darkcomet | 0cf7eda61bb962e320470af8441123db0253eb6e2f47302983044ec035b1891b

Analysis

max time kernel
149s
max time network
141s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
19/10/2024, 18:31

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General

Target

0cf7eda61bb962e320470af8441123db0253eb6e2f47302983044ec035b1891b.exe
Size

592KB
MD5

4c07b73b8f0a036675ea254cb9fe3417
SHA1

838522dc8f95c2ee78bc9bc786c6d1c6cc8e3f03
SHA256

0cf7eda61bb962e320470af8441123db0253eb6e2f47302983044ec035b1891b
SHA512

bd9308617edbe69fbd5ef67e39dbd248ce9af6a1264ab544394f44b7aac975fa3b14a5d780a2d06d682f35bb01a429f5a70fa70b390169343831d2b40a4ee573
SSDEEP

12288:wcWRJxhIUKofd9S88itJsL6s8GwUF81yn0FI/6IC0XoSv:TW/xhIUKofSytJsL6HUP0OHCU

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

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
2808	Soundcrd.exe
2632	Soundcrd.exe
1784	Soundcrd.exe

Loads dropped DLL 7 IoCs

pid	Process
1984	0cf7eda61bb962e320470af8441123db0253eb6e2f47302983044ec035b1891b.exe
1984	0cf7eda61bb962e320470af8441123db0253eb6e2f47302983044ec035b1891b.exe
1984	0cf7eda61bb962e320470af8441123db0253eb6e2f47302983044ec035b1891b.exe
1984	0cf7eda61bb962e320470af8441123db0253eb6e2f47302983044ec035b1891b.exe
1984	0cf7eda61bb962e320470af8441123db0253eb6e2f47302983044ec035b1891b.exe
2808	Soundcrd.exe
2808	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-1-5-21-3063565911-2056067323-3330884624-1000\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 2808 set thread context of 2632	2808	Soundcrd.exe	34
PID 2808 set thread context of 1784	2808	Soundcrd.exe	35

UPX packed file 25 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1984-0-0x0000000000400000-0x00000000007EB000-memory.dmp	upx
behavioral1/files/0x00090000000160da-27.dat	upx
behavioral1/memory/1984-42-0x0000000003980000-0x0000000003D6B000-memory.dmp	upx
behavioral1/memory/1984-47-0x0000000000400000-0x00000000007EB000-memory.dmp	upx
behavioral1/memory/2632-54-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2632-52-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2632-55-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2632-60-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2632-58-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2632-57-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2632-72-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2632-71-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2632-68-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/1784-67-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2808-65-0x0000000000400000-0x00000000007EB000-memory.dmp	upx
behavioral1/memory/1784-64-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/1784-61-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2632-73-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/1784-75-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2632-78-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2632-82-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2632-86-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2632-90-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2632-94-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2632-98-0x0000000000400000-0x00000000004B5000-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	0cf7eda61bb962e320470af8441123db0253eb6e2f47302983044ec035b1891b.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	2632	Soundcrd.exe
Token: SeSecurityPrivilege	2632	Soundcrd.exe
Token: SeTakeOwnershipPrivilege	2632	Soundcrd.exe
Token: SeLoadDriverPrivilege	2632	Soundcrd.exe
Token: SeSystemProfilePrivilege	2632	Soundcrd.exe
Token: SeSystemtimePrivilege	2632	Soundcrd.exe
Token: SeProfSingleProcessPrivilege	2632	Soundcrd.exe
Token: SeIncBasePriorityPrivilege	2632	Soundcrd.exe
Token: SeCreatePagefilePrivilege	2632	Soundcrd.exe
Token: SeBackupPrivilege	2632	Soundcrd.exe
Token: SeRestorePrivilege	2632	Soundcrd.exe
Token: SeShutdownPrivilege	2632	Soundcrd.exe
Token: SeDebugPrivilege	2632	Soundcrd.exe
Token: SeSystemEnvironmentPrivilege	2632	Soundcrd.exe
Token: SeChangeNotifyPrivilege	2632	Soundcrd.exe
Token: SeRemoteShutdownPrivilege	2632	Soundcrd.exe
Token: SeUndockPrivilege	2632	Soundcrd.exe
Token: SeManageVolumePrivilege	2632	Soundcrd.exe
Token: SeImpersonatePrivilege	2632	Soundcrd.exe
Token: SeCreateGlobalPrivilege	2632	Soundcrd.exe
Token: 33	2632	Soundcrd.exe
Token: 34	2632	Soundcrd.exe
Token: 35	2632	Soundcrd.exe
Token: SeDebugPrivilege	1784	Soundcrd.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1984	0cf7eda61bb962e320470af8441123db0253eb6e2f47302983044ec035b1891b.exe
2808	Soundcrd.exe
1784	Soundcrd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1984 wrote to memory of 1708	1984	0cf7eda61bb962e320470af8441123db0253eb6e2f47302983044ec035b1891b.exe	30
PID 1984 wrote to memory of 1708	1984	0cf7eda61bb962e320470af8441123db0253eb6e2f47302983044ec035b1891b.exe	30
PID 1984 wrote to memory of 1708	1984	0cf7eda61bb962e320470af8441123db0253eb6e2f47302983044ec035b1891b.exe	30
PID 1984 wrote to memory of 1708	1984	0cf7eda61bb962e320470af8441123db0253eb6e2f47302983044ec035b1891b.exe	30
PID 1708 wrote to memory of 1968	1708	cmd.exe	32
PID 1708 wrote to memory of 1968	1708	cmd.exe	32
PID 1708 wrote to memory of 1968	1708	cmd.exe	32
PID 1708 wrote to memory of 1968	1708	cmd.exe	32
PID 1984 wrote to memory of 2808	1984	0cf7eda61bb962e320470af8441123db0253eb6e2f47302983044ec035b1891b.exe	33
PID 1984 wrote to memory of 2808	1984	0cf7eda61bb962e320470af8441123db0253eb6e2f47302983044ec035b1891b.exe	33
PID 1984 wrote to memory of 2808	1984	0cf7eda61bb962e320470af8441123db0253eb6e2f47302983044ec035b1891b.exe	33
PID 1984 wrote to memory of 2808	1984	0cf7eda61bb962e320470af8441123db0253eb6e2f47302983044ec035b1891b.exe	33
PID 2808 wrote to memory of 2632	2808	Soundcrd.exe	34
PID 2808 wrote to memory of 2632	2808	Soundcrd.exe	34
PID 2808 wrote to memory of 2632	2808	Soundcrd.exe	34
PID 2808 wrote to memory of 2632	2808	Soundcrd.exe	34
PID 2808 wrote to memory of 2632	2808	Soundcrd.exe	34
PID 2808 wrote to memory of 2632	2808	Soundcrd.exe	34
PID 2808 wrote to memory of 2632	2808	Soundcrd.exe	34
PID 2808 wrote to memory of 2632	2808	Soundcrd.exe	34
PID 2808 wrote to memory of 2632	2808	Soundcrd.exe	34
PID 2808 wrote to memory of 1784	2808	Soundcrd.exe	35
PID 2808 wrote to memory of 1784	2808	Soundcrd.exe	35
PID 2808 wrote to memory of 1784	2808	Soundcrd.exe	35
PID 2808 wrote to memory of 1784	2808	Soundcrd.exe	35
PID 2808 wrote to memory of 1784	2808	Soundcrd.exe	35
PID 2808 wrote to memory of 1784	2808	Soundcrd.exe	35
PID 2808 wrote to memory of 1784	2808	Soundcrd.exe	35
PID 2808 wrote to memory of 1784	2808	Soundcrd.exe	35
PID 2808 wrote to memory of 1784	2808	Soundcrd.exe	35

C:\Users\Admin\AppData\Local\Temp\0cf7eda61bb962e320470af8441123db0253eb6e2f47302983044ec035b1891b.exe
"C:\Users\Admin\AppData\Local\Temp\0cf7eda61bb962e320470af8441123db0253eb6e2f47302983044ec035b1891b.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1984
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\JETpD.bat" "
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1708
- - 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:1968
- 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:2808
- - 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:2632
- - 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:1784

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\JETpD.bat

Filesize
139B

MD5
173bcce4810d4901872d0ef4f0bfea4e

SHA1
561b03fdfe68b6419fddf57f32e1aab9a6126a2f

SHA256
10ea37eceabbe80fe9814280b66b957636951dbeeed18a9b4d50a1d24a6f1d1d

SHA512
2401e0a5e3f7bf590a0767449da2249d09717e8c1cb71a7475e81d9615580001cfc38705cd1a5b4edc33f7df043bf195e28e4a5442a32bc879dffc6473bd545e

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

Filesize
592KB

MD5
9eb2ee2f8055cf3886a7a21386db7547

SHA1
b0e3f47b853a8fe19bc1065d8eb2a4ecc9e82752

SHA256
6d597e55feb65ad5f164056609bf1ded52a11b3c360865bf9764b79660f5b49e

SHA512
a8623d931f7a30acf796ad6093b0323051b03b59119794a653ae037c748859f694e9f3c56e77202e253a3b0e36c5c03a6b763153ec95d69be4df7803b432b2ed

Download Submit
memory/1784-75-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1784-61-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1784-64-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1784-67-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1984-0-0x0000000000400000-0x00000000007EB000-memory.dmp

Filesize
3.9MB

Download
memory/1984-44-0x0000000003980000-0x0000000003D6B000-memory.dmp

Filesize
3.9MB

Download
memory/1984-43-0x0000000003980000-0x0000000003D6B000-memory.dmp

Filesize
3.9MB

Download
memory/1984-42-0x0000000003980000-0x0000000003D6B000-memory.dmp

Filesize
3.9MB

Download
memory/1984-47-0x0000000000400000-0x00000000007EB000-memory.dmp

Filesize
3.9MB

Download
memory/2632-72-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2632-52-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2632-57-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2632-98-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2632-71-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2632-68-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2632-60-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2632-94-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2632-55-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2632-58-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2632-73-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2632-54-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2632-78-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2632-82-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2632-86-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2632-90-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2808-65-0x0000000000400000-0x00000000007EB000-memory.dmp

Filesize
3.9MB

Download
memory/2808-59-0x0000000002CA0000-0x000000000308B000-memory.dmp

Filesize
3.9MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads