darkcomet | ace79191841e2cef9a1b173291a601aca640efa1c973509b05947361ac963ba9

General

Target

BootstrapperV1.24.exe
Size

658KB
MD5

3ee0372d64df6ea69e4b0fb4fce81897
SHA1

b9a7f1fea7171003b0aa657f4dd850583fd07cf0
SHA256

ace79191841e2cef9a1b173291a601aca640efa1c973509b05947361ac963ba9
SHA512

992d8fcca00089d45f1a196193911e68454c45ce9cae1e899cb0f7f00f32a325d2879f28d57585180e52107eeeea5490d20c800e6c7621f0b712851dac79c6a4
SSDEEP

12288:y9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hg:eZ1xuVVjfFoynPaVBUR8f+kN10EBy

Score

10^/10

darkcomet guest16 discovery evasion rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

onsj8tw.localto.net:1604

onsj8tw.localto.net:4441

Mutex

DC_MUTEX-X7H0HND

Attributes

gencode
3oxLrHdzjqV0
install
false
offline_keylogger
true
persistence
false

Signatures

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

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
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0"	BootstrapperV1.24.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "0"	BootstrapperV1.24.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	BootstrapperV1.24.exe

Modifies security service 2 TTPs 1 IoCs

evasion

Modify Registry

T1112

Windows Service

T1543.003

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\wscsvc\Start = "4"	BootstrapperV1.24.exe

Windows security bypass 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"	BootstrapperV1.24.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	BootstrapperV1.24.exe

Disables RegEdit via registry modification 1 IoCs

evasion

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-3761892313-3378554128-2287991803-1000\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	BootstrapperV1.24.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
804	attrib.exe
4020	attrib.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"	BootstrapperV1.24.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	BootstrapperV1.24.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 5 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	BootstrapperV1.24.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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3344	BootstrapperV1.24.exe

Suspicious use of AdjustPrivilegeToken 24 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	3344	BootstrapperV1.24.exe
Token: SeSecurityPrivilege	3344	BootstrapperV1.24.exe
Token: SeTakeOwnershipPrivilege	3344	BootstrapperV1.24.exe
Token: SeLoadDriverPrivilege	3344	BootstrapperV1.24.exe
Token: SeSystemProfilePrivilege	3344	BootstrapperV1.24.exe
Token: SeSystemtimePrivilege	3344	BootstrapperV1.24.exe
Token: SeProfSingleProcessPrivilege	3344	BootstrapperV1.24.exe
Token: SeIncBasePriorityPrivilege	3344	BootstrapperV1.24.exe
Token: SeCreatePagefilePrivilege	3344	BootstrapperV1.24.exe
Token: SeBackupPrivilege	3344	BootstrapperV1.24.exe
Token: SeRestorePrivilege	3344	BootstrapperV1.24.exe
Token: SeShutdownPrivilege	3344	BootstrapperV1.24.exe
Token: SeDebugPrivilege	3344	BootstrapperV1.24.exe
Token: SeSystemEnvironmentPrivilege	3344	BootstrapperV1.24.exe
Token: SeChangeNotifyPrivilege	3344	BootstrapperV1.24.exe
Token: SeRemoteShutdownPrivilege	3344	BootstrapperV1.24.exe
Token: SeUndockPrivilege	3344	BootstrapperV1.24.exe
Token: SeManageVolumePrivilege	3344	BootstrapperV1.24.exe
Token: SeImpersonatePrivilege	3344	BootstrapperV1.24.exe
Token: SeCreateGlobalPrivilege	3344	BootstrapperV1.24.exe
Token: 33	3344	BootstrapperV1.24.exe
Token: 34	3344	BootstrapperV1.24.exe
Token: 35	3344	BootstrapperV1.24.exe
Token: 36	3344	BootstrapperV1.24.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3344	BootstrapperV1.24.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 3344 wrote to memory of 2840	3344	BootstrapperV1.24.exe	78
PID 3344 wrote to memory of 2840	3344	BootstrapperV1.24.exe	78
PID 3344 wrote to memory of 2840	3344	BootstrapperV1.24.exe	78
PID 3344 wrote to memory of 2908	3344	BootstrapperV1.24.exe	80
PID 3344 wrote to memory of 2908	3344	BootstrapperV1.24.exe	80
PID 3344 wrote to memory of 2908	3344	BootstrapperV1.24.exe	80
PID 2840 wrote to memory of 804	2840	cmd.exe	82
PID 2840 wrote to memory of 804	2840	cmd.exe	82
PID 2840 wrote to memory of 804	2840	cmd.exe	82
PID 2908 wrote to memory of 4020	2908	cmd.exe	83
PID 2908 wrote to memory of 4020	2908	cmd.exe	83
PID 2908 wrote to memory of 4020	2908	cmd.exe	83

System policy modification 1 TTPs 3 IoCs

evasion

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion	BootstrapperV1.24.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion\Explorern	BootstrapperV1.24.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion\Explorern\NoControlPanel = "1"	BootstrapperV1.24.exe

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
804	attrib.exe
4020	attrib.exe

C:\Users\Admin\AppData\Local\Temp\BootstrapperV1.24.exe
"C:\Users\Admin\AppData\Local\Temp\BootstrapperV1.24.exe"
1⤵
- Modifies firewall policy service
- Modifies security service
- Windows security bypass
- Disables RegEdit via registry modification
- Windows security modification
- System Location Discovery: System Language Discovery
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
- System policy modification
PID:3344
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\BootstrapperV1.24.exe" +s +h
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2840
- - C:\Windows\SysWOW64\attrib.exe
    attrib "C:\Users\Admin\AppData\Local\Temp\BootstrapperV1.24.exe" +s +h
    3⤵
    - Sets file to hidden
    - System Location Discovery: System Language Discovery
    - Views/modifies file attributes
    PID:804
- 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:2908
- - 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:4020

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Privilege Escalation

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Defense Evasion

Hide Artifacts

2

T1564

Hidden Files and Directories

2

T1564.001

Impair Defenses

3

T1562

Disable or Modify System Firewall

1

T1562.004

Disable or Modify Tools

Modify Registry

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/3344-0-0x0000000002370000-0x0000000002371000-memory.dmp

Filesize
4KB

Download
memory/3344-1-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/3344-2-0x0000000002370000-0x0000000002371000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads