darkcomet | 17a2b57aac91aee6d92c8825635f5a42eefe1081b4d89837c3c72c0bed24fb8a

Analysis

max time kernel
150s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-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-1-5-21-259785868-298165991-4178590326-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	msdcsc.exe

Disables Task Manager via registry modification
evasion

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:

fdacdb5e42a2764ecb7af4feedf8a7de_JaffaCakes118.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-259785868-298165991-4178590326-1000\Control Panel\International\Geo\Nation	fdacdb5e42a2764ecb7af4feedf8a7de_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid	Process
3852	msdcsc.exe

UPX packed file 19 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/1612-0-0x0000000000400000-0x00000000004B8000-memory.dmp	upx
behavioral2/files/0x000a0000000233ef-6.dat	upx
behavioral2/memory/3852-15-0x0000000000400000-0x00000000004B8000-memory.dmp	upx
behavioral2/memory/1612-18-0x0000000000400000-0x00000000004B8000-memory.dmp	upx
behavioral2/memory/3852-19-0x0000000000400000-0x00000000004B8000-memory.dmp	upx
behavioral2/memory/3852-20-0x0000000000400000-0x00000000004B8000-memory.dmp	upx
behavioral2/memory/3852-21-0x0000000000400000-0x00000000004B8000-memory.dmp	upx
behavioral2/memory/3852-22-0x0000000000400000-0x00000000004B8000-memory.dmp	upx
behavioral2/memory/3852-23-0x0000000000400000-0x00000000004B8000-memory.dmp	upx
behavioral2/memory/3852-24-0x0000000000400000-0x00000000004B8000-memory.dmp	upx
behavioral2/memory/3852-25-0x0000000000400000-0x00000000004B8000-memory.dmp	upx
behavioral2/memory/3852-26-0x0000000000400000-0x00000000004B8000-memory.dmp	upx
behavioral2/memory/3852-27-0x0000000000400000-0x00000000004B8000-memory.dmp	upx
behavioral2/memory/3852-28-0x0000000000400000-0x00000000004B8000-memory.dmp	upx
behavioral2/memory/3852-29-0x0000000000400000-0x00000000004B8000-memory.dmp	upx
behavioral2/memory/3852-30-0x0000000000400000-0x00000000004B8000-memory.dmp	upx
behavioral2/memory/3852-31-0x0000000000400000-0x00000000004B8000-memory.dmp	upx
behavioral2/memory/3852-32-0x0000000000400000-0x00000000004B8000-memory.dmp	upx
behavioral2/memory/3852-33-0x0000000000400000-0x00000000004B8000-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-1-5-21-259785868-298165991-4178590326-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	fdacdb5e42a2764ecb7af4feedf8a7de_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-259785868-298165991-4178590326-1000\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 48 IoCs

Processes:

fdacdb5e42a2764ecb7af4feedf8a7de_JaffaCakes118.exemsdcsc.exe

description	pid	Process
Token: SeIncreaseQuotaPrivilege	1612	fdacdb5e42a2764ecb7af4feedf8a7de_JaffaCakes118.exe
Token: SeSecurityPrivilege	1612	fdacdb5e42a2764ecb7af4feedf8a7de_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	1612	fdacdb5e42a2764ecb7af4feedf8a7de_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	1612	fdacdb5e42a2764ecb7af4feedf8a7de_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	1612	fdacdb5e42a2764ecb7af4feedf8a7de_JaffaCakes118.exe
Token: SeSystemtimePrivilege	1612	fdacdb5e42a2764ecb7af4feedf8a7de_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	1612	fdacdb5e42a2764ecb7af4feedf8a7de_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	1612	fdacdb5e42a2764ecb7af4feedf8a7de_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	1612	fdacdb5e42a2764ecb7af4feedf8a7de_JaffaCakes118.exe
Token: SeBackupPrivilege	1612	fdacdb5e42a2764ecb7af4feedf8a7de_JaffaCakes118.exe
Token: SeRestorePrivilege	1612	fdacdb5e42a2764ecb7af4feedf8a7de_JaffaCakes118.exe
Token: SeShutdownPrivilege	1612	fdacdb5e42a2764ecb7af4feedf8a7de_JaffaCakes118.exe
Token: SeDebugPrivilege	1612	fdacdb5e42a2764ecb7af4feedf8a7de_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	1612	fdacdb5e42a2764ecb7af4feedf8a7de_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	1612	fdacdb5e42a2764ecb7af4feedf8a7de_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	1612	fdacdb5e42a2764ecb7af4feedf8a7de_JaffaCakes118.exe
Token: SeUndockPrivilege	1612	fdacdb5e42a2764ecb7af4feedf8a7de_JaffaCakes118.exe
Token: SeManageVolumePrivilege	1612	fdacdb5e42a2764ecb7af4feedf8a7de_JaffaCakes118.exe
Token: SeImpersonatePrivilege	1612	fdacdb5e42a2764ecb7af4feedf8a7de_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	1612	fdacdb5e42a2764ecb7af4feedf8a7de_JaffaCakes118.exe
Token: 33	1612	fdacdb5e42a2764ecb7af4feedf8a7de_JaffaCakes118.exe
Token: 34	1612	fdacdb5e42a2764ecb7af4feedf8a7de_JaffaCakes118.exe
Token: 35	1612	fdacdb5e42a2764ecb7af4feedf8a7de_JaffaCakes118.exe
Token: 36	1612	fdacdb5e42a2764ecb7af4feedf8a7de_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	3852	msdcsc.exe
Token: SeSecurityPrivilege	3852	msdcsc.exe
Token: SeTakeOwnershipPrivilege	3852	msdcsc.exe
Token: SeLoadDriverPrivilege	3852	msdcsc.exe
Token: SeSystemProfilePrivilege	3852	msdcsc.exe
Token: SeSystemtimePrivilege	3852	msdcsc.exe
Token: SeProfSingleProcessPrivilege	3852	msdcsc.exe
Token: SeIncBasePriorityPrivilege	3852	msdcsc.exe
Token: SeCreatePagefilePrivilege	3852	msdcsc.exe
Token: SeBackupPrivilege	3852	msdcsc.exe
Token: SeRestorePrivilege	3852	msdcsc.exe
Token: SeShutdownPrivilege	3852	msdcsc.exe
Token: SeDebugPrivilege	3852	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	3852	msdcsc.exe
Token: SeChangeNotifyPrivilege	3852	msdcsc.exe
Token: SeRemoteShutdownPrivilege	3852	msdcsc.exe
Token: SeUndockPrivilege	3852	msdcsc.exe
Token: SeManageVolumePrivilege	3852	msdcsc.exe
Token: SeImpersonatePrivilege	3852	msdcsc.exe
Token: SeCreateGlobalPrivilege	3852	msdcsc.exe
Token: 33	3852	msdcsc.exe
Token: 34	3852	msdcsc.exe
Token: 35	3852	msdcsc.exe
Token: 36	3852	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

msdcsc.exe

pid	Process
3852	msdcsc.exe

Suspicious use of WriteProcessMemory 25 IoCs

Processes:

fdacdb5e42a2764ecb7af4feedf8a7de_JaffaCakes118.exemsdcsc.exe

description	pid	Process	procid_target
PID 1612 wrote to memory of 3852	1612	fdacdb5e42a2764ecb7af4feedf8a7de_JaffaCakes118.exe	91
PID 1612 wrote to memory of 3852	1612	fdacdb5e42a2764ecb7af4feedf8a7de_JaffaCakes118.exe	91
PID 1612 wrote to memory of 3852	1612	fdacdb5e42a2764ecb7af4feedf8a7de_JaffaCakes118.exe	91
PID 3852 wrote to memory of 3548	3852	msdcsc.exe	92
PID 3852 wrote to memory of 3548	3852	msdcsc.exe	92
PID 3852 wrote to memory of 3548	3852	msdcsc.exe	92
PID 3852 wrote to memory of 3548	3852	msdcsc.exe	92
PID 3852 wrote to memory of 3548	3852	msdcsc.exe	92
PID 3852 wrote to memory of 3548	3852	msdcsc.exe	92
PID 3852 wrote to memory of 3548	3852	msdcsc.exe	92
PID 3852 wrote to memory of 3548	3852	msdcsc.exe	92
PID 3852 wrote to memory of 3548	3852	msdcsc.exe	92
PID 3852 wrote to memory of 3548	3852	msdcsc.exe	92
PID 3852 wrote to memory of 3548	3852	msdcsc.exe	92
PID 3852 wrote to memory of 3548	3852	msdcsc.exe	92
PID 3852 wrote to memory of 3548	3852	msdcsc.exe	92
PID 3852 wrote to memory of 3548	3852	msdcsc.exe	92
PID 3852 wrote to memory of 3548	3852	msdcsc.exe	92
PID 3852 wrote to memory of 3548	3852	msdcsc.exe	92
PID 3852 wrote to memory of 3548	3852	msdcsc.exe	92
PID 3852 wrote to memory of 3548	3852	msdcsc.exe	92
PID 3852 wrote to memory of 3548	3852	msdcsc.exe	92
PID 3852 wrote to memory of 3548	3852	msdcsc.exe	92
PID 3852 wrote to memory of 3548	3852	msdcsc.exe	92
PID 3852 wrote to memory of 3548	3852	msdcsc.exe	92

C:\Users\Admin\AppData\Local\Temp\fdacdb5e42a2764ecb7af4feedf8a7de_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\fdacdb5e42a2764ecb7af4feedf8a7de_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:1612
- 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:3852
- - C:\Windows\SysWOW64\notepad.exe
    notepad
    3⤵
    PID:3548

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
254KB

MD5
fdacdb5e42a2764ecb7af4feedf8a7de

SHA1
1a4d5c98d6e8ffbdf3b0b71e80632ff5efb9f25c

SHA256
17a2b57aac91aee6d92c8825635f5a42eefe1081b4d89837c3c72c0bed24fb8a

SHA512
05edacea5a42297a735f9c1ed3dd320786d51d9974b96586369e2e750d1cfaa95f8b4659c2dbe7c72e76e5f6cf3afff735ec7e406615793a661d1c7cef59d687

Download Submit
memory/1612-1-0x0000000000680000-0x0000000000681000-memory.dmp

Filesize
4KB

Download
memory/1612-0-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/1612-18-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/3548-17-0x0000000000BB0000-0x0000000000BB1000-memory.dmp

Filesize
4KB

Download
memory/3852-22-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/3852-26-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/3852-19-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/3852-20-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/3852-21-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/3852-15-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/3852-23-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/3852-24-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/3852-25-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/3852-16-0x0000000002700000-0x0000000002701000-memory.dmp

Filesize
4KB

Download
memory/3852-27-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/3852-28-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/3852-29-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/3852-30-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/3852-31-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/3852-32-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/3852-33-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download