darkcomet | 19c9322551012d00654a336a4fe26e9db7b49f2e604cf8bc4f5403936715ffbf

Analysis

max time kernel
52s
max time network
55s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
11/10/2024, 19:44

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General

Target

19c9322551012d00654a336a4fe26e9db7b49f2e604cf8bc4f5403936715ffbf.exe
Size

574KB
MD5

52053488556582bcd1276d266e1b48f2
SHA1

069ecd50ad51330a4b6b7e0865db9f63d25c1ebe
SHA256

19c9322551012d00654a336a4fe26e9db7b49f2e604cf8bc4f5403936715ffbf
SHA512

c82692d94731d4d4e189c01f05d92d077bbc19429f64eefce70f63e63ea44695c5ed878bb5cb0f60acaad11ba02f31fadbf25ffde263b159b696cdeeb9229147
SSDEEP

12288:zCyEHAWAdljmJqkC3xMX85FSR2f9A08NIX+Vjwd4G/3z1ET4m3HdsubX:zFhWAfn22m0eD1GPz8HdxD

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
2752	Soundcrd.exe
572	Soundcrd.exe
2640	Soundcrd.exe

Loads dropped DLL 7 IoCs

pid	Process
2128	19c9322551012d00654a336a4fe26e9db7b49f2e604cf8bc4f5403936715ffbf.exe
2128	19c9322551012d00654a336a4fe26e9db7b49f2e604cf8bc4f5403936715ffbf.exe
2128	19c9322551012d00654a336a4fe26e9db7b49f2e604cf8bc4f5403936715ffbf.exe
2128	19c9322551012d00654a336a4fe26e9db7b49f2e604cf8bc4f5403936715ffbf.exe
2128	19c9322551012d00654a336a4fe26e9db7b49f2e604cf8bc4f5403936715ffbf.exe
2752	Soundcrd.exe
2752	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 2752 set thread context of 572	2752	Soundcrd.exe	35
PID 2752 set thread context of 2640	2752	Soundcrd.exe	36

UPX packed file 16 IoCs

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

upx

resource	yara_rule
behavioral1/memory/572-55-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/572-57-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/572-60-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/572-63-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/572-62-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/572-64-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2640-66-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2640-73-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2640-70-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/572-68-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/572-65-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/572-59-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/572-76-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2640-78-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/572-81-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/572-85-0x0000000000400000-0x00000000004B5000-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	19c9322551012d00654a336a4fe26e9db7b49f2e604cf8bc4f5403936715ffbf.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 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: SeIncreaseQuotaPrivilege	572	Soundcrd.exe
Token: SeSecurityPrivilege	572	Soundcrd.exe
Token: SeTakeOwnershipPrivilege	572	Soundcrd.exe
Token: SeLoadDriverPrivilege	572	Soundcrd.exe
Token: SeSystemProfilePrivilege	572	Soundcrd.exe
Token: SeSystemtimePrivilege	572	Soundcrd.exe
Token: SeProfSingleProcessPrivilege	572	Soundcrd.exe
Token: SeIncBasePriorityPrivilege	572	Soundcrd.exe
Token: SeCreatePagefilePrivilege	572	Soundcrd.exe
Token: SeBackupPrivilege	572	Soundcrd.exe
Token: SeRestorePrivilege	572	Soundcrd.exe
Token: SeShutdownPrivilege	572	Soundcrd.exe
Token: SeDebugPrivilege	572	Soundcrd.exe
Token: SeSystemEnvironmentPrivilege	572	Soundcrd.exe
Token: SeChangeNotifyPrivilege	572	Soundcrd.exe
Token: SeRemoteShutdownPrivilege	572	Soundcrd.exe
Token: SeUndockPrivilege	572	Soundcrd.exe
Token: SeManageVolumePrivilege	572	Soundcrd.exe
Token: SeImpersonatePrivilege	572	Soundcrd.exe
Token: SeCreateGlobalPrivilege	572	Soundcrd.exe
Token: 33	572	Soundcrd.exe
Token: 34	572	Soundcrd.exe
Token: 35	572	Soundcrd.exe
Token: SeDebugPrivilege	2640	Soundcrd.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2128	19c9322551012d00654a336a4fe26e9db7b49f2e604cf8bc4f5403936715ffbf.exe
2752	Soundcrd.exe
2640	Soundcrd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2128 wrote to memory of 2520	2128	19c9322551012d00654a336a4fe26e9db7b49f2e604cf8bc4f5403936715ffbf.exe	31
PID 2128 wrote to memory of 2520	2128	19c9322551012d00654a336a4fe26e9db7b49f2e604cf8bc4f5403936715ffbf.exe	31
PID 2128 wrote to memory of 2520	2128	19c9322551012d00654a336a4fe26e9db7b49f2e604cf8bc4f5403936715ffbf.exe	31
PID 2128 wrote to memory of 2520	2128	19c9322551012d00654a336a4fe26e9db7b49f2e604cf8bc4f5403936715ffbf.exe	31
PID 2520 wrote to memory of 1740	2520	cmd.exe	33
PID 2520 wrote to memory of 1740	2520	cmd.exe	33
PID 2520 wrote to memory of 1740	2520	cmd.exe	33
PID 2520 wrote to memory of 1740	2520	cmd.exe	33
PID 2128 wrote to memory of 2752	2128	19c9322551012d00654a336a4fe26e9db7b49f2e604cf8bc4f5403936715ffbf.exe	34
PID 2128 wrote to memory of 2752	2128	19c9322551012d00654a336a4fe26e9db7b49f2e604cf8bc4f5403936715ffbf.exe	34
PID 2128 wrote to memory of 2752	2128	19c9322551012d00654a336a4fe26e9db7b49f2e604cf8bc4f5403936715ffbf.exe	34
PID 2128 wrote to memory of 2752	2128	19c9322551012d00654a336a4fe26e9db7b49f2e604cf8bc4f5403936715ffbf.exe	34
PID 2752 wrote to memory of 572	2752	Soundcrd.exe	35
PID 2752 wrote to memory of 572	2752	Soundcrd.exe	35
PID 2752 wrote to memory of 572	2752	Soundcrd.exe	35
PID 2752 wrote to memory of 572	2752	Soundcrd.exe	35
PID 2752 wrote to memory of 572	2752	Soundcrd.exe	35
PID 2752 wrote to memory of 572	2752	Soundcrd.exe	35
PID 2752 wrote to memory of 572	2752	Soundcrd.exe	35
PID 2752 wrote to memory of 572	2752	Soundcrd.exe	35
PID 2752 wrote to memory of 572	2752	Soundcrd.exe	35
PID 2752 wrote to memory of 2640	2752	Soundcrd.exe	36
PID 2752 wrote to memory of 2640	2752	Soundcrd.exe	36
PID 2752 wrote to memory of 2640	2752	Soundcrd.exe	36
PID 2752 wrote to memory of 2640	2752	Soundcrd.exe	36
PID 2752 wrote to memory of 2640	2752	Soundcrd.exe	36
PID 2752 wrote to memory of 2640	2752	Soundcrd.exe	36
PID 2752 wrote to memory of 2640	2752	Soundcrd.exe	36
PID 2752 wrote to memory of 2640	2752	Soundcrd.exe	36
PID 2752 wrote to memory of 2640	2752	Soundcrd.exe	36

C:\Users\Admin\AppData\Local\Temp\19c9322551012d00654a336a4fe26e9db7b49f2e604cf8bc4f5403936715ffbf.exe
"C:\Users\Admin\AppData\Local\Temp\19c9322551012d00654a336a4fe26e9db7b49f2e604cf8bc4f5403936715ffbf.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2128
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\CRBQL.bat" "
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2520
- - 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:1740
- 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:2752
- - 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:572
- - 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:2640

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\CRBQL.bat

Filesize
139B

MD5
173bcce4810d4901872d0ef4f0bfea4e

SHA1
561b03fdfe68b6419fddf57f32e1aab9a6126a2f

SHA256
10ea37eceabbe80fe9814280b66b957636951dbeeed18a9b4d50a1d24a6f1d1d

SHA512
2401e0a5e3f7bf590a0767449da2249d09717e8c1cb71a7475e81d9615580001cfc38705cd1a5b4edc33f7df043bf195e28e4a5442a32bc879dffc6473bd545e

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

Filesize
574KB

MD5
442fc80adebce765dcd3305e1bc4c394

SHA1
52400b382a821a819f407bf8422ee0acf8d6528f

SHA256
9485b6ebe26b528f8d2cca403a0b52aa7cd6c1225212617ff5f480e37426109c

SHA512
0fffc6177a274c8474189fb91190e9f22c016fcc23530f6298eeb7c1d8982482e4f8b8e51881c1df2d94dd585bc5a70d156008cf23c0fc70d8b80191530744a5

Download Submit
memory/572-65-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/572-76-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/572-85-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/572-81-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/572-64-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/572-59-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/572-62-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/572-68-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/572-55-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/572-57-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/572-60-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/572-63-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2128-0-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/2128-45-0x00000000039F0000-0x0000000003DDA000-memory.dmp

Filesize
3.9MB

Download
memory/2128-49-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/2128-44-0x00000000039F0000-0x0000000003DDA000-memory.dmp

Filesize
3.9MB

Download
memory/2128-43-0x00000000039F0000-0x0000000003DDA000-memory.dmp

Filesize
3.9MB

Download
memory/2128-42-0x00000000039F0000-0x0000000003DDA000-memory.dmp

Filesize
3.9MB

Download
memory/2640-66-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2640-70-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2640-73-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2640-78-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2752-61-0x0000000002C20000-0x000000000300A000-memory.dmp

Filesize
3.9MB

Download
memory/2752-72-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/2752-47-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/2752-54-0x0000000002B20000-0x0000000002F0A000-memory.dmp

Filesize
3.9MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads