darkcomet | b0895dfbfb9bb96ed8da1d554eb5976fb528987afad40bebd3075248db0f8d0f

Analysis

max time kernel
225s
max time network
187s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
25-11-2022 17:42

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General

Target

b0895dfbfb9bb96ed8da1d554eb5976fb528987afad40bebd3075248db0f8d0f.exe
Size

690KB
MD5

54d3574cfde543e51862cf05b945dd98
SHA1

489be6c7138bb009ae5a34adec26e2166673ae56
SHA256

b0895dfbfb9bb96ed8da1d554eb5976fb528987afad40bebd3075248db0f8d0f
SHA512

96cdcf286ffedf52ff253e71421343e7b580a6f13cc6d9fa7c38bb539a6a363f2ec5ad4ef1fe623f72d9105c31d7e4ef9def248822ca8477948763f550ee9991
SSDEEP

12288:l9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hDp:vZ1xuVVjfFoynPaVBUR8f+kN10EBf

Score

10^/10

darkcomet unknown3!evasion persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Unknown3!

userrrrname.ddns.net:1604

Mutex

DC_MUTEX-VPEC87C

Attributes

InstallPath
treason\Adobe.exe
gencode
ctluHehWDMRs
install
true
offline_keylogger
true
persistence
true
reg_key
Adobe Flash Updater

Signatures

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

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Windows\\system32\\treason\\Adobe.exe"	b0895dfbfb9bb96ed8da1d554eb5976fb528987afad40bebd3075248db0f8d0f.exe

Executes dropped EXE 1 IoCs

pid	Process
1548	Adobe.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
1492	attrib.exe
1872	attrib.exe

Deletes itself 1 IoCs

pid	Process
1188	notepad.exe

Loads dropped DLL 2 IoCs

pid	Process
1880	b0895dfbfb9bb96ed8da1d554eb5976fb528987afad40bebd3075248db0f8d0f.exe
1880	b0895dfbfb9bb96ed8da1d554eb5976fb528987afad40bebd3075248db0f8d0f.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\Adobe Flash Updater = "C:\\Windows\\system32\\treason\\Adobe.exe"	b0895dfbfb9bb96ed8da1d554eb5976fb528987afad40bebd3075248db0f8d0f.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\Adobe Flash Updater = "C:\\Windows\\system32\\treason\\Adobe.exe"	Adobe.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\treason\Adobe.exe	b0895dfbfb9bb96ed8da1d554eb5976fb528987afad40bebd3075248db0f8d0f.exe
File opened for modification	C:\Windows\SysWOW64\treason\Adobe.exe	b0895dfbfb9bb96ed8da1d554eb5976fb528987afad40bebd3075248db0f8d0f.exe
File opened for modification	C:\Windows\SysWOW64\treason\	b0895dfbfb9bb96ed8da1d554eb5976fb528987afad40bebd3075248db0f8d0f.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
1548	Adobe.exe

Suspicious use of AdjustPrivilegeToken 46 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	1880	b0895dfbfb9bb96ed8da1d554eb5976fb528987afad40bebd3075248db0f8d0f.exe
Token: SeSecurityPrivilege	1880	b0895dfbfb9bb96ed8da1d554eb5976fb528987afad40bebd3075248db0f8d0f.exe
Token: SeTakeOwnershipPrivilege	1880	b0895dfbfb9bb96ed8da1d554eb5976fb528987afad40bebd3075248db0f8d0f.exe
Token: SeLoadDriverPrivilege	1880	b0895dfbfb9bb96ed8da1d554eb5976fb528987afad40bebd3075248db0f8d0f.exe
Token: SeSystemProfilePrivilege	1880	b0895dfbfb9bb96ed8da1d554eb5976fb528987afad40bebd3075248db0f8d0f.exe
Token: SeSystemtimePrivilege	1880	b0895dfbfb9bb96ed8da1d554eb5976fb528987afad40bebd3075248db0f8d0f.exe
Token: SeProfSingleProcessPrivilege	1880	b0895dfbfb9bb96ed8da1d554eb5976fb528987afad40bebd3075248db0f8d0f.exe
Token: SeIncBasePriorityPrivilege	1880	b0895dfbfb9bb96ed8da1d554eb5976fb528987afad40bebd3075248db0f8d0f.exe
Token: SeCreatePagefilePrivilege	1880	b0895dfbfb9bb96ed8da1d554eb5976fb528987afad40bebd3075248db0f8d0f.exe
Token: SeBackupPrivilege	1880	b0895dfbfb9bb96ed8da1d554eb5976fb528987afad40bebd3075248db0f8d0f.exe
Token: SeRestorePrivilege	1880	b0895dfbfb9bb96ed8da1d554eb5976fb528987afad40bebd3075248db0f8d0f.exe
Token: SeShutdownPrivilege	1880	b0895dfbfb9bb96ed8da1d554eb5976fb528987afad40bebd3075248db0f8d0f.exe
Token: SeDebugPrivilege	1880	b0895dfbfb9bb96ed8da1d554eb5976fb528987afad40bebd3075248db0f8d0f.exe
Token: SeSystemEnvironmentPrivilege	1880	b0895dfbfb9bb96ed8da1d554eb5976fb528987afad40bebd3075248db0f8d0f.exe
Token: SeChangeNotifyPrivilege	1880	b0895dfbfb9bb96ed8da1d554eb5976fb528987afad40bebd3075248db0f8d0f.exe
Token: SeRemoteShutdownPrivilege	1880	b0895dfbfb9bb96ed8da1d554eb5976fb528987afad40bebd3075248db0f8d0f.exe
Token: SeUndockPrivilege	1880	b0895dfbfb9bb96ed8da1d554eb5976fb528987afad40bebd3075248db0f8d0f.exe
Token: SeManageVolumePrivilege	1880	b0895dfbfb9bb96ed8da1d554eb5976fb528987afad40bebd3075248db0f8d0f.exe
Token: SeImpersonatePrivilege	1880	b0895dfbfb9bb96ed8da1d554eb5976fb528987afad40bebd3075248db0f8d0f.exe
Token: SeCreateGlobalPrivilege	1880	b0895dfbfb9bb96ed8da1d554eb5976fb528987afad40bebd3075248db0f8d0f.exe
Token: 33	1880	b0895dfbfb9bb96ed8da1d554eb5976fb528987afad40bebd3075248db0f8d0f.exe
Token: 34	1880	b0895dfbfb9bb96ed8da1d554eb5976fb528987afad40bebd3075248db0f8d0f.exe
Token: 35	1880	b0895dfbfb9bb96ed8da1d554eb5976fb528987afad40bebd3075248db0f8d0f.exe
Token: SeIncreaseQuotaPrivilege	1548	Adobe.exe
Token: SeSecurityPrivilege	1548	Adobe.exe
Token: SeTakeOwnershipPrivilege	1548	Adobe.exe
Token: SeLoadDriverPrivilege	1548	Adobe.exe
Token: SeSystemProfilePrivilege	1548	Adobe.exe
Token: SeSystemtimePrivilege	1548	Adobe.exe
Token: SeProfSingleProcessPrivilege	1548	Adobe.exe
Token: SeIncBasePriorityPrivilege	1548	Adobe.exe
Token: SeCreatePagefilePrivilege	1548	Adobe.exe
Token: SeBackupPrivilege	1548	Adobe.exe
Token: SeRestorePrivilege	1548	Adobe.exe
Token: SeShutdownPrivilege	1548	Adobe.exe
Token: SeDebugPrivilege	1548	Adobe.exe
Token: SeSystemEnvironmentPrivilege	1548	Adobe.exe
Token: SeChangeNotifyPrivilege	1548	Adobe.exe
Token: SeRemoteShutdownPrivilege	1548	Adobe.exe
Token: SeUndockPrivilege	1548	Adobe.exe
Token: SeManageVolumePrivilege	1548	Adobe.exe
Token: SeImpersonatePrivilege	1548	Adobe.exe
Token: SeCreateGlobalPrivilege	1548	Adobe.exe
Token: 33	1548	Adobe.exe
Token: 34	1548	Adobe.exe
Token: 35	1548	Adobe.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1548	Adobe.exe

Suspicious use of WriteProcessMemory 61 IoCs

description	pid	Process	procid_target
PID 1880 wrote to memory of 560	1880	b0895dfbfb9bb96ed8da1d554eb5976fb528987afad40bebd3075248db0f8d0f.exe	28
PID 1880 wrote to memory of 560	1880	b0895dfbfb9bb96ed8da1d554eb5976fb528987afad40bebd3075248db0f8d0f.exe	28
PID 1880 wrote to memory of 560	1880	b0895dfbfb9bb96ed8da1d554eb5976fb528987afad40bebd3075248db0f8d0f.exe	28
PID 1880 wrote to memory of 560	1880	b0895dfbfb9bb96ed8da1d554eb5976fb528987afad40bebd3075248db0f8d0f.exe	28
PID 1880 wrote to memory of 520	1880	b0895dfbfb9bb96ed8da1d554eb5976fb528987afad40bebd3075248db0f8d0f.exe	30
PID 1880 wrote to memory of 520	1880	b0895dfbfb9bb96ed8da1d554eb5976fb528987afad40bebd3075248db0f8d0f.exe	30
PID 1880 wrote to memory of 520	1880	b0895dfbfb9bb96ed8da1d554eb5976fb528987afad40bebd3075248db0f8d0f.exe	30
PID 1880 wrote to memory of 520	1880	b0895dfbfb9bb96ed8da1d554eb5976fb528987afad40bebd3075248db0f8d0f.exe	30
PID 520 wrote to memory of 1492	520	cmd.exe	33
PID 520 wrote to memory of 1492	520	cmd.exe	33
PID 520 wrote to memory of 1492	520	cmd.exe	33
PID 520 wrote to memory of 1492	520	cmd.exe	33
PID 560 wrote to memory of 1872	560	cmd.exe	32
PID 560 wrote to memory of 1872	560	cmd.exe	32
PID 560 wrote to memory of 1872	560	cmd.exe	32
PID 560 wrote to memory of 1872	560	cmd.exe	32
PID 1880 wrote to memory of 1188	1880	b0895dfbfb9bb96ed8da1d554eb5976fb528987afad40bebd3075248db0f8d0f.exe	34
PID 1880 wrote to memory of 1188	1880	b0895dfbfb9bb96ed8da1d554eb5976fb528987afad40bebd3075248db0f8d0f.exe	34
PID 1880 wrote to memory of 1188	1880	b0895dfbfb9bb96ed8da1d554eb5976fb528987afad40bebd3075248db0f8d0f.exe	34
PID 1880 wrote to memory of 1188	1880	b0895dfbfb9bb96ed8da1d554eb5976fb528987afad40bebd3075248db0f8d0f.exe	34
PID 1880 wrote to memory of 1188	1880	b0895dfbfb9bb96ed8da1d554eb5976fb528987afad40bebd3075248db0f8d0f.exe	34
PID 1880 wrote to memory of 1188	1880	b0895dfbfb9bb96ed8da1d554eb5976fb528987afad40bebd3075248db0f8d0f.exe	34
PID 1880 wrote to memory of 1188	1880	b0895dfbfb9bb96ed8da1d554eb5976fb528987afad40bebd3075248db0f8d0f.exe	34
PID 1880 wrote to memory of 1188	1880	b0895dfbfb9bb96ed8da1d554eb5976fb528987afad40bebd3075248db0f8d0f.exe	34
PID 1880 wrote to memory of 1188	1880	b0895dfbfb9bb96ed8da1d554eb5976fb528987afad40bebd3075248db0f8d0f.exe	34
PID 1880 wrote to memory of 1188	1880	b0895dfbfb9bb96ed8da1d554eb5976fb528987afad40bebd3075248db0f8d0f.exe	34
PID 1880 wrote to memory of 1188	1880	b0895dfbfb9bb96ed8da1d554eb5976fb528987afad40bebd3075248db0f8d0f.exe	34
PID 1880 wrote to memory of 1188	1880	b0895dfbfb9bb96ed8da1d554eb5976fb528987afad40bebd3075248db0f8d0f.exe	34
PID 1880 wrote to memory of 1188	1880	b0895dfbfb9bb96ed8da1d554eb5976fb528987afad40bebd3075248db0f8d0f.exe	34
PID 1880 wrote to memory of 1188	1880	b0895dfbfb9bb96ed8da1d554eb5976fb528987afad40bebd3075248db0f8d0f.exe	34
PID 1880 wrote to memory of 1188	1880	b0895dfbfb9bb96ed8da1d554eb5976fb528987afad40bebd3075248db0f8d0f.exe	34
PID 1880 wrote to memory of 1188	1880	b0895dfbfb9bb96ed8da1d554eb5976fb528987afad40bebd3075248db0f8d0f.exe	34
PID 1880 wrote to memory of 1188	1880	b0895dfbfb9bb96ed8da1d554eb5976fb528987afad40bebd3075248db0f8d0f.exe	34
PID 1880 wrote to memory of 1188	1880	b0895dfbfb9bb96ed8da1d554eb5976fb528987afad40bebd3075248db0f8d0f.exe	34
PID 1880 wrote to memory of 1548	1880	b0895dfbfb9bb96ed8da1d554eb5976fb528987afad40bebd3075248db0f8d0f.exe	35
PID 1880 wrote to memory of 1548	1880	b0895dfbfb9bb96ed8da1d554eb5976fb528987afad40bebd3075248db0f8d0f.exe	35
PID 1880 wrote to memory of 1548	1880	b0895dfbfb9bb96ed8da1d554eb5976fb528987afad40bebd3075248db0f8d0f.exe	35
PID 1880 wrote to memory of 1548	1880	b0895dfbfb9bb96ed8da1d554eb5976fb528987afad40bebd3075248db0f8d0f.exe	35
PID 1548 wrote to memory of 316	1548	Adobe.exe	36
PID 1548 wrote to memory of 316	1548	Adobe.exe	36
PID 1548 wrote to memory of 316	1548	Adobe.exe	36
PID 1548 wrote to memory of 316	1548	Adobe.exe	36
PID 1548 wrote to memory of 316	1548	Adobe.exe	36
PID 1548 wrote to memory of 316	1548	Adobe.exe	36
PID 1548 wrote to memory of 316	1548	Adobe.exe	36
PID 1548 wrote to memory of 316	1548	Adobe.exe	36
PID 1548 wrote to memory of 316	1548	Adobe.exe	36
PID 1548 wrote to memory of 316	1548	Adobe.exe	36
PID 1548 wrote to memory of 316	1548	Adobe.exe	36
PID 1548 wrote to memory of 316	1548	Adobe.exe	36
PID 1548 wrote to memory of 316	1548	Adobe.exe	36
PID 1548 wrote to memory of 316	1548	Adobe.exe	36
PID 1548 wrote to memory of 316	1548	Adobe.exe	36
PID 1548 wrote to memory of 316	1548	Adobe.exe	36
PID 1548 wrote to memory of 316	1548	Adobe.exe	36
PID 1548 wrote to memory of 316	1548	Adobe.exe	36
PID 1548 wrote to memory of 316	1548	Adobe.exe	36
PID 1548 wrote to memory of 316	1548	Adobe.exe	36
PID 1548 wrote to memory of 316	1548	Adobe.exe	36
PID 1548 wrote to memory of 316	1548	Adobe.exe	36
PID 1548 wrote to memory of 316	1548	Adobe.exe	36

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1158

pid	Process
1492	attrib.exe
1872	attrib.exe

C:\Users\Admin\AppData\Local\Temp\b0895dfbfb9bb96ed8da1d554eb5976fb528987afad40bebd3075248db0f8d0f.exe
"C:\Users\Admin\AppData\Local\Temp\b0895dfbfb9bb96ed8da1d554eb5976fb528987afad40bebd3075248db0f8d0f.exe"
1⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1880
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\b0895dfbfb9bb96ed8da1d554eb5976fb528987afad40bebd3075248db0f8d0f.exe" +s +h
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:560
- - C:\Windows\SysWOW64\attrib.exe
    attrib "C:\Users\Admin\AppData\Local\Temp\b0895dfbfb9bb96ed8da1d554eb5976fb528987afad40bebd3075248db0f8d0f.exe" +s +h
    3⤵
    - Sets file to hidden
    - Views/modifies file attributes
    PID:1872
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:520
- - C:\Windows\SysWOW64\attrib.exe
    attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
    3⤵
    - Sets file to hidden
    - Views/modifies file attributes
    PID:1492
- C:\Windows\SysWOW64\notepad.exe
  notepad
  2⤵
  - Deletes itself
  PID:1188
- C:\Windows\SysWOW64\treason\Adobe.exe
  "C:\Windows\system32\treason\Adobe.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1548
- - C:\Windows\SysWOW64\notepad.exe
    notepad
    3⤵
    PID:316

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Hidden Files and Directories

T1158

Registry Run Keys / Startup Folder

T1060

Winlogon Helper DLL

T1004

Privilege Escalation

Defense Evasion

Hidden Files and Directories

T1158

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\SysWOW64\treason\Adobe.exe

Filesize
690KB

MD5
54d3574cfde543e51862cf05b945dd98

SHA1
489be6c7138bb009ae5a34adec26e2166673ae56

SHA256
b0895dfbfb9bb96ed8da1d554eb5976fb528987afad40bebd3075248db0f8d0f

SHA512
96cdcf286ffedf52ff253e71421343e7b580a6f13cc6d9fa7c38bb539a6a363f2ec5ad4ef1fe623f72d9105c31d7e4ef9def248822ca8477948763f550ee9991

Download Submit
C:\Windows\SysWOW64\treason\Adobe.exe

Filesize
690KB

MD5
54d3574cfde543e51862cf05b945dd98

SHA1
489be6c7138bb009ae5a34adec26e2166673ae56

SHA256
b0895dfbfb9bb96ed8da1d554eb5976fb528987afad40bebd3075248db0f8d0f

SHA512
96cdcf286ffedf52ff253e71421343e7b580a6f13cc6d9fa7c38bb539a6a363f2ec5ad4ef1fe623f72d9105c31d7e4ef9def248822ca8477948763f550ee9991

Download Submit
\Windows\SysWOW64\treason\Adobe.exe

Filesize
690KB

MD5
54d3574cfde543e51862cf05b945dd98

SHA1
489be6c7138bb009ae5a34adec26e2166673ae56

SHA256
b0895dfbfb9bb96ed8da1d554eb5976fb528987afad40bebd3075248db0f8d0f

SHA512
96cdcf286ffedf52ff253e71421343e7b580a6f13cc6d9fa7c38bb539a6a363f2ec5ad4ef1fe623f72d9105c31d7e4ef9def248822ca8477948763f550ee9991

Download Submit
\Windows\SysWOW64\treason\Adobe.exe

Filesize
690KB

MD5
54d3574cfde543e51862cf05b945dd98

SHA1
489be6c7138bb009ae5a34adec26e2166673ae56

SHA256
b0895dfbfb9bb96ed8da1d554eb5976fb528987afad40bebd3075248db0f8d0f

SHA512
96cdcf286ffedf52ff253e71421343e7b580a6f13cc6d9fa7c38bb539a6a363f2ec5ad4ef1fe623f72d9105c31d7e4ef9def248822ca8477948763f550ee9991

Download Submit
memory/316-67-0x0000000000000000-mapping.dmp

Download
memory/520-56-0x0000000000000000-mapping.dmp

Download
memory/560-55-0x0000000000000000-mapping.dmp

Download
memory/1188-59-0x0000000000000000-mapping.dmp

Download
memory/1492-57-0x0000000000000000-mapping.dmp

Download
memory/1548-63-0x0000000000000000-mapping.dmp

Download
memory/1872-58-0x0000000000000000-mapping.dmp

Download
memory/1880-54-0x0000000075C11000-0x0000000075C13000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads