darkcomet | 3fea598ae996ff290d4195dcfec499ea85025ffa186333d766251616481c5869

Analysis

max time kernel
141s
max time network
143s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
21-01-2025 23:48

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General

Target

3fea598ae996ff290d4195dcfec499ea85025ffa186333d766251616481c5869.exe
Size

574KB
MD5

77256725525f7fa9c9f6351ef0cec755
SHA1

600c27ad867179097f80f52d91b13b07b68deea7
SHA256

3fea598ae996ff290d4195dcfec499ea85025ffa186333d766251616481c5869
SHA512

4c3b86862d168a4d5756febe19fd283aa0a56057cea4abcec2a4a89de9bb0d470e7c4c1d2ca22cdf6072d4d8f5928dd0fb886a322831f1722ef8e5db5ad5307a
SSDEEP

12288:zCyEHAWAdljmJqkC3xMX85FSR2f9A08NIX+Vjwd4G/3z1ET4m3HdsubE:zFhWAfn22m0eD1GPz8Hdx4

Score

10^/10

darkcomet discovery persistence rat trojan upx

Malware Config

Signatures

Darkcomet
DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.
trojan rat darkcomet
Darkcomet family
darkcomet

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

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	Soundcrd.exe

Executes dropped EXE 3 IoCs

pid	Process
2464	Soundcrd.exe
2912	Soundcrd.exe
2600	Soundcrd.exe

Loads dropped DLL 7 IoCs

pid	Process
2432	3fea598ae996ff290d4195dcfec499ea85025ffa186333d766251616481c5869.exe
2432	3fea598ae996ff290d4195dcfec499ea85025ffa186333d766251616481c5869.exe
2432	3fea598ae996ff290d4195dcfec499ea85025ffa186333d766251616481c5869.exe
2432	3fea598ae996ff290d4195dcfec499ea85025ffa186333d766251616481c5869.exe
2432	3fea598ae996ff290d4195dcfec499ea85025ffa186333d766251616481c5869.exe
2464	Soundcrd.exe
2464	Soundcrd.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Windows\CurrentVersion\Run\Mcrosoftt = "C:\\Users\\Admin\\AppData\\Roaming\\Soundcrd.exe"	reg.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2464 set thread context of 2912	2464	Soundcrd.exe	34
PID 2464 set thread context of 2600	2464	Soundcrd.exe	35

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2600-64-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2600-63-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2912-70-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2912-71-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2912-74-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2912-68-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2912-66-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2912-55-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2912-57-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2912-61-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2600-60-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2912-59-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2912-75-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2600-77-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2912-80-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2912-84-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2912-88-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2912-92-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2912-96-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2912-100-0x0000000000400000-0x00000000004B5000-memory.dmp	upx

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Soundcrd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Soundcrd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Soundcrd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3fea598ae996ff290d4195dcfec499ea85025ffa186333d766251616481c5869.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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

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

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	Soundcrd.exe

Suspicious use of AdjustPrivilegeToken 24 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2912	Soundcrd.exe
Token: SeSecurityPrivilege	2912	Soundcrd.exe
Token: SeTakeOwnershipPrivilege	2912	Soundcrd.exe
Token: SeLoadDriverPrivilege	2912	Soundcrd.exe
Token: SeSystemProfilePrivilege	2912	Soundcrd.exe
Token: SeSystemtimePrivilege	2912	Soundcrd.exe
Token: SeProfSingleProcessPrivilege	2912	Soundcrd.exe
Token: SeIncBasePriorityPrivilege	2912	Soundcrd.exe
Token: SeCreatePagefilePrivilege	2912	Soundcrd.exe
Token: SeBackupPrivilege	2912	Soundcrd.exe
Token: SeRestorePrivilege	2912	Soundcrd.exe
Token: SeShutdownPrivilege	2912	Soundcrd.exe
Token: SeDebugPrivilege	2912	Soundcrd.exe
Token: SeSystemEnvironmentPrivilege	2912	Soundcrd.exe
Token: SeChangeNotifyPrivilege	2912	Soundcrd.exe
Token: SeRemoteShutdownPrivilege	2912	Soundcrd.exe
Token: SeUndockPrivilege	2912	Soundcrd.exe
Token: SeManageVolumePrivilege	2912	Soundcrd.exe
Token: SeImpersonatePrivilege	2912	Soundcrd.exe
Token: SeCreateGlobalPrivilege	2912	Soundcrd.exe
Token: 33	2912	Soundcrd.exe
Token: 34	2912	Soundcrd.exe
Token: 35	2912	Soundcrd.exe
Token: SeDebugPrivilege	2600	Soundcrd.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2432	3fea598ae996ff290d4195dcfec499ea85025ffa186333d766251616481c5869.exe
2464	Soundcrd.exe
2600	Soundcrd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2432 wrote to memory of 2184	2432	3fea598ae996ff290d4195dcfec499ea85025ffa186333d766251616481c5869.exe	30
PID 2432 wrote to memory of 2184	2432	3fea598ae996ff290d4195dcfec499ea85025ffa186333d766251616481c5869.exe	30
PID 2432 wrote to memory of 2184	2432	3fea598ae996ff290d4195dcfec499ea85025ffa186333d766251616481c5869.exe	30
PID 2432 wrote to memory of 2184	2432	3fea598ae996ff290d4195dcfec499ea85025ffa186333d766251616481c5869.exe	30
PID 2184 wrote to memory of 2556	2184	cmd.exe	32
PID 2184 wrote to memory of 2556	2184	cmd.exe	32
PID 2184 wrote to memory of 2556	2184	cmd.exe	32
PID 2184 wrote to memory of 2556	2184	cmd.exe	32
PID 2432 wrote to memory of 2464	2432	3fea598ae996ff290d4195dcfec499ea85025ffa186333d766251616481c5869.exe	33
PID 2432 wrote to memory of 2464	2432	3fea598ae996ff290d4195dcfec499ea85025ffa186333d766251616481c5869.exe	33
PID 2432 wrote to memory of 2464	2432	3fea598ae996ff290d4195dcfec499ea85025ffa186333d766251616481c5869.exe	33
PID 2432 wrote to memory of 2464	2432	3fea598ae996ff290d4195dcfec499ea85025ffa186333d766251616481c5869.exe	33
PID 2464 wrote to memory of 2912	2464	Soundcrd.exe	34
PID 2464 wrote to memory of 2912	2464	Soundcrd.exe	34
PID 2464 wrote to memory of 2912	2464	Soundcrd.exe	34
PID 2464 wrote to memory of 2912	2464	Soundcrd.exe	34
PID 2464 wrote to memory of 2912	2464	Soundcrd.exe	34
PID 2464 wrote to memory of 2912	2464	Soundcrd.exe	34
PID 2464 wrote to memory of 2912	2464	Soundcrd.exe	34
PID 2464 wrote to memory of 2912	2464	Soundcrd.exe	34
PID 2464 wrote to memory of 2912	2464	Soundcrd.exe	34
PID 2464 wrote to memory of 2600	2464	Soundcrd.exe	35
PID 2464 wrote to memory of 2600	2464	Soundcrd.exe	35
PID 2464 wrote to memory of 2600	2464	Soundcrd.exe	35
PID 2464 wrote to memory of 2600	2464	Soundcrd.exe	35
PID 2464 wrote to memory of 2600	2464	Soundcrd.exe	35
PID 2464 wrote to memory of 2600	2464	Soundcrd.exe	35
PID 2464 wrote to memory of 2600	2464	Soundcrd.exe	35
PID 2464 wrote to memory of 2600	2464	Soundcrd.exe	35
PID 2464 wrote to memory of 2600	2464	Soundcrd.exe	35

C:\Users\Admin\AppData\Local\Temp\3fea598ae996ff290d4195dcfec499ea85025ffa186333d766251616481c5869.exe
"C:\Users\Admin\AppData\Local\Temp\3fea598ae996ff290d4195dcfec499ea85025ffa186333d766251616481c5869.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2432
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\gTDSo.bat" "
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2184
- - C:\Windows\SysWOW64\reg.exe
    REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "Mcrosoftt" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Soundcrd.exe" /f
    3⤵
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    PID:2556
- C:\Users\Admin\AppData\Roaming\Soundcrd.exe
  "C:\Users\Admin\AppData\Roaming\Soundcrd.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2464
- - C:\Users\Admin\AppData\Roaming\Soundcrd.exe
    C:\Users\Admin\AppData\Roaming\Soundcrd.exe
    3⤵
    - Checks BIOS information in registry
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Checks processor information in registry
    - Enumerates system info in registry
    - Suspicious use of AdjustPrivilegeToken
    PID:2912
- - C:\Users\Admin\AppData\Roaming\Soundcrd.exe
    C:\Users\Admin\AppData\Roaming\Soundcrd.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:2600

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
139B

MD5
173bcce4810d4901872d0ef4f0bfea4e

SHA1
561b03fdfe68b6419fddf57f32e1aab9a6126a2f

SHA256
10ea37eceabbe80fe9814280b66b957636951dbeeed18a9b4d50a1d24a6f1d1d

SHA512
2401e0a5e3f7bf590a0767449da2249d09717e8c1cb71a7475e81d9615580001cfc38705cd1a5b4edc33f7df043bf195e28e4a5442a32bc879dffc6473bd545e

Download Submit
C:\Users\Admin\AppData\Roaming\Soundcrd.exe

Filesize
574KB

MD5
6d1c790f0a061f464fe7213b931f9e8b

SHA1
c83c26b853c1dc83d253a71949af0634a035adbd

SHA256
89351c1820c00b364cc32eede5ed6503ff14c420720f00d02ec6dae6e506211c

SHA512
2f60cbc55f4be93226c79ab24570555ff0c120fe0c724d9dc936c98a2170c31ecdf36014b03f138f0a824f725a77796b96f3f4f0d8cd7247486be694942e136f

Download Submit
memory/2432-42-0x00000000038E0000-0x0000000003CCA000-memory.dmp

Filesize
3.9MB

Download
memory/2432-45-0x00000000038E0000-0x0000000003CCA000-memory.dmp

Filesize
3.9MB

Download
memory/2432-0-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/2432-46-0x00000000038E0000-0x0000000003CCA000-memory.dmp

Filesize
3.9MB

Download
memory/2432-49-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/2432-43-0x00000000038E0000-0x0000000003CCA000-memory.dmp

Filesize
3.9MB

Download
memory/2464-47-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/2464-54-0x0000000002A40000-0x0000000002E2A000-memory.dmp

Filesize
3.9MB

Download
memory/2464-69-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/2464-67-0x0000000002B40000-0x0000000002F2A000-memory.dmp

Filesize
3.9MB

Download
memory/2600-64-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2600-63-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2600-77-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2600-60-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2912-68-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2912-74-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2912-66-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2912-55-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2912-57-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2912-61-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2912-71-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2912-59-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2912-75-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2912-70-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2912-80-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2912-84-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2912-88-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2912-92-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2912-96-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2912-100-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads