darkcomet | 8889fcdf809af0798c84c0e94bd7643a6b3d4fe40c6c99702a787617fb816cf9

General

Target

8889fcdf809af0798c84c0e94bd7643a6b3d4fe40c6c99702a787617fb816cf9.exe
Size

520KB
MD5

d683b4b96582e58a06ddc15284ea35c8
SHA1

2a9902159d8dabec02f9ee13e791fa298290fc81
SHA256

8889fcdf809af0798c84c0e94bd7643a6b3d4fe40c6c99702a787617fb816cf9
SHA512

a56674362d15ed66335b0a54449a658503a4346e58a066197c5665ab48da952b3c8bd3dc49cd0dee30b04208e7f97085ae74e332499f307700353de298331a19

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

1512 winupd.exe
1632 winupd.exe
1516 winupd.exe

pid	process
1512	winupd.exe
1632	winupd.exe
1516	winupd.exe

UPX packed file 2 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/1516-74-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/1516-84-0x0000000000400000-0x00000000004B7000-memory.dmp	upx

Loads dropped DLL 2 IoCs

Processes:

8889fcdf809af0798c84c0e94bd7643a6b3d4fe40c6c99702a787617fb816cf9.exe

pid	process
2004	8889fcdf809af0798c84c0e94bd7643a6b3d4fe40c6c99702a787617fb816cf9.exe
2004	8889fcdf809af0798c84c0e94bd7643a6b3d4fe40c6c99702a787617fb816cf9.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-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Windows\CurrentVersion\Run	reg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Windows\CurrentVersion\Run\WinUpdate = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\winupd.exe -notray"	reg.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

8889fcdf809af0798c84c0e94bd7643a6b3d4fe40c6c99702a787617fb816cf9.exewinupd.exe

description	pid	process	target process
PID 2008 set thread context of 2004	2008	8889fcdf809af0798c84c0e94bd7643a6b3d4fe40c6c99702a787617fb816cf9.exe	8889fcdf809af0798c84c0e94bd7643a6b3d4fe40c6c99702a787617fb816cf9.exe
PID 1512 set thread context of 1632	1512	winupd.exe	winupd.exe
PID 1512 set thread context of 1516	1512	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

1688 ipconfig.exe
Modifies registry key 1 TTPs 1 IoCs

Modify Registry
T1112

Processes:

reg.exe

pid process

552 reg.exe

pid	process
1688	ipconfig.exe

pid	process
552	reg.exe

Suspicious use of AdjustPrivilegeToken 23 IoCs

Processes:

winupd.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	1516	winupd.exe
Token: SeSecurityPrivilege	1516	winupd.exe
Token: SeTakeOwnershipPrivilege	1516	winupd.exe
Token: SeLoadDriverPrivilege	1516	winupd.exe
Token: SeSystemProfilePrivilege	1516	winupd.exe
Token: SeSystemtimePrivilege	1516	winupd.exe
Token: SeProfSingleProcessPrivilege	1516	winupd.exe
Token: SeIncBasePriorityPrivilege	1516	winupd.exe
Token: SeCreatePagefilePrivilege	1516	winupd.exe
Token: SeBackupPrivilege	1516	winupd.exe
Token: SeRestorePrivilege	1516	winupd.exe
Token: SeShutdownPrivilege	1516	winupd.exe
Token: SeDebugPrivilege	1516	winupd.exe
Token: SeSystemEnvironmentPrivilege	1516	winupd.exe
Token: SeChangeNotifyPrivilege	1516	winupd.exe
Token: SeRemoteShutdownPrivilege	1516	winupd.exe
Token: SeUndockPrivilege	1516	winupd.exe
Token: SeManageVolumePrivilege	1516	winupd.exe
Token: SeImpersonatePrivilege	1516	winupd.exe
Token: SeCreateGlobalPrivilege	1516	winupd.exe
Token: 33	1516	winupd.exe
Token: 34	1516	winupd.exe
Token: 35	1516	winupd.exe

Suspicious use of SetWindowsHookEx 5 IoCs

Processes:

8889fcdf809af0798c84c0e94bd7643a6b3d4fe40c6c99702a787617fb816cf9.exe8889fcdf809af0798c84c0e94bd7643a6b3d4fe40c6c99702a787617fb816cf9.exewinupd.exewinupd.exewinupd.exe

pid	process
2008	8889fcdf809af0798c84c0e94bd7643a6b3d4fe40c6c99702a787617fb816cf9.exe
2004	8889fcdf809af0798c84c0e94bd7643a6b3d4fe40c6c99702a787617fb816cf9.exe
1512	winupd.exe
1632	winupd.exe
1516	winupd.exe

Suspicious use of WriteProcessMemory 44 IoCs

Processes:

8889fcdf809af0798c84c0e94bd7643a6b3d4fe40c6c99702a787617fb816cf9.exe8889fcdf809af0798c84c0e94bd7643a6b3d4fe40c6c99702a787617fb816cf9.exewinupd.exewinupd.exeipconfig.execmd.exe

description	pid	process	target process
PID 2008 wrote to memory of 2004	2008	8889fcdf809af0798c84c0e94bd7643a6b3d4fe40c6c99702a787617fb816cf9.exe	8889fcdf809af0798c84c0e94bd7643a6b3d4fe40c6c99702a787617fb816cf9.exe
PID 2008 wrote to memory of 2004	2008	8889fcdf809af0798c84c0e94bd7643a6b3d4fe40c6c99702a787617fb816cf9.exe	8889fcdf809af0798c84c0e94bd7643a6b3d4fe40c6c99702a787617fb816cf9.exe
PID 2008 wrote to memory of 2004	2008	8889fcdf809af0798c84c0e94bd7643a6b3d4fe40c6c99702a787617fb816cf9.exe	8889fcdf809af0798c84c0e94bd7643a6b3d4fe40c6c99702a787617fb816cf9.exe
PID 2008 wrote to memory of 2004	2008	8889fcdf809af0798c84c0e94bd7643a6b3d4fe40c6c99702a787617fb816cf9.exe	8889fcdf809af0798c84c0e94bd7643a6b3d4fe40c6c99702a787617fb816cf9.exe
PID 2008 wrote to memory of 2004	2008	8889fcdf809af0798c84c0e94bd7643a6b3d4fe40c6c99702a787617fb816cf9.exe	8889fcdf809af0798c84c0e94bd7643a6b3d4fe40c6c99702a787617fb816cf9.exe
PID 2008 wrote to memory of 2004	2008	8889fcdf809af0798c84c0e94bd7643a6b3d4fe40c6c99702a787617fb816cf9.exe	8889fcdf809af0798c84c0e94bd7643a6b3d4fe40c6c99702a787617fb816cf9.exe
PID 2008 wrote to memory of 2004	2008	8889fcdf809af0798c84c0e94bd7643a6b3d4fe40c6c99702a787617fb816cf9.exe	8889fcdf809af0798c84c0e94bd7643a6b3d4fe40c6c99702a787617fb816cf9.exe
PID 2008 wrote to memory of 2004	2008	8889fcdf809af0798c84c0e94bd7643a6b3d4fe40c6c99702a787617fb816cf9.exe	8889fcdf809af0798c84c0e94bd7643a6b3d4fe40c6c99702a787617fb816cf9.exe
PID 2008 wrote to memory of 2004	2008	8889fcdf809af0798c84c0e94bd7643a6b3d4fe40c6c99702a787617fb816cf9.exe	8889fcdf809af0798c84c0e94bd7643a6b3d4fe40c6c99702a787617fb816cf9.exe
PID 2004 wrote to memory of 1512	2004	8889fcdf809af0798c84c0e94bd7643a6b3d4fe40c6c99702a787617fb816cf9.exe	winupd.exe
PID 2004 wrote to memory of 1512	2004	8889fcdf809af0798c84c0e94bd7643a6b3d4fe40c6c99702a787617fb816cf9.exe	winupd.exe
PID 2004 wrote to memory of 1512	2004	8889fcdf809af0798c84c0e94bd7643a6b3d4fe40c6c99702a787617fb816cf9.exe	winupd.exe
PID 2004 wrote to memory of 1512	2004	8889fcdf809af0798c84c0e94bd7643a6b3d4fe40c6c99702a787617fb816cf9.exe	winupd.exe
PID 1512 wrote to memory of 1632	1512	winupd.exe	winupd.exe
PID 1512 wrote to memory of 1632	1512	winupd.exe	winupd.exe
PID 1512 wrote to memory of 1632	1512	winupd.exe	winupd.exe
PID 1512 wrote to memory of 1632	1512	winupd.exe	winupd.exe
PID 1512 wrote to memory of 1632	1512	winupd.exe	winupd.exe
PID 1512 wrote to memory of 1632	1512	winupd.exe	winupd.exe
PID 1512 wrote to memory of 1632	1512	winupd.exe	winupd.exe
PID 1512 wrote to memory of 1632	1512	winupd.exe	winupd.exe
PID 1512 wrote to memory of 1632	1512	winupd.exe	winupd.exe
PID 1512 wrote to memory of 1516	1512	winupd.exe	winupd.exe
PID 1512 wrote to memory of 1516	1512	winupd.exe	winupd.exe
PID 1512 wrote to memory of 1516	1512	winupd.exe	winupd.exe
PID 1512 wrote to memory of 1516	1512	winupd.exe	winupd.exe
PID 1512 wrote to memory of 1516	1512	winupd.exe	winupd.exe
PID 1512 wrote to memory of 1516	1512	winupd.exe	winupd.exe
PID 1512 wrote to memory of 1516	1512	winupd.exe	winupd.exe
PID 1512 wrote to memory of 1516	1512	winupd.exe	winupd.exe
PID 1632 wrote to memory of 1688	1632	winupd.exe	ipconfig.exe
PID 1632 wrote to memory of 1688	1632	winupd.exe	ipconfig.exe
PID 1632 wrote to memory of 1688	1632	winupd.exe	ipconfig.exe
PID 1632 wrote to memory of 1688	1632	winupd.exe	ipconfig.exe
PID 1632 wrote to memory of 1688	1632	winupd.exe	ipconfig.exe
PID 1632 wrote to memory of 1688	1632	winupd.exe	ipconfig.exe
PID 1688 wrote to memory of 1576	1688	ipconfig.exe	cmd.exe
PID 1688 wrote to memory of 1576	1688	ipconfig.exe	cmd.exe
PID 1688 wrote to memory of 1576	1688	ipconfig.exe	cmd.exe
PID 1688 wrote to memory of 1576	1688	ipconfig.exe	cmd.exe
PID 1576 wrote to memory of 552	1576	cmd.exe	reg.exe
PID 1576 wrote to memory of 552	1576	cmd.exe	reg.exe
PID 1576 wrote to memory of 552	1576	cmd.exe	reg.exe
PID 1576 wrote to memory of 552	1576	cmd.exe	reg.exe

C:\Users\Admin\AppData\Local\Temp\8889fcdf809af0798c84c0e94bd7643a6b3d4fe40c6c99702a787617fb816cf9.exe
"C:\Users\Admin\AppData\Local\Temp\8889fcdf809af0798c84c0e94bd7643a6b3d4fe40c6c99702a787617fb816cf9.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2008

C:\Users\Admin\AppData\Local\Temp\8889fcdf809af0798c84c0e94bd7643a6b3d4fe40c6c99702a787617fb816cf9.exe
"C:\Users\Admin\AppData\Local\Temp\8889fcdf809af0798c84c0e94bd7643a6b3d4fe40c6c99702a787617fb816cf9.exe"
2⤵
- Loads dropped DLL
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2004

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:1512

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:1632

C:\Windows\SysWOW64\ipconfig.exe
"C:\Windows\system32\ipconfig.exe"
5⤵
- Gathers network information
- Suspicious use of WriteProcessMemory
PID:1688

C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\JFTRHSLJ.bat" "
6⤵
- Suspicious use of WriteProcessMemory
PID:1576

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:552

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:1516

Network

MITRE ATT&CK Enterprise 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

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\JFTRHSLJ.bat

MD5
cac890d00365d07b9ca89def17cc3a36

SHA1
6fa99679ede791c16b5d3e6d243a98e8bbdb7eab

SHA256
4f98ddee89760080a5c8a93666d2f5c97be52b741265ef4d1ce9aaebf05f12da

SHA512
124dc0b18e13425bde43bcbbe2a99005928e398bffcb458d498aac9e754bc5b92b703270667800876c60b0801343f2de8c6b9a1eebafd80bb4f6d5dc295dd9f1

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

MD5
d25b7d3595cce7146df6db3b9ff9e4de

SHA1
afafc1eabfeeea4d4ed17beb4b8dc66a17f021fd

SHA256
0b4c6938cc209e20af9c4d907fe0d6c4a612dfda584ffa951960dbb1890a4d4d

SHA512
fa43f3123eab18f76f9851e203daff15ec4af50548564fc354a8a6064635b63aad79de6ec18273f8498134d2390c9ac931e684cb2415cf4326879d7500724df0

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

MD5
d25b7d3595cce7146df6db3b9ff9e4de

SHA1
afafc1eabfeeea4d4ed17beb4b8dc66a17f021fd

SHA256
0b4c6938cc209e20af9c4d907fe0d6c4a612dfda584ffa951960dbb1890a4d4d

SHA512
fa43f3123eab18f76f9851e203daff15ec4af50548564fc354a8a6064635b63aad79de6ec18273f8498134d2390c9ac931e684cb2415cf4326879d7500724df0

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

MD5
d25b7d3595cce7146df6db3b9ff9e4de

SHA1
afafc1eabfeeea4d4ed17beb4b8dc66a17f021fd

SHA256
0b4c6938cc209e20af9c4d907fe0d6c4a612dfda584ffa951960dbb1890a4d4d

SHA512
fa43f3123eab18f76f9851e203daff15ec4af50548564fc354a8a6064635b63aad79de6ec18273f8498134d2390c9ac931e684cb2415cf4326879d7500724df0

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

MD5
d25b7d3595cce7146df6db3b9ff9e4de

SHA1
afafc1eabfeeea4d4ed17beb4b8dc66a17f021fd

SHA256
0b4c6938cc209e20af9c4d907fe0d6c4a612dfda584ffa951960dbb1890a4d4d

SHA512
fa43f3123eab18f76f9851e203daff15ec4af50548564fc354a8a6064635b63aad79de6ec18273f8498134d2390c9ac931e684cb2415cf4326879d7500724df0

Download Submit
\Users\Admin\AppData\Roaming\Microsoft\winupd.exe

MD5
d25b7d3595cce7146df6db3b9ff9e4de

SHA1
afafc1eabfeeea4d4ed17beb4b8dc66a17f021fd

SHA256
0b4c6938cc209e20af9c4d907fe0d6c4a612dfda584ffa951960dbb1890a4d4d

SHA512
fa43f3123eab18f76f9851e203daff15ec4af50548564fc354a8a6064635b63aad79de6ec18273f8498134d2390c9ac931e684cb2415cf4326879d7500724df0

Download Submit
\Users\Admin\AppData\Roaming\Microsoft\winupd.exe

MD5
d25b7d3595cce7146df6db3b9ff9e4de

SHA1
afafc1eabfeeea4d4ed17beb4b8dc66a17f021fd

SHA256
0b4c6938cc209e20af9c4d907fe0d6c4a612dfda584ffa951960dbb1890a4d4d

SHA512
fa43f3123eab18f76f9851e203daff15ec4af50548564fc354a8a6064635b63aad79de6ec18273f8498134d2390c9ac931e684cb2415cf4326879d7500724df0

Download Submit
memory/552-87-0x0000000000000000-mapping.dmp

Download
memory/1512-66-0x0000000000000000-mapping.dmp

Download
memory/1516-84-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1516-74-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1516-76-0x00000000004B5670-mapping.dmp

Download
memory/1516-85-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/1576-86-0x0000000000000000-mapping.dmp

Download
memory/1632-72-0x000000000040140C-mapping.dmp

Download
memory/1688-81-0x0000000000000000-mapping.dmp

Download
memory/2004-60-0x0000000075FA1000-0x0000000075FA3000-memory.dmp

Filesize
8KB

Download
memory/2004-56-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2004-57-0x000000000040140C-mapping.dmp

Download
memory/2008-62-0x00000000003F0000-0x00000000003F2000-memory.dmp

Filesize
8KB

Download
memory/2008-61-0x0000000000250000-0x0000000000252000-memory.dmp

Filesize
8KB

Download
memory/2008-63-0x0000000001E10000-0x0000000001E12000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads