darkcomet | 735d4dea1378e1735df51023397ba337eb72d3fc9ec806f04d47b182ba4b4779

General

Target

735d4dea1378e1735df51023397ba337eb72d3fc9ec806f04d47b182ba4b4779.exe
Size

520KB
MD5

2fc861e62742e8c9e534979d1aa3db9e
SHA1

195d8fcf006e93b5c46b3a4ce4d3d12d62818201
SHA256

735d4dea1378e1735df51023397ba337eb72d3fc9ec806f04d47b182ba4b4779
SHA512

b299df8b0b18940f66e50ad17a30f779e2bbfd92781d7d9acc5d91522880b9d407a1d7952ebfdd92954df7187683e87b3eb81eb8d8a440d24cf39b0330039f62

Score

10^/10

darkcomet persistence rat trojan upx

Malware Config

Signatures

Darkcomet
DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.
trojan rat darkcomet
Executes dropped EXE 3 IoCs

Processes:

winupd.exewinupd.exewinupd.exe

pid process

2032 winupd.exe
1252 winupd.exe
2016 winupd.exe

pid	process
2032	winupd.exe
1252	winupd.exe
2016	winupd.exe

UPX packed file 2 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/2016-80-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2016-88-0x0000000000400000-0x00000000004B7000-memory.dmp	upx

Loads dropped DLL 2 IoCs

Processes:

735d4dea1378e1735df51023397ba337eb72d3fc9ec806f04d47b182ba4b4779.exe

pid	process
1328	735d4dea1378e1735df51023397ba337eb72d3fc9ec806f04d47b182ba4b4779.exe
1328	735d4dea1378e1735df51023397ba337eb72d3fc9ec806f04d47b182ba4b4779.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

reg.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Windows\CurrentVersion\Run	reg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Windows\CurrentVersion\Run\WinUpdate = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\winupd.exe -notray"	reg.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

735d4dea1378e1735df51023397ba337eb72d3fc9ec806f04d47b182ba4b4779.exewinupd.exe

description	pid	process	target process
PID 1528 set thread context of 1328	1528	735d4dea1378e1735df51023397ba337eb72d3fc9ec806f04d47b182ba4b4779.exe	735d4dea1378e1735df51023397ba337eb72d3fc9ec806f04d47b182ba4b4779.exe
PID 2032 set thread context of 1252	2032	winupd.exe	winupd.exe
PID 2032 set thread context of 2016	2032	winupd.exe	winupd.exe

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

System Information Discovery
T1082
Gathers network information 2 TTPs 1 IoCs
Uses commandline utility to view network configuration.

System Information Discovery
T1082

Command-Line Interface
T1059

Processes:

ipconfig.exe

pid process

1944 ipconfig.exe
Modifies registry key 1 TTPs 1 IoCs

Modify Registry
T1112

Processes:

reg.exe

pid process

1428 reg.exe

pid	process
1944	ipconfig.exe

pid	process
1428	reg.exe

Suspicious use of AdjustPrivilegeToken 23 IoCs

Processes:

winupd.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	2016	winupd.exe
Token: SeSecurityPrivilege	2016	winupd.exe
Token: SeTakeOwnershipPrivilege	2016	winupd.exe
Token: SeLoadDriverPrivilege	2016	winupd.exe
Token: SeSystemProfilePrivilege	2016	winupd.exe
Token: SeSystemtimePrivilege	2016	winupd.exe
Token: SeProfSingleProcessPrivilege	2016	winupd.exe
Token: SeIncBasePriorityPrivilege	2016	winupd.exe
Token: SeCreatePagefilePrivilege	2016	winupd.exe
Token: SeBackupPrivilege	2016	winupd.exe
Token: SeRestorePrivilege	2016	winupd.exe
Token: SeShutdownPrivilege	2016	winupd.exe
Token: SeDebugPrivilege	2016	winupd.exe
Token: SeSystemEnvironmentPrivilege	2016	winupd.exe
Token: SeChangeNotifyPrivilege	2016	winupd.exe
Token: SeRemoteShutdownPrivilege	2016	winupd.exe
Token: SeUndockPrivilege	2016	winupd.exe
Token: SeManageVolumePrivilege	2016	winupd.exe
Token: SeImpersonatePrivilege	2016	winupd.exe
Token: SeCreateGlobalPrivilege	2016	winupd.exe
Token: 33	2016	winupd.exe
Token: 34	2016	winupd.exe
Token: 35	2016	winupd.exe

Suspicious use of SetWindowsHookEx 5 IoCs

Processes:

735d4dea1378e1735df51023397ba337eb72d3fc9ec806f04d47b182ba4b4779.exe735d4dea1378e1735df51023397ba337eb72d3fc9ec806f04d47b182ba4b4779.exewinupd.exewinupd.exewinupd.exe

pid	process
1528	735d4dea1378e1735df51023397ba337eb72d3fc9ec806f04d47b182ba4b4779.exe
1328	735d4dea1378e1735df51023397ba337eb72d3fc9ec806f04d47b182ba4b4779.exe
2032	winupd.exe
1252	winupd.exe
2016	winupd.exe

Suspicious use of WriteProcessMemory 44 IoCs

Processes:

735d4dea1378e1735df51023397ba337eb72d3fc9ec806f04d47b182ba4b4779.exe735d4dea1378e1735df51023397ba337eb72d3fc9ec806f04d47b182ba4b4779.exewinupd.exewinupd.exeipconfig.execmd.exe

description	pid	process	target process
PID 1528 wrote to memory of 1328	1528	735d4dea1378e1735df51023397ba337eb72d3fc9ec806f04d47b182ba4b4779.exe	735d4dea1378e1735df51023397ba337eb72d3fc9ec806f04d47b182ba4b4779.exe
PID 1528 wrote to memory of 1328	1528	735d4dea1378e1735df51023397ba337eb72d3fc9ec806f04d47b182ba4b4779.exe	735d4dea1378e1735df51023397ba337eb72d3fc9ec806f04d47b182ba4b4779.exe
PID 1528 wrote to memory of 1328	1528	735d4dea1378e1735df51023397ba337eb72d3fc9ec806f04d47b182ba4b4779.exe	735d4dea1378e1735df51023397ba337eb72d3fc9ec806f04d47b182ba4b4779.exe
PID 1528 wrote to memory of 1328	1528	735d4dea1378e1735df51023397ba337eb72d3fc9ec806f04d47b182ba4b4779.exe	735d4dea1378e1735df51023397ba337eb72d3fc9ec806f04d47b182ba4b4779.exe
PID 1528 wrote to memory of 1328	1528	735d4dea1378e1735df51023397ba337eb72d3fc9ec806f04d47b182ba4b4779.exe	735d4dea1378e1735df51023397ba337eb72d3fc9ec806f04d47b182ba4b4779.exe
PID 1528 wrote to memory of 1328	1528	735d4dea1378e1735df51023397ba337eb72d3fc9ec806f04d47b182ba4b4779.exe	735d4dea1378e1735df51023397ba337eb72d3fc9ec806f04d47b182ba4b4779.exe
PID 1528 wrote to memory of 1328	1528	735d4dea1378e1735df51023397ba337eb72d3fc9ec806f04d47b182ba4b4779.exe	735d4dea1378e1735df51023397ba337eb72d3fc9ec806f04d47b182ba4b4779.exe
PID 1528 wrote to memory of 1328	1528	735d4dea1378e1735df51023397ba337eb72d3fc9ec806f04d47b182ba4b4779.exe	735d4dea1378e1735df51023397ba337eb72d3fc9ec806f04d47b182ba4b4779.exe
PID 1528 wrote to memory of 1328	1528	735d4dea1378e1735df51023397ba337eb72d3fc9ec806f04d47b182ba4b4779.exe	735d4dea1378e1735df51023397ba337eb72d3fc9ec806f04d47b182ba4b4779.exe
PID 1328 wrote to memory of 2032	1328	735d4dea1378e1735df51023397ba337eb72d3fc9ec806f04d47b182ba4b4779.exe	winupd.exe
PID 1328 wrote to memory of 2032	1328	735d4dea1378e1735df51023397ba337eb72d3fc9ec806f04d47b182ba4b4779.exe	winupd.exe
PID 1328 wrote to memory of 2032	1328	735d4dea1378e1735df51023397ba337eb72d3fc9ec806f04d47b182ba4b4779.exe	winupd.exe
PID 1328 wrote to memory of 2032	1328	735d4dea1378e1735df51023397ba337eb72d3fc9ec806f04d47b182ba4b4779.exe	winupd.exe
PID 2032 wrote to memory of 1252	2032	winupd.exe	winupd.exe
PID 2032 wrote to memory of 1252	2032	winupd.exe	winupd.exe
PID 2032 wrote to memory of 1252	2032	winupd.exe	winupd.exe
PID 2032 wrote to memory of 1252	2032	winupd.exe	winupd.exe
PID 2032 wrote to memory of 1252	2032	winupd.exe	winupd.exe
PID 2032 wrote to memory of 1252	2032	winupd.exe	winupd.exe
PID 2032 wrote to memory of 1252	2032	winupd.exe	winupd.exe
PID 2032 wrote to memory of 1252	2032	winupd.exe	winupd.exe
PID 2032 wrote to memory of 1252	2032	winupd.exe	winupd.exe
PID 2032 wrote to memory of 2016	2032	winupd.exe	winupd.exe
PID 2032 wrote to memory of 2016	2032	winupd.exe	winupd.exe
PID 2032 wrote to memory of 2016	2032	winupd.exe	winupd.exe
PID 2032 wrote to memory of 2016	2032	winupd.exe	winupd.exe
PID 2032 wrote to memory of 2016	2032	winupd.exe	winupd.exe
PID 2032 wrote to memory of 2016	2032	winupd.exe	winupd.exe
PID 2032 wrote to memory of 2016	2032	winupd.exe	winupd.exe
PID 2032 wrote to memory of 2016	2032	winupd.exe	winupd.exe
PID 1252 wrote to memory of 1944	1252	winupd.exe	ipconfig.exe
PID 1252 wrote to memory of 1944	1252	winupd.exe	ipconfig.exe
PID 1252 wrote to memory of 1944	1252	winupd.exe	ipconfig.exe
PID 1252 wrote to memory of 1944	1252	winupd.exe	ipconfig.exe
PID 1252 wrote to memory of 1944	1252	winupd.exe	ipconfig.exe
PID 1252 wrote to memory of 1944	1252	winupd.exe	ipconfig.exe
PID 1944 wrote to memory of 1756	1944	ipconfig.exe	cmd.exe
PID 1944 wrote to memory of 1756	1944	ipconfig.exe	cmd.exe
PID 1944 wrote to memory of 1756	1944	ipconfig.exe	cmd.exe
PID 1944 wrote to memory of 1756	1944	ipconfig.exe	cmd.exe
PID 1756 wrote to memory of 1428	1756	cmd.exe	reg.exe
PID 1756 wrote to memory of 1428	1756	cmd.exe	reg.exe
PID 1756 wrote to memory of 1428	1756	cmd.exe	reg.exe
PID 1756 wrote to memory of 1428	1756	cmd.exe	reg.exe

C:\Users\Admin\AppData\Local\Temp\735d4dea1378e1735df51023397ba337eb72d3fc9ec806f04d47b182ba4b4779.exe
"C:\Users\Admin\AppData\Local\Temp\735d4dea1378e1735df51023397ba337eb72d3fc9ec806f04d47b182ba4b4779.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1528

C:\Users\Admin\AppData\Local\Temp\735d4dea1378e1735df51023397ba337eb72d3fc9ec806f04d47b182ba4b4779.exe
"C:\Users\Admin\AppData\Local\Temp\735d4dea1378e1735df51023397ba337eb72d3fc9ec806f04d47b182ba4b4779.exe"
2⤵
- Loads dropped DLL
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1328

C:\Users\Admin\AppData\Roaming\Microsoft\winupd.exe
C:\Users\Admin\AppData\Roaming\Microsoft\winupd.exe -notray
3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2032

C:\Users\Admin\AppData\Roaming\Microsoft\winupd.exe
"C:\Users\Admin\AppData\Roaming\Microsoft\winupd.exe"
4⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1252

C:\Windows\SysWOW64\ipconfig.exe
"C:\Windows\system32\ipconfig.exe"
5⤵
- Gathers network information
- Suspicious use of WriteProcessMemory
PID:1944

C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\MIWULVON.bat" "
6⤵
- Suspicious use of WriteProcessMemory
PID:1756

C:\Windows\SysWOW64\reg.exe
REG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v WinUpdate /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Microsoft\winupd.exe -notray" /f
7⤵
- Adds Run key to start application
- Modifies registry key
PID:1428

C:\Users\Admin\AppData\Roaming\Microsoft\winupd.exe
"C:\Users\Admin\AppData\Roaming\Microsoft\winupd.exe"
4⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:2016

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Command-Line Interface

1

T1059

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\MIWULVON.bat
MD5
cac890d00365d07b9ca89def17cc3a36

SHA1
6fa99679ede791c16b5d3e6d243a98e8bbdb7eab

SHA256
4f98ddee89760080a5c8a93666d2f5c97be52b741265ef4d1ce9aaebf05f12da

SHA512
124dc0b18e13425bde43bcbbe2a99005928e398bffcb458d498aac9e754bc5b92b703270667800876c60b0801343f2de8c6b9a1eebafd80bb4f6d5dc295dd9f1

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\winupd.exe
MD5
7777032ccffb4c38685fea6400716a58

SHA1
b1edb664fe6a90f8973cc01c23c364e4ca5edc76

SHA256
e803a733db95da5f53d690a7b83f1e789863ef693161af3ddf83a590e27160b2

SHA512
4348cd36c5d410d4179a88a15297a47824dafd4c2cb03b7f2b1baf1560e2e409716446db3d83029dd289a26dc07f51bca66a6e97f8492115ff27f36f0aa780af

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\winupd.exe
MD5
7777032ccffb4c38685fea6400716a58

SHA1
b1edb664fe6a90f8973cc01c23c364e4ca5edc76

SHA256
e803a733db95da5f53d690a7b83f1e789863ef693161af3ddf83a590e27160b2

SHA512
4348cd36c5d410d4179a88a15297a47824dafd4c2cb03b7f2b1baf1560e2e409716446db3d83029dd289a26dc07f51bca66a6e97f8492115ff27f36f0aa780af

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\winupd.exe
MD5
7777032ccffb4c38685fea6400716a58

SHA1
b1edb664fe6a90f8973cc01c23c364e4ca5edc76

SHA256
e803a733db95da5f53d690a7b83f1e789863ef693161af3ddf83a590e27160b2

SHA512
4348cd36c5d410d4179a88a15297a47824dafd4c2cb03b7f2b1baf1560e2e409716446db3d83029dd289a26dc07f51bca66a6e97f8492115ff27f36f0aa780af

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\winupd.exe
MD5
7777032ccffb4c38685fea6400716a58

SHA1
b1edb664fe6a90f8973cc01c23c364e4ca5edc76

SHA256
e803a733db95da5f53d690a7b83f1e789863ef693161af3ddf83a590e27160b2

SHA512
4348cd36c5d410d4179a88a15297a47824dafd4c2cb03b7f2b1baf1560e2e409716446db3d83029dd289a26dc07f51bca66a6e97f8492115ff27f36f0aa780af

Download Submit
\Users\Admin\AppData\Roaming\Microsoft\winupd.exe
MD5
7777032ccffb4c38685fea6400716a58

SHA1
b1edb664fe6a90f8973cc01c23c364e4ca5edc76

SHA256
e803a733db95da5f53d690a7b83f1e789863ef693161af3ddf83a590e27160b2

SHA512
4348cd36c5d410d4179a88a15297a47824dafd4c2cb03b7f2b1baf1560e2e409716446db3d83029dd289a26dc07f51bca66a6e97f8492115ff27f36f0aa780af

Download Submit
\Users\Admin\AppData\Roaming\Microsoft\winupd.exe
MD5
7777032ccffb4c38685fea6400716a58

SHA1
b1edb664fe6a90f8973cc01c23c364e4ca5edc76

SHA256
e803a733db95da5f53d690a7b83f1e789863ef693161af3ddf83a590e27160b2

SHA512
4348cd36c5d410d4179a88a15297a47824dafd4c2cb03b7f2b1baf1560e2e409716446db3d83029dd289a26dc07f51bca66a6e97f8492115ff27f36f0aa780af

Download Submit
memory/1252-78-0x000000000040140C-mapping.dmp

Download
memory/1328-63-0x000000000040140C-mapping.dmp

Download
memory/1328-66-0x0000000075801000-0x0000000075803000-memory.dmp

Filesize
8KB

Download
memory/1328-62-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/1428-93-0x0000000000000000-mapping.dmp

Download
memory/1528-67-0x0000000000250000-0x0000000000252000-memory.dmp

Filesize
8KB

Download
memory/1528-68-0x0000000000330000-0x0000000000332000-memory.dmp

Filesize
8KB

Download
memory/1528-69-0x00000000003D0000-0x00000000003D2000-memory.dmp

Filesize
8KB

Download
memory/1756-92-0x0000000000000000-mapping.dmp

Download
memory/1944-87-0x0000000000000000-mapping.dmp

Download
memory/2016-82-0x00000000004B5670-mapping.dmp

Download
memory/2016-89-0x00000000003D0000-0x00000000003D1000-memory.dmp

Filesize
4KB

Download
memory/2016-88-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2016-80-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2032-72-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads