darkcomet | 8c97df2ada1b9b229bbeaddf77a8d3e9d5e6033f596230f4354be4fd6dda833c

General

Target

8c97df2ada1b9b229bbeaddf77a8d3e9d5e6033f596230f4354be4fd6dda833c.exe
Size

535KB
MD5

93d9b292cd63f1ea011ef3b4febf1306
SHA1

f8ca7a07711f31721c10e815e56d5481aae2649f
SHA256

8c97df2ada1b9b229bbeaddf77a8d3e9d5e6033f596230f4354be4fd6dda833c
SHA512

ccc5a72f7ef4d2899111064eba2305469d65ef5b67f88b667ac1b6f32dfd0eca2458e02059b761a4df26bcca2db49a357cd0b9919747e7553da6d60bddd70f82
SSDEEP

12288:Lvl9eg1DTCchbfP5u97nK84KrJJKlHqVPZyf9QQnahxJCPTbE672l:zlwEThuTeKz/QTV

Score

10^/10

darkcomet evasion persistence rat trojan upx

Malware Config

Signatures

Darkcomet
DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.
trojan rat darkcomet
Windows security bypass 2 TTPs 1 IoCs
evasion trojan

Disabling Security Tools
T1089

Modify Registry
T1112

Processes:

vbc.exe

description ioc process

Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" vbc.exe
Executes dropped EXE 1 IoCs

Processes:

vbc.exe

pid process

1240 vbc.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	vbc.exe

pid	process
1240	vbc.exe

UPX packed file 7 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/1240-134-0x0000000000400000-0x00000000004D5000-memory.dmp	upx
behavioral2/memory/1240-137-0x0000000000400000-0x00000000004D5000-memory.dmp	upx
behavioral2/memory/1240-138-0x0000000000400000-0x00000000004D5000-memory.dmp	upx
behavioral2/memory/1240-141-0x0000000000400000-0x00000000004D5000-memory.dmp	upx
behavioral2/memory/1240-142-0x0000000000400000-0x00000000004D5000-memory.dmp	upx
behavioral2/memory/1240-143-0x0000000000400000-0x00000000004D5000-memory.dmp	upx
behavioral2/memory/1240-144-0x0000000000400000-0x00000000004D5000-memory.dmp	upx

Checks BIOS information in registry 2 TTPs 1 IoCs
BIOS information is often read in order to detect sandboxing environments.

Query Registry
T1012

System Information Discovery
T1082

Processes:

vbc.exe

description ioc process

Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate vbc.exe
Uses the VBS compiler for execution 1 TTPs

Scripting
T1064
Windows security modification 2 TTPs 1 IoCs
evasion trojan

Disabling Security Tools
T1089

Modify Registry
T1112

Processes:

vbc.exe

description ioc process

Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" vbc.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	vbc.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	vbc.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

8c97df2ada1b9b229bbeaddf77a8d3e9d5e6033f596230f4354be4fd6dda833c.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WinUpdtr = "C:\\Users\\Admin\\AppData\\Roaming\\WinUpdtr\\8c97df2ada1b9b229bbeaddf77a8d3e9d5e6033f596230f4354be4fd6dda833c.exe"	8c97df2ada1b9b229bbeaddf77a8d3e9d5e6033f596230f4354be4fd6dda833c.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

8c97df2ada1b9b229bbeaddf77a8d3e9d5e6033f596230f4354be4fd6dda833c.exe

description	pid	process	target process
PID 4372 set thread context of 1240	4372	8c97df2ada1b9b229bbeaddf77a8d3e9d5e6033f596230f4354be4fd6dda833c.exe	vbc.exe

Checks processor information in registry 2 TTPs 4 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

vbc.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	vbc.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	vbc.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	vbc.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	vbc.exe

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry
T1012

System Information Discovery
T1082

Processes:

vbc.exe

description ioc process

Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier vbc.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	vbc.exe

Suspicious use of AdjustPrivilegeToken 24 IoCs

Processes:

vbc.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	1240	vbc.exe
Token: SeSecurityPrivilege	1240	vbc.exe
Token: SeTakeOwnershipPrivilege	1240	vbc.exe
Token: SeLoadDriverPrivilege	1240	vbc.exe
Token: SeSystemProfilePrivilege	1240	vbc.exe
Token: SeSystemtimePrivilege	1240	vbc.exe
Token: SeProfSingleProcessPrivilege	1240	vbc.exe
Token: SeIncBasePriorityPrivilege	1240	vbc.exe
Token: SeCreatePagefilePrivilege	1240	vbc.exe
Token: SeBackupPrivilege	1240	vbc.exe
Token: SeRestorePrivilege	1240	vbc.exe
Token: SeShutdownPrivilege	1240	vbc.exe
Token: SeDebugPrivilege	1240	vbc.exe
Token: SeSystemEnvironmentPrivilege	1240	vbc.exe
Token: SeChangeNotifyPrivilege	1240	vbc.exe
Token: SeRemoteShutdownPrivilege	1240	vbc.exe
Token: SeUndockPrivilege	1240	vbc.exe
Token: SeManageVolumePrivilege	1240	vbc.exe
Token: SeImpersonatePrivilege	1240	vbc.exe
Token: SeCreateGlobalPrivilege	1240	vbc.exe
Token: 33	1240	vbc.exe
Token: 34	1240	vbc.exe
Token: 35	1240	vbc.exe
Token: 36	1240	vbc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

vbc.exe

pid process

1240 vbc.exe

pid	process
1240	vbc.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

8c97df2ada1b9b229bbeaddf77a8d3e9d5e6033f596230f4354be4fd6dda833c.exe

description	pid	process	target process
PID 4372 wrote to memory of 1240	4372	8c97df2ada1b9b229bbeaddf77a8d3e9d5e6033f596230f4354be4fd6dda833c.exe	vbc.exe
PID 4372 wrote to memory of 1240	4372	8c97df2ada1b9b229bbeaddf77a8d3e9d5e6033f596230f4354be4fd6dda833c.exe	vbc.exe
PID 4372 wrote to memory of 1240	4372	8c97df2ada1b9b229bbeaddf77a8d3e9d5e6033f596230f4354be4fd6dda833c.exe	vbc.exe
PID 4372 wrote to memory of 1240	4372	8c97df2ada1b9b229bbeaddf77a8d3e9d5e6033f596230f4354be4fd6dda833c.exe	vbc.exe
PID 4372 wrote to memory of 1240	4372	8c97df2ada1b9b229bbeaddf77a8d3e9d5e6033f596230f4354be4fd6dda833c.exe	vbc.exe
PID 4372 wrote to memory of 1240	4372	8c97df2ada1b9b229bbeaddf77a8d3e9d5e6033f596230f4354be4fd6dda833c.exe	vbc.exe
PID 4372 wrote to memory of 1240	4372	8c97df2ada1b9b229bbeaddf77a8d3e9d5e6033f596230f4354be4fd6dda833c.exe	vbc.exe
PID 4372 wrote to memory of 1240	4372	8c97df2ada1b9b229bbeaddf77a8d3e9d5e6033f596230f4354be4fd6dda833c.exe	vbc.exe

C:\Users\Admin\AppData\Local\Temp\8c97df2ada1b9b229bbeaddf77a8d3e9d5e6033f596230f4354be4fd6dda833c.exe
"C:\Users\Admin\AppData\Local\Temp\8c97df2ada1b9b229bbeaddf77a8d3e9d5e6033f596230f4354be4fd6dda833c.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4372

C:\Users\Admin\AppData\Local\Temp\vbc.exe
C:\Users\Admin\AppData\Local\Temp\vbc.exe
2⤵
- Windows security bypass
- Executes dropped EXE
- Checks BIOS information in registry
- Windows security modification
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:1240

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scripting

1

T1064

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Disabling Security Tools

2

T1089

Modify Registry

3

T1112

Scripting

1

T1064

Credential Access

Discovery

Query Registry

3

T1012

System Information Discovery

3

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\vbc.exe
Filesize
1.1MB

MD5
d881de17aa8f2e2c08cbb7b265f928f9

SHA1
08936aebc87decf0af6e8eada191062b5e65ac2a

SHA256
b3a37093609f9a20ad60b85a9fa9de2ba674cba9b5bd687729440c70ba619ca0

SHA512
5f23bfb1b8740247b36ed0ab741738c7d4c949736129e767213e321607d1ccd3e3a8428e4ba44bd28a275b5e3f6206285b1a522514b7ef7ea5e698d90a713d34

Download Submit
C:\Users\Admin\AppData\Local\Temp\vbc.exe
Filesize
1.1MB

MD5
d881de17aa8f2e2c08cbb7b265f928f9

SHA1
08936aebc87decf0af6e8eada191062b5e65ac2a

SHA256
b3a37093609f9a20ad60b85a9fa9de2ba674cba9b5bd687729440c70ba619ca0

SHA512
5f23bfb1b8740247b36ed0ab741738c7d4c949736129e767213e321607d1ccd3e3a8428e4ba44bd28a275b5e3f6206285b1a522514b7ef7ea5e698d90a713d34

Download Submit
memory/1240-133-0x0000000000000000-mapping.dmp

Download
memory/1240-134-0x0000000000400000-0x00000000004D5000-memory.dmp

Filesize
852KB

Download
memory/1240-137-0x0000000000400000-0x00000000004D5000-memory.dmp

Filesize
852KB

Download
memory/1240-138-0x0000000000400000-0x00000000004D5000-memory.dmp

Filesize
852KB

Download
memory/1240-141-0x0000000000400000-0x00000000004D5000-memory.dmp

Filesize
852KB

Download
memory/1240-142-0x0000000000400000-0x00000000004D5000-memory.dmp

Filesize
852KB

Download
memory/1240-143-0x0000000000400000-0x00000000004D5000-memory.dmp

Filesize
852KB

Download
memory/1240-144-0x0000000000400000-0x00000000004D5000-memory.dmp

Filesize
852KB

Download
memory/4372-132-0x0000000074E20000-0x00000000753D1000-memory.dmp

Filesize
5.7MB

Download
memory/4372-140-0x0000000074E20000-0x00000000753D1000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads