darkcomet | 5f02339f6ea514c24162fc3b22dc7fbd86a0166944280195cb931b00a39656ea

General

Target

5f02339f6ea514c24162fc3b22dc7fbd86a0166944280195cb931b00a39656ea.exe
Size

520KB
MD5

987a5d029c5c923724872bc013ba8eca
SHA1

97c2b943c9cd1625c273652f831860a72427bb5b
SHA256

5f02339f6ea514c24162fc3b22dc7fbd86a0166944280195cb931b00a39656ea
SHA512

bdccf49488488b67025a2c8a4d48c4ca9180ac93c5e3b3564d0e25cf0fc895c5296d08cee8febf825de5af37c44032fe7bfd094ec0994628acad19a0f129619d

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

956 winupd.exe
768 winupd.exe
964 winupd.exe

pid	process
956	winupd.exe
768	winupd.exe
964	winupd.exe

UPX packed file 2 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/964-73-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/964-83-0x0000000000400000-0x00000000004B7000-memory.dmp	upx

Loads dropped DLL 2 IoCs

Processes:

5f02339f6ea514c24162fc3b22dc7fbd86a0166944280195cb931b00a39656ea.exe

pid	process
1772	5f02339f6ea514c24162fc3b22dc7fbd86a0166944280195cb931b00a39656ea.exe
1772	5f02339f6ea514c24162fc3b22dc7fbd86a0166944280195cb931b00a39656ea.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:

5f02339f6ea514c24162fc3b22dc7fbd86a0166944280195cb931b00a39656ea.exewinupd.exe

description	pid	process	target process
PID 1340 set thread context of 1772	1340	5f02339f6ea514c24162fc3b22dc7fbd86a0166944280195cb931b00a39656ea.exe	5f02339f6ea514c24162fc3b22dc7fbd86a0166944280195cb931b00a39656ea.exe
PID 956 set thread context of 768	956	winupd.exe	winupd.exe
PID 956 set thread context of 964	956	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

596 ipconfig.exe
Modifies registry key 1 TTPs 1 IoCs

Modify Registry
T1112

Processes:

reg.exe

pid process

1820 reg.exe

pid	process
596	ipconfig.exe

pid	process
1820	reg.exe

Suspicious use of AdjustPrivilegeToken 23 IoCs

Processes:

winupd.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	964	winupd.exe
Token: SeSecurityPrivilege	964	winupd.exe
Token: SeTakeOwnershipPrivilege	964	winupd.exe
Token: SeLoadDriverPrivilege	964	winupd.exe
Token: SeSystemProfilePrivilege	964	winupd.exe
Token: SeSystemtimePrivilege	964	winupd.exe
Token: SeProfSingleProcessPrivilege	964	winupd.exe
Token: SeIncBasePriorityPrivilege	964	winupd.exe
Token: SeCreatePagefilePrivilege	964	winupd.exe
Token: SeBackupPrivilege	964	winupd.exe
Token: SeRestorePrivilege	964	winupd.exe
Token: SeShutdownPrivilege	964	winupd.exe
Token: SeDebugPrivilege	964	winupd.exe
Token: SeSystemEnvironmentPrivilege	964	winupd.exe
Token: SeChangeNotifyPrivilege	964	winupd.exe
Token: SeRemoteShutdownPrivilege	964	winupd.exe
Token: SeUndockPrivilege	964	winupd.exe
Token: SeManageVolumePrivilege	964	winupd.exe
Token: SeImpersonatePrivilege	964	winupd.exe
Token: SeCreateGlobalPrivilege	964	winupd.exe
Token: 33	964	winupd.exe
Token: 34	964	winupd.exe
Token: 35	964	winupd.exe

Suspicious use of SetWindowsHookEx 5 IoCs

Processes:

5f02339f6ea514c24162fc3b22dc7fbd86a0166944280195cb931b00a39656ea.exe5f02339f6ea514c24162fc3b22dc7fbd86a0166944280195cb931b00a39656ea.exewinupd.exewinupd.exewinupd.exe

pid	process
1340	5f02339f6ea514c24162fc3b22dc7fbd86a0166944280195cb931b00a39656ea.exe
1772	5f02339f6ea514c24162fc3b22dc7fbd86a0166944280195cb931b00a39656ea.exe
956	winupd.exe
768	winupd.exe
964	winupd.exe

Suspicious use of WriteProcessMemory 44 IoCs

Processes:

5f02339f6ea514c24162fc3b22dc7fbd86a0166944280195cb931b00a39656ea.exe5f02339f6ea514c24162fc3b22dc7fbd86a0166944280195cb931b00a39656ea.exewinupd.exewinupd.exeipconfig.execmd.exe

description	pid	process	target process
PID 1340 wrote to memory of 1772	1340	5f02339f6ea514c24162fc3b22dc7fbd86a0166944280195cb931b00a39656ea.exe	5f02339f6ea514c24162fc3b22dc7fbd86a0166944280195cb931b00a39656ea.exe
PID 1340 wrote to memory of 1772	1340	5f02339f6ea514c24162fc3b22dc7fbd86a0166944280195cb931b00a39656ea.exe	5f02339f6ea514c24162fc3b22dc7fbd86a0166944280195cb931b00a39656ea.exe
PID 1340 wrote to memory of 1772	1340	5f02339f6ea514c24162fc3b22dc7fbd86a0166944280195cb931b00a39656ea.exe	5f02339f6ea514c24162fc3b22dc7fbd86a0166944280195cb931b00a39656ea.exe
PID 1340 wrote to memory of 1772	1340	5f02339f6ea514c24162fc3b22dc7fbd86a0166944280195cb931b00a39656ea.exe	5f02339f6ea514c24162fc3b22dc7fbd86a0166944280195cb931b00a39656ea.exe
PID 1340 wrote to memory of 1772	1340	5f02339f6ea514c24162fc3b22dc7fbd86a0166944280195cb931b00a39656ea.exe	5f02339f6ea514c24162fc3b22dc7fbd86a0166944280195cb931b00a39656ea.exe
PID 1340 wrote to memory of 1772	1340	5f02339f6ea514c24162fc3b22dc7fbd86a0166944280195cb931b00a39656ea.exe	5f02339f6ea514c24162fc3b22dc7fbd86a0166944280195cb931b00a39656ea.exe
PID 1340 wrote to memory of 1772	1340	5f02339f6ea514c24162fc3b22dc7fbd86a0166944280195cb931b00a39656ea.exe	5f02339f6ea514c24162fc3b22dc7fbd86a0166944280195cb931b00a39656ea.exe
PID 1340 wrote to memory of 1772	1340	5f02339f6ea514c24162fc3b22dc7fbd86a0166944280195cb931b00a39656ea.exe	5f02339f6ea514c24162fc3b22dc7fbd86a0166944280195cb931b00a39656ea.exe
PID 1340 wrote to memory of 1772	1340	5f02339f6ea514c24162fc3b22dc7fbd86a0166944280195cb931b00a39656ea.exe	5f02339f6ea514c24162fc3b22dc7fbd86a0166944280195cb931b00a39656ea.exe
PID 1772 wrote to memory of 956	1772	5f02339f6ea514c24162fc3b22dc7fbd86a0166944280195cb931b00a39656ea.exe	winupd.exe
PID 1772 wrote to memory of 956	1772	5f02339f6ea514c24162fc3b22dc7fbd86a0166944280195cb931b00a39656ea.exe	winupd.exe
PID 1772 wrote to memory of 956	1772	5f02339f6ea514c24162fc3b22dc7fbd86a0166944280195cb931b00a39656ea.exe	winupd.exe
PID 1772 wrote to memory of 956	1772	5f02339f6ea514c24162fc3b22dc7fbd86a0166944280195cb931b00a39656ea.exe	winupd.exe
PID 956 wrote to memory of 768	956	winupd.exe	winupd.exe
PID 956 wrote to memory of 768	956	winupd.exe	winupd.exe
PID 956 wrote to memory of 768	956	winupd.exe	winupd.exe
PID 956 wrote to memory of 768	956	winupd.exe	winupd.exe
PID 956 wrote to memory of 768	956	winupd.exe	winupd.exe
PID 956 wrote to memory of 768	956	winupd.exe	winupd.exe
PID 956 wrote to memory of 768	956	winupd.exe	winupd.exe
PID 956 wrote to memory of 768	956	winupd.exe	winupd.exe
PID 956 wrote to memory of 768	956	winupd.exe	winupd.exe
PID 956 wrote to memory of 964	956	winupd.exe	winupd.exe
PID 956 wrote to memory of 964	956	winupd.exe	winupd.exe
PID 956 wrote to memory of 964	956	winupd.exe	winupd.exe
PID 956 wrote to memory of 964	956	winupd.exe	winupd.exe
PID 956 wrote to memory of 964	956	winupd.exe	winupd.exe
PID 956 wrote to memory of 964	956	winupd.exe	winupd.exe
PID 956 wrote to memory of 964	956	winupd.exe	winupd.exe
PID 956 wrote to memory of 964	956	winupd.exe	winupd.exe
PID 768 wrote to memory of 596	768	winupd.exe	ipconfig.exe
PID 768 wrote to memory of 596	768	winupd.exe	ipconfig.exe
PID 768 wrote to memory of 596	768	winupd.exe	ipconfig.exe
PID 768 wrote to memory of 596	768	winupd.exe	ipconfig.exe
PID 768 wrote to memory of 596	768	winupd.exe	ipconfig.exe
PID 768 wrote to memory of 596	768	winupd.exe	ipconfig.exe
PID 596 wrote to memory of 640	596	ipconfig.exe	cmd.exe
PID 596 wrote to memory of 640	596	ipconfig.exe	cmd.exe
PID 596 wrote to memory of 640	596	ipconfig.exe	cmd.exe
PID 596 wrote to memory of 640	596	ipconfig.exe	cmd.exe
PID 640 wrote to memory of 1820	640	cmd.exe	reg.exe
PID 640 wrote to memory of 1820	640	cmd.exe	reg.exe
PID 640 wrote to memory of 1820	640	cmd.exe	reg.exe
PID 640 wrote to memory of 1820	640	cmd.exe	reg.exe

C:\Users\Admin\AppData\Local\Temp\5f02339f6ea514c24162fc3b22dc7fbd86a0166944280195cb931b00a39656ea.exe
"C:\Users\Admin\AppData\Local\Temp\5f02339f6ea514c24162fc3b22dc7fbd86a0166944280195cb931b00a39656ea.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1340

C:\Users\Admin\AppData\Local\Temp\5f02339f6ea514c24162fc3b22dc7fbd86a0166944280195cb931b00a39656ea.exe
"C:\Users\Admin\AppData\Local\Temp\5f02339f6ea514c24162fc3b22dc7fbd86a0166944280195cb931b00a39656ea.exe"
2⤵
- Loads dropped DLL
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1772

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:956

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:768

C:\Windows\SysWOW64\ipconfig.exe
"C:\Windows\system32\ipconfig.exe"
5⤵
- Gathers network information
- Suspicious use of WriteProcessMemory
PID:596

C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\CLYUDXNR.bat" "
6⤵
- Suspicious use of WriteProcessMemory
PID:640

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:1820

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:964

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\CLYUDXNR.bat
MD5
cac890d00365d07b9ca89def17cc3a36

SHA1
6fa99679ede791c16b5d3e6d243a98e8bbdb7eab

SHA256
4f98ddee89760080a5c8a93666d2f5c97be52b741265ef4d1ce9aaebf05f12da

SHA512
124dc0b18e13425bde43bcbbe2a99005928e398bffcb458d498aac9e754bc5b92b703270667800876c60b0801343f2de8c6b9a1eebafd80bb4f6d5dc295dd9f1

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\winupd.exe
MD5
21604cb0a09b739713f607caa8c2abd4

SHA1
93cac5d8297652ad369bc7152cb9b0c782e3ceb3

SHA256
18e1ca3ae0d25972580fa8e23d32fe0348fbcb7de007dfe03f8af8f40276e9a3

SHA512
9d82d1b2ea6b1663a433b35f13a4b75644dae705ce3bace4a278dd415a9a512f5a8b6f665f6e926cc1bbbe35f82c996c5940a0f96ee4ed5aa72b1483cb5ca019

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\winupd.exe
MD5
21604cb0a09b739713f607caa8c2abd4

SHA1
93cac5d8297652ad369bc7152cb9b0c782e3ceb3

SHA256
18e1ca3ae0d25972580fa8e23d32fe0348fbcb7de007dfe03f8af8f40276e9a3

SHA512
9d82d1b2ea6b1663a433b35f13a4b75644dae705ce3bace4a278dd415a9a512f5a8b6f665f6e926cc1bbbe35f82c996c5940a0f96ee4ed5aa72b1483cb5ca019

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\winupd.exe
MD5
21604cb0a09b739713f607caa8c2abd4

SHA1
93cac5d8297652ad369bc7152cb9b0c782e3ceb3

SHA256
18e1ca3ae0d25972580fa8e23d32fe0348fbcb7de007dfe03f8af8f40276e9a3

SHA512
9d82d1b2ea6b1663a433b35f13a4b75644dae705ce3bace4a278dd415a9a512f5a8b6f665f6e926cc1bbbe35f82c996c5940a0f96ee4ed5aa72b1483cb5ca019

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\winupd.exe
MD5
21604cb0a09b739713f607caa8c2abd4

SHA1
93cac5d8297652ad369bc7152cb9b0c782e3ceb3

SHA256
18e1ca3ae0d25972580fa8e23d32fe0348fbcb7de007dfe03f8af8f40276e9a3

SHA512
9d82d1b2ea6b1663a433b35f13a4b75644dae705ce3bace4a278dd415a9a512f5a8b6f665f6e926cc1bbbe35f82c996c5940a0f96ee4ed5aa72b1483cb5ca019

Download Submit
\Users\Admin\AppData\Roaming\Microsoft\winupd.exe
MD5
21604cb0a09b739713f607caa8c2abd4

SHA1
93cac5d8297652ad369bc7152cb9b0c782e3ceb3

SHA256
18e1ca3ae0d25972580fa8e23d32fe0348fbcb7de007dfe03f8af8f40276e9a3

SHA512
9d82d1b2ea6b1663a433b35f13a4b75644dae705ce3bace4a278dd415a9a512f5a8b6f665f6e926cc1bbbe35f82c996c5940a0f96ee4ed5aa72b1483cb5ca019

Download Submit
\Users\Admin\AppData\Roaming\Microsoft\winupd.exe
MD5
21604cb0a09b739713f607caa8c2abd4

SHA1
93cac5d8297652ad369bc7152cb9b0c782e3ceb3

SHA256
18e1ca3ae0d25972580fa8e23d32fe0348fbcb7de007dfe03f8af8f40276e9a3

SHA512
9d82d1b2ea6b1663a433b35f13a4b75644dae705ce3bace4a278dd415a9a512f5a8b6f665f6e926cc1bbbe35f82c996c5940a0f96ee4ed5aa72b1483cb5ca019

Download Submit
memory/596-80-0x0000000000000000-mapping.dmp

Download
memory/640-85-0x0000000000000000-mapping.dmp

Download
memory/768-71-0x000000000040140C-mapping.dmp

Download
memory/956-62-0x0000000000000000-mapping.dmp

Download
memory/964-74-0x00000000004B5670-mapping.dmp

Download
memory/964-73-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/964-83-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/964-84-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/1340-68-0x00000000005B0000-0x00000000005B2000-memory.dmp

Filesize
8KB

Download
memory/1340-67-0x00000000005A0000-0x00000000005A2000-memory.dmp

Filesize
8KB

Download
memory/1340-66-0x0000000000390000-0x0000000000392000-memory.dmp

Filesize
8KB

Download
memory/1772-59-0x0000000075331000-0x0000000075333000-memory.dmp

Filesize
8KB

Download
memory/1772-55-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/1772-56-0x000000000040140C-mapping.dmp

Download
memory/1820-86-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads