darkcomet | 3cc196ba98e8ecc881558e08e34f5e8725e58c4bdf0eb2e6ae92c57d900b5673

Analysis

max time kernel
119s
max time network
124s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
26-12-2024 09:27

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General

Target

3cc196ba98e8ecc881558e08e34f5e8725e58c4bdf0eb2e6ae92c57d900b5673N.exe
Size

574KB
MD5

8d89b6eb98e23ff31ba5e5f72eb499c0
SHA1

17ff0a7d17834418b9302d59971a64502b82baef
SHA256

3cc196ba98e8ecc881558e08e34f5e8725e58c4bdf0eb2e6ae92c57d900b5673
SHA512

5694f08429d1ac73af13e56581c294f71e097f7858ed1c86c8912ccc7eb1dc6b099ffc31fbe23ffca32a422805af289bcebb35a6144a6fc5055d08b4c44a59ca
SSDEEP

12288:zCyEHAWAdljmJqkC3xMX85FSR2f9A08NIX+Vjwd4G/3z1ET4m3Hdsub6:zFhWAfn22m0eD1GPz8Hdxm

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
1508	Soundcrd.exe
2644	Soundcrd.exe
2692	Soundcrd.exe

Loads dropped DLL 5 IoCs

pid	Process
1852	3cc196ba98e8ecc881558e08e34f5e8725e58c4bdf0eb2e6ae92c57d900b5673N.exe
1852	3cc196ba98e8ecc881558e08e34f5e8725e58c4bdf0eb2e6ae92c57d900b5673N.exe
1852	3cc196ba98e8ecc881558e08e34f5e8725e58c4bdf0eb2e6ae92c57d900b5673N.exe
1852	3cc196ba98e8ecc881558e08e34f5e8725e58c4bdf0eb2e6ae92c57d900b5673N.exe
1852	3cc196ba98e8ecc881558e08e34f5e8725e58c4bdf0eb2e6ae92c57d900b5673N.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-1-5-21-3692679935-4019334568-335155002-1000\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 1508 set thread context of 2644	1508	Soundcrd.exe	34
PID 1508 set thread context of 2692	1508	Soundcrd.exe	35

UPX packed file 18 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2644-54-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2644-52-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2692-61-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2692-60-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2644-59-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2692-55-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2644-66-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2644-68-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2644-67-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2644-69-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2644-70-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2644-71-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2692-73-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2644-72-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2644-78-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2644-82-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2644-86-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2644-90-0x0000000000400000-0x00000000004B5000-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	Soundcrd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3cc196ba98e8ecc881558e08e34f5e8725e58c4bdf0eb2e6ae92c57d900b5673N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
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

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 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
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	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: SeDebugPrivilege	2692	Soundcrd.exe
Token: SeIncreaseQuotaPrivilege	2644	Soundcrd.exe
Token: SeSecurityPrivilege	2644	Soundcrd.exe
Token: SeTakeOwnershipPrivilege	2644	Soundcrd.exe
Token: SeLoadDriverPrivilege	2644	Soundcrd.exe
Token: SeSystemProfilePrivilege	2644	Soundcrd.exe
Token: SeSystemtimePrivilege	2644	Soundcrd.exe
Token: SeProfSingleProcessPrivilege	2644	Soundcrd.exe
Token: SeIncBasePriorityPrivilege	2644	Soundcrd.exe
Token: SeCreatePagefilePrivilege	2644	Soundcrd.exe
Token: SeBackupPrivilege	2644	Soundcrd.exe
Token: SeRestorePrivilege	2644	Soundcrd.exe
Token: SeShutdownPrivilege	2644	Soundcrd.exe
Token: SeDebugPrivilege	2644	Soundcrd.exe
Token: SeSystemEnvironmentPrivilege	2644	Soundcrd.exe
Token: SeChangeNotifyPrivilege	2644	Soundcrd.exe
Token: SeRemoteShutdownPrivilege	2644	Soundcrd.exe
Token: SeUndockPrivilege	2644	Soundcrd.exe
Token: SeManageVolumePrivilege	2644	Soundcrd.exe
Token: SeImpersonatePrivilege	2644	Soundcrd.exe
Token: SeCreateGlobalPrivilege	2644	Soundcrd.exe
Token: 33	2644	Soundcrd.exe
Token: 34	2644	Soundcrd.exe
Token: 35	2644	Soundcrd.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1852	3cc196ba98e8ecc881558e08e34f5e8725e58c4bdf0eb2e6ae92c57d900b5673N.exe
1508	Soundcrd.exe
2692	Soundcrd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1852 wrote to memory of 2792	1852	3cc196ba98e8ecc881558e08e34f5e8725e58c4bdf0eb2e6ae92c57d900b5673N.exe	30
PID 1852 wrote to memory of 2792	1852	3cc196ba98e8ecc881558e08e34f5e8725e58c4bdf0eb2e6ae92c57d900b5673N.exe	30
PID 1852 wrote to memory of 2792	1852	3cc196ba98e8ecc881558e08e34f5e8725e58c4bdf0eb2e6ae92c57d900b5673N.exe	30
PID 1852 wrote to memory of 2792	1852	3cc196ba98e8ecc881558e08e34f5e8725e58c4bdf0eb2e6ae92c57d900b5673N.exe	30
PID 2792 wrote to memory of 2928	2792	cmd.exe	32
PID 2792 wrote to memory of 2928	2792	cmd.exe	32
PID 2792 wrote to memory of 2928	2792	cmd.exe	32
PID 2792 wrote to memory of 2928	2792	cmd.exe	32
PID 1852 wrote to memory of 1508	1852	3cc196ba98e8ecc881558e08e34f5e8725e58c4bdf0eb2e6ae92c57d900b5673N.exe	33
PID 1852 wrote to memory of 1508	1852	3cc196ba98e8ecc881558e08e34f5e8725e58c4bdf0eb2e6ae92c57d900b5673N.exe	33
PID 1852 wrote to memory of 1508	1852	3cc196ba98e8ecc881558e08e34f5e8725e58c4bdf0eb2e6ae92c57d900b5673N.exe	33
PID 1852 wrote to memory of 1508	1852	3cc196ba98e8ecc881558e08e34f5e8725e58c4bdf0eb2e6ae92c57d900b5673N.exe	33
PID 1508 wrote to memory of 2644	1508	Soundcrd.exe	34
PID 1508 wrote to memory of 2644	1508	Soundcrd.exe	34
PID 1508 wrote to memory of 2644	1508	Soundcrd.exe	34
PID 1508 wrote to memory of 2644	1508	Soundcrd.exe	34
PID 1508 wrote to memory of 2644	1508	Soundcrd.exe	34
PID 1508 wrote to memory of 2644	1508	Soundcrd.exe	34
PID 1508 wrote to memory of 2644	1508	Soundcrd.exe	34
PID 1508 wrote to memory of 2644	1508	Soundcrd.exe	34
PID 1508 wrote to memory of 2644	1508	Soundcrd.exe	34
PID 1508 wrote to memory of 2692	1508	Soundcrd.exe	35
PID 1508 wrote to memory of 2692	1508	Soundcrd.exe	35
PID 1508 wrote to memory of 2692	1508	Soundcrd.exe	35
PID 1508 wrote to memory of 2692	1508	Soundcrd.exe	35
PID 1508 wrote to memory of 2692	1508	Soundcrd.exe	35
PID 1508 wrote to memory of 2692	1508	Soundcrd.exe	35
PID 1508 wrote to memory of 2692	1508	Soundcrd.exe	35
PID 1508 wrote to memory of 2692	1508	Soundcrd.exe	35
PID 1508 wrote to memory of 2692	1508	Soundcrd.exe	35

C:\Users\Admin\AppData\Local\Temp\3cc196ba98e8ecc881558e08e34f5e8725e58c4bdf0eb2e6ae92c57d900b5673N.exe
"C:\Users\Admin\AppData\Local\Temp\3cc196ba98e8ecc881558e08e34f5e8725e58c4bdf0eb2e6ae92c57d900b5673N.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1852
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\wKhpt.bat" "
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2792
- - 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:2928
- C:\Users\Admin\AppData\Roaming\Soundcrd.exe
  "C:\Users\Admin\AppData\Roaming\Soundcrd.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1508
- - 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:2644
- - 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:2692

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\wKhpt.bat

Filesize
139B

MD5
173bcce4810d4901872d0ef4f0bfea4e

SHA1
561b03fdfe68b6419fddf57f32e1aab9a6126a2f

SHA256
10ea37eceabbe80fe9814280b66b957636951dbeeed18a9b4d50a1d24a6f1d1d

SHA512
2401e0a5e3f7bf590a0767449da2249d09717e8c1cb71a7475e81d9615580001cfc38705cd1a5b4edc33f7df043bf195e28e4a5442a32bc879dffc6473bd545e

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

Filesize
574KB

MD5
b46a3cf79bbfa13f22e8a9d3f8005e90

SHA1
27ea6aff404b9e7f0c6d8b02baf4682f47bb979c

SHA256
10f2a259f9d0a25a7c20790e0c4540706a19bde05a17a6ab3b1142f2dffdc667

SHA512
4d900fcca037598b5bee1ec3cb030aaeff66a59f5a49e6d5c45665b6b687014583d975128c728b6c7f71e96aeb962451d85124eef3d54fc3c36e4956e25c7449

Download Submit
memory/1508-63-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/1508-48-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/1852-42-0x0000000003410000-0x00000000037FA000-memory.dmp

Filesize
3.9MB

Download
memory/1852-43-0x0000000003410000-0x00000000037FA000-memory.dmp

Filesize
3.9MB

Download
memory/1852-47-0x0000000003410000-0x00000000037FA000-memory.dmp

Filesize
3.9MB

Download
memory/1852-46-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/1852-0-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/2644-69-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2644-72-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2644-90-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2644-86-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2644-59-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2644-82-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2644-66-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2644-68-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2644-67-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2644-54-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2644-70-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2644-71-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2644-78-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2644-52-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2692-73-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2692-55-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2692-60-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2692-61-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads