darkcomet | 52e99ceab23db35b2202ec02cb720b84b437b2c32fc4ba379845c2030a3acacb

Analysis

max time kernel
151s
max time network
165s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
19/10/2022, 22:53

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General

Target
52e99ceab23db35b2202ec02cb720b84b437b2c32fc4ba379845c2030a3acacb.exe
Size 1.3MB
Sample221019-2t8qqsbhd3
SHA256 52e99ceab23db35b2202ec02cb720b84b437b2c32fc4ba379845c2030a3acacb
MD5 914affb249a0eea125548788c6bfeb5d
SHA1 7036459895f5a836c62d298f46a714bd43306aec
SHA512 f6cc8bc79dd09ba8c847aa95d603d97b8405681f6e8079316ef15e4cb49d026c3cf2c42ef5ce51afa52b30e442070ff30374c1ceacf3f79fa542f200dcdc2944
SSDEEP 12288:do81UpsIiHBEXt8CQciRcLl6DD39uQ5OsrekFd9GdBQxTSWACuPJQhD6Nj7Hhhmv:sZcRAXDBfatJFN
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

darkcomet persistence rat trojan

Malware Config

Signatures

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

Executes dropped EXE 1 IoCs

pid	Process
4580	explorer.exe

Checks BIOS information in registry 2 TTPs 1 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\FileName.exe = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\FileName.exe\""	52e99ceab23db35b2202ec02cb720b84b437b2c32fc4ba379845c2030a3acacb.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5012 set thread context of 4580	5012	52e99ceab23db35b2202ec02cb720b84b437b2c32fc4ba379845c2030a3acacb.exe	80

Checks processor information in registry 2 TTPs 4 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

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

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

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

Suspicious use of AdjustPrivilegeToken 25 IoCs

description	pid	Process
Token: SeDebugPrivilege	5012	52e99ceab23db35b2202ec02cb720b84b437b2c32fc4ba379845c2030a3acacb.exe
Token: SeIncreaseQuotaPrivilege	4580	explorer.exe
Token: SeSecurityPrivilege	4580	explorer.exe
Token: SeTakeOwnershipPrivilege	4580	explorer.exe
Token: SeLoadDriverPrivilege	4580	explorer.exe
Token: SeSystemProfilePrivilege	4580	explorer.exe
Token: SeSystemtimePrivilege	4580	explorer.exe
Token: SeProfSingleProcessPrivilege	4580	explorer.exe
Token: SeIncBasePriorityPrivilege	4580	explorer.exe
Token: SeCreatePagefilePrivilege	4580	explorer.exe
Token: SeBackupPrivilege	4580	explorer.exe
Token: SeRestorePrivilege	4580	explorer.exe
Token: SeShutdownPrivilege	4580	explorer.exe
Token: SeDebugPrivilege	4580	explorer.exe
Token: SeSystemEnvironmentPrivilege	4580	explorer.exe
Token: SeChangeNotifyPrivilege	4580	explorer.exe
Token: SeRemoteShutdownPrivilege	4580	explorer.exe
Token: SeUndockPrivilege	4580	explorer.exe
Token: SeManageVolumePrivilege	4580	explorer.exe
Token: SeImpersonatePrivilege	4580	explorer.exe
Token: SeCreateGlobalPrivilege	4580	explorer.exe
Token: 33	4580	explorer.exe
Token: 34	4580	explorer.exe
Token: 35	4580	explorer.exe
Token: 36	4580	explorer.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4580	explorer.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 5012 wrote to memory of 4580	5012	52e99ceab23db35b2202ec02cb720b84b437b2c32fc4ba379845c2030a3acacb.exe	80
PID 5012 wrote to memory of 4580	5012	52e99ceab23db35b2202ec02cb720b84b437b2c32fc4ba379845c2030a3acacb.exe	80
PID 5012 wrote to memory of 4580	5012	52e99ceab23db35b2202ec02cb720b84b437b2c32fc4ba379845c2030a3acacb.exe	80
PID 5012 wrote to memory of 4580	5012	52e99ceab23db35b2202ec02cb720b84b437b2c32fc4ba379845c2030a3acacb.exe	80
PID 5012 wrote to memory of 4580	5012	52e99ceab23db35b2202ec02cb720b84b437b2c32fc4ba379845c2030a3acacb.exe	80
PID 5012 wrote to memory of 4580	5012	52e99ceab23db35b2202ec02cb720b84b437b2c32fc4ba379845c2030a3acacb.exe	80
PID 5012 wrote to memory of 4580	5012	52e99ceab23db35b2202ec02cb720b84b437b2c32fc4ba379845c2030a3acacb.exe	80
PID 5012 wrote to memory of 4580	5012	52e99ceab23db35b2202ec02cb720b84b437b2c32fc4ba379845c2030a3acacb.exe	80
PID 5012 wrote to memory of 4580	5012	52e99ceab23db35b2202ec02cb720b84b437b2c32fc4ba379845c2030a3acacb.exe	80
PID 5012 wrote to memory of 4580	5012	52e99ceab23db35b2202ec02cb720b84b437b2c32fc4ba379845c2030a3acacb.exe	80
PID 5012 wrote to memory of 4580	5012	52e99ceab23db35b2202ec02cb720b84b437b2c32fc4ba379845c2030a3acacb.exe	80
PID 5012 wrote to memory of 4580	5012	52e99ceab23db35b2202ec02cb720b84b437b2c32fc4ba379845c2030a3acacb.exe	80
PID 5012 wrote to memory of 4580	5012	52e99ceab23db35b2202ec02cb720b84b437b2c32fc4ba379845c2030a3acacb.exe	80
PID 5012 wrote to memory of 4580	5012	52e99ceab23db35b2202ec02cb720b84b437b2c32fc4ba379845c2030a3acacb.exe	80

C:\Users\Admin\AppData\Local\Temp\52e99ceab23db35b2202ec02cb720b84b437b2c32fc4ba379845c2030a3acacb.exe
"C:\Users\Admin\AppData\Local\Temp\52e99ceab23db35b2202ec02cb720b84b437b2c32fc4ba379845c2030a3acacb.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5012
- C:\Users\Admin\AppData\Local\Temp\explorer.exe
  C:\Users\Admin\AppData\Local\Temp\explorer.exe
  2⤵
  - Executes dropped EXE
  - Checks BIOS information in registry
  - Checks processor information in registry
  - Enumerates system info in registry
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:4580

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

explorer.exe

Path C:\Users\Admin\AppData\Local\Temp\explorer.exe
Size 13KB
SHA256 3d96f25b5c2729f8c6a7b65f44bc350c770fc3eecea7e055aec974ca135ea585
MD5 4db8dce311dd754681729a7bfbd27c74
SHA1 fda9dd30c98d33f32b5be39ff957e224457c430d
SHA512 6da3f38ca7825fba05b974f4f023271bdfcadccffc3359b836779d98a0e97c4ecb11dbcd43f67c3c6c1190c44a559dae11170c172c90b44201780a0831f367fb
SSDEEP 384:YYYYYYYYYYYYYYYYYYRP6QsH3WHXwQMnfm:4QIaABf
MD5 SHA1 SHA512 SSDEEP

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explorer.exe

Path C:\Users\Admin\AppData\Local\Temp\explorer.exe
Size 13KB
SHA256 3d96f25b5c2729f8c6a7b65f44bc350c770fc3eecea7e055aec974ca135ea585
MD5 4db8dce311dd754681729a7bfbd27c74
SHA1 fda9dd30c98d33f32b5be39ff957e224457c430d
SHA512 6da3f38ca7825fba05b974f4f023271bdfcadccffc3359b836779d98a0e97c4ecb11dbcd43f67c3c6c1190c44a559dae11170c172c90b44201780a0831f367fb
SSDEEP 384:YYYYYYYYYYYYYYYYYYRP6QsH3WHXwQMnfm:4QIaABf
MD5 SHA1 SHA512 SSDEEP

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memory/4580-135-0x0000000000400000-0x00000000004C0000-memory.dmp

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memory/4580-138-0x0000000000400000-0x00000000004C0000-memory.dmp

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memory/4580-139-0x0000000000400000-0x00000000004C0000-memory.dmp

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memory/4580-141-0x0000000000400000-0x00000000004C0000-memory.dmp

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memory/4580-143-0x0000000000400000-0x00000000004C0000-memory.dmp

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memory/4580-144-0x0000000000400000-0x00000000004C0000-memory.dmp

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memory/5012-133-0x0000000074AB0000-0x0000000075061000-memory.dmp

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memory/5012-142-0x0000000074AB0000-0x0000000075061000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads