darkcomet | 7d434574ff84cb293111d4ba1b953faa36eb49d8a257539e80b755e3f8fc3224

General

Target

7d434574ff84cb293111d4ba1b953faa36eb49d8a257539e80b755e3f8fc3224.exe
Size

658KB
MD5

6d2af3af93fbb8e1fd8cbfde6fb810c0
SHA1

aa0574609abf1acd8a7e27396548f32e6aac52d7
SHA256

7d434574ff84cb293111d4ba1b953faa36eb49d8a257539e80b755e3f8fc3224
SHA512

08feaec307d69c4ef91b91a50c54a0dd8ffde4e12e48681565d7999e82c9d9ceb155ca853d34ffe9a8a8f76c8f5aa9e92c534a476cceb5de060fd08de434e354
SSDEEP

12288:+9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hM:KZ1xuVVjfFoynPaVBUR8f+kN10EBe

Score

10^/10

darkcomet hacked evasion persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Hacked

C2

127.0.0.1:1996

Mutex

EXMDUUZQTE

Attributes

InstallPath
IntelUpdate\Intel.exe
gencode
gvuUE7r66tTs
install
true
offline_keylogger
true
persistence
false
reg_key
IntelUpdate

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

Processes:

7d434574ff84cb293111d4ba1b953faa36eb49d8a257539e80b755e3f8fc3224.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Windows\\IntelUpdate\\Intel.exe"	7d434574ff84cb293111d4ba1b953faa36eb49d8a257539e80b755e3f8fc3224.exe

Executes dropped EXE 1 IoCs

Processes:

Intel.exe

pid process

3444 Intel.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

Processes:

attrib.exeattrib.exe

pid process

1980 attrib.exe
1248 attrib.exe

pid	process
3444	Intel.exe

pid	process
1980	attrib.exe
1248	attrib.exe

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

Processes:

7d434574ff84cb293111d4ba1b953faa36eb49d8a257539e80b755e3f8fc3224.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	7d434574ff84cb293111d4ba1b953faa36eb49d8a257539e80b755e3f8fc3224.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

7d434574ff84cb293111d4ba1b953faa36eb49d8a257539e80b755e3f8fc3224.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\IntelUpdate = "C:\\Windows\\IntelUpdate\\Intel.exe"	7d434574ff84cb293111d4ba1b953faa36eb49d8a257539e80b755e3f8fc3224.exe

Drops file in Windows directory 3 IoCs

Processes:

7d434574ff84cb293111d4ba1b953faa36eb49d8a257539e80b755e3f8fc3224.exe

description	ioc	process
File opened for modification	C:\Windows\IntelUpdate\Intel.exe	7d434574ff84cb293111d4ba1b953faa36eb49d8a257539e80b755e3f8fc3224.exe
File opened for modification	C:\Windows\IntelUpdate\	7d434574ff84cb293111d4ba1b953faa36eb49d8a257539e80b755e3f8fc3224.exe
File created	C:\Windows\IntelUpdate\Intel.exe	7d434574ff84cb293111d4ba1b953faa36eb49d8a257539e80b755e3f8fc3224.exe

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

System Information Discovery
T1082

Modifies registry class 1 IoCs

Processes:

7d434574ff84cb293111d4ba1b953faa36eb49d8a257539e80b755e3f8fc3224.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	7d434574ff84cb293111d4ba1b953faa36eb49d8a257539e80b755e3f8fc3224.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Intel.exe

pid process

3444 Intel.exe

pid	process
3444	Intel.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

Processes:

7d434574ff84cb293111d4ba1b953faa36eb49d8a257539e80b755e3f8fc3224.exeIntel.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	1264	7d434574ff84cb293111d4ba1b953faa36eb49d8a257539e80b755e3f8fc3224.exe
Token: SeSecurityPrivilege	1264	7d434574ff84cb293111d4ba1b953faa36eb49d8a257539e80b755e3f8fc3224.exe
Token: SeTakeOwnershipPrivilege	1264	7d434574ff84cb293111d4ba1b953faa36eb49d8a257539e80b755e3f8fc3224.exe
Token: SeLoadDriverPrivilege	1264	7d434574ff84cb293111d4ba1b953faa36eb49d8a257539e80b755e3f8fc3224.exe
Token: SeSystemProfilePrivilege	1264	7d434574ff84cb293111d4ba1b953faa36eb49d8a257539e80b755e3f8fc3224.exe
Token: SeSystemtimePrivilege	1264	7d434574ff84cb293111d4ba1b953faa36eb49d8a257539e80b755e3f8fc3224.exe
Token: SeProfSingleProcessPrivilege	1264	7d434574ff84cb293111d4ba1b953faa36eb49d8a257539e80b755e3f8fc3224.exe
Token: SeIncBasePriorityPrivilege	1264	7d434574ff84cb293111d4ba1b953faa36eb49d8a257539e80b755e3f8fc3224.exe
Token: SeCreatePagefilePrivilege	1264	7d434574ff84cb293111d4ba1b953faa36eb49d8a257539e80b755e3f8fc3224.exe
Token: SeBackupPrivilege	1264	7d434574ff84cb293111d4ba1b953faa36eb49d8a257539e80b755e3f8fc3224.exe
Token: SeRestorePrivilege	1264	7d434574ff84cb293111d4ba1b953faa36eb49d8a257539e80b755e3f8fc3224.exe
Token: SeShutdownPrivilege	1264	7d434574ff84cb293111d4ba1b953faa36eb49d8a257539e80b755e3f8fc3224.exe
Token: SeDebugPrivilege	1264	7d434574ff84cb293111d4ba1b953faa36eb49d8a257539e80b755e3f8fc3224.exe
Token: SeSystemEnvironmentPrivilege	1264	7d434574ff84cb293111d4ba1b953faa36eb49d8a257539e80b755e3f8fc3224.exe
Token: SeChangeNotifyPrivilege	1264	7d434574ff84cb293111d4ba1b953faa36eb49d8a257539e80b755e3f8fc3224.exe
Token: SeRemoteShutdownPrivilege	1264	7d434574ff84cb293111d4ba1b953faa36eb49d8a257539e80b755e3f8fc3224.exe
Token: SeUndockPrivilege	1264	7d434574ff84cb293111d4ba1b953faa36eb49d8a257539e80b755e3f8fc3224.exe
Token: SeManageVolumePrivilege	1264	7d434574ff84cb293111d4ba1b953faa36eb49d8a257539e80b755e3f8fc3224.exe
Token: SeImpersonatePrivilege	1264	7d434574ff84cb293111d4ba1b953faa36eb49d8a257539e80b755e3f8fc3224.exe
Token: SeCreateGlobalPrivilege	1264	7d434574ff84cb293111d4ba1b953faa36eb49d8a257539e80b755e3f8fc3224.exe
Token: 33	1264	7d434574ff84cb293111d4ba1b953faa36eb49d8a257539e80b755e3f8fc3224.exe
Token: 34	1264	7d434574ff84cb293111d4ba1b953faa36eb49d8a257539e80b755e3f8fc3224.exe
Token: 35	1264	7d434574ff84cb293111d4ba1b953faa36eb49d8a257539e80b755e3f8fc3224.exe
Token: 36	1264	7d434574ff84cb293111d4ba1b953faa36eb49d8a257539e80b755e3f8fc3224.exe
Token: SeIncreaseQuotaPrivilege	3444	Intel.exe
Token: SeSecurityPrivilege	3444	Intel.exe
Token: SeTakeOwnershipPrivilege	3444	Intel.exe
Token: SeLoadDriverPrivilege	3444	Intel.exe
Token: SeSystemProfilePrivilege	3444	Intel.exe
Token: SeSystemtimePrivilege	3444	Intel.exe
Token: SeProfSingleProcessPrivilege	3444	Intel.exe
Token: SeIncBasePriorityPrivilege	3444	Intel.exe
Token: SeCreatePagefilePrivilege	3444	Intel.exe
Token: SeBackupPrivilege	3444	Intel.exe
Token: SeRestorePrivilege	3444	Intel.exe
Token: SeShutdownPrivilege	3444	Intel.exe
Token: SeDebugPrivilege	3444	Intel.exe
Token: SeSystemEnvironmentPrivilege	3444	Intel.exe
Token: SeChangeNotifyPrivilege	3444	Intel.exe
Token: SeRemoteShutdownPrivilege	3444	Intel.exe
Token: SeUndockPrivilege	3444	Intel.exe
Token: SeManageVolumePrivilege	3444	Intel.exe
Token: SeImpersonatePrivilege	3444	Intel.exe
Token: SeCreateGlobalPrivilege	3444	Intel.exe
Token: 33	3444	Intel.exe
Token: 34	3444	Intel.exe
Token: 35	3444	Intel.exe
Token: 36	3444	Intel.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

Intel.exe

pid process

3444 Intel.exe

pid	process
3444	Intel.exe

Suspicious use of WriteProcessMemory 54 IoCs

Processes:

7d434574ff84cb293111d4ba1b953faa36eb49d8a257539e80b755e3f8fc3224.execmd.execmd.exeIntel.exe

description	pid	process	target process
PID 1264 wrote to memory of 1580	1264	7d434574ff84cb293111d4ba1b953faa36eb49d8a257539e80b755e3f8fc3224.exe	cmd.exe
PID 1264 wrote to memory of 1580	1264	7d434574ff84cb293111d4ba1b953faa36eb49d8a257539e80b755e3f8fc3224.exe	cmd.exe
PID 1264 wrote to memory of 1580	1264	7d434574ff84cb293111d4ba1b953faa36eb49d8a257539e80b755e3f8fc3224.exe	cmd.exe
PID 1264 wrote to memory of 1776	1264	7d434574ff84cb293111d4ba1b953faa36eb49d8a257539e80b755e3f8fc3224.exe	cmd.exe
PID 1264 wrote to memory of 1776	1264	7d434574ff84cb293111d4ba1b953faa36eb49d8a257539e80b755e3f8fc3224.exe	cmd.exe
PID 1264 wrote to memory of 1776	1264	7d434574ff84cb293111d4ba1b953faa36eb49d8a257539e80b755e3f8fc3224.exe	cmd.exe
PID 1264 wrote to memory of 4676	1264	7d434574ff84cb293111d4ba1b953faa36eb49d8a257539e80b755e3f8fc3224.exe	notepad.exe
PID 1264 wrote to memory of 4676	1264	7d434574ff84cb293111d4ba1b953faa36eb49d8a257539e80b755e3f8fc3224.exe	notepad.exe
PID 1264 wrote to memory of 4676	1264	7d434574ff84cb293111d4ba1b953faa36eb49d8a257539e80b755e3f8fc3224.exe	notepad.exe
PID 1264 wrote to memory of 4676	1264	7d434574ff84cb293111d4ba1b953faa36eb49d8a257539e80b755e3f8fc3224.exe	notepad.exe
PID 1264 wrote to memory of 4676	1264	7d434574ff84cb293111d4ba1b953faa36eb49d8a257539e80b755e3f8fc3224.exe	notepad.exe
PID 1264 wrote to memory of 4676	1264	7d434574ff84cb293111d4ba1b953faa36eb49d8a257539e80b755e3f8fc3224.exe	notepad.exe
PID 1264 wrote to memory of 4676	1264	7d434574ff84cb293111d4ba1b953faa36eb49d8a257539e80b755e3f8fc3224.exe	notepad.exe
PID 1264 wrote to memory of 4676	1264	7d434574ff84cb293111d4ba1b953faa36eb49d8a257539e80b755e3f8fc3224.exe	notepad.exe
PID 1264 wrote to memory of 4676	1264	7d434574ff84cb293111d4ba1b953faa36eb49d8a257539e80b755e3f8fc3224.exe	notepad.exe
PID 1264 wrote to memory of 4676	1264	7d434574ff84cb293111d4ba1b953faa36eb49d8a257539e80b755e3f8fc3224.exe	notepad.exe
PID 1264 wrote to memory of 4676	1264	7d434574ff84cb293111d4ba1b953faa36eb49d8a257539e80b755e3f8fc3224.exe	notepad.exe
PID 1264 wrote to memory of 4676	1264	7d434574ff84cb293111d4ba1b953faa36eb49d8a257539e80b755e3f8fc3224.exe	notepad.exe
PID 1264 wrote to memory of 4676	1264	7d434574ff84cb293111d4ba1b953faa36eb49d8a257539e80b755e3f8fc3224.exe	notepad.exe
PID 1264 wrote to memory of 4676	1264	7d434574ff84cb293111d4ba1b953faa36eb49d8a257539e80b755e3f8fc3224.exe	notepad.exe
PID 1264 wrote to memory of 4676	1264	7d434574ff84cb293111d4ba1b953faa36eb49d8a257539e80b755e3f8fc3224.exe	notepad.exe
PID 1264 wrote to memory of 4676	1264	7d434574ff84cb293111d4ba1b953faa36eb49d8a257539e80b755e3f8fc3224.exe	notepad.exe
PID 1580 wrote to memory of 1248	1580	cmd.exe	attrib.exe
PID 1580 wrote to memory of 1248	1580	cmd.exe	attrib.exe
PID 1580 wrote to memory of 1248	1580	cmd.exe	attrib.exe
PID 1264 wrote to memory of 4676	1264	7d434574ff84cb293111d4ba1b953faa36eb49d8a257539e80b755e3f8fc3224.exe	notepad.exe
PID 1776 wrote to memory of 1980	1776	cmd.exe	attrib.exe
PID 1776 wrote to memory of 1980	1776	cmd.exe	attrib.exe
PID 1776 wrote to memory of 1980	1776	cmd.exe	attrib.exe
PID 1264 wrote to memory of 3444	1264	7d434574ff84cb293111d4ba1b953faa36eb49d8a257539e80b755e3f8fc3224.exe	Intel.exe
PID 1264 wrote to memory of 3444	1264	7d434574ff84cb293111d4ba1b953faa36eb49d8a257539e80b755e3f8fc3224.exe	Intel.exe
PID 1264 wrote to memory of 3444	1264	7d434574ff84cb293111d4ba1b953faa36eb49d8a257539e80b755e3f8fc3224.exe	Intel.exe
PID 3444 wrote to memory of 1796	3444	Intel.exe	notepad.exe
PID 3444 wrote to memory of 1796	3444	Intel.exe	notepad.exe
PID 3444 wrote to memory of 1796	3444	Intel.exe	notepad.exe
PID 3444 wrote to memory of 1796	3444	Intel.exe	notepad.exe
PID 3444 wrote to memory of 1796	3444	Intel.exe	notepad.exe
PID 3444 wrote to memory of 1796	3444	Intel.exe	notepad.exe
PID 3444 wrote to memory of 1796	3444	Intel.exe	notepad.exe
PID 3444 wrote to memory of 1796	3444	Intel.exe	notepad.exe
PID 3444 wrote to memory of 1796	3444	Intel.exe	notepad.exe
PID 3444 wrote to memory of 1796	3444	Intel.exe	notepad.exe
PID 3444 wrote to memory of 1796	3444	Intel.exe	notepad.exe
PID 3444 wrote to memory of 1796	3444	Intel.exe	notepad.exe
PID 3444 wrote to memory of 1796	3444	Intel.exe	notepad.exe
PID 3444 wrote to memory of 1796	3444	Intel.exe	notepad.exe
PID 3444 wrote to memory of 1796	3444	Intel.exe	notepad.exe
PID 3444 wrote to memory of 1796	3444	Intel.exe	notepad.exe
PID 3444 wrote to memory of 1796	3444	Intel.exe	notepad.exe
PID 3444 wrote to memory of 1796	3444	Intel.exe	notepad.exe
PID 3444 wrote to memory of 1796	3444	Intel.exe	notepad.exe
PID 3444 wrote to memory of 1796	3444	Intel.exe	notepad.exe
PID 3444 wrote to memory of 1796	3444	Intel.exe	notepad.exe
PID 3444 wrote to memory of 1796	3444	Intel.exe	notepad.exe

Views/modifies file attributes 1 TTPs 2 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exeattrib.exe

pid process

1980 attrib.exe
1248 attrib.exe

pid	process
1980	attrib.exe
1248	attrib.exe

C:\Users\Admin\AppData\Local\Temp\7d434574ff84cb293111d4ba1b953faa36eb49d8a257539e80b755e3f8fc3224.exe
"C:\Users\Admin\AppData\Local\Temp\7d434574ff84cb293111d4ba1b953faa36eb49d8a257539e80b755e3f8fc3224.exe"
1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Adds Run key to start application
- Drops file in Windows directory
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1264

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\7d434574ff84cb293111d4ba1b953faa36eb49d8a257539e80b755e3f8fc3224.exe" +s +h
2⤵
- Suspicious use of WriteProcessMemory
PID:1580

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp\7d434574ff84cb293111d4ba1b953faa36eb49d8a257539e80b755e3f8fc3224.exe" +s +h
3⤵
- Sets file to hidden
- Views/modifies file attributes
PID:1248

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:1776

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
3⤵
- Sets file to hidden
- Views/modifies file attributes
PID:1980

C:\Windows\SysWOW64\notepad.exe
notepad
2⤵
PID:4676

C:\Windows\IntelUpdate\Intel.exe
"C:\Windows\IntelUpdate\Intel.exe"
2⤵
- Executes dropped EXE
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3444

C:\Windows\SysWOW64\notepad.exe
notepad
3⤵
PID:1796

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1

T1004

Hidden Files and Directories

2

T1158

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Hidden Files and Directories

2

T1158

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Windows\IntelUpdate\Intel.exe
Filesize
658KB

MD5
6d2af3af93fbb8e1fd8cbfde6fb810c0

SHA1
aa0574609abf1acd8a7e27396548f32e6aac52d7

SHA256
7d434574ff84cb293111d4ba1b953faa36eb49d8a257539e80b755e3f8fc3224

SHA512
08feaec307d69c4ef91b91a50c54a0dd8ffde4e12e48681565d7999e82c9d9ceb155ca853d34ffe9a8a8f76c8f5aa9e92c534a476cceb5de060fd08de434e354

Download Submit
C:\Windows\IntelUpdate\Intel.exe
Filesize
658KB

MD5
6d2af3af93fbb8e1fd8cbfde6fb810c0

SHA1
aa0574609abf1acd8a7e27396548f32e6aac52d7

SHA256
7d434574ff84cb293111d4ba1b953faa36eb49d8a257539e80b755e3f8fc3224

SHA512
08feaec307d69c4ef91b91a50c54a0dd8ffde4e12e48681565d7999e82c9d9ceb155ca853d34ffe9a8a8f76c8f5aa9e92c534a476cceb5de060fd08de434e354

Download Submit
memory/1248-135-0x0000000000000000-mapping.dmp

Download
memory/1580-132-0x0000000000000000-mapping.dmp

Download
memory/1776-133-0x0000000000000000-mapping.dmp

Download
memory/1796-140-0x0000000000000000-mapping.dmp

Download
memory/1980-136-0x0000000000000000-mapping.dmp

Download
memory/3444-137-0x0000000000000000-mapping.dmp

Download
memory/4676-134-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads