darkcomet | f44dad3c2f770d7ffd8234e857184d196d2251e28375c6f8e5bb499dd8fffe1b

Analysis

max time kernel
150s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
17-10-2024 02:34

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General

Target

505e0479271963403c89d94dc8d9297e_JaffaCakes118.exe
Size

773KB
MD5

505e0479271963403c89d94dc8d9297e
SHA1

0281b7e8b7bae68774a97569bcb3ba747d3c7f8e
SHA256

f44dad3c2f770d7ffd8234e857184d196d2251e28375c6f8e5bb499dd8fffe1b
SHA512

e0687467efd8924e665d4d63b478054b441cd40d2e206f9ecdd16d518bfd24d3c885e54554c856369704eac9c12ce2c08340b6fdbe2945db734a87f4c64abc2c
SSDEEP

12288:wYU38tWvCBtmerOuCvLmWzZsSeOqbEwFsxikVPdJV717Uji4NHv4UHolx7cjOnqH:vRrOuOmW9snobHVPdc/x4UIlgOnq8acg

Score

10^/10

darkcomet discovery evasion rat trojan

Malware Config

Signatures

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

Disables RegEdit via registry modification 2 IoCs

evasion

Processes:

Crypted.exeexplorer.exe

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	Crypted.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	explorer.exe

Disables Task Manager via registry modification
evasion

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

Crypted.exeexplorer.exe

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	Crypted.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	explorer.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:

505e0479271963403c89d94dc8d9297e_JaffaCakes118.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	505e0479271963403c89d94dc8d9297e_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

Processes:

Crypted.exe

pid	Process
2540	Crypted.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

Crypted.exe

description	pid	Process	procid_target
PID 2540 set thread context of 452	2540	Crypted.exe	93

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 2 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

Processes:

Crypted.exeexplorer.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Crypted.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer.exe

Checks processor information in registry 2 TTPs 8 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

explorer.exeCrypted.exe

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	explorer.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	Crypted.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	Crypted.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	Crypted.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	Crypted.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	explorer.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	explorer.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	explorer.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

Crypted.exeexplorer.exe

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	Crypted.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	explorer.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

explorer.exe

pid	Process
452	explorer.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

Processes:

Crypted.exeexplorer.exe

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2540	Crypted.exe
Token: SeSecurityPrivilege	2540	Crypted.exe
Token: SeTakeOwnershipPrivilege	2540	Crypted.exe
Token: SeLoadDriverPrivilege	2540	Crypted.exe
Token: SeSystemProfilePrivilege	2540	Crypted.exe
Token: SeSystemtimePrivilege	2540	Crypted.exe
Token: SeProfSingleProcessPrivilege	2540	Crypted.exe
Token: SeIncBasePriorityPrivilege	2540	Crypted.exe
Token: SeCreatePagefilePrivilege	2540	Crypted.exe
Token: SeBackupPrivilege	2540	Crypted.exe
Token: SeRestorePrivilege	2540	Crypted.exe
Token: SeShutdownPrivilege	2540	Crypted.exe
Token: SeDebugPrivilege	2540	Crypted.exe
Token: SeSystemEnvironmentPrivilege	2540	Crypted.exe
Token: SeChangeNotifyPrivilege	2540	Crypted.exe
Token: SeRemoteShutdownPrivilege	2540	Crypted.exe
Token: SeUndockPrivilege	2540	Crypted.exe
Token: SeManageVolumePrivilege	2540	Crypted.exe
Token: SeImpersonatePrivilege	2540	Crypted.exe
Token: SeCreateGlobalPrivilege	2540	Crypted.exe
Token: 33	2540	Crypted.exe
Token: 34	2540	Crypted.exe
Token: 35	2540	Crypted.exe
Token: 36	2540	Crypted.exe
Token: SeIncreaseQuotaPrivilege	452	explorer.exe
Token: SeSecurityPrivilege	452	explorer.exe
Token: SeTakeOwnershipPrivilege	452	explorer.exe
Token: SeLoadDriverPrivilege	452	explorer.exe
Token: SeSystemProfilePrivilege	452	explorer.exe
Token: SeSystemtimePrivilege	452	explorer.exe
Token: SeProfSingleProcessPrivilege	452	explorer.exe
Token: SeIncBasePriorityPrivilege	452	explorer.exe
Token: SeCreatePagefilePrivilege	452	explorer.exe
Token: SeBackupPrivilege	452	explorer.exe
Token: SeRestorePrivilege	452	explorer.exe
Token: SeShutdownPrivilege	452	explorer.exe
Token: SeDebugPrivilege	452	explorer.exe
Token: SeSystemEnvironmentPrivilege	452	explorer.exe
Token: SeChangeNotifyPrivilege	452	explorer.exe
Token: SeRemoteShutdownPrivilege	452	explorer.exe
Token: SeUndockPrivilege	452	explorer.exe
Token: SeManageVolumePrivilege	452	explorer.exe
Token: SeImpersonatePrivilege	452	explorer.exe
Token: SeCreateGlobalPrivilege	452	explorer.exe
Token: 33	452	explorer.exe
Token: 34	452	explorer.exe
Token: 35	452	explorer.exe
Token: 36	452	explorer.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

505e0479271963403c89d94dc8d9297e_JaffaCakes118.exeCrypted.exe

description	pid	Process	procid_target
PID 2896 wrote to memory of 2540	2896	505e0479271963403c89d94dc8d9297e_JaffaCakes118.exe	86
PID 2896 wrote to memory of 2540	2896	505e0479271963403c89d94dc8d9297e_JaffaCakes118.exe	86
PID 2896 wrote to memory of 2540	2896	505e0479271963403c89d94dc8d9297e_JaffaCakes118.exe	86
PID 2540 wrote to memory of 452	2540	Crypted.exe	93
PID 2540 wrote to memory of 452	2540	Crypted.exe	93
PID 2540 wrote to memory of 452	2540	Crypted.exe	93
PID 2540 wrote to memory of 452	2540	Crypted.exe	93
PID 2540 wrote to memory of 452	2540	Crypted.exe	93

C:\Users\Admin\AppData\Local\Temp\505e0479271963403c89d94dc8d9297e_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\505e0479271963403c89d94dc8d9297e_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2896
- C:\Users\Admin\AppData\Local\Temp\Crypted.exe
  "C:\Users\Admin\AppData\Local\Temp\Crypted.exe"
  2⤵
  - Disables RegEdit via registry modification
  - Checks BIOS information in registry
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Enumerates system info in registry
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2540
- - C:\Windows\SysWOW64\explorer.exe
    "C:\Windows\SysWOW64\explorer.exe"
    3⤵
    - Disables RegEdit via registry modification
    - Checks BIOS information in registry
    - System Location Discovery: System Language Discovery
    - Checks processor information in registry
    - Enumerates system info in registry
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of AdjustPrivilegeToken
    PID:452

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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\Crypted.exe

Filesize
658KB

MD5
d06bab06b90d6834fa3ca20f7721bce3

SHA1
aabe13f7b43fa5a864dbeda293eddb080ab0dc3e

SHA256
54be714f25b54574940c8f1f561fba8f99d54e43f944bc642a3c276c42dade03

SHA512
12d21ecb86b839b8d606c0143a03bed8789b5fb3addc5e55f9956edfe64d0fb3dc4469fdbd957fa37ea1d4e9fe5ede7c6f4241e8eeb2fffb95aacd88a5984703

Download Submit
memory/452-30-0x0000000013140000-0x00000000131F6000-memory.dmp

Filesize
728KB

Download
memory/452-22-0x0000000013140000-0x00000000131F6000-memory.dmp

Filesize
728KB

Download
memory/452-23-0x0000000013140000-0x00000000131F6000-memory.dmp

Filesize
728KB

Download
memory/452-26-0x0000000013140000-0x00000000131F6000-memory.dmp

Filesize
728KB

Download
memory/452-28-0x0000000013140000-0x00000000131F6000-memory.dmp

Filesize
728KB

Download
memory/452-29-0x0000000013140000-0x00000000131F6000-memory.dmp

Filesize
728KB

Download
memory/452-27-0x0000000013140000-0x00000000131F6000-memory.dmp

Filesize
728KB

Download
memory/452-24-0x0000000013140000-0x00000000131F6000-memory.dmp

Filesize
728KB

Download
memory/2540-25-0x0000000013140000-0x00000000131F6000-memory.dmp

Filesize
728KB

Download
memory/2540-21-0x0000000002240000-0x0000000002241000-memory.dmp

Filesize
4KB

Download
memory/2896-5-0x00007FF9431D0000-0x00007FF943B71000-memory.dmp

Filesize
9.6MB

Download
memory/2896-20-0x00007FF9431D0000-0x00007FF943B71000-memory.dmp

Filesize
9.6MB

Download
memory/2896-10-0x00007FF9431D0000-0x00007FF943B71000-memory.dmp

Filesize
9.6MB

Download
memory/2896-9-0x00007FF9431D0000-0x00007FF943B71000-memory.dmp

Filesize
9.6MB

Download
memory/2896-8-0x00007FF9431D0000-0x00007FF943B71000-memory.dmp

Filesize
9.6MB

Download
memory/2896-7-0x000000001C280000-0x000000001C2CC000-memory.dmp

Filesize
304KB

Download
memory/2896-6-0x0000000000970000-0x0000000000978000-memory.dmp

Filesize
32KB

Download
memory/2896-0-0x00007FF943485000-0x00007FF943486000-memory.dmp

Filesize
4KB

Download
memory/2896-4-0x000000001BFF0000-0x000000001C08C000-memory.dmp

Filesize
624KB

Download
memory/2896-3-0x000000001B680000-0x000000001BB4E000-memory.dmp

Filesize
4.8MB

Download
memory/2896-2-0x00007FF9431D0000-0x00007FF943B71000-memory.dmp

Filesize
9.6MB

Download
memory/2896-1-0x000000001B0C0000-0x000000001B166000-memory.dmp

Filesize
664KB

Download