darkcomet | b734e86bf0004fc28d0461931d180ac6dee413a8c0ce9de25a6e52c92f9933e4

Analysis

max time kernel
151s
max time network
50s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
26/11/2022, 02:09

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General

Target

b734e86bf0004fc28d0461931d180ac6dee413a8c0ce9de25a6e52c92f9933e4.exe
Size

413KB
MD5

76b457fa5ae1c6a25e31482690516e76
SHA1

fc07725fe87907bae71b5b9110634244cefee8de
SHA256

b734e86bf0004fc28d0461931d180ac6dee413a8c0ce9de25a6e52c92f9933e4
SHA512

4e87f901b69c3f2b59ae25afb8853e0fe9c686235c73e18a488ab736d7d6b57ac3759f41cdeaa81c7c69ed0ae4f4bf66326c4d18a5e525fb9fb3ea8bd7a1d17c
SSDEEP

6144:6cNYS996KFifeVjBpeExgVTFSXFoMc5RhCaL37ft:6cW7KEZlPzCy37V

Score

10^/10

darkcomet guest16 persistence rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

teetertootor.no-ip.org:1604

Mutex

DC_MUTEX-JL0SAE3

Attributes

InstallPath
BossWarZ\BossWarZ.exe
gencode
RW32BHwn9J8G
install
true
offline_keylogger
true
persistence
true
reg_key
BossWarZUpdate

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\\BossWarZ\\BossWarZ.exe"	b734e86bf0004fc28d0461931d180ac6dee413a8c0ce9de25a6e52c92f9933e4.exe

Executes dropped EXE 1 IoCs

pid	Process
1556	BossWarZ.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1120-55-0x0000000000400000-0x0000000000508000-memory.dmp	upx
behavioral1/files/0x0008000000014151-56.dat	upx
behavioral1/files/0x0008000000014151-57.dat	upx
behavioral1/files/0x0008000000014151-59.dat	upx
behavioral1/files/0x0008000000014151-61.dat	upx
behavioral1/memory/1556-63-0x0000000000400000-0x0000000000508000-memory.dmp	upx
behavioral1/memory/1120-64-0x0000000000400000-0x0000000000508000-memory.dmp	upx
behavioral1/memory/1556-65-0x0000000000400000-0x0000000000508000-memory.dmp	upx

Loads dropped DLL 2 IoCs

pid	Process
1120	b734e86bf0004fc28d0461931d180ac6dee413a8c0ce9de25a6e52c92f9933e4.exe
1120	b734e86bf0004fc28d0461931d180ac6dee413a8c0ce9de25a6e52c92f9933e4.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-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\BossWarZUpdate = "C:\\ProgramData\\Microsoft\\Windows\\Start Menu\\BossWarZ\\BossWarZ.exe"	BossWarZ.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\BossWarZUpdate = "C:\\ProgramData\\Microsoft\\Windows\\Start Menu\\BossWarZ\\BossWarZ.exe"	b734e86bf0004fc28d0461931d180ac6dee413a8c0ce9de25a6e52c92f9933e4.exe

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	1120	b734e86bf0004fc28d0461931d180ac6dee413a8c0ce9de25a6e52c92f9933e4.exe
Token: SeSecurityPrivilege	1120	b734e86bf0004fc28d0461931d180ac6dee413a8c0ce9de25a6e52c92f9933e4.exe
Token: SeTakeOwnershipPrivilege	1120	b734e86bf0004fc28d0461931d180ac6dee413a8c0ce9de25a6e52c92f9933e4.exe
Token: SeLoadDriverPrivilege	1120	b734e86bf0004fc28d0461931d180ac6dee413a8c0ce9de25a6e52c92f9933e4.exe
Token: SeSystemProfilePrivilege	1120	b734e86bf0004fc28d0461931d180ac6dee413a8c0ce9de25a6e52c92f9933e4.exe
Token: SeSystemtimePrivilege	1120	b734e86bf0004fc28d0461931d180ac6dee413a8c0ce9de25a6e52c92f9933e4.exe
Token: SeProfSingleProcessPrivilege	1120	b734e86bf0004fc28d0461931d180ac6dee413a8c0ce9de25a6e52c92f9933e4.exe
Token: SeIncBasePriorityPrivilege	1120	b734e86bf0004fc28d0461931d180ac6dee413a8c0ce9de25a6e52c92f9933e4.exe
Token: SeCreatePagefilePrivilege	1120	b734e86bf0004fc28d0461931d180ac6dee413a8c0ce9de25a6e52c92f9933e4.exe
Token: SeBackupPrivilege	1120	b734e86bf0004fc28d0461931d180ac6dee413a8c0ce9de25a6e52c92f9933e4.exe
Token: SeRestorePrivilege	1120	b734e86bf0004fc28d0461931d180ac6dee413a8c0ce9de25a6e52c92f9933e4.exe
Token: SeShutdownPrivilege	1120	b734e86bf0004fc28d0461931d180ac6dee413a8c0ce9de25a6e52c92f9933e4.exe
Token: SeDebugPrivilege	1120	b734e86bf0004fc28d0461931d180ac6dee413a8c0ce9de25a6e52c92f9933e4.exe
Token: SeSystemEnvironmentPrivilege	1120	b734e86bf0004fc28d0461931d180ac6dee413a8c0ce9de25a6e52c92f9933e4.exe
Token: SeChangeNotifyPrivilege	1120	b734e86bf0004fc28d0461931d180ac6dee413a8c0ce9de25a6e52c92f9933e4.exe
Token: SeRemoteShutdownPrivilege	1120	b734e86bf0004fc28d0461931d180ac6dee413a8c0ce9de25a6e52c92f9933e4.exe
Token: SeUndockPrivilege	1120	b734e86bf0004fc28d0461931d180ac6dee413a8c0ce9de25a6e52c92f9933e4.exe
Token: SeManageVolumePrivilege	1120	b734e86bf0004fc28d0461931d180ac6dee413a8c0ce9de25a6e52c92f9933e4.exe
Token: SeImpersonatePrivilege	1120	b734e86bf0004fc28d0461931d180ac6dee413a8c0ce9de25a6e52c92f9933e4.exe
Token: SeCreateGlobalPrivilege	1120	b734e86bf0004fc28d0461931d180ac6dee413a8c0ce9de25a6e52c92f9933e4.exe
Token: 33	1120	b734e86bf0004fc28d0461931d180ac6dee413a8c0ce9de25a6e52c92f9933e4.exe
Token: 34	1120	b734e86bf0004fc28d0461931d180ac6dee413a8c0ce9de25a6e52c92f9933e4.exe
Token: 35	1120	b734e86bf0004fc28d0461931d180ac6dee413a8c0ce9de25a6e52c92f9933e4.exe
Token: SeIncreaseQuotaPrivilege	1556	BossWarZ.exe
Token: SeSecurityPrivilege	1556	BossWarZ.exe
Token: SeTakeOwnershipPrivilege	1556	BossWarZ.exe
Token: SeLoadDriverPrivilege	1556	BossWarZ.exe
Token: SeSystemProfilePrivilege	1556	BossWarZ.exe
Token: SeSystemtimePrivilege	1556	BossWarZ.exe
Token: SeProfSingleProcessPrivilege	1556	BossWarZ.exe
Token: SeIncBasePriorityPrivilege	1556	BossWarZ.exe
Token: SeCreatePagefilePrivilege	1556	BossWarZ.exe
Token: SeBackupPrivilege	1556	BossWarZ.exe
Token: SeRestorePrivilege	1556	BossWarZ.exe
Token: SeShutdownPrivilege	1556	BossWarZ.exe
Token: SeDebugPrivilege	1556	BossWarZ.exe
Token: SeSystemEnvironmentPrivilege	1556	BossWarZ.exe
Token: SeChangeNotifyPrivilege	1556	BossWarZ.exe
Token: SeRemoteShutdownPrivilege	1556	BossWarZ.exe
Token: SeUndockPrivilege	1556	BossWarZ.exe
Token: SeManageVolumePrivilege	1556	BossWarZ.exe
Token: SeImpersonatePrivilege	1556	BossWarZ.exe
Token: SeCreateGlobalPrivilege	1556	BossWarZ.exe
Token: 33	1556	BossWarZ.exe
Token: 34	1556	BossWarZ.exe
Token: 35	1556	BossWarZ.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1556	BossWarZ.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1120 wrote to memory of 1556	1120	b734e86bf0004fc28d0461931d180ac6dee413a8c0ce9de25a6e52c92f9933e4.exe	27
PID 1120 wrote to memory of 1556	1120	b734e86bf0004fc28d0461931d180ac6dee413a8c0ce9de25a6e52c92f9933e4.exe	27
PID 1120 wrote to memory of 1556	1120	b734e86bf0004fc28d0461931d180ac6dee413a8c0ce9de25a6e52c92f9933e4.exe	27
PID 1120 wrote to memory of 1556	1120	b734e86bf0004fc28d0461931d180ac6dee413a8c0ce9de25a6e52c92f9933e4.exe	27
PID 1556 wrote to memory of 1724	1556	BossWarZ.exe	28
PID 1556 wrote to memory of 1724	1556	BossWarZ.exe	28
PID 1556 wrote to memory of 1724	1556	BossWarZ.exe	28
PID 1556 wrote to memory of 1724	1556	BossWarZ.exe	28
PID 1556 wrote to memory of 844	1556	BossWarZ.exe	29
PID 1556 wrote to memory of 844	1556	BossWarZ.exe	29
PID 1556 wrote to memory of 844	1556	BossWarZ.exe	29
PID 1556 wrote to memory of 844	1556	BossWarZ.exe	29

C:\Users\Admin\AppData\Local\Temp\b734e86bf0004fc28d0461931d180ac6dee413a8c0ce9de25a6e52c92f9933e4.exe
"C:\Users\Admin\AppData\Local\Temp\b734e86bf0004fc28d0461931d180ac6dee413a8c0ce9de25a6e52c92f9933e4.exe"
1⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1120
- C:\ProgramData\Microsoft\Windows\Start Menu\BossWarZ\BossWarZ.exe
  "C:\ProgramData\Microsoft\Windows\Start Menu\BossWarZ\BossWarZ.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1556
- - C:\Program Files (x86)\Internet Explorer\iexplore.exe
    "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
    3⤵
    PID:1724
- - C:\Windows\explorer.exe
    "C:\Windows\explorer.exe"
    3⤵
    PID:844

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\BossWarZ\BossWarZ.exe

Filesize
413KB

MD5
76b457fa5ae1c6a25e31482690516e76

SHA1
fc07725fe87907bae71b5b9110634244cefee8de

SHA256
b734e86bf0004fc28d0461931d180ac6dee413a8c0ce9de25a6e52c92f9933e4

SHA512
4e87f901b69c3f2b59ae25afb8853e0fe9c686235c73e18a488ab736d7d6b57ac3759f41cdeaa81c7c69ed0ae4f4bf66326c4d18a5e525fb9fb3ea8bd7a1d17c

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

Filesize
413KB

MD5
76b457fa5ae1c6a25e31482690516e76

SHA1
fc07725fe87907bae71b5b9110634244cefee8de

SHA256
b734e86bf0004fc28d0461931d180ac6dee413a8c0ce9de25a6e52c92f9933e4

SHA512
4e87f901b69c3f2b59ae25afb8853e0fe9c686235c73e18a488ab736d7d6b57ac3759f41cdeaa81c7c69ed0ae4f4bf66326c4d18a5e525fb9fb3ea8bd7a1d17c

Download Submit
\ProgramData\Microsoft\Windows\Start Menu\BossWarZ\BossWarZ.exe

Filesize
413KB

MD5
76b457fa5ae1c6a25e31482690516e76

SHA1
fc07725fe87907bae71b5b9110634244cefee8de

SHA256
b734e86bf0004fc28d0461931d180ac6dee413a8c0ce9de25a6e52c92f9933e4

SHA512
4e87f901b69c3f2b59ae25afb8853e0fe9c686235c73e18a488ab736d7d6b57ac3759f41cdeaa81c7c69ed0ae4f4bf66326c4d18a5e525fb9fb3ea8bd7a1d17c

Download Submit
\ProgramData\Microsoft\Windows\Start Menu\BossWarZ\BossWarZ.exe

Filesize
413KB

MD5
76b457fa5ae1c6a25e31482690516e76

SHA1
fc07725fe87907bae71b5b9110634244cefee8de

SHA256
b734e86bf0004fc28d0461931d180ac6dee413a8c0ce9de25a6e52c92f9933e4

SHA512
4e87f901b69c3f2b59ae25afb8853e0fe9c686235c73e18a488ab736d7d6b57ac3759f41cdeaa81c7c69ed0ae4f4bf66326c4d18a5e525fb9fb3ea8bd7a1d17c

Download Submit
memory/1120-54-0x0000000075DF1000-0x0000000075DF3000-memory.dmp

Filesize
8KB

Download
memory/1120-55-0x0000000000400000-0x0000000000508000-memory.dmp

Filesize
1.0MB

Download
memory/1120-62-0x0000000005010000-0x0000000005118000-memory.dmp

Filesize
1.0MB

Download
memory/1120-64-0x0000000000400000-0x0000000000508000-memory.dmp

Filesize
1.0MB

Download
memory/1556-63-0x0000000000400000-0x0000000000508000-memory.dmp

Filesize
1.0MB

Download
memory/1556-65-0x0000000000400000-0x0000000000508000-memory.dmp

Filesize
1.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads