darkcomet | 17a2b57aac91aee6d92c8825635f5a42eefe1081b4d89837c3c72c0bed24fb8a

Analysis

max time kernel
150s
max time network
123s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
20-04-2024 21:21

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General

Target

fdacdb5e42a2764ecb7af4feedf8a7de_JaffaCakes118.exe
Size

254KB
MD5

fdacdb5e42a2764ecb7af4feedf8a7de
SHA1

1a4d5c98d6e8ffbdf3b0b71e80632ff5efb9f25c
SHA256

17a2b57aac91aee6d92c8825635f5a42eefe1081b4d89837c3c72c0bed24fb8a
SHA512

05edacea5a42297a735f9c1ed3dd320786d51d9974b96586369e2e750d1cfaa95f8b4659c2dbe7c72e76e5f6cf3afff735ec7e406615793a661d1c7cef59d687
SSDEEP

6144:lcNYS996KFifeVjBpeExgVTFSXFoMc5o3AY4T:lcW7KEZlPowdT

Score

10^/10

darkcomet guest16 evasion persistence rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

alwa7sh-hack.no-ip.org:81

Mutex

DC_MUTEX-Q51XZQG

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
Po9oHU4nPFTV
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:

fdacdb5e42a2764ecb7af4feedf8a7de_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"	fdacdb5e42a2764ecb7af4feedf8a7de_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

Disables RegEdit via registry modification 1 IoCs

evasion

Processes:

msdcsc.exe

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	msdcsc.exe

Disables Task Manager via registry modification
evasion

Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid	Process
2912	msdcsc.exe

Loads dropped DLL 2 IoCs

Processes:

fdacdb5e42a2764ecb7af4feedf8a7de_JaffaCakes118.exe

pid	Process
1876	fdacdb5e42a2764ecb7af4feedf8a7de_JaffaCakes118.exe
1876	fdacdb5e42a2764ecb7af4feedf8a7de_JaffaCakes118.exe

UPX packed file 19 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/1876-0-0x0000000000400000-0x00000000004B8000-memory.dmp	upx
behavioral1/files/0x000c00000001450b-12.dat	upx
behavioral1/memory/2912-15-0x0000000000400000-0x00000000004B8000-memory.dmp	upx
behavioral1/memory/1876-49-0x0000000000400000-0x00000000004B8000-memory.dmp	upx
behavioral1/memory/2912-50-0x0000000000400000-0x00000000004B8000-memory.dmp	upx
behavioral1/memory/2912-51-0x0000000000400000-0x00000000004B8000-memory.dmp	upx
behavioral1/memory/2912-52-0x0000000000400000-0x00000000004B8000-memory.dmp	upx
behavioral1/memory/2912-53-0x0000000000400000-0x00000000004B8000-memory.dmp	upx
behavioral1/memory/2912-54-0x0000000000400000-0x00000000004B8000-memory.dmp	upx
behavioral1/memory/2912-55-0x0000000000400000-0x00000000004B8000-memory.dmp	upx
behavioral1/memory/2912-56-0x0000000000400000-0x00000000004B8000-memory.dmp	upx
behavioral1/memory/2912-57-0x0000000000400000-0x00000000004B8000-memory.dmp	upx
behavioral1/memory/2912-58-0x0000000000400000-0x00000000004B8000-memory.dmp	upx
behavioral1/memory/2912-59-0x0000000000400000-0x00000000004B8000-memory.dmp	upx
behavioral1/memory/2912-60-0x0000000000400000-0x00000000004B8000-memory.dmp	upx
behavioral1/memory/2912-61-0x0000000000400000-0x00000000004B8000-memory.dmp	upx
behavioral1/memory/2912-62-0x0000000000400000-0x00000000004B8000-memory.dmp	upx
behavioral1/memory/2912-63-0x0000000000400000-0x00000000004B8000-memory.dmp	upx
behavioral1/memory/2912-64-0x0000000000400000-0x00000000004B8000-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:

fdacdb5e42a2764ecb7af4feedf8a7de_JaffaCakes118.exemsdcsc.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	fdacdb5e42a2764ecb7af4feedf8a7de_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	msdcsc.exe

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:

fdacdb5e42a2764ecb7af4feedf8a7de_JaffaCakes118.exemsdcsc.exe

description	pid	Process
Token: SeIncreaseQuotaPrivilege	1876	fdacdb5e42a2764ecb7af4feedf8a7de_JaffaCakes118.exe
Token: SeSecurityPrivilege	1876	fdacdb5e42a2764ecb7af4feedf8a7de_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	1876	fdacdb5e42a2764ecb7af4feedf8a7de_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	1876	fdacdb5e42a2764ecb7af4feedf8a7de_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	1876	fdacdb5e42a2764ecb7af4feedf8a7de_JaffaCakes118.exe
Token: SeSystemtimePrivilege	1876	fdacdb5e42a2764ecb7af4feedf8a7de_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	1876	fdacdb5e42a2764ecb7af4feedf8a7de_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	1876	fdacdb5e42a2764ecb7af4feedf8a7de_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	1876	fdacdb5e42a2764ecb7af4feedf8a7de_JaffaCakes118.exe
Token: SeBackupPrivilege	1876	fdacdb5e42a2764ecb7af4feedf8a7de_JaffaCakes118.exe
Token: SeRestorePrivilege	1876	fdacdb5e42a2764ecb7af4feedf8a7de_JaffaCakes118.exe
Token: SeShutdownPrivilege	1876	fdacdb5e42a2764ecb7af4feedf8a7de_JaffaCakes118.exe
Token: SeDebugPrivilege	1876	fdacdb5e42a2764ecb7af4feedf8a7de_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	1876	fdacdb5e42a2764ecb7af4feedf8a7de_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	1876	fdacdb5e42a2764ecb7af4feedf8a7de_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	1876	fdacdb5e42a2764ecb7af4feedf8a7de_JaffaCakes118.exe
Token: SeUndockPrivilege	1876	fdacdb5e42a2764ecb7af4feedf8a7de_JaffaCakes118.exe
Token: SeManageVolumePrivilege	1876	fdacdb5e42a2764ecb7af4feedf8a7de_JaffaCakes118.exe
Token: SeImpersonatePrivilege	1876	fdacdb5e42a2764ecb7af4feedf8a7de_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	1876	fdacdb5e42a2764ecb7af4feedf8a7de_JaffaCakes118.exe
Token: 33	1876	fdacdb5e42a2764ecb7af4feedf8a7de_JaffaCakes118.exe
Token: 34	1876	fdacdb5e42a2764ecb7af4feedf8a7de_JaffaCakes118.exe
Token: 35	1876	fdacdb5e42a2764ecb7af4feedf8a7de_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	2912	msdcsc.exe
Token: SeSecurityPrivilege	2912	msdcsc.exe
Token: SeTakeOwnershipPrivilege	2912	msdcsc.exe
Token: SeLoadDriverPrivilege	2912	msdcsc.exe
Token: SeSystemProfilePrivilege	2912	msdcsc.exe
Token: SeSystemtimePrivilege	2912	msdcsc.exe
Token: SeProfSingleProcessPrivilege	2912	msdcsc.exe
Token: SeIncBasePriorityPrivilege	2912	msdcsc.exe
Token: SeCreatePagefilePrivilege	2912	msdcsc.exe
Token: SeBackupPrivilege	2912	msdcsc.exe
Token: SeRestorePrivilege	2912	msdcsc.exe
Token: SeShutdownPrivilege	2912	msdcsc.exe
Token: SeDebugPrivilege	2912	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	2912	msdcsc.exe
Token: SeChangeNotifyPrivilege	2912	msdcsc.exe
Token: SeRemoteShutdownPrivilege	2912	msdcsc.exe
Token: SeUndockPrivilege	2912	msdcsc.exe
Token: SeManageVolumePrivilege	2912	msdcsc.exe
Token: SeImpersonatePrivilege	2912	msdcsc.exe
Token: SeCreateGlobalPrivilege	2912	msdcsc.exe
Token: 33	2912	msdcsc.exe
Token: 34	2912	msdcsc.exe
Token: 35	2912	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

msdcsc.exe

pid	Process
2912	msdcsc.exe

Suspicious use of WriteProcessMemory 27 IoCs

Processes:

fdacdb5e42a2764ecb7af4feedf8a7de_JaffaCakes118.exemsdcsc.exe

description	pid	Process	procid_target
PID 1876 wrote to memory of 2912	1876	fdacdb5e42a2764ecb7af4feedf8a7de_JaffaCakes118.exe	28
PID 1876 wrote to memory of 2912	1876	fdacdb5e42a2764ecb7af4feedf8a7de_JaffaCakes118.exe	28
PID 1876 wrote to memory of 2912	1876	fdacdb5e42a2764ecb7af4feedf8a7de_JaffaCakes118.exe	28
PID 1876 wrote to memory of 2912	1876	fdacdb5e42a2764ecb7af4feedf8a7de_JaffaCakes118.exe	28
PID 2912 wrote to memory of 2512	2912	msdcsc.exe	29
PID 2912 wrote to memory of 2512	2912	msdcsc.exe	29
PID 2912 wrote to memory of 2512	2912	msdcsc.exe	29
PID 2912 wrote to memory of 2512	2912	msdcsc.exe	29
PID 2912 wrote to memory of 2512	2912	msdcsc.exe	29
PID 2912 wrote to memory of 2512	2912	msdcsc.exe	29
PID 2912 wrote to memory of 2512	2912	msdcsc.exe	29
PID 2912 wrote to memory of 2512	2912	msdcsc.exe	29
PID 2912 wrote to memory of 2512	2912	msdcsc.exe	29
PID 2912 wrote to memory of 2512	2912	msdcsc.exe	29
PID 2912 wrote to memory of 2512	2912	msdcsc.exe	29
PID 2912 wrote to memory of 2512	2912	msdcsc.exe	29
PID 2912 wrote to memory of 2512	2912	msdcsc.exe	29
PID 2912 wrote to memory of 2512	2912	msdcsc.exe	29
PID 2912 wrote to memory of 2512	2912	msdcsc.exe	29
PID 2912 wrote to memory of 2512	2912	msdcsc.exe	29
PID 2912 wrote to memory of 2512	2912	msdcsc.exe	29
PID 2912 wrote to memory of 2512	2912	msdcsc.exe	29
PID 2912 wrote to memory of 2512	2912	msdcsc.exe	29
PID 2912 wrote to memory of 2512	2912	msdcsc.exe	29
PID 2912 wrote to memory of 2512	2912	msdcsc.exe	29
PID 2912 wrote to memory of 2512	2912	msdcsc.exe	29
PID 2912 wrote to memory of 2512	2912	msdcsc.exe	29

C:\Users\Admin\AppData\Local\Temp\fdacdb5e42a2764ecb7af4feedf8a7de_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\fdacdb5e42a2764ecb7af4feedf8a7de_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1876
- C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
  "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
  2⤵
  - 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
  - Suspicious use of WriteProcessMemory
  PID:2912
- - C:\Windows\SysWOW64\notepad.exe
    notepad
    3⤵
    PID:2512

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
254KB

MD5
fdacdb5e42a2764ecb7af4feedf8a7de

SHA1
1a4d5c98d6e8ffbdf3b0b71e80632ff5efb9f25c

SHA256
17a2b57aac91aee6d92c8825635f5a42eefe1081b4d89837c3c72c0bed24fb8a

SHA512
05edacea5a42297a735f9c1ed3dd320786d51d9974b96586369e2e750d1cfaa95f8b4659c2dbe7c72e76e5f6cf3afff735ec7e406615793a661d1c7cef59d687

Download Submit
memory/1876-1-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

Download
memory/1876-13-0x00000000036C0000-0x0000000003778000-memory.dmp

Filesize
736KB

Download
memory/1876-14-0x00000000036C0000-0x0000000003778000-memory.dmp

Filesize
736KB

Download
memory/1876-0-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/1876-49-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/2512-18-0x00000000000C0000-0x00000000000C1000-memory.dmp

Filesize
4KB

Download
memory/2512-48-0x0000000000350000-0x0000000000351000-memory.dmp

Filesize
4KB

Download
memory/2912-52-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/2912-57-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/2912-50-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/2912-51-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/2912-15-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/2912-53-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/2912-54-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/2912-55-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/2912-56-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/2912-17-0x00000000002A0000-0x00000000002A1000-memory.dmp

Filesize
4KB

Download
memory/2912-58-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/2912-59-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/2912-60-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/2912-61-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/2912-62-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/2912-63-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/2912-64-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download