darkcomet | 015ec58cb97d14a77b7898ad4e5eace577b09bff6c11f6fcfeb6c69e9fb39da3

Analysis

max time kernel
150s
max time network
144s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
29-11-2024 02:57

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General

Target

ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe
Size

757KB
MD5

ae73974ea6a5f73f5eec469ae21cb5b1
SHA1

ab3a9f8c87b7e5b3d767f7ff4f4d9717f8d83028
SHA256

015ec58cb97d14a77b7898ad4e5eace577b09bff6c11f6fcfeb6c69e9fb39da3
SHA512

a52d65ceaeb5114ab93e88ef653c16da66807daf634fc257f03a2681092d1bb2e5859a3fe1abb0ac1da657068baa0c8f8b3f3608fd9aca996d27f92b04dbde4e
SSDEEP

12288:19HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hq:/Z1xuVVjfFoynPaVBUR8f+kN10EBk

Score

10^/10

darkcomet guest16 discovery evasion persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

192.168.254.101:21

Mutex

DC_MUTEX-Z73GK6V

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
5NjaRP5UK4R1
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\\AppData\\Local\\Temp\\MSDCSC\\msdcsc.exe"	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.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

pid	Process
4252	attrib.exe
3112	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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
4764	notepad.exe

Executes dropped EXE 1 IoCs

pid	Process
3664	msdcsc.exe

Adds Run key to start application 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MSDCSC\\msdcsc.exe"	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MSDCSC\\msdcsc.exe"	msdcsc.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MSDCSC\\msdcsc.exe"	iexplore.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3664 set thread context of 2212	3664	msdcsc.exe	95

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 9 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	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	iexplore.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2212	iexplore.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	4652	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe
Token: SeSecurityPrivilege	4652	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	4652	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	4652	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	4652	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe
Token: SeSystemtimePrivilege	4652	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	4652	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	4652	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	4652	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe
Token: SeBackupPrivilege	4652	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe
Token: SeRestorePrivilege	4652	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe
Token: SeShutdownPrivilege	4652	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe
Token: SeDebugPrivilege	4652	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	4652	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	4652	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	4652	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe
Token: SeUndockPrivilege	4652	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe
Token: SeManageVolumePrivilege	4652	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe
Token: SeImpersonatePrivilege	4652	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	4652	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe
Token: 33	4652	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe
Token: 34	4652	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe
Token: 35	4652	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe
Token: 36	4652	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	3664	msdcsc.exe
Token: SeSecurityPrivilege	3664	msdcsc.exe
Token: SeTakeOwnershipPrivilege	3664	msdcsc.exe
Token: SeLoadDriverPrivilege	3664	msdcsc.exe
Token: SeSystemProfilePrivilege	3664	msdcsc.exe
Token: SeSystemtimePrivilege	3664	msdcsc.exe
Token: SeProfSingleProcessPrivilege	3664	msdcsc.exe
Token: SeIncBasePriorityPrivilege	3664	msdcsc.exe
Token: SeCreatePagefilePrivilege	3664	msdcsc.exe
Token: SeBackupPrivilege	3664	msdcsc.exe
Token: SeRestorePrivilege	3664	msdcsc.exe
Token: SeShutdownPrivilege	3664	msdcsc.exe
Token: SeDebugPrivilege	3664	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	3664	msdcsc.exe
Token: SeChangeNotifyPrivilege	3664	msdcsc.exe
Token: SeRemoteShutdownPrivilege	3664	msdcsc.exe
Token: SeUndockPrivilege	3664	msdcsc.exe
Token: SeManageVolumePrivilege	3664	msdcsc.exe
Token: SeImpersonatePrivilege	3664	msdcsc.exe
Token: SeCreateGlobalPrivilege	3664	msdcsc.exe
Token: 33	3664	msdcsc.exe
Token: 34	3664	msdcsc.exe
Token: 35	3664	msdcsc.exe
Token: 36	3664	msdcsc.exe
Token: SeIncreaseQuotaPrivilege	2212	iexplore.exe
Token: SeSecurityPrivilege	2212	iexplore.exe
Token: SeTakeOwnershipPrivilege	2212	iexplore.exe
Token: SeLoadDriverPrivilege	2212	iexplore.exe
Token: SeSystemProfilePrivilege	2212	iexplore.exe
Token: SeSystemtimePrivilege	2212	iexplore.exe
Token: SeProfSingleProcessPrivilege	2212	iexplore.exe
Token: SeIncBasePriorityPrivilege	2212	iexplore.exe
Token: SeCreatePagefilePrivilege	2212	iexplore.exe
Token: SeBackupPrivilege	2212	iexplore.exe
Token: SeRestorePrivilege	2212	iexplore.exe
Token: SeShutdownPrivilege	2212	iexplore.exe
Token: SeDebugPrivilege	2212	iexplore.exe
Token: SeSystemEnvironmentPrivilege	2212	iexplore.exe
Token: SeChangeNotifyPrivilege	2212	iexplore.exe
Token: SeRemoteShutdownPrivilege	2212	iexplore.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2212	iexplore.exe

Suspicious use of WriteProcessMemory 59 IoCs

description	pid	Process	procid_target
PID 4652 wrote to memory of 1632	4652	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe	87
PID 4652 wrote to memory of 1632	4652	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe	87
PID 4652 wrote to memory of 1632	4652	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe	87
PID 4652 wrote to memory of 1924	4652	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe	89
PID 4652 wrote to memory of 1924	4652	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe	89
PID 4652 wrote to memory of 1924	4652	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe	89
PID 4652 wrote to memory of 4764	4652	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe	90
PID 4652 wrote to memory of 4764	4652	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe	90
PID 4652 wrote to memory of 4764	4652	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe	90
PID 4652 wrote to memory of 4764	4652	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe	90
PID 4652 wrote to memory of 4764	4652	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe	90
PID 4652 wrote to memory of 4764	4652	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe	90
PID 4652 wrote to memory of 4764	4652	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe	90
PID 4652 wrote to memory of 4764	4652	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe	90
PID 4652 wrote to memory of 4764	4652	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe	90
PID 4652 wrote to memory of 4764	4652	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe	90
PID 4652 wrote to memory of 4764	4652	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe	90
PID 4652 wrote to memory of 4764	4652	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe	90
PID 4652 wrote to memory of 4764	4652	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe	90
PID 4652 wrote to memory of 4764	4652	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe	90
PID 4652 wrote to memory of 4764	4652	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe	90
PID 4652 wrote to memory of 4764	4652	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe	90
PID 4652 wrote to memory of 4764	4652	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe	90
PID 4652 wrote to memory of 3664	4652	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe	92
PID 4652 wrote to memory of 3664	4652	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe	92
PID 4652 wrote to memory of 3664	4652	ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe	92
PID 1632 wrote to memory of 4252	1632	cmd.exe	93
PID 1632 wrote to memory of 4252	1632	cmd.exe	93
PID 1632 wrote to memory of 4252	1632	cmd.exe	93
PID 1924 wrote to memory of 3112	1924	cmd.exe	94
PID 1924 wrote to memory of 3112	1924	cmd.exe	94
PID 1924 wrote to memory of 3112	1924	cmd.exe	94
PID 3664 wrote to memory of 2212	3664	msdcsc.exe	95
PID 3664 wrote to memory of 2212	3664	msdcsc.exe	95
PID 3664 wrote to memory of 2212	3664	msdcsc.exe	95
PID 3664 wrote to memory of 2212	3664	msdcsc.exe	95
PID 3664 wrote to memory of 2212	3664	msdcsc.exe	95
PID 2212 wrote to memory of 60	2212	iexplore.exe	96
PID 2212 wrote to memory of 60	2212	iexplore.exe	96
PID 2212 wrote to memory of 60	2212	iexplore.exe	96
PID 2212 wrote to memory of 60	2212	iexplore.exe	96
PID 2212 wrote to memory of 60	2212	iexplore.exe	96
PID 2212 wrote to memory of 60	2212	iexplore.exe	96
PID 2212 wrote to memory of 60	2212	iexplore.exe	96
PID 2212 wrote to memory of 60	2212	iexplore.exe	96
PID 2212 wrote to memory of 60	2212	iexplore.exe	96
PID 2212 wrote to memory of 60	2212	iexplore.exe	96
PID 2212 wrote to memory of 60	2212	iexplore.exe	96
PID 2212 wrote to memory of 60	2212	iexplore.exe	96
PID 2212 wrote to memory of 60	2212	iexplore.exe	96
PID 2212 wrote to memory of 60	2212	iexplore.exe	96
PID 2212 wrote to memory of 60	2212	iexplore.exe	96
PID 2212 wrote to memory of 60	2212	iexplore.exe	96
PID 2212 wrote to memory of 60	2212	iexplore.exe	96
PID 2212 wrote to memory of 60	2212	iexplore.exe	96
PID 2212 wrote to memory of 60	2212	iexplore.exe	96
PID 2212 wrote to memory of 60	2212	iexplore.exe	96
PID 2212 wrote to memory of 60	2212	iexplore.exe	96
PID 2212 wrote to memory of 60	2212	iexplore.exe	96

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
4252	attrib.exe
3112	attrib.exe

C:\Users\Admin\AppData\Local\Temp\ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- Drops file in Drivers directory
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4652
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe" +s +h
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1632
- - C:\Windows\SysWOW64\attrib.exe
    attrib "C:\Users\Admin\AppData\Local\Temp\ae73974ea6a5f73f5eec469ae21cb5b1_JaffaCakes118.exe" +s +h
    3⤵
    - Sets file to hidden
    - System Location Discovery: System Language Discovery
    - Views/modifies file attributes
    PID:4252
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1924
- - C:\Windows\SysWOW64\attrib.exe
    attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
    3⤵
    - Sets file to hidden
    - System Location Discovery: System Language Discovery
    - Views/modifies file attributes
    PID:3112
- C:\Windows\SysWOW64\notepad.exe
  notepad
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4764
- C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
  "C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3664
- - C:\Program Files (x86)\Internet Explorer\iexplore.exe
    "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
    3⤵
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2212
  - - C:\Windows\SysWOW64\notepad.exe
      notepad
      4⤵
      System Location Discovery: System Language Discovery
      PID:60

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

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

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

C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe

Filesize
757KB

MD5
ae73974ea6a5f73f5eec469ae21cb5b1

SHA1
ab3a9f8c87b7e5b3d767f7ff4f4d9717f8d83028

SHA256
015ec58cb97d14a77b7898ad4e5eace577b09bff6c11f6fcfeb6c69e9fb39da3

SHA512
a52d65ceaeb5114ab93e88ef653c16da66807daf634fc257f03a2681092d1bb2e5859a3fe1abb0ac1da657068baa0c8f8b3f3608fd9aca996d27f92b04dbde4e

Download Submit
memory/60-18-0x00000000008E0000-0x00000000008E1000-memory.dmp

Filesize
4KB

Download
memory/2212-16-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/3664-17-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/4652-0-0x0000000002280000-0x0000000002281000-memory.dmp

Filesize
4KB

Download
memory/4652-19-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/4764-5-0x0000000000420000-0x0000000000421000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads