darkcomet | cfc2d17d7fe68e92efbbb7aa7b73881cb34abf1e7f4339017262d5e88bc6e1b2

Analysis

max time kernel
94s
max time network
142s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
26-11-2024 04:25

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General

Target

9fcf12283d2cdcf26403bff7fb401f4a_JaffaCakes118.exe
Size

1.1MB
MD5

9fcf12283d2cdcf26403bff7fb401f4a
SHA1

8ad723a588c0305a76b7da44ac325c465806f291
SHA256

cfc2d17d7fe68e92efbbb7aa7b73881cb34abf1e7f4339017262d5e88bc6e1b2
SHA512

ec4cc0d6cf86034f088e94a9b8eb725da2988b2ee3c27520e1a2dc2c163abe406dc9565ed84cb74d4cca51a772282b125d124331a024d8f5345fca63c80c3d8e
SSDEEP

24576:5MHjjQ5pLGmTqqGf4rL9EGlZH+scaEulF5xoC/5Iq:aAHim+5DGq5duln2E

Score

10^/10

darkcomet guest16 discovery evasion persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

ultr4fucker.no-ip.org:1604

ultr4fucker.no-ip.org:1602

Mutex

DC_MUTEX-3S67JWT

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
wauaoWNzC5fn
install
true
offline_keylogger
true
persistence
true
reg_key
svchost

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:\\Windows\\system32\\MSDCSC\\msdcsc.exe"	svchost.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
1156	attrib.exe
4824	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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	svchost.exe

Executes dropped EXE 2 IoCs

pid	Process
208	svchost.exe
4044	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-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\1434 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\1434.exe"	9fcf12283d2cdcf26403bff7fb401f4a_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\svchost = "C:\\Windows\\system32\\MSDCSC\\msdcsc.exe"	svchost.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\MSDCSC\msdcsc.exe	svchost.exe
File opened for modification	C:\Windows\SysWOW64\MSDCSC\msdcsc.exe	svchost.exe
File opened for modification	C:\Windows\SysWOW64\MSDCSC\	svchost.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1160 set thread context of 208	1160	9fcf12283d2cdcf26403bff7fb401f4a_JaffaCakes118.exe	84

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 8 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	cmd.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	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	9fcf12283d2cdcf26403bff7fb401f4a_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe

Modifies registry class 1 IoCs

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

Suspicious use of AdjustPrivilegeToken 24 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	208	svchost.exe
Token: SeSecurityPrivilege	208	svchost.exe
Token: SeTakeOwnershipPrivilege	208	svchost.exe
Token: SeLoadDriverPrivilege	208	svchost.exe
Token: SeSystemProfilePrivilege	208	svchost.exe
Token: SeSystemtimePrivilege	208	svchost.exe
Token: SeProfSingleProcessPrivilege	208	svchost.exe
Token: SeIncBasePriorityPrivilege	208	svchost.exe
Token: SeCreatePagefilePrivilege	208	svchost.exe
Token: SeBackupPrivilege	208	svchost.exe
Token: SeRestorePrivilege	208	svchost.exe
Token: SeShutdownPrivilege	208	svchost.exe
Token: SeDebugPrivilege	208	svchost.exe
Token: SeSystemEnvironmentPrivilege	208	svchost.exe
Token: SeChangeNotifyPrivilege	208	svchost.exe
Token: SeRemoteShutdownPrivilege	208	svchost.exe
Token: SeUndockPrivilege	208	svchost.exe
Token: SeManageVolumePrivilege	208	svchost.exe
Token: SeImpersonatePrivilege	208	svchost.exe
Token: SeCreateGlobalPrivilege	208	svchost.exe
Token: 33	208	svchost.exe
Token: 34	208	svchost.exe
Token: 35	208	svchost.exe
Token: 36	208	svchost.exe

Suspicious use of WriteProcessMemory 46 IoCs

description	pid	Process	procid_target
PID 1160 wrote to memory of 208	1160	9fcf12283d2cdcf26403bff7fb401f4a_JaffaCakes118.exe	84
PID 1160 wrote to memory of 208	1160	9fcf12283d2cdcf26403bff7fb401f4a_JaffaCakes118.exe	84
PID 1160 wrote to memory of 208	1160	9fcf12283d2cdcf26403bff7fb401f4a_JaffaCakes118.exe	84
PID 1160 wrote to memory of 208	1160	9fcf12283d2cdcf26403bff7fb401f4a_JaffaCakes118.exe	84
PID 1160 wrote to memory of 208	1160	9fcf12283d2cdcf26403bff7fb401f4a_JaffaCakes118.exe	84
PID 1160 wrote to memory of 208	1160	9fcf12283d2cdcf26403bff7fb401f4a_JaffaCakes118.exe	84
PID 1160 wrote to memory of 208	1160	9fcf12283d2cdcf26403bff7fb401f4a_JaffaCakes118.exe	84
PID 1160 wrote to memory of 208	1160	9fcf12283d2cdcf26403bff7fb401f4a_JaffaCakes118.exe	84
PID 1160 wrote to memory of 208	1160	9fcf12283d2cdcf26403bff7fb401f4a_JaffaCakes118.exe	84
PID 1160 wrote to memory of 208	1160	9fcf12283d2cdcf26403bff7fb401f4a_JaffaCakes118.exe	84
PID 1160 wrote to memory of 208	1160	9fcf12283d2cdcf26403bff7fb401f4a_JaffaCakes118.exe	84
PID 1160 wrote to memory of 208	1160	9fcf12283d2cdcf26403bff7fb401f4a_JaffaCakes118.exe	84
PID 1160 wrote to memory of 208	1160	9fcf12283d2cdcf26403bff7fb401f4a_JaffaCakes118.exe	84
PID 1160 wrote to memory of 208	1160	9fcf12283d2cdcf26403bff7fb401f4a_JaffaCakes118.exe	84
PID 208 wrote to memory of 2644	208	svchost.exe	85
PID 208 wrote to memory of 2644	208	svchost.exe	85
PID 208 wrote to memory of 2644	208	svchost.exe	85
PID 208 wrote to memory of 2708	208	svchost.exe	87
PID 208 wrote to memory of 2708	208	svchost.exe	87
PID 208 wrote to memory of 2708	208	svchost.exe	87
PID 208 wrote to memory of 4324	208	svchost.exe	88
PID 208 wrote to memory of 4324	208	svchost.exe	88
PID 208 wrote to memory of 4324	208	svchost.exe	88
PID 208 wrote to memory of 4324	208	svchost.exe	88
PID 208 wrote to memory of 4324	208	svchost.exe	88
PID 208 wrote to memory of 4324	208	svchost.exe	88
PID 208 wrote to memory of 4324	208	svchost.exe	88
PID 208 wrote to memory of 4324	208	svchost.exe	88
PID 208 wrote to memory of 4324	208	svchost.exe	88
PID 208 wrote to memory of 4324	208	svchost.exe	88
PID 208 wrote to memory of 4324	208	svchost.exe	88
PID 208 wrote to memory of 4324	208	svchost.exe	88
PID 208 wrote to memory of 4324	208	svchost.exe	88
PID 208 wrote to memory of 4324	208	svchost.exe	88
PID 208 wrote to memory of 4324	208	svchost.exe	88
PID 208 wrote to memory of 4324	208	svchost.exe	88
PID 208 wrote to memory of 4324	208	svchost.exe	88
PID 2644 wrote to memory of 1156	2644	cmd.exe	90
PID 2644 wrote to memory of 1156	2644	cmd.exe	90
PID 2644 wrote to memory of 1156	2644	cmd.exe	90
PID 2708 wrote to memory of 4824	2708	cmd.exe	91
PID 2708 wrote to memory of 4824	2708	cmd.exe	91
PID 2708 wrote to memory of 4824	2708	cmd.exe	91
PID 208 wrote to memory of 4044	208	svchost.exe	92
PID 208 wrote to memory of 4044	208	svchost.exe	92
PID 208 wrote to memory of 4044	208	svchost.exe	92

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
1156	attrib.exe
4824	attrib.exe

C:\Users\Admin\AppData\Local\Temp\9fcf12283d2cdcf26403bff7fb401f4a_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\9fcf12283d2cdcf26403bff7fb401f4a_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1160
- C:\Users\Admin\AppData\Local\Temp\App\svchost.exe
  C:\Users\Admin\AppData\Local\Temp\\App\svchost.exe
  2⤵
  - Modifies WinLogon for persistence
  - Checks computer location settings
  - Executes dropped EXE
  - Adds Run key to start application
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:208
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\App\svchost.exe" +s +h
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2644
  - - C:\Windows\SysWOW64\attrib.exe
      attrib "C:\Users\Admin\AppData\Local\Temp\App\svchost.exe" +s +h
      4⤵
      Sets file to hidden
      System Location Discovery: System Language Discovery
      Views/modifies file attributes
      PID:1156
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\App" +s +h
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2708
  - - C:\Windows\SysWOW64\attrib.exe
      attrib "C:\Users\Admin\AppData\Local\Temp\App" +s +h
      4⤵
      Sets file to hidden
      System Location Discovery: System Language Discovery
      Views/modifies file attributes
      PID:4824
- - C:\Windows\SysWOW64\notepad.exe
    notepad
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4324
- - C:\Windows\SysWOW64\MSDCSC\msdcsc.exe
    "C:\Windows\system32\MSDCSC\msdcsc.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:4044

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\App\svchost.exe

Filesize
1.1MB

MD5
d881de17aa8f2e2c08cbb7b265f928f9

SHA1
08936aebc87decf0af6e8eada191062b5e65ac2a

SHA256
b3a37093609f9a20ad60b85a9fa9de2ba674cba9b5bd687729440c70ba619ca0

SHA512
5f23bfb1b8740247b36ed0ab741738c7d4c949736129e767213e321607d1ccd3e3a8428e4ba44bd28a275b5e3f6206285b1a522514b7ef7ea5e698d90a713d34

Download Submit
memory/208-15-0x00000000025D0000-0x00000000025D1000-memory.dmp

Filesize
4KB

Download
memory/208-14-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/208-7-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/208-79-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/208-11-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/208-12-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/1160-18-0x0000000001550000-0x0000000001560000-memory.dmp

Filesize
64KB

Download
memory/1160-0-0x0000000075382000-0x0000000075383000-memory.dmp

Filesize
4KB

Download
memory/1160-2-0x0000000075380000-0x0000000075931000-memory.dmp

Filesize
5.7MB

Download
memory/1160-19-0x0000000001550000-0x0000000001560000-memory.dmp

Filesize
64KB

Download
memory/1160-1-0x0000000075380000-0x0000000075931000-memory.dmp

Filesize
5.7MB

Download
memory/1160-82-0x0000000075382000-0x0000000075383000-memory.dmp

Filesize
4KB

Download
memory/1160-83-0x0000000075380000-0x0000000075931000-memory.dmp

Filesize
5.7MB

Download
memory/1160-84-0x0000000001550000-0x0000000001560000-memory.dmp

Filesize
64KB

Download
memory/4324-20-0x00000000006D0000-0x00000000006D1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads