe

Windows security bypass 2 TTPs 1 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	msdcsc.exe

Executes dropped EXE 1 IoCs

pid	Process
2804	msdcsc.exe

Loads dropped DLL 2 IoCs

pid	Process
2424	87b1557a6486ef0dad75b2d9f4b9ec86_JaffaCakes118.exe
2424	87b1557a6486ef0dad75b2d9f4b9ec86_JaffaCakes118.exe

Windows security modification 2 TTPs 1 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	msdcsc.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	87b1557a6486ef0dad75b2d9f4b9ec86_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	msdcsc.exe

UPX packed file 13 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2424-0-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral1/files/0x000800000001660e-6.dat	upx
behavioral1/memory/2424-16-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral1/memory/2804-14-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral1/memory/2804-17-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral1/memory/2804-18-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral1/memory/2804-19-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral1/memory/2804-20-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral1/memory/2804-21-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral1/memory/2804-24-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral1/memory/2804-26-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral1/memory/2804-27-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral1/memory/2804-30-0x0000000000400000-0x00000000004BA000-memory.dmp	upx

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

System Information Discovery
T1082

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.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	87b1557a6486ef0dad75b2d9f4b9ec86_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 46 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2424	87b1557a6486ef0dad75b2d9f4b9ec86_JaffaCakes118.exe
Token: SeSecurityPrivilege	2424	87b1557a6486ef0dad75b2d9f4b9ec86_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	2424	87b1557a6486ef0dad75b2d9f4b9ec86_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	2424	87b1557a6486ef0dad75b2d9f4b9ec86_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	2424	87b1557a6486ef0dad75b2d9f4b9ec86_JaffaCakes118.exe
Token: SeSystemtimePrivilege	2424	87b1557a6486ef0dad75b2d9f4b9ec86_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	2424	87b1557a6486ef0dad75b2d9f4b9ec86_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	2424	87b1557a6486ef0dad75b2d9f4b9ec86_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	2424	87b1557a6486ef0dad75b2d9f4b9ec86_JaffaCakes118.exe
Token: SeBackupPrivilege	2424	87b1557a6486ef0dad75b2d9f4b9ec86_JaffaCakes118.exe
Token: SeRestorePrivilege	2424	87b1557a6486ef0dad75b2d9f4b9ec86_JaffaCakes118.exe
Token: SeShutdownPrivilege	2424	87b1557a6486ef0dad75b2d9f4b9ec86_JaffaCakes118.exe
Token: SeDebugPrivilege	2424	87b1557a6486ef0dad75b2d9f4b9ec86_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	2424	87b1557a6486ef0dad75b2d9f4b9ec86_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	2424	87b1557a6486ef0dad75b2d9f4b9ec86_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	2424	87b1557a6486ef0dad75b2d9f4b9ec86_JaffaCakes118.exe
Token: SeUndockPrivilege	2424	87b1557a6486ef0dad75b2d9f4b9ec86_JaffaCakes118.exe
Token: SeManageVolumePrivilege	2424	87b1557a6486ef0dad75b2d9f4b9ec86_JaffaCakes118.exe
Token: SeImpersonatePrivilege	2424	87b1557a6486ef0dad75b2d9f4b9ec86_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	2424	87b1557a6486ef0dad75b2d9f4b9ec86_JaffaCakes118.exe
Token: 33	2424	87b1557a6486ef0dad75b2d9f4b9ec86_JaffaCakes118.exe
Token: 34	2424	87b1557a6486ef0dad75b2d9f4b9ec86_JaffaCakes118.exe
Token: 35	2424	87b1557a6486ef0dad75b2d9f4b9ec86_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	2804	msdcsc.exe
Token: SeSecurityPrivilege	2804	msdcsc.exe
Token: SeTakeOwnershipPrivilege	2804	msdcsc.exe
Token: SeLoadDriverPrivilege	2804	msdcsc.exe
Token: SeSystemProfilePrivilege	2804	msdcsc.exe
Token: SeSystemtimePrivilege	2804	msdcsc.exe
Token: SeProfSingleProcessPrivilege	2804	msdcsc.exe
Token: SeIncBasePriorityPrivilege	2804	msdcsc.exe
Token: SeCreatePagefilePrivilege	2804	msdcsc.exe
Token: SeBackupPrivilege	2804	msdcsc.exe
Token: SeRestorePrivilege	2804	msdcsc.exe
Token: SeShutdownPrivilege	2804	msdcsc.exe
Token: SeDebugPrivilege	2804	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	2804	msdcsc.exe
Token: SeChangeNotifyPrivilege	2804	msdcsc.exe
Token: SeRemoteShutdownPrivilege	2804	msdcsc.exe
Token: SeUndockPrivilege	2804	msdcsc.exe
Token: SeManageVolumePrivilege	2804	msdcsc.exe
Token: SeImpersonatePrivilege	2804	msdcsc.exe
Token: SeCreateGlobalPrivilege	2804	msdcsc.exe
Token: 33	2804	msdcsc.exe
Token: 34	2804	msdcsc.exe
Token: 35	2804	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2804	msdcsc.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2424 wrote to memory of 2804	2424	87b1557a6486ef0dad75b2d9f4b9ec86_JaffaCakes118.exe	30
PID 2424 wrote to memory of 2804	2424	87b1557a6486ef0dad75b2d9f4b9ec86_JaffaCakes118.exe	30
PID 2424 wrote to memory of 2804	2424	87b1557a6486ef0dad75b2d9f4b9ec86_JaffaCakes118.exe	30
PID 2424 wrote to memory of 2804	2424	87b1557a6486ef0dad75b2d9f4b9ec86_JaffaCakes118.exe	30

C:\Users\Admin\AppData\Local\Temp\87b1557a6486ef0dad75b2d9f4b9ec86_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\87b1557a6486ef0dad75b2d9f4b9ec86_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2424
- C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
  "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
  2⤵
  - Windows security bypass
  - Executes dropped EXE
  - Windows security modification
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:2804

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

Impair Defenses

T1562

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
253KB

MD5
87b1557a6486ef0dad75b2d9f4b9ec86

SHA1
1daf68ee5f08ef0c0f55b4b6a799440dc175281b

SHA256
e35661892e57a9dcf8fd0d99eaa61422ca765a68a52ef60d12df488321800a2e

SHA512
3bb7412f12dbf3e463d31d503ed74a6d9d3ee6bd229a826849c88f1c9d2551300f1330952d413f2cb0dfc3aeb7e7e5f16a33a8e8b8f9bf0ebef099e2d5398e1c

Download Submit
memory/2424-0-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2424-1-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

Download
memory/2424-8-0x0000000004050000-0x000000000410A000-memory.dmp

Filesize
744KB

Download
memory/2424-16-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2804-17-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2804-14-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2804-18-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2804-19-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2804-20-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2804-21-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2804-24-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2804-26-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2804-27-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2804-30-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads