darkcomet | c41d7f11ce201a902754dcb8107da217d3f54e3bcd9fe3feb644c6e3aed7dc10

Analysis

max time kernel
150s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
28/10/2024, 15:11

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General

Target

7a3078d2b2dbbca4258107bf1f1d9b21_JaffaCakes118.exe
Size

1.2MB
MD5

7a3078d2b2dbbca4258107bf1f1d9b21
SHA1

fcbf809ff0a4e4e0ce6feca34d99db7b60b5dd77
SHA256

c41d7f11ce201a902754dcb8107da217d3f54e3bcd9fe3feb644c6e3aed7dc10
SHA512

7c4622e39f8d602b01c379d08e9303c3a8ffe4745db83c90a1d80ba3b1c7a8b6ff0c9b60f0e9ea52e3c375e0cbb9ff4bc4b0c315e023429bf950c1ca766ba198
SSDEEP

24576:GfXOr2Z1xuVVjfFoynPaVBUR8f+kN10EBjiI8Y:GftQDgok30KiI7

Score

10^/10

darkcomet guest16 discovery evasion rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

tomhack.no-ip.org:1604

Mutex

DC_MUTEX-HKTU7US

Attributes

gencode
3cu7rNKCPLaR
install
false
offline_keylogger
true
password
letmein
persistence
false

Signatures

Darkcomet
DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.
trojan rat darkcomet
Darkcomet family
darkcomet

Modifies firewall policy service 3 TTPs 6 IoCs

evasion

Modify Registry

T1112

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "0"	iexplore.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	VIR.EXE
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0"	VIR.EXE
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "0"	VIR.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

Modifies security service 2 TTPs 2 IoCs

evasion

Modify Registry

T1112

Windows Service

T1543.003

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\wscsvc\Start = "4"	VIR.EXE
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\wscsvc\Start = "4"	iexplore.exe

Windows security bypass 2 TTPs 4 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	VIR.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	VIR.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	iexplore.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	iexplore.exe

Disables RegEdit via registry modification 2 IoCs

evasion

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	VIR.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	iexplore.exe

Disables Task Manager via registry modification
evasion

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
2032	attrib.exe
5072	attrib.exe

Checks computer location settings 2 TTPs 2 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	7a3078d2b2dbbca4258107bf1f1d9b21_JaffaCakes118.exe
Key value queried	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	VIR.EXE

Executes dropped EXE 1 IoCs

pid	Process
4460	VIR.EXE

Windows security modification 2 TTPs 2 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	VIR.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	VIR.EXE

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4460 set thread context of 1532	4460	VIR.EXE	90

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	VIR.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	iexplore.exe
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	notepad.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7a3078d2b2dbbca4258107bf1f1d9b21_JaffaCakes118.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1532	iexplore.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	4460	VIR.EXE
Token: SeSecurityPrivilege	4460	VIR.EXE
Token: SeTakeOwnershipPrivilege	4460	VIR.EXE
Token: SeLoadDriverPrivilege	4460	VIR.EXE
Token: SeSystemProfilePrivilege	4460	VIR.EXE
Token: SeSystemtimePrivilege	4460	VIR.EXE
Token: SeProfSingleProcessPrivilege	4460	VIR.EXE
Token: SeIncBasePriorityPrivilege	4460	VIR.EXE
Token: SeCreatePagefilePrivilege	4460	VIR.EXE
Token: SeBackupPrivilege	4460	VIR.EXE
Token: SeRestorePrivilege	4460	VIR.EXE
Token: SeShutdownPrivilege	4460	VIR.EXE
Token: SeDebugPrivilege	4460	VIR.EXE
Token: SeSystemEnvironmentPrivilege	4460	VIR.EXE
Token: SeChangeNotifyPrivilege	4460	VIR.EXE
Token: SeRemoteShutdownPrivilege	4460	VIR.EXE
Token: SeUndockPrivilege	4460	VIR.EXE
Token: SeManageVolumePrivilege	4460	VIR.EXE
Token: SeImpersonatePrivilege	4460	VIR.EXE
Token: SeCreateGlobalPrivilege	4460	VIR.EXE
Token: 33	4460	VIR.EXE
Token: 34	4460	VIR.EXE
Token: 35	4460	VIR.EXE
Token: 36	4460	VIR.EXE
Token: SeIncreaseQuotaPrivilege	1532	iexplore.exe
Token: SeSecurityPrivilege	1532	iexplore.exe
Token: SeTakeOwnershipPrivilege	1532	iexplore.exe
Token: SeLoadDriverPrivilege	1532	iexplore.exe
Token: SeSystemProfilePrivilege	1532	iexplore.exe
Token: SeSystemtimePrivilege	1532	iexplore.exe
Token: SeProfSingleProcessPrivilege	1532	iexplore.exe
Token: SeIncBasePriorityPrivilege	1532	iexplore.exe
Token: SeCreatePagefilePrivilege	1532	iexplore.exe
Token: SeBackupPrivilege	1532	iexplore.exe
Token: SeRestorePrivilege	1532	iexplore.exe
Token: SeShutdownPrivilege	1532	iexplore.exe
Token: SeDebugPrivilege	1532	iexplore.exe
Token: SeSystemEnvironmentPrivilege	1532	iexplore.exe
Token: SeChangeNotifyPrivilege	1532	iexplore.exe
Token: SeRemoteShutdownPrivilege	1532	iexplore.exe
Token: SeUndockPrivilege	1532	iexplore.exe
Token: SeManageVolumePrivilege	1532	iexplore.exe
Token: SeImpersonatePrivilege	1532	iexplore.exe
Token: SeCreateGlobalPrivilege	1532	iexplore.exe
Token: 33	1532	iexplore.exe
Token: 34	1532	iexplore.exe
Token: 35	1532	iexplore.exe
Token: 36	1532	iexplore.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1532	iexplore.exe

Suspicious use of WriteProcessMemory 42 IoCs

description	pid	Process	procid_target
PID 3376 wrote to memory of 4460	3376	7a3078d2b2dbbca4258107bf1f1d9b21_JaffaCakes118.exe	85
PID 3376 wrote to memory of 4460	3376	7a3078d2b2dbbca4258107bf1f1d9b21_JaffaCakes118.exe	85
PID 3376 wrote to memory of 4460	3376	7a3078d2b2dbbca4258107bf1f1d9b21_JaffaCakes118.exe	85
PID 4460 wrote to memory of 424	4460	VIR.EXE	87
PID 4460 wrote to memory of 424	4460	VIR.EXE	87
PID 4460 wrote to memory of 424	4460	VIR.EXE	87
PID 4460 wrote to memory of 4184	4460	VIR.EXE	89
PID 4460 wrote to memory of 4184	4460	VIR.EXE	89
PID 4460 wrote to memory of 4184	4460	VIR.EXE	89
PID 4460 wrote to memory of 1532	4460	VIR.EXE	90
PID 4460 wrote to memory of 1532	4460	VIR.EXE	90
PID 4460 wrote to memory of 1532	4460	VIR.EXE	90
PID 4460 wrote to memory of 1532	4460	VIR.EXE	90
PID 4460 wrote to memory of 1532	4460	VIR.EXE	90
PID 424 wrote to memory of 5072	424	cmd.exe	93
PID 424 wrote to memory of 5072	424	cmd.exe	93
PID 424 wrote to memory of 5072	424	cmd.exe	93
PID 1532 wrote to memory of 3020	1532	iexplore.exe	92
PID 1532 wrote to memory of 3020	1532	iexplore.exe	92
PID 1532 wrote to memory of 3020	1532	iexplore.exe	92
PID 1532 wrote to memory of 3020	1532	iexplore.exe	92
PID 1532 wrote to memory of 3020	1532	iexplore.exe	92
PID 1532 wrote to memory of 3020	1532	iexplore.exe	92
PID 1532 wrote to memory of 3020	1532	iexplore.exe	92
PID 1532 wrote to memory of 3020	1532	iexplore.exe	92
PID 1532 wrote to memory of 3020	1532	iexplore.exe	92
PID 1532 wrote to memory of 3020	1532	iexplore.exe	92
PID 1532 wrote to memory of 3020	1532	iexplore.exe	92
PID 1532 wrote to memory of 3020	1532	iexplore.exe	92
PID 1532 wrote to memory of 3020	1532	iexplore.exe	92
PID 1532 wrote to memory of 3020	1532	iexplore.exe	92
PID 1532 wrote to memory of 3020	1532	iexplore.exe	92
PID 1532 wrote to memory of 3020	1532	iexplore.exe	92
PID 1532 wrote to memory of 3020	1532	iexplore.exe	92
PID 1532 wrote to memory of 3020	1532	iexplore.exe	92
PID 1532 wrote to memory of 3020	1532	iexplore.exe	92
PID 1532 wrote to memory of 3020	1532	iexplore.exe	92
PID 1532 wrote to memory of 3020	1532	iexplore.exe	92
PID 1532 wrote to memory of 3020	1532	iexplore.exe	92
PID 4184 wrote to memory of 2032	4184	cmd.exe	94
PID 4184 wrote to memory of 2032	4184	cmd.exe	94
PID 4184 wrote to memory of 2032	4184	cmd.exe	94

System policy modification 1 TTPs 3 IoCs

evasion

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion	VIR.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion\Explorern	VIR.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion\Explorern\NoControlPanel = "1"	VIR.EXE

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
5072	attrib.exe
2032	attrib.exe

C:\Users\Admin\AppData\Local\Temp\7a3078d2b2dbbca4258107bf1f1d9b21_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\7a3078d2b2dbbca4258107bf1f1d9b21_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3376
- C:\Users\Admin\AppData\Local\Temp\VIR.EXE
  "C:\Users\Admin\AppData\Local\Temp\VIR.EXE"
  2⤵
  - Modifies firewall policy service
  - Modifies security service
  - Windows security bypass
  - Disables RegEdit via registry modification
  - Checks computer location settings
  - Executes dropped EXE
  - Windows security modification
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  - System policy modification
  PID:4460
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\VIR.EXE" +s +h
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:424
  - - C:\Windows\SysWOW64\attrib.exe
      attrib "C:\Users\Admin\AppData\Local\Temp\VIR.EXE" +s +h
      4⤵
      Sets file to hidden
      System Location Discovery: System Language Discovery
      Views/modifies file attributes
      PID:5072
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4184
  - - C:\Windows\SysWOW64\attrib.exe
      attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
      4⤵
      Sets file to hidden
      System Location Discovery: System Language Discovery
      Views/modifies file attributes
      PID:2032
- - C:\Program Files (x86)\Internet Explorer\iexplore.exe
    "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
    3⤵
    - Modifies firewall policy service
    - Modifies security service
    - Windows security bypass
    - Disables RegEdit via registry modification
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:1532
  - - C:\Windows\SysWOW64\notepad.exe
      notepad
      4⤵
      System Location Discovery: System Language Discovery
      PID:3020

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Disable or Modify Tools

T1562.001

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\VIR.EXE

Filesize
658KB

MD5
eac458d33cbfceb1eab67f8a1b7443c8

SHA1
cee408e330283f2c2c8039da252516632cc50e67

SHA256
d54d3152e946fb4392eb9d6e483709af7e218e08c1f7b385e2791676109c657b

SHA512
957e794e9ae313354dee273504acd646245eeacf31b41e556933e4116cfb10315a14efbd75a44a835f3e1b76834364caec74c4501996df1021fe2c626c7190ee

Download Submit
memory/1532-13-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/3020-15-0x0000000000980000-0x0000000000981000-memory.dmp

Filesize
4KB

Download
memory/4460-12-0x00000000006D0000-0x00000000006D1000-memory.dmp

Filesize
4KB

Download
memory/4460-14-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads