darkcomet | cb2422fee19846491846526008f4b73d17d8d20bf5c9fc9d161c5492b33c1a72

Analysis

max time kernel
189s
max time network
88s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
03-12-2022 04:54

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General

Target

cb2422fee19846491846526008f4b73d17d8d20bf5c9fc9d161c5492b33c1a72.exe
Size

720KB
MD5

6ba4a7256ec1bfc7df3ce97b038780d1
SHA1

35e84eaad0f438beed9b4ac93cabf89275afe821
SHA256

cb2422fee19846491846526008f4b73d17d8d20bf5c9fc9d161c5492b33c1a72
SHA512

941ea136b35f574c73fb4c3a763909060c02c4abce8b1e0ba8348df1cd49516f30d6ef766363435748b38a1a460dd2b580f240a2020736382501511efaecc73e
SSDEEP

12288:jrayyPRqmsl1nbsemjtyhunREl8QmElwRB7nR8dyV5pwEaKrj0izflO:kQDlJmjtyhuWlzlibR8dyuEaKj0iz9

Score

10^/10

darkcomet naam persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

naam

namuna.zapto.org:5000

Mutex

DCMIN_MUTEX-NWZN7WB

Attributes

InstallPath
MSDCSC\svchost.exe
gencode
rghasalJMHfn
install
true
offline_keylogger
true
persistence
false
reg_key
rundll.exe

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:\\ProgramData\\Microsoft\\Windows\\Start Menu\\MSDCSC\\svchost.exe"	cb2422fee19846491846526008f4b73d17d8d20bf5c9fc9d161c5492b33c1a72.exe

Executes dropped EXE 2 IoCs

pid	Process
808	svchost.exe
1552	svchost.exe

Loads dropped DLL 2 IoCs

pid	Process
660	cb2422fee19846491846526008f4b73d17d8d20bf5c9fc9d161c5492b33c1a72.exe
660	cb2422fee19846491846526008f4b73d17d8d20bf5c9fc9d161c5492b33c1a72.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-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\rundll.exe = "C:\\ProgramData\\Microsoft\\Windows\\Start Menu\\MSDCSC\\svchost.exe"	cb2422fee19846491846526008f4b73d17d8d20bf5c9fc9d161c5492b33c1a72.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1756 set thread context of 660	1756	cb2422fee19846491846526008f4b73d17d8d20bf5c9fc9d161c5492b33c1a72.exe	28
PID 808 set thread context of 1552	808	svchost.exe	30

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 46 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	660	cb2422fee19846491846526008f4b73d17d8d20bf5c9fc9d161c5492b33c1a72.exe
Token: SeSecurityPrivilege	660	cb2422fee19846491846526008f4b73d17d8d20bf5c9fc9d161c5492b33c1a72.exe
Token: SeTakeOwnershipPrivilege	660	cb2422fee19846491846526008f4b73d17d8d20bf5c9fc9d161c5492b33c1a72.exe
Token: SeLoadDriverPrivilege	660	cb2422fee19846491846526008f4b73d17d8d20bf5c9fc9d161c5492b33c1a72.exe
Token: SeSystemProfilePrivilege	660	cb2422fee19846491846526008f4b73d17d8d20bf5c9fc9d161c5492b33c1a72.exe
Token: SeSystemtimePrivilege	660	cb2422fee19846491846526008f4b73d17d8d20bf5c9fc9d161c5492b33c1a72.exe
Token: SeProfSingleProcessPrivilege	660	cb2422fee19846491846526008f4b73d17d8d20bf5c9fc9d161c5492b33c1a72.exe
Token: SeIncBasePriorityPrivilege	660	cb2422fee19846491846526008f4b73d17d8d20bf5c9fc9d161c5492b33c1a72.exe
Token: SeCreatePagefilePrivilege	660	cb2422fee19846491846526008f4b73d17d8d20bf5c9fc9d161c5492b33c1a72.exe
Token: SeBackupPrivilege	660	cb2422fee19846491846526008f4b73d17d8d20bf5c9fc9d161c5492b33c1a72.exe
Token: SeRestorePrivilege	660	cb2422fee19846491846526008f4b73d17d8d20bf5c9fc9d161c5492b33c1a72.exe
Token: SeShutdownPrivilege	660	cb2422fee19846491846526008f4b73d17d8d20bf5c9fc9d161c5492b33c1a72.exe
Token: SeDebugPrivilege	660	cb2422fee19846491846526008f4b73d17d8d20bf5c9fc9d161c5492b33c1a72.exe
Token: SeSystemEnvironmentPrivilege	660	cb2422fee19846491846526008f4b73d17d8d20bf5c9fc9d161c5492b33c1a72.exe
Token: SeChangeNotifyPrivilege	660	cb2422fee19846491846526008f4b73d17d8d20bf5c9fc9d161c5492b33c1a72.exe
Token: SeRemoteShutdownPrivilege	660	cb2422fee19846491846526008f4b73d17d8d20bf5c9fc9d161c5492b33c1a72.exe
Token: SeUndockPrivilege	660	cb2422fee19846491846526008f4b73d17d8d20bf5c9fc9d161c5492b33c1a72.exe
Token: SeManageVolumePrivilege	660	cb2422fee19846491846526008f4b73d17d8d20bf5c9fc9d161c5492b33c1a72.exe
Token: SeImpersonatePrivilege	660	cb2422fee19846491846526008f4b73d17d8d20bf5c9fc9d161c5492b33c1a72.exe
Token: SeCreateGlobalPrivilege	660	cb2422fee19846491846526008f4b73d17d8d20bf5c9fc9d161c5492b33c1a72.exe
Token: 33	660	cb2422fee19846491846526008f4b73d17d8d20bf5c9fc9d161c5492b33c1a72.exe
Token: 34	660	cb2422fee19846491846526008f4b73d17d8d20bf5c9fc9d161c5492b33c1a72.exe
Token: 35	660	cb2422fee19846491846526008f4b73d17d8d20bf5c9fc9d161c5492b33c1a72.exe
Token: SeIncreaseQuotaPrivilege	1552	svchost.exe
Token: SeSecurityPrivilege	1552	svchost.exe
Token: SeTakeOwnershipPrivilege	1552	svchost.exe
Token: SeLoadDriverPrivilege	1552	svchost.exe
Token: SeSystemProfilePrivilege	1552	svchost.exe
Token: SeSystemtimePrivilege	1552	svchost.exe
Token: SeProfSingleProcessPrivilege	1552	svchost.exe
Token: SeIncBasePriorityPrivilege	1552	svchost.exe
Token: SeCreatePagefilePrivilege	1552	svchost.exe
Token: SeBackupPrivilege	1552	svchost.exe
Token: SeRestorePrivilege	1552	svchost.exe
Token: SeShutdownPrivilege	1552	svchost.exe
Token: SeDebugPrivilege	1552	svchost.exe
Token: SeSystemEnvironmentPrivilege	1552	svchost.exe
Token: SeChangeNotifyPrivilege	1552	svchost.exe
Token: SeRemoteShutdownPrivilege	1552	svchost.exe
Token: SeUndockPrivilege	1552	svchost.exe
Token: SeManageVolumePrivilege	1552	svchost.exe
Token: SeImpersonatePrivilege	1552	svchost.exe
Token: SeCreateGlobalPrivilege	1552	svchost.exe
Token: 33	1552	svchost.exe
Token: 34	1552	svchost.exe
Token: 35	1552	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1552	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1756 wrote to memory of 660	1756	cb2422fee19846491846526008f4b73d17d8d20bf5c9fc9d161c5492b33c1a72.exe	28
PID 1756 wrote to memory of 660	1756	cb2422fee19846491846526008f4b73d17d8d20bf5c9fc9d161c5492b33c1a72.exe	28
PID 1756 wrote to memory of 660	1756	cb2422fee19846491846526008f4b73d17d8d20bf5c9fc9d161c5492b33c1a72.exe	28
PID 1756 wrote to memory of 660	1756	cb2422fee19846491846526008f4b73d17d8d20bf5c9fc9d161c5492b33c1a72.exe	28
PID 1756 wrote to memory of 660	1756	cb2422fee19846491846526008f4b73d17d8d20bf5c9fc9d161c5492b33c1a72.exe	28
PID 1756 wrote to memory of 660	1756	cb2422fee19846491846526008f4b73d17d8d20bf5c9fc9d161c5492b33c1a72.exe	28
PID 1756 wrote to memory of 660	1756	cb2422fee19846491846526008f4b73d17d8d20bf5c9fc9d161c5492b33c1a72.exe	28
PID 1756 wrote to memory of 660	1756	cb2422fee19846491846526008f4b73d17d8d20bf5c9fc9d161c5492b33c1a72.exe	28
PID 1756 wrote to memory of 660	1756	cb2422fee19846491846526008f4b73d17d8d20bf5c9fc9d161c5492b33c1a72.exe	28
PID 1756 wrote to memory of 660	1756	cb2422fee19846491846526008f4b73d17d8d20bf5c9fc9d161c5492b33c1a72.exe	28
PID 1756 wrote to memory of 660	1756	cb2422fee19846491846526008f4b73d17d8d20bf5c9fc9d161c5492b33c1a72.exe	28
PID 1756 wrote to memory of 660	1756	cb2422fee19846491846526008f4b73d17d8d20bf5c9fc9d161c5492b33c1a72.exe	28
PID 1756 wrote to memory of 660	1756	cb2422fee19846491846526008f4b73d17d8d20bf5c9fc9d161c5492b33c1a72.exe	28
PID 660 wrote to memory of 808	660	cb2422fee19846491846526008f4b73d17d8d20bf5c9fc9d161c5492b33c1a72.exe	29
PID 660 wrote to memory of 808	660	cb2422fee19846491846526008f4b73d17d8d20bf5c9fc9d161c5492b33c1a72.exe	29
PID 660 wrote to memory of 808	660	cb2422fee19846491846526008f4b73d17d8d20bf5c9fc9d161c5492b33c1a72.exe	29
PID 660 wrote to memory of 808	660	cb2422fee19846491846526008f4b73d17d8d20bf5c9fc9d161c5492b33c1a72.exe	29
PID 808 wrote to memory of 1552	808	svchost.exe	30
PID 808 wrote to memory of 1552	808	svchost.exe	30
PID 808 wrote to memory of 1552	808	svchost.exe	30
PID 808 wrote to memory of 1552	808	svchost.exe	30
PID 808 wrote to memory of 1552	808	svchost.exe	30
PID 808 wrote to memory of 1552	808	svchost.exe	30
PID 808 wrote to memory of 1552	808	svchost.exe	30
PID 808 wrote to memory of 1552	808	svchost.exe	30
PID 808 wrote to memory of 1552	808	svchost.exe	30
PID 808 wrote to memory of 1552	808	svchost.exe	30
PID 808 wrote to memory of 1552	808	svchost.exe	30
PID 808 wrote to memory of 1552	808	svchost.exe	30
PID 808 wrote to memory of 1552	808	svchost.exe	30

C:\Users\Admin\AppData\Local\Temp\cb2422fee19846491846526008f4b73d17d8d20bf5c9fc9d161c5492b33c1a72.exe
"C:\Users\Admin\AppData\Local\Temp\cb2422fee19846491846526008f4b73d17d8d20bf5c9fc9d161c5492b33c1a72.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1756
- C:\Users\Admin\AppData\Local\Temp\cb2422fee19846491846526008f4b73d17d8d20bf5c9fc9d161c5492b33c1a72.exe
  C:\Users\Admin\AppData\Local\Temp\cb2422fee19846491846526008f4b73d17d8d20bf5c9fc9d161c5492b33c1a72.exe
  2⤵
  - Modifies WinLogon for persistence
  - Loads dropped DLL
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:660
- - C:\ProgramData\Microsoft\Windows\Start Menu\MSDCSC\svchost.exe
    "C:\ProgramData\Microsoft\Windows\Start Menu\MSDCSC\svchost.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:808
  - - C:\ProgramData\Microsoft\Windows\Start Menu\MSDCSC\svchost.exe
      "C:\ProgramData\Microsoft\Windows\Start Menu\MSDCSC\svchost.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      PID:1552

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Winlogon Helper DLL

T1004

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\ProgramData\Microsoft\Windows\Start Menu\MSDCSC\svchost.exe

Filesize
720KB

MD5
6ba4a7256ec1bfc7df3ce97b038780d1

SHA1
35e84eaad0f438beed9b4ac93cabf89275afe821

SHA256
cb2422fee19846491846526008f4b73d17d8d20bf5c9fc9d161c5492b33c1a72

SHA512
941ea136b35f574c73fb4c3a763909060c02c4abce8b1e0ba8348df1cd49516f30d6ef766363435748b38a1a460dd2b580f240a2020736382501511efaecc73e

Download Submit
C:\ProgramData\Microsoft\Windows\Start Menu\MSDCSC\svchost.exe

Filesize
720KB

MD5
6ba4a7256ec1bfc7df3ce97b038780d1

SHA1
35e84eaad0f438beed9b4ac93cabf89275afe821

SHA256
cb2422fee19846491846526008f4b73d17d8d20bf5c9fc9d161c5492b33c1a72

SHA512
941ea136b35f574c73fb4c3a763909060c02c4abce8b1e0ba8348df1cd49516f30d6ef766363435748b38a1a460dd2b580f240a2020736382501511efaecc73e

Download Submit
C:\ProgramData\Microsoft\Windows\Start Menu\MSDCSC\svchost.exe

Filesize
720KB

MD5
6ba4a7256ec1bfc7df3ce97b038780d1

SHA1
35e84eaad0f438beed9b4ac93cabf89275afe821

SHA256
cb2422fee19846491846526008f4b73d17d8d20bf5c9fc9d161c5492b33c1a72

SHA512
941ea136b35f574c73fb4c3a763909060c02c4abce8b1e0ba8348df1cd49516f30d6ef766363435748b38a1a460dd2b580f240a2020736382501511efaecc73e

Download Submit
\ProgramData\Microsoft\Windows\Start Menu\MSDCSC\svchost.exe

Filesize
720KB

MD5
6ba4a7256ec1bfc7df3ce97b038780d1

SHA1
35e84eaad0f438beed9b4ac93cabf89275afe821

SHA256
cb2422fee19846491846526008f4b73d17d8d20bf5c9fc9d161c5492b33c1a72

SHA512
941ea136b35f574c73fb4c3a763909060c02c4abce8b1e0ba8348df1cd49516f30d6ef766363435748b38a1a460dd2b580f240a2020736382501511efaecc73e

Download Submit
\ProgramData\Microsoft\Windows\Start Menu\MSDCSC\svchost.exe

Filesize
720KB

MD5
6ba4a7256ec1bfc7df3ce97b038780d1

SHA1
35e84eaad0f438beed9b4ac93cabf89275afe821

SHA256
cb2422fee19846491846526008f4b73d17d8d20bf5c9fc9d161c5492b33c1a72

SHA512
941ea136b35f574c73fb4c3a763909060c02c4abce8b1e0ba8348df1cd49516f30d6ef766363435748b38a1a460dd2b580f240a2020736382501511efaecc73e

Download Submit
memory/660-64-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/660-62-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/660-65-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/660-67-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/660-55-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/660-70-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/660-71-0x000000000048F888-mapping.dmp

Download
memory/660-72-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/660-74-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/660-86-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/660-56-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/660-60-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/660-58-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/808-77-0x0000000000000000-mapping.dmp

Download
memory/1552-97-0x000000000048F888-mapping.dmp

Download
memory/1552-102-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1552-103-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1756-54-0x0000000075931000-0x0000000075933000-memory.dmp

Filesize
8KB

Download
memory/1756-69-0x00000000002E0000-0x00000000002E4000-memory.dmp

Filesize
16KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads