darkcomet | 066c82209751f28e12f986d5c73620a017fde70f7c7ce1f4acded0256e2801ad

Analysis

max time kernel
112s
max time network
116s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
16/02/2025, 04:23

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General

Target

066c82209751f28e12f986d5c73620a017fde70f7c7ce1f4acded0256e2801adN.exe
Size

574KB
MD5

b02aeb7f8e22fcabe1148a92c4fbbfb0
SHA1

b1993bbdcae4fafea2cd6b5400bf70ec2eeba810
SHA256

066c82209751f28e12f986d5c73620a017fde70f7c7ce1f4acded0256e2801ad
SHA512

dc619b933c178acb45bf06d7791ed34161715014de6e3e25499edab56b8bf8bd04204cf9a13c1b05c7a98b4a2d3b6927f675e675bc932ce6c818699afc2545b1
SSDEEP

12288:zCyEHAWAdljmJqkC3xMX85FSR2f9A08NIX+Vjwd4G/3z1ET4m3HdsubK:zFhWAfn22m0eD1GPz8Hdxe

Score

10^/10

darkcomet whale discovery persistence rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

Whale

ygo.no-ip.info:1604

Mutex

DC_MUTEX-KF2Q2MJ

Attributes

gencode
YxpcQq6jqoiB
install
false
offline_keylogger
false
persistence
false

rc4.plain

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
2320	Soundcrd.exe
2484	Soundcrd.exe
2772	Soundcrd.exe

Loads dropped DLL 7 IoCs

pid	Process
1780	066c82209751f28e12f986d5c73620a017fde70f7c7ce1f4acded0256e2801adN.exe
1780	066c82209751f28e12f986d5c73620a017fde70f7c7ce1f4acded0256e2801adN.exe
1780	066c82209751f28e12f986d5c73620a017fde70f7c7ce1f4acded0256e2801adN.exe
1780	066c82209751f28e12f986d5c73620a017fde70f7c7ce1f4acded0256e2801adN.exe
1780	066c82209751f28e12f986d5c73620a017fde70f7c7ce1f4acded0256e2801adN.exe
2320	Soundcrd.exe
2320	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-1-5-21-2872745919-2748461613-2989606286-1000\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 2320 set thread context of 2484	2320	Soundcrd.exe	34
PID 2320 set thread context of 2772	2320	Soundcrd.exe	35

UPX packed file 18 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2484-62-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2484-53-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2484-64-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2772-61-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2772-60-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2772-57-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2484-56-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2484-66-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2484-69-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2484-71-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2484-70-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2772-75-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2484-74-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2484-80-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2484-84-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2484-88-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2484-92-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2484-96-0x0000000000400000-0x00000000004B5000-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	Soundcrd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Soundcrd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	066c82209751f28e12f986d5c73620a017fde70f7c7ce1f4acded0256e2801adN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.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	2772	Soundcrd.exe
Token: SeIncreaseQuotaPrivilege	2484	Soundcrd.exe
Token: SeSecurityPrivilege	2484	Soundcrd.exe
Token: SeTakeOwnershipPrivilege	2484	Soundcrd.exe
Token: SeLoadDriverPrivilege	2484	Soundcrd.exe
Token: SeSystemProfilePrivilege	2484	Soundcrd.exe
Token: SeSystemtimePrivilege	2484	Soundcrd.exe
Token: SeProfSingleProcessPrivilege	2484	Soundcrd.exe
Token: SeIncBasePriorityPrivilege	2484	Soundcrd.exe
Token: SeCreatePagefilePrivilege	2484	Soundcrd.exe
Token: SeBackupPrivilege	2484	Soundcrd.exe
Token: SeRestorePrivilege	2484	Soundcrd.exe
Token: SeShutdownPrivilege	2484	Soundcrd.exe
Token: SeDebugPrivilege	2484	Soundcrd.exe
Token: SeSystemEnvironmentPrivilege	2484	Soundcrd.exe
Token: SeChangeNotifyPrivilege	2484	Soundcrd.exe
Token: SeRemoteShutdownPrivilege	2484	Soundcrd.exe
Token: SeUndockPrivilege	2484	Soundcrd.exe
Token: SeManageVolumePrivilege	2484	Soundcrd.exe
Token: SeImpersonatePrivilege	2484	Soundcrd.exe
Token: SeCreateGlobalPrivilege	2484	Soundcrd.exe
Token: 33	2484	Soundcrd.exe
Token: 34	2484	Soundcrd.exe
Token: 35	2484	Soundcrd.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1780	066c82209751f28e12f986d5c73620a017fde70f7c7ce1f4acded0256e2801adN.exe
2320	Soundcrd.exe
2772	Soundcrd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1780 wrote to memory of 2536	1780	066c82209751f28e12f986d5c73620a017fde70f7c7ce1f4acded0256e2801adN.exe	30
PID 1780 wrote to memory of 2536	1780	066c82209751f28e12f986d5c73620a017fde70f7c7ce1f4acded0256e2801adN.exe	30
PID 1780 wrote to memory of 2536	1780	066c82209751f28e12f986d5c73620a017fde70f7c7ce1f4acded0256e2801adN.exe	30
PID 1780 wrote to memory of 2536	1780	066c82209751f28e12f986d5c73620a017fde70f7c7ce1f4acded0256e2801adN.exe	30
PID 2536 wrote to memory of 2388	2536	cmd.exe	32
PID 2536 wrote to memory of 2388	2536	cmd.exe	32
PID 2536 wrote to memory of 2388	2536	cmd.exe	32
PID 2536 wrote to memory of 2388	2536	cmd.exe	32
PID 1780 wrote to memory of 2320	1780	066c82209751f28e12f986d5c73620a017fde70f7c7ce1f4acded0256e2801adN.exe	33
PID 1780 wrote to memory of 2320	1780	066c82209751f28e12f986d5c73620a017fde70f7c7ce1f4acded0256e2801adN.exe	33
PID 1780 wrote to memory of 2320	1780	066c82209751f28e12f986d5c73620a017fde70f7c7ce1f4acded0256e2801adN.exe	33
PID 1780 wrote to memory of 2320	1780	066c82209751f28e12f986d5c73620a017fde70f7c7ce1f4acded0256e2801adN.exe	33
PID 2320 wrote to memory of 2484	2320	Soundcrd.exe	34
PID 2320 wrote to memory of 2484	2320	Soundcrd.exe	34
PID 2320 wrote to memory of 2484	2320	Soundcrd.exe	34
PID 2320 wrote to memory of 2484	2320	Soundcrd.exe	34
PID 2320 wrote to memory of 2484	2320	Soundcrd.exe	34
PID 2320 wrote to memory of 2484	2320	Soundcrd.exe	34
PID 2320 wrote to memory of 2484	2320	Soundcrd.exe	34
PID 2320 wrote to memory of 2484	2320	Soundcrd.exe	34
PID 2320 wrote to memory of 2484	2320	Soundcrd.exe	34
PID 2320 wrote to memory of 2772	2320	Soundcrd.exe	35
PID 2320 wrote to memory of 2772	2320	Soundcrd.exe	35
PID 2320 wrote to memory of 2772	2320	Soundcrd.exe	35
PID 2320 wrote to memory of 2772	2320	Soundcrd.exe	35
PID 2320 wrote to memory of 2772	2320	Soundcrd.exe	35
PID 2320 wrote to memory of 2772	2320	Soundcrd.exe	35
PID 2320 wrote to memory of 2772	2320	Soundcrd.exe	35
PID 2320 wrote to memory of 2772	2320	Soundcrd.exe	35
PID 2320 wrote to memory of 2772	2320	Soundcrd.exe	35

C:\Users\Admin\AppData\Local\Temp\066c82209751f28e12f986d5c73620a017fde70f7c7ce1f4acded0256e2801adN.exe
"C:\Users\Admin\AppData\Local\Temp\066c82209751f28e12f986d5c73620a017fde70f7c7ce1f4acded0256e2801adN.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1780
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\rzMek.bat" "
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2536
- - 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:2388
- 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:2320
- - 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:2484
- - 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:2772

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\rzMek.bat

Filesize
139B

MD5
173bcce4810d4901872d0ef4f0bfea4e

SHA1
561b03fdfe68b6419fddf57f32e1aab9a6126a2f

SHA256
10ea37eceabbe80fe9814280b66b957636951dbeeed18a9b4d50a1d24a6f1d1d

SHA512
2401e0a5e3f7bf590a0767449da2249d09717e8c1cb71a7475e81d9615580001cfc38705cd1a5b4edc33f7df043bf195e28e4a5442a32bc879dffc6473bd545e

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

Filesize
574KB

MD5
21d7745d8b4d4480fea968b3043ca2ef

SHA1
b56a0f779bec087be97f0724c37cc3978f23418d

SHA256
2c874f39b19dd75d01f92b415a4ead82b1f6a913d488a9347fcc8b39d64c29e3

SHA512
2aa2cbcef8ec6ac2ca66a5964bea2306266746697e3818accfda66e7189ae793f78b2a8108703b51f9b77004873ca01094b04e88a95d434c1ac479be217f07ef

Download Submit
memory/1780-72-0x0000000003B60000-0x0000000003F4A000-memory.dmp

Filesize
3.9MB

Download
memory/1780-43-0x0000000003B60000-0x0000000003F4A000-memory.dmp

Filesize
3.9MB

Download
memory/1780-42-0x0000000003B60000-0x0000000003F4A000-memory.dmp

Filesize
3.9MB

Download
memory/1780-46-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/1780-0-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/1780-47-0x0000000003B60000-0x0000000003F4A000-memory.dmp

Filesize
3.9MB

Download
memory/2320-48-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/2320-73-0x0000000002D70000-0x000000000315A000-memory.dmp

Filesize
3.9MB

Download
memory/2320-65-0x0000000002D70000-0x000000000315A000-memory.dmp

Filesize
3.9MB

Download
memory/2320-63-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/2484-53-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2484-56-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2484-96-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2484-80-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2484-64-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2484-92-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2484-69-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2484-71-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2484-70-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2484-62-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2484-66-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2484-88-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2484-74-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2484-84-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2772-60-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2772-75-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2772-57-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2772-61-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads