darkcomet | 438d2ed17d7a6b8e0cb6267072fc2b8bf50c33d1507dc1849e9f1968f3acd287

Analysis

max time kernel
120s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
01-12-2024 11:14

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General

Target

438d2ed17d7a6b8e0cb6267072fc2b8bf50c33d1507dc1849e9f1968f3acd287N.exe
Size

2.8MB
MD5

b059b04942a14a27223f4bb9149d8eb0
SHA1

45ddf1c31abf3aeb85a4f691a4a6569fa4703707
SHA256

438d2ed17d7a6b8e0cb6267072fc2b8bf50c33d1507dc1849e9f1968f3acd287
SHA512

f8711e971d5fb24662ee09ef70451eead70e2e9b3291ce0dadfac0824fd8ea3778fd6cb8991bc25e49c2d057ea256489a5664a606db455eca366ec19b7e865dd
SSDEEP

49152:aELbVMTrOq4qQoJZdiyqcsxWjI9I/KTvUwhq5:a6b+f7QoPjIS/KTMwE

Score

10^/10

darkcomet guest16 discovery evasion persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

kbotdarkorbit.no-ip.org:10

189.186.45.5:10

192.168.1.196:10

Mutex

DC_MUTEX-RK3KJAL

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
CYK1BgXzzXZt
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"	Pinguino.exe

Modifies firewall policy service 3 TTPs 3 IoCs

evasion

Modify Registry

T1112

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

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

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	Pinguino.exe

Executes dropped EXE 3 IoCs

pid	Process
3496	Pinguino.exe
4392	Pinguinino.exe
4416	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-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	Pinguino.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\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

System Location Discovery: System Language Discovery 1 TTPs 6 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	notepad.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	438d2ed17d7a6b8e0cb6267072fc2b8bf50c33d1507dc1849e9f1968f3acd287N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Pinguino.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Pinguinino.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
3496	Pinguino.exe
4392	Pinguinino.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	Pinguino.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	3496	Pinguino.exe
Token: SeSecurityPrivilege	3496	Pinguino.exe
Token: SeTakeOwnershipPrivilege	3496	Pinguino.exe
Token: SeLoadDriverPrivilege	3496	Pinguino.exe
Token: SeSystemProfilePrivilege	3496	Pinguino.exe
Token: SeSystemtimePrivilege	3496	Pinguino.exe
Token: SeProfSingleProcessPrivilege	3496	Pinguino.exe
Token: SeIncBasePriorityPrivilege	3496	Pinguino.exe
Token: SeCreatePagefilePrivilege	3496	Pinguino.exe
Token: SeBackupPrivilege	3496	Pinguino.exe
Token: SeRestorePrivilege	3496	Pinguino.exe
Token: SeShutdownPrivilege	3496	Pinguino.exe
Token: SeDebugPrivilege	3496	Pinguino.exe
Token: SeSystemEnvironmentPrivilege	3496	Pinguino.exe
Token: SeChangeNotifyPrivilege	3496	Pinguino.exe
Token: SeRemoteShutdownPrivilege	3496	Pinguino.exe
Token: SeUndockPrivilege	3496	Pinguino.exe
Token: SeManageVolumePrivilege	3496	Pinguino.exe
Token: SeImpersonatePrivilege	3496	Pinguino.exe
Token: SeCreateGlobalPrivilege	3496	Pinguino.exe
Token: 33	3496	Pinguino.exe
Token: 34	3496	Pinguino.exe
Token: 35	3496	Pinguino.exe
Token: 36	3496	Pinguino.exe
Token: SeIncreaseQuotaPrivilege	4416	msdcsc.exe
Token: SeSecurityPrivilege	4416	msdcsc.exe
Token: SeTakeOwnershipPrivilege	4416	msdcsc.exe
Token: SeLoadDriverPrivilege	4416	msdcsc.exe
Token: SeSystemProfilePrivilege	4416	msdcsc.exe
Token: SeSystemtimePrivilege	4416	msdcsc.exe
Token: SeProfSingleProcessPrivilege	4416	msdcsc.exe
Token: SeIncBasePriorityPrivilege	4416	msdcsc.exe
Token: SeCreatePagefilePrivilege	4416	msdcsc.exe
Token: SeBackupPrivilege	4416	msdcsc.exe
Token: SeRestorePrivilege	4416	msdcsc.exe
Token: SeShutdownPrivilege	4416	msdcsc.exe
Token: SeDebugPrivilege	4416	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	4416	msdcsc.exe
Token: SeChangeNotifyPrivilege	4416	msdcsc.exe
Token: SeRemoteShutdownPrivilege	4416	msdcsc.exe
Token: SeUndockPrivilege	4416	msdcsc.exe
Token: SeManageVolumePrivilege	4416	msdcsc.exe
Token: SeImpersonatePrivilege	4416	msdcsc.exe
Token: SeCreateGlobalPrivilege	4416	msdcsc.exe
Token: 33	4416	msdcsc.exe
Token: 34	4416	msdcsc.exe
Token: 35	4416	msdcsc.exe
Token: 36	4416	msdcsc.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4456	438d2ed17d7a6b8e0cb6267072fc2b8bf50c33d1507dc1849e9f1968f3acd287N.exe
4416	msdcsc.exe

Suspicious use of WriteProcessMemory 48 IoCs

description	pid	Process	procid_target
PID 4456 wrote to memory of 3496	4456	438d2ed17d7a6b8e0cb6267072fc2b8bf50c33d1507dc1849e9f1968f3acd287N.exe	83
PID 4456 wrote to memory of 3496	4456	438d2ed17d7a6b8e0cb6267072fc2b8bf50c33d1507dc1849e9f1968f3acd287N.exe	83
PID 4456 wrote to memory of 3496	4456	438d2ed17d7a6b8e0cb6267072fc2b8bf50c33d1507dc1849e9f1968f3acd287N.exe	83
PID 4456 wrote to memory of 4392	4456	438d2ed17d7a6b8e0cb6267072fc2b8bf50c33d1507dc1849e9f1968f3acd287N.exe	84
PID 4456 wrote to memory of 4392	4456	438d2ed17d7a6b8e0cb6267072fc2b8bf50c33d1507dc1849e9f1968f3acd287N.exe	84
PID 4456 wrote to memory of 4392	4456	438d2ed17d7a6b8e0cb6267072fc2b8bf50c33d1507dc1849e9f1968f3acd287N.exe	84
PID 3496 wrote to memory of 3272	3496	Pinguino.exe	85
PID 3496 wrote to memory of 3272	3496	Pinguino.exe	85
PID 3496 wrote to memory of 3272	3496	Pinguino.exe	85
PID 3496 wrote to memory of 3272	3496	Pinguino.exe	85
PID 3496 wrote to memory of 3272	3496	Pinguino.exe	85
PID 3496 wrote to memory of 3272	3496	Pinguino.exe	85
PID 3496 wrote to memory of 3272	3496	Pinguino.exe	85
PID 3496 wrote to memory of 3272	3496	Pinguino.exe	85
PID 3496 wrote to memory of 3272	3496	Pinguino.exe	85
PID 3496 wrote to memory of 3272	3496	Pinguino.exe	85
PID 3496 wrote to memory of 3272	3496	Pinguino.exe	85
PID 3496 wrote to memory of 3272	3496	Pinguino.exe	85
PID 3496 wrote to memory of 3272	3496	Pinguino.exe	85
PID 3496 wrote to memory of 3272	3496	Pinguino.exe	85
PID 3496 wrote to memory of 3272	3496	Pinguino.exe	85
PID 3496 wrote to memory of 3272	3496	Pinguino.exe	85
PID 3496 wrote to memory of 3272	3496	Pinguino.exe	85
PID 3496 wrote to memory of 4416	3496	Pinguino.exe	86
PID 3496 wrote to memory of 4416	3496	Pinguino.exe	86
PID 3496 wrote to memory of 4416	3496	Pinguino.exe	86
PID 4416 wrote to memory of 3036	4416	msdcsc.exe	87
PID 4416 wrote to memory of 3036	4416	msdcsc.exe	87
PID 4416 wrote to memory of 3036	4416	msdcsc.exe	87
PID 4416 wrote to memory of 3036	4416	msdcsc.exe	87
PID 4416 wrote to memory of 3036	4416	msdcsc.exe	87
PID 4416 wrote to memory of 3036	4416	msdcsc.exe	87
PID 4416 wrote to memory of 3036	4416	msdcsc.exe	87
PID 4416 wrote to memory of 3036	4416	msdcsc.exe	87
PID 4416 wrote to memory of 3036	4416	msdcsc.exe	87
PID 4416 wrote to memory of 3036	4416	msdcsc.exe	87
PID 4416 wrote to memory of 3036	4416	msdcsc.exe	87
PID 4416 wrote to memory of 3036	4416	msdcsc.exe	87
PID 4416 wrote to memory of 3036	4416	msdcsc.exe	87
PID 4416 wrote to memory of 3036	4416	msdcsc.exe	87
PID 4416 wrote to memory of 3036	4416	msdcsc.exe	87
PID 4416 wrote to memory of 3036	4416	msdcsc.exe	87
PID 4416 wrote to memory of 3036	4416	msdcsc.exe	87
PID 4416 wrote to memory of 3036	4416	msdcsc.exe	87
PID 4416 wrote to memory of 3036	4416	msdcsc.exe	87
PID 4416 wrote to memory of 3036	4416	msdcsc.exe	87
PID 4416 wrote to memory of 3036	4416	msdcsc.exe	87
PID 4416 wrote to memory of 3036	4416	msdcsc.exe	87

C:\Users\Admin\AppData\Local\Temp\438d2ed17d7a6b8e0cb6267072fc2b8bf50c33d1507dc1849e9f1968f3acd287N.exe
"C:\Users\Admin\AppData\Local\Temp\438d2ed17d7a6b8e0cb6267072fc2b8bf50c33d1507dc1849e9f1968f3acd287N.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4456
- C:\Users\Admin\AppData\Local\Temp\Pinguino.exe
  C:\Users\Admin\AppData\Local\Temp\Pinguino.exe
  2⤵
  - Modifies WinLogon for persistence
  - Checks computer location settings
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Modifies registry class
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3496
- - C:\Windows\SysWOW64\notepad.exe
    notepad
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3272
- - C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
    "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
    3⤵
    - Modifies firewall policy service
    - Executes dropped EXE
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:4416
  - - C:\Windows\SysWOW64\notepad.exe
      notepad
      4⤵
      System Location Discovery: System Language Discovery
      PID:3036
- C:\Users\Admin\AppData\Local\Temp\Pinguinino.exe
  C:\Users\Admin\AppData\Local\Temp\Pinguinino.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  PID:4392

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

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

System Network Configuration Discovery

T1016

Internet Connection Discovery

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\Pinguinino.exe

Filesize
2.0MB

MD5
912454c38854e21d9af16a272f5ef3e9

SHA1
50efd67b77951a0ab97da43307467aa369379b5e

SHA256
e1046e9aa8689c398dcd7a7f479b4c9d209e40f276217f63f1e0e2e7e09432db

SHA512
a3a3eaec78ded843013f2a21abdb44f3d3e71b0c2f9cb72088f23e31d1e70cd423df3aef4c92bdfb2609945918ccb520700796bc3f22ed52c5be7a535e965930

Download Submit
C:\Users\Admin\AppData\Local\Temp\Pinguino.exe

Filesize
758KB

MD5
d35174b7411449f97b526ed171d6efeb

SHA1
571ce1097e3f73a8aa0ad63ebf1cbe1230a407b3

SHA256
e0dc4f7eba7cb9c9c657e1ca70c51c5f3a25fe408cb90fa6f99807cfc24e67b9

SHA512
ae0a09328f6d60fb784b2ab02f92159a2dde928a024c978eacb2197ffa8d788f2cbaaac4e5d4afde353c34beac2c6a9b0e9a7d4156231491327f0c70edffa9f9

Download Submit
memory/3036-73-0x0000000000C70000-0x0000000000C71000-memory.dmp

Filesize
4KB

Download
memory/3272-13-0x0000000000890000-0x0000000000891000-memory.dmp

Filesize
4KB

Download
memory/3496-7-0x00000000022D0000-0x00000000022D1000-memory.dmp

Filesize
4KB

Download
memory/3496-70-0x0000000000400000-0x00000000004CD000-memory.dmp

Filesize
820KB

Download
memory/4392-75-0x0000000000400000-0x0000000000609000-memory.dmp

Filesize
2.0MB

Download
memory/4416-76-0x0000000000400000-0x00000000004CD000-memory.dmp

Filesize
820KB

Download
memory/4416-78-0x0000000000400000-0x00000000004CD000-memory.dmp

Filesize
820KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads