darkcomet | e183e9fadca4fb94ecca6406d94af72c20293eb3ede73ed1b9266403bef2e482

Analysis

max time kernel
194s
max time network
216s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
01-12-2022 16:41

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General

Target

e183e9fadca4fb94ecca6406d94af72c20293eb3ede73ed1b9266403bef2e482.exe
Size

916KB
MD5

02a93c181aa787c5b4dd74ac314938f6
SHA1

03d9ce339c557636a74ceda3b9a30ceb36a119df
SHA256

e183e9fadca4fb94ecca6406d94af72c20293eb3ede73ed1b9266403bef2e482
SHA512

0aa5522749923910babf2125748ab1932c5528b9a61ec8182f396727b8a29f330f36683ee0ff3b2c87f9756dc4642d6eab9a43f2d9e0f672373f3dc2e6363f19
SSDEEP

12288:Coro7edR+tBKnB9aji1Wnbl5FA9JUDgGfL29X5XK5czlcYY9t:Coro7edwtwnBgjiGxbk3G1t

Score

10^/10

darkcomet guest16 evasion rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

85.114.21.112:1604

Mutex

DC_MUTEX-GKQEPVA

Attributes

gencode
8jMC0K0T3d3j
install
false
offline_keylogger
true
persistence
false

Signatures

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

Executes dropped EXE 1 IoCs

pid	Process
4424	290551.exe

Sets file to hidden 1 TTPs 2 IoCs

Modifies file attributes to stop it showing in Explorer etc.

evasion

Hidden Files and Directories

T1158

pid	Process
3700	attrib.exe
396	attrib.exe

UPX packed file 4 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/files/0x000400000001e446-134.dat	upx
behavioral2/memory/4424-135-0x0000000000400000-0x00000000004E8000-memory.dmp	upx
behavioral2/files/0x000400000001e446-136.dat	upx
behavioral2/memory/4424-137-0x0000000000400000-0x00000000004E8000-memory.dmp	upx

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-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\Geo\Nation	290551.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4424	290551.exe

Suspicious use of AdjustPrivilegeToken 24 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	4424	290551.exe
Token: SeSecurityPrivilege	4424	290551.exe
Token: SeTakeOwnershipPrivilege	4424	290551.exe
Token: SeLoadDriverPrivilege	4424	290551.exe
Token: SeSystemProfilePrivilege	4424	290551.exe
Token: SeSystemtimePrivilege	4424	290551.exe
Token: SeProfSingleProcessPrivilege	4424	290551.exe
Token: SeIncBasePriorityPrivilege	4424	290551.exe
Token: SeCreatePagefilePrivilege	4424	290551.exe
Token: SeBackupPrivilege	4424	290551.exe
Token: SeRestorePrivilege	4424	290551.exe
Token: SeShutdownPrivilege	4424	290551.exe
Token: SeDebugPrivilege	4424	290551.exe
Token: SeSystemEnvironmentPrivilege	4424	290551.exe
Token: SeChangeNotifyPrivilege	4424	290551.exe
Token: SeRemoteShutdownPrivilege	4424	290551.exe
Token: SeUndockPrivilege	4424	290551.exe
Token: SeManageVolumePrivilege	4424	290551.exe
Token: SeImpersonatePrivilege	4424	290551.exe
Token: SeCreateGlobalPrivilege	4424	290551.exe
Token: 33	4424	290551.exe
Token: 34	4424	290551.exe
Token: 35	4424	290551.exe
Token: 36	4424	290551.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4424	290551.exe

Suspicious use of WriteProcessMemory 37 IoCs

description	pid	Process	procid_target
PID 4540 wrote to memory of 4424	4540	e183e9fadca4fb94ecca6406d94af72c20293eb3ede73ed1b9266403bef2e482.exe	87
PID 4540 wrote to memory of 4424	4540	e183e9fadca4fb94ecca6406d94af72c20293eb3ede73ed1b9266403bef2e482.exe	87
PID 4540 wrote to memory of 4424	4540	e183e9fadca4fb94ecca6406d94af72c20293eb3ede73ed1b9266403bef2e482.exe	87
PID 4424 wrote to memory of 1300	4424	290551.exe	89
PID 4424 wrote to memory of 1300	4424	290551.exe	89
PID 4424 wrote to memory of 1300	4424	290551.exe	89
PID 4424 wrote to memory of 2504	4424	290551.exe	91
PID 4424 wrote to memory of 2504	4424	290551.exe	91
PID 4424 wrote to memory of 2504	4424	290551.exe	91
PID 4424 wrote to memory of 2044	4424	290551.exe	92
PID 4424 wrote to memory of 2044	4424	290551.exe	92
PID 4424 wrote to memory of 2044	4424	290551.exe	92
PID 4424 wrote to memory of 2044	4424	290551.exe	92
PID 4424 wrote to memory of 2044	4424	290551.exe	92
PID 4424 wrote to memory of 2044	4424	290551.exe	92
PID 4424 wrote to memory of 2044	4424	290551.exe	92
PID 4424 wrote to memory of 2044	4424	290551.exe	92
PID 4424 wrote to memory of 2044	4424	290551.exe	92
PID 4424 wrote to memory of 2044	4424	290551.exe	92
PID 4424 wrote to memory of 2044	4424	290551.exe	92
PID 4424 wrote to memory of 2044	4424	290551.exe	92
PID 4424 wrote to memory of 2044	4424	290551.exe	92
PID 4424 wrote to memory of 2044	4424	290551.exe	92
PID 4424 wrote to memory of 2044	4424	290551.exe	92
PID 4424 wrote to memory of 2044	4424	290551.exe	92
PID 4424 wrote to memory of 2044	4424	290551.exe	92
PID 4424 wrote to memory of 2044	4424	290551.exe	92
PID 4424 wrote to memory of 2044	4424	290551.exe	92
PID 4424 wrote to memory of 2044	4424	290551.exe	92
PID 4424 wrote to memory of 2044	4424	290551.exe	92
PID 4424 wrote to memory of 2044	4424	290551.exe	92
PID 2504 wrote to memory of 3700	2504	cmd.exe	94
PID 2504 wrote to memory of 3700	2504	cmd.exe	94
PID 2504 wrote to memory of 3700	2504	cmd.exe	94
PID 1300 wrote to memory of 396	1300	cmd.exe	95
PID 1300 wrote to memory of 396	1300	cmd.exe	95
PID 1300 wrote to memory of 396	1300	cmd.exe	95

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1158

pid	Process
3700	attrib.exe
396	attrib.exe

C:\Users\Admin\AppData\Local\Temp\e183e9fadca4fb94ecca6406d94af72c20293eb3ede73ed1b9266403bef2e482.exe
"C:\Users\Admin\AppData\Local\Temp\e183e9fadca4fb94ecca6406d94af72c20293eb3ede73ed1b9266403bef2e482.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4540
- C:\Users\Admin\AppData\Local\Temp\290551.exe
  C:\Users\Admin\AppData\Local\Temp\290551.exe
  2⤵
  - Executes dropped EXE
  - Checks computer location settings
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4424
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\290551.exe" +s +h
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1300
  - - C:\Windows\SysWOW64\attrib.exe
      attrib "C:\Users\Admin\AppData\Local\Temp\290551.exe" +s +h
      4⤵
      Sets file to hidden
      Views/modifies file attributes
      PID:396
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2504
  - - C:\Windows\SysWOW64\attrib.exe
      attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
      4⤵
      Sets file to hidden
      Views/modifies file attributes
      PID:3700
- - C:\Windows\SysWOW64\notepad.exe
    notepad
    3⤵
    PID:2044

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Hidden Files and Directories

T1158

Privilege Escalation

Defense Evasion

Hidden Files and Directories

T1158

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\290551.exe

Filesize
349KB

MD5
c94801fbe7f3f345b9478118b6b5e4d9

SHA1
865de5246382ec56cd9d320a10f74668ad000690

SHA256
9809fcdd5ae0f053dca3807ae77f8221da571273930725ab079e32d2673f8c69

SHA512
127c34072ec97ab6aed1464f79448ed22da592083eb282233c4c40f2aa948f55b1966a9d85802819357d501e43392f596b0f9f0b1de8965a6e82f34dc1f7108a

Download Submit
C:\Users\Admin\AppData\Local\Temp\290551.exe

Filesize
349KB

MD5
c94801fbe7f3f345b9478118b6b5e4d9

SHA1
865de5246382ec56cd9d320a10f74668ad000690

SHA256
9809fcdd5ae0f053dca3807ae77f8221da571273930725ab079e32d2673f8c69

SHA512
127c34072ec97ab6aed1464f79448ed22da592083eb282233c4c40f2aa948f55b1966a9d85802819357d501e43392f596b0f9f0b1de8965a6e82f34dc1f7108a

Download Submit
memory/4424-135-0x0000000000400000-0x00000000004E8000-memory.dmp

Filesize
928KB

Download
memory/4424-137-0x0000000000400000-0x00000000004E8000-memory.dmp

Filesize
928KB

Download
memory/4540-132-0x00007FFA19050000-0x00007FFA19A86000-memory.dmp

Filesize
10.2MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads