darkcomet | 3c753955fb74bccd65c30f3b57e209a7e8330c7292b8deea8de350b252b16e3c

Analysis

max time kernel
143s
max time network
144s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
19-12-2024 05:12

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General

Target

3c753955fb74bccd65c30f3b57e209a7e8330c7292b8deea8de350b252b16e3c.exe
Size

574KB
MD5

2db2f3af697ce2a9b43aa324d9f2f607
SHA1

8fa6e9f948f2fab5ed5bf9cc0ff564973cd7c89d
SHA256

3c753955fb74bccd65c30f3b57e209a7e8330c7292b8deea8de350b252b16e3c
SHA512

b5199fd6d2f3ae0c88bf7cdce66c49db978b32f0bde3d0a2a4b8f06b8c89690d6cf3e67efcd505e458c4986a2a00bfdbba338d52a4260cbd8a2cc863ad465b44
SSDEEP

12288:zCyEHAWAdljmJqkC3xMX85FSR2f9A08NIX+Vjwd4G/3z1ET4m3HdsubV:zFhWAfn22m0eD1GPz8Hdxx

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
2736	Soundcrd.exe
2652	Soundcrd.exe
2724	Soundcrd.exe

Loads dropped DLL 6 IoCs

pid	Process
2548	3c753955fb74bccd65c30f3b57e209a7e8330c7292b8deea8de350b252b16e3c.exe
2548	3c753955fb74bccd65c30f3b57e209a7e8330c7292b8deea8de350b252b16e3c.exe
2548	3c753955fb74bccd65c30f3b57e209a7e8330c7292b8deea8de350b252b16e3c.exe
2548	3c753955fb74bccd65c30f3b57e209a7e8330c7292b8deea8de350b252b16e3c.exe
2548	3c753955fb74bccd65c30f3b57e209a7e8330c7292b8deea8de350b252b16e3c.exe
2736	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-1-5-21-2703099537-420551529-3771253338-1000\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 2736 set thread context of 2652	2736	Soundcrd.exe	33
PID 2736 set thread context of 2724	2736	Soundcrd.exe	34

UPX packed file 21 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2652-55-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2652-57-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2652-58-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2652-60-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2652-61-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2652-59-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2652-62-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2652-64-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2652-63-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2724-65-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2724-67-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2724-70-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2724-68-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2652-74-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2724-76-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2652-79-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2652-83-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2652-87-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2652-91-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2652-97-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2652-101-0x0000000000400000-0x00000000004B5000-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	3c753955fb74bccd65c30f3b57e209a7e8330c7292b8deea8de350b252b16e3c.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
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 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
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	Soundcrd.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	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	2652	Soundcrd.exe
Token: SeSecurityPrivilege	2652	Soundcrd.exe
Token: SeTakeOwnershipPrivilege	2652	Soundcrd.exe
Token: SeLoadDriverPrivilege	2652	Soundcrd.exe
Token: SeSystemProfilePrivilege	2652	Soundcrd.exe
Token: SeSystemtimePrivilege	2652	Soundcrd.exe
Token: SeProfSingleProcessPrivilege	2652	Soundcrd.exe
Token: SeIncBasePriorityPrivilege	2652	Soundcrd.exe
Token: SeCreatePagefilePrivilege	2652	Soundcrd.exe
Token: SeBackupPrivilege	2652	Soundcrd.exe
Token: SeRestorePrivilege	2652	Soundcrd.exe
Token: SeShutdownPrivilege	2652	Soundcrd.exe
Token: SeDebugPrivilege	2652	Soundcrd.exe
Token: SeSystemEnvironmentPrivilege	2652	Soundcrd.exe
Token: SeChangeNotifyPrivilege	2652	Soundcrd.exe
Token: SeRemoteShutdownPrivilege	2652	Soundcrd.exe
Token: SeUndockPrivilege	2652	Soundcrd.exe
Token: SeManageVolumePrivilege	2652	Soundcrd.exe
Token: SeImpersonatePrivilege	2652	Soundcrd.exe
Token: SeCreateGlobalPrivilege	2652	Soundcrd.exe
Token: 33	2652	Soundcrd.exe
Token: 34	2652	Soundcrd.exe
Token: 35	2652	Soundcrd.exe
Token: SeDebugPrivilege	2724	Soundcrd.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2548	3c753955fb74bccd65c30f3b57e209a7e8330c7292b8deea8de350b252b16e3c.exe
2736	Soundcrd.exe
2724	Soundcrd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2548 wrote to memory of 2712	2548	3c753955fb74bccd65c30f3b57e209a7e8330c7292b8deea8de350b252b16e3c.exe	29
PID 2548 wrote to memory of 2712	2548	3c753955fb74bccd65c30f3b57e209a7e8330c7292b8deea8de350b252b16e3c.exe	29
PID 2548 wrote to memory of 2712	2548	3c753955fb74bccd65c30f3b57e209a7e8330c7292b8deea8de350b252b16e3c.exe	29
PID 2548 wrote to memory of 2712	2548	3c753955fb74bccd65c30f3b57e209a7e8330c7292b8deea8de350b252b16e3c.exe	29
PID 2712 wrote to memory of 2880	2712	cmd.exe	31
PID 2712 wrote to memory of 2880	2712	cmd.exe	31
PID 2712 wrote to memory of 2880	2712	cmd.exe	31
PID 2712 wrote to memory of 2880	2712	cmd.exe	31
PID 2548 wrote to memory of 2736	2548	3c753955fb74bccd65c30f3b57e209a7e8330c7292b8deea8de350b252b16e3c.exe	32
PID 2548 wrote to memory of 2736	2548	3c753955fb74bccd65c30f3b57e209a7e8330c7292b8deea8de350b252b16e3c.exe	32
PID 2548 wrote to memory of 2736	2548	3c753955fb74bccd65c30f3b57e209a7e8330c7292b8deea8de350b252b16e3c.exe	32
PID 2548 wrote to memory of 2736	2548	3c753955fb74bccd65c30f3b57e209a7e8330c7292b8deea8de350b252b16e3c.exe	32
PID 2736 wrote to memory of 2652	2736	Soundcrd.exe	33
PID 2736 wrote to memory of 2652	2736	Soundcrd.exe	33
PID 2736 wrote to memory of 2652	2736	Soundcrd.exe	33
PID 2736 wrote to memory of 2652	2736	Soundcrd.exe	33
PID 2736 wrote to memory of 2652	2736	Soundcrd.exe	33
PID 2736 wrote to memory of 2652	2736	Soundcrd.exe	33
PID 2736 wrote to memory of 2652	2736	Soundcrd.exe	33
PID 2736 wrote to memory of 2652	2736	Soundcrd.exe	33
PID 2736 wrote to memory of 2652	2736	Soundcrd.exe	33
PID 2736 wrote to memory of 2724	2736	Soundcrd.exe	34
PID 2736 wrote to memory of 2724	2736	Soundcrd.exe	34
PID 2736 wrote to memory of 2724	2736	Soundcrd.exe	34
PID 2736 wrote to memory of 2724	2736	Soundcrd.exe	34
PID 2736 wrote to memory of 2724	2736	Soundcrd.exe	34
PID 2736 wrote to memory of 2724	2736	Soundcrd.exe	34
PID 2736 wrote to memory of 2724	2736	Soundcrd.exe	34
PID 2736 wrote to memory of 2724	2736	Soundcrd.exe	34
PID 2736 wrote to memory of 2724	2736	Soundcrd.exe	34

C:\Users\Admin\AppData\Local\Temp\3c753955fb74bccd65c30f3b57e209a7e8330c7292b8deea8de350b252b16e3c.exe
"C:\Users\Admin\AppData\Local\Temp\3c753955fb74bccd65c30f3b57e209a7e8330c7292b8deea8de350b252b16e3c.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2548
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\ovwkK.bat" "
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2712
- - 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:2880
- 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:2736
- - 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:2652
- - 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:2724

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

Replay Monitor

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Downloads

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

Filesize
139B

MD5
173bcce4810d4901872d0ef4f0bfea4e

SHA1
561b03fdfe68b6419fddf57f32e1aab9a6126a2f

SHA256
10ea37eceabbe80fe9814280b66b957636951dbeeed18a9b4d50a1d24a6f1d1d

SHA512
2401e0a5e3f7bf590a0767449da2249d09717e8c1cb71a7475e81d9615580001cfc38705cd1a5b4edc33f7df043bf195e28e4a5442a32bc879dffc6473bd545e

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

Filesize
574KB

MD5
d633445014074ea8a9a839b32836b366

SHA1
9b68d5d4ef1f724e47b3112157c38702bf37d677

SHA256
42d7398fade9346b1a98b112a08bfbb655522ccd48730ead89ae439ed03270d8

SHA512
7064fa58b16c790cdffa4c44458f8e4c5ce085471fb6f6595259188afe24841d9e71b4bbf5a0ad39040302f6b7c09f129b6eee6d651d5d848c25bf7cbdddee00

Download Submit
memory/2548-43-0x0000000003A40000-0x0000000003E2A000-memory.dmp

Filesize
3.9MB

Download
memory/2548-42-0x0000000003A40000-0x0000000003E2A000-memory.dmp

Filesize
3.9MB

Download
memory/2548-0-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/2548-46-0x0000000003A40000-0x0000000003E2A000-memory.dmp

Filesize
3.9MB

Download
memory/2548-49-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/2548-45-0x0000000003A40000-0x0000000003E2A000-memory.dmp

Filesize
3.9MB

Download
memory/2652-62-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2652-74-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2652-55-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2652-57-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2652-58-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2652-60-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2652-61-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2652-59-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2652-101-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2652-64-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2652-63-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2652-97-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2652-91-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2652-87-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2652-83-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2652-79-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2724-76-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2724-68-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2724-70-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2724-67-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2724-65-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2736-54-0x0000000002BD0000-0x0000000002FBA000-memory.dmp

Filesize
3.9MB

Download
memory/2736-73-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/2736-48-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads