darkcomet | e62a4691aa6400e577127e91a57a6b3a8636836b234c885099dffd90be98f072

Analysis

max time kernel
154s
max time network
160s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
20-04-2024 00:53

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General

Target

fb8e1534329adc7639e908f62b48bb52_JaffaCakes118.exe
Size

756KB
MD5

fb8e1534329adc7639e908f62b48bb52
SHA1

82385f786fe919ec65311c36280ec7d2de02c564
SHA256

e62a4691aa6400e577127e91a57a6b3a8636836b234c885099dffd90be98f072
SHA512

55f58d7f8698bd53c94cea21e7d98ab67cf47a1b2614b1aa19f67716691b947723d8559a54cb98f10a7a5483883accfef674c53f01c2a4ee94acc93ab0ea341f
SSDEEP

12288:d9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9EkNC/aMsE3:3Z1xuVVjfFoynPaVBUR8f+kN10Eda+3

Score

10^/10

darkcomet guest16 evasion persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

soronopkzelite.no-ip.org:70

Mutex

DC_MUTEX-6QU9SKK

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
iSevFmhtikT2
install
true
offline_keylogger
true
persistence
false
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:

fb8e1534329adc7639e908f62b48bb52_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"	fb8e1534329adc7639e908f62b48bb52_JaffaCakes118.exe

Modifies firewall policy service 2 TTPs 6 IoCs

evasion

Modify Registry

T1112

Windows Service

T1543.003

Processes:

msdcsc.exeiexplore.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
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	iexplore.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0"	iexplore.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "0"	iexplore.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
4776	attrib.exe
488	attrib.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

Processes:

fb8e1534329adc7639e908f62b48bb52_JaffaCakes118.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	fb8e1534329adc7639e908f62b48bb52_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid	Process
5108	msdcsc.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

fb8e1534329adc7639e908f62b48bb52_JaffaCakes118.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	fb8e1534329adc7639e908f62b48bb52_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

msdcsc.exe

description	pid	Process	procid_target
PID 5108 set thread context of 2228	5108	msdcsc.exe	98

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
2228	iexplore.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

fb8e1534329adc7639e908f62b48bb52_JaffaCakes118.exemsdcsc.exeiexplore.exe

description	pid	Process
Token: SeIncreaseQuotaPrivilege	1804	fb8e1534329adc7639e908f62b48bb52_JaffaCakes118.exe
Token: SeSecurityPrivilege	1804	fb8e1534329adc7639e908f62b48bb52_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	1804	fb8e1534329adc7639e908f62b48bb52_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	1804	fb8e1534329adc7639e908f62b48bb52_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	1804	fb8e1534329adc7639e908f62b48bb52_JaffaCakes118.exe
Token: SeSystemtimePrivilege	1804	fb8e1534329adc7639e908f62b48bb52_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	1804	fb8e1534329adc7639e908f62b48bb52_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	1804	fb8e1534329adc7639e908f62b48bb52_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	1804	fb8e1534329adc7639e908f62b48bb52_JaffaCakes118.exe
Token: SeBackupPrivilege	1804	fb8e1534329adc7639e908f62b48bb52_JaffaCakes118.exe
Token: SeRestorePrivilege	1804	fb8e1534329adc7639e908f62b48bb52_JaffaCakes118.exe
Token: SeShutdownPrivilege	1804	fb8e1534329adc7639e908f62b48bb52_JaffaCakes118.exe
Token: SeDebugPrivilege	1804	fb8e1534329adc7639e908f62b48bb52_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	1804	fb8e1534329adc7639e908f62b48bb52_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	1804	fb8e1534329adc7639e908f62b48bb52_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	1804	fb8e1534329adc7639e908f62b48bb52_JaffaCakes118.exe
Token: SeUndockPrivilege	1804	fb8e1534329adc7639e908f62b48bb52_JaffaCakes118.exe
Token: SeManageVolumePrivilege	1804	fb8e1534329adc7639e908f62b48bb52_JaffaCakes118.exe
Token: SeImpersonatePrivilege	1804	fb8e1534329adc7639e908f62b48bb52_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	1804	fb8e1534329adc7639e908f62b48bb52_JaffaCakes118.exe
Token: 33	1804	fb8e1534329adc7639e908f62b48bb52_JaffaCakes118.exe
Token: 34	1804	fb8e1534329adc7639e908f62b48bb52_JaffaCakes118.exe
Token: 35	1804	fb8e1534329adc7639e908f62b48bb52_JaffaCakes118.exe
Token: 36	1804	fb8e1534329adc7639e908f62b48bb52_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	5108	msdcsc.exe
Token: SeSecurityPrivilege	5108	msdcsc.exe
Token: SeTakeOwnershipPrivilege	5108	msdcsc.exe
Token: SeLoadDriverPrivilege	5108	msdcsc.exe
Token: SeSystemProfilePrivilege	5108	msdcsc.exe
Token: SeSystemtimePrivilege	5108	msdcsc.exe
Token: SeProfSingleProcessPrivilege	5108	msdcsc.exe
Token: SeIncBasePriorityPrivilege	5108	msdcsc.exe
Token: SeCreatePagefilePrivilege	5108	msdcsc.exe
Token: SeBackupPrivilege	5108	msdcsc.exe
Token: SeRestorePrivilege	5108	msdcsc.exe
Token: SeShutdownPrivilege	5108	msdcsc.exe
Token: SeDebugPrivilege	5108	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	5108	msdcsc.exe
Token: SeChangeNotifyPrivilege	5108	msdcsc.exe
Token: SeRemoteShutdownPrivilege	5108	msdcsc.exe
Token: SeUndockPrivilege	5108	msdcsc.exe
Token: SeManageVolumePrivilege	5108	msdcsc.exe
Token: SeImpersonatePrivilege	5108	msdcsc.exe
Token: SeCreateGlobalPrivilege	5108	msdcsc.exe
Token: 33	5108	msdcsc.exe
Token: 34	5108	msdcsc.exe
Token: 35	5108	msdcsc.exe
Token: 36	5108	msdcsc.exe
Token: SeIncreaseQuotaPrivilege	2228	iexplore.exe
Token: SeSecurityPrivilege	2228	iexplore.exe
Token: SeTakeOwnershipPrivilege	2228	iexplore.exe
Token: SeLoadDriverPrivilege	2228	iexplore.exe
Token: SeSystemProfilePrivilege	2228	iexplore.exe
Token: SeSystemtimePrivilege	2228	iexplore.exe
Token: SeProfSingleProcessPrivilege	2228	iexplore.exe
Token: SeIncBasePriorityPrivilege	2228	iexplore.exe
Token: SeCreatePagefilePrivilege	2228	iexplore.exe
Token: SeBackupPrivilege	2228	iexplore.exe
Token: SeRestorePrivilege	2228	iexplore.exe
Token: SeShutdownPrivilege	2228	iexplore.exe
Token: SeDebugPrivilege	2228	iexplore.exe
Token: SeSystemEnvironmentPrivilege	2228	iexplore.exe
Token: SeChangeNotifyPrivilege	2228	iexplore.exe
Token: SeRemoteShutdownPrivilege	2228	iexplore.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

iexplore.exe

pid	Process
2228	iexplore.exe

Suspicious use of WriteProcessMemory 42 IoCs

Processes:

fb8e1534329adc7639e908f62b48bb52_JaffaCakes118.execmd.execmd.exemsdcsc.exeiexplore.exe

description	pid	Process	procid_target
PID 1804 wrote to memory of 2192	1804	fb8e1534329adc7639e908f62b48bb52_JaffaCakes118.exe	91
PID 1804 wrote to memory of 2192	1804	fb8e1534329adc7639e908f62b48bb52_JaffaCakes118.exe	91
PID 1804 wrote to memory of 2192	1804	fb8e1534329adc7639e908f62b48bb52_JaffaCakes118.exe	91
PID 1804 wrote to memory of 3340	1804	fb8e1534329adc7639e908f62b48bb52_JaffaCakes118.exe	93
PID 1804 wrote to memory of 3340	1804	fb8e1534329adc7639e908f62b48bb52_JaffaCakes118.exe	93
PID 1804 wrote to memory of 3340	1804	fb8e1534329adc7639e908f62b48bb52_JaffaCakes118.exe	93
PID 1804 wrote to memory of 5108	1804	fb8e1534329adc7639e908f62b48bb52_JaffaCakes118.exe	95
PID 1804 wrote to memory of 5108	1804	fb8e1534329adc7639e908f62b48bb52_JaffaCakes118.exe	95
PID 1804 wrote to memory of 5108	1804	fb8e1534329adc7639e908f62b48bb52_JaffaCakes118.exe	95
PID 3340 wrote to memory of 4776	3340	cmd.exe	96
PID 3340 wrote to memory of 4776	3340	cmd.exe	96
PID 3340 wrote to memory of 4776	3340	cmd.exe	96
PID 2192 wrote to memory of 488	2192	cmd.exe	97
PID 2192 wrote to memory of 488	2192	cmd.exe	97
PID 2192 wrote to memory of 488	2192	cmd.exe	97
PID 5108 wrote to memory of 2228	5108	msdcsc.exe	98
PID 5108 wrote to memory of 2228	5108	msdcsc.exe	98
PID 5108 wrote to memory of 2228	5108	msdcsc.exe	98
PID 5108 wrote to memory of 2228	5108	msdcsc.exe	98
PID 5108 wrote to memory of 2228	5108	msdcsc.exe	98
PID 2228 wrote to memory of 1392	2228	iexplore.exe	99
PID 2228 wrote to memory of 1392	2228	iexplore.exe	99
PID 2228 wrote to memory of 1392	2228	iexplore.exe	99
PID 2228 wrote to memory of 1392	2228	iexplore.exe	99
PID 2228 wrote to memory of 1392	2228	iexplore.exe	99
PID 2228 wrote to memory of 1392	2228	iexplore.exe	99
PID 2228 wrote to memory of 1392	2228	iexplore.exe	99
PID 2228 wrote to memory of 1392	2228	iexplore.exe	99
PID 2228 wrote to memory of 1392	2228	iexplore.exe	99
PID 2228 wrote to memory of 1392	2228	iexplore.exe	99
PID 2228 wrote to memory of 1392	2228	iexplore.exe	99
PID 2228 wrote to memory of 1392	2228	iexplore.exe	99
PID 2228 wrote to memory of 1392	2228	iexplore.exe	99
PID 2228 wrote to memory of 1392	2228	iexplore.exe	99
PID 2228 wrote to memory of 1392	2228	iexplore.exe	99
PID 2228 wrote to memory of 1392	2228	iexplore.exe	99
PID 2228 wrote to memory of 1392	2228	iexplore.exe	99
PID 2228 wrote to memory of 1392	2228	iexplore.exe	99
PID 2228 wrote to memory of 1392	2228	iexplore.exe	99
PID 2228 wrote to memory of 1392	2228	iexplore.exe	99
PID 2228 wrote to memory of 1392	2228	iexplore.exe	99
PID 2228 wrote to memory of 1392	2228	iexplore.exe	99

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1564.001

Processes:

attrib.exeattrib.exe

pid	Process
4776	attrib.exe
488	attrib.exe

C:\Users\Admin\AppData\Local\Temp\fb8e1534329adc7639e908f62b48bb52_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\fb8e1534329adc7639e908f62b48bb52_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:1804
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\fb8e1534329adc7639e908f62b48bb52_JaffaCakes118.exe" +s +h
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2192
- - C:\Windows\SysWOW64\attrib.exe
    attrib "C:\Users\Admin\AppData\Local\Temp\fb8e1534329adc7639e908f62b48bb52_JaffaCakes118.exe" +s +h
    3⤵
    - Sets file to hidden
    - Views/modifies file attributes
    PID:488
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3340
- - C:\Windows\SysWOW64\attrib.exe
    attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
    3⤵
    - Sets file to hidden
    - Views/modifies file attributes
    PID:4776
- C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
  "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
  2⤵
  - Modifies firewall policy service
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:5108
- - C:\Program Files (x86)\Internet Explorer\iexplore.exe
    "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
    3⤵
    - Modifies firewall policy service
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2228
  - - C:\Windows\SysWOW64\notepad.exe
      notepad
      4⤵
      PID:1392

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3972 --field-trial-handle=2900,i,14549994492153927475,12895178890800740987,262144 --variations-seed-version /prefetch:8
1⤵
PID:2324

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

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

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
756KB

MD5
fb8e1534329adc7639e908f62b48bb52

SHA1
82385f786fe919ec65311c36280ec7d2de02c564

SHA256
e62a4691aa6400e577127e91a57a6b3a8636836b234c885099dffd90be98f072

SHA512
55f58d7f8698bd53c94cea21e7d98ab67cf47a1b2614b1aa19f67716691b947723d8559a54cb98f10a7a5483883accfef674c53f01c2a4ee94acc93ab0ea341f

Download Submit
memory/1392-18-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/1804-0-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/1804-1-0x00000000023D0000-0x00000000023D1000-memory.dmp

Filesize
4KB

Download
memory/1804-14-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/2228-16-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/5108-15-0x00000000006B0000-0x00000000006B1000-memory.dmp

Filesize
4KB

Download
memory/5108-17-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download