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

1356 vbc.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	vbc.exe

pid	process
1356	vbc.exe

UPX packed file 10 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/1356-58-0x0000000000400000-0x00000000004D5000-memory.dmp	upx
behavioral1/memory/1356-60-0x0000000000400000-0x00000000004D5000-memory.dmp	upx
behavioral1/memory/1356-62-0x0000000000400000-0x00000000004D5000-memory.dmp	upx
behavioral1/memory/1356-65-0x0000000000400000-0x00000000004D5000-memory.dmp	upx
behavioral1/memory/1356-67-0x0000000000400000-0x00000000004D5000-memory.dmp	upx
behavioral1/memory/1356-69-0x0000000000400000-0x00000000004D5000-memory.dmp	upx
behavioral1/memory/1356-70-0x0000000000400000-0x00000000004D5000-memory.dmp	upx
behavioral1/memory/1356-71-0x0000000000400000-0x00000000004D5000-memory.dmp	upx
behavioral1/memory/1356-72-0x0000000000400000-0x00000000004D5000-memory.dmp	upx
behavioral1/memory/1356-73-0x0000000000400000-0x00000000004D5000-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
Loads dropped DLL 1 IoCs

Processes:

8c97df2ada1b9b229bbeaddf77a8d3e9d5e6033f596230f4354be4fd6dda833c.exe

pid process

1268 8c97df2ada1b9b229bbeaddf77a8d3e9d5e6033f596230f4354be4fd6dda833c.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

pid	process
1268	8c97df2ada1b9b229bbeaddf77a8d3e9d5e6033f596230f4354be4fd6dda833c.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-1-5-21-2292972927-2705560509-2768824231-1000\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 1268 set thread context of 1356	1268	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 23 IoCs

Processes:

vbc.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	1356	vbc.exe
Token: SeSecurityPrivilege	1356	vbc.exe
Token: SeTakeOwnershipPrivilege	1356	vbc.exe
Token: SeLoadDriverPrivilege	1356	vbc.exe
Token: SeSystemProfilePrivilege	1356	vbc.exe
Token: SeSystemtimePrivilege	1356	vbc.exe
Token: SeProfSingleProcessPrivilege	1356	vbc.exe
Token: SeIncBasePriorityPrivilege	1356	vbc.exe
Token: SeCreatePagefilePrivilege	1356	vbc.exe
Token: SeBackupPrivilege	1356	vbc.exe
Token: SeRestorePrivilege	1356	vbc.exe
Token: SeShutdownPrivilege	1356	vbc.exe
Token: SeDebugPrivilege	1356	vbc.exe
Token: SeSystemEnvironmentPrivilege	1356	vbc.exe
Token: SeChangeNotifyPrivilege	1356	vbc.exe
Token: SeRemoteShutdownPrivilege	1356	vbc.exe
Token: SeUndockPrivilege	1356	vbc.exe
Token: SeManageVolumePrivilege	1356	vbc.exe
Token: SeImpersonatePrivilege	1356	vbc.exe
Token: SeCreateGlobalPrivilege	1356	vbc.exe
Token: 33	1356	vbc.exe
Token: 34	1356	vbc.exe
Token: 35	1356	vbc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

vbc.exe

pid process

1356 vbc.exe

pid	process
1356	vbc.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

8c97df2ada1b9b229bbeaddf77a8d3e9d5e6033f596230f4354be4fd6dda833c.exe

description	pid	process	target process
PID 1268 wrote to memory of 1356	1268	8c97df2ada1b9b229bbeaddf77a8d3e9d5e6033f596230f4354be4fd6dda833c.exe	vbc.exe
PID 1268 wrote to memory of 1356	1268	8c97df2ada1b9b229bbeaddf77a8d3e9d5e6033f596230f4354be4fd6dda833c.exe	vbc.exe
PID 1268 wrote to memory of 1356	1268	8c97df2ada1b9b229bbeaddf77a8d3e9d5e6033f596230f4354be4fd6dda833c.exe	vbc.exe
PID 1268 wrote to memory of 1356	1268	8c97df2ada1b9b229bbeaddf77a8d3e9d5e6033f596230f4354be4fd6dda833c.exe	vbc.exe
PID 1268 wrote to memory of 1356	1268	8c97df2ada1b9b229bbeaddf77a8d3e9d5e6033f596230f4354be4fd6dda833c.exe	vbc.exe
PID 1268 wrote to memory of 1356	1268	8c97df2ada1b9b229bbeaddf77a8d3e9d5e6033f596230f4354be4fd6dda833c.exe	vbc.exe
PID 1268 wrote to memory of 1356	1268	8c97df2ada1b9b229bbeaddf77a8d3e9d5e6033f596230f4354be4fd6dda833c.exe	vbc.exe
PID 1268 wrote to memory of 1356	1268	8c97df2ada1b9b229bbeaddf77a8d3e9d5e6033f596230f4354be4fd6dda833c.exe	vbc.exe

C:\Users\Admin\AppData\Local\Temp\8c97df2ada1b9b229bbeaddf77a8d3e9d5e6033f596230f4354be4fd6dda833c.exe
"C:\Users\Admin\AppData\Local\Temp\8c97df2ada1b9b229bbeaddf77a8d3e9d5e6033f596230f4354be4fd6dda833c.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1268

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:1356

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
34aa912defa18c2c129f1e09d75c1d7e

SHA1
9c3046324657505a30ecd9b1fdb46c05bde7d470

SHA256
6df94b7fa33f1b87142adc39b3db0613fc520d9e7a5fd6a5301dd7f51f8d0386

SHA512
d1ea9368f5d7166180612fd763c87afb647d088498887961f5e7fb0a10f4a808bd5928e8a3666d70ff794093c51ecca8816f75dd47652fd4eb23dce7f9aa1f98

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

MD5
34aa912defa18c2c129f1e09d75c1d7e

SHA1
9c3046324657505a30ecd9b1fdb46c05bde7d470

SHA256
6df94b7fa33f1b87142adc39b3db0613fc520d9e7a5fd6a5301dd7f51f8d0386

SHA512
d1ea9368f5d7166180612fd763c87afb647d088498887961f5e7fb0a10f4a808bd5928e8a3666d70ff794093c51ecca8816f75dd47652fd4eb23dce7f9aa1f98

Download Submit
memory/1268-55-0x00000000747E0000-0x0000000074D8B000-memory.dmp

Filesize
5.7MB

Download
memory/1268-68-0x00000000747E0000-0x0000000074D8B000-memory.dmp

Filesize
5.7MB

Download
memory/1268-54-0x0000000075211000-0x0000000075213000-memory.dmp

Filesize
8KB

Download
memory/1356-63-0x00000000004CB1B0-mapping.dmp

Download
memory/1356-62-0x0000000000400000-0x00000000004D5000-memory.dmp

Filesize
852KB

Download
memory/1356-60-0x0000000000400000-0x00000000004D5000-memory.dmp

Filesize
852KB

Download
memory/1356-58-0x0000000000400000-0x00000000004D5000-memory.dmp

Filesize
852KB

Download
memory/1356-65-0x0000000000400000-0x00000000004D5000-memory.dmp

Filesize
852KB

Download
memory/1356-67-0x0000000000400000-0x00000000004D5000-memory.dmp

Filesize
852KB

Download
memory/1356-57-0x0000000000400000-0x00000000004D5000-memory.dmp

Filesize
852KB

Download
memory/1356-69-0x0000000000400000-0x00000000004D5000-memory.dmp

Filesize
852KB

Download
memory/1356-70-0x0000000000400000-0x00000000004D5000-memory.dmp

Filesize
852KB

Download
memory/1356-71-0x0000000000400000-0x00000000004D5000-memory.dmp

Filesize
852KB

Download
memory/1356-72-0x0000000000400000-0x00000000004D5000-memory.dmp

Filesize
852KB

Download
memory/1356-73-0x0000000000400000-0x00000000004D5000-memory.dmp

Filesize
852KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads