darkcomet | 1b9e0310ae9b74f532576fd72477ea5b57dc3df05b2929e0e253d75bc2c9e7c7

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
19-12-2024 03:24

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General

Target

1b9e0310ae9b74f532576fd72477ea5b57dc3df05b2929e0e253d75bc2c9e7c7N.exe
Size

574KB
MD5

266e4f27db05b73cb4e2ef9730960120
SHA1

094441f06a00b1c898e29087712268a96cfbbf49
SHA256

1b9e0310ae9b74f532576fd72477ea5b57dc3df05b2929e0e253d75bc2c9e7c7
SHA512

c5cd84f6c14390394c662b3a53bb014424e4b3c1fc6eda8cc915555a77ec07392998cfdcdbd864b4fba747355e66e4dc99cd204ba3ae0ab1db1a291fb1afaa9e
SSDEEP

12288:zCyEHAWAdljmJqkC3xMX85FSR2f9A08NIX+Vjwd4G/3z1ET4m3Hdsub/:zFhWAfn22m0eD1GPz8HdxT

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
2724	Soundcrd.exe
2652	Soundcrd.exe
2664	Soundcrd.exe

Loads dropped DLL 7 IoCs

pid	Process
2372	1b9e0310ae9b74f532576fd72477ea5b57dc3df05b2929e0e253d75bc2c9e7c7N.exe
2372	1b9e0310ae9b74f532576fd72477ea5b57dc3df05b2929e0e253d75bc2c9e7c7N.exe
2372	1b9e0310ae9b74f532576fd72477ea5b57dc3df05b2929e0e253d75bc2c9e7c7N.exe
2372	1b9e0310ae9b74f532576fd72477ea5b57dc3df05b2929e0e253d75bc2c9e7c7N.exe
2372	1b9e0310ae9b74f532576fd72477ea5b57dc3df05b2929e0e253d75bc2c9e7c7N.exe
2724	Soundcrd.exe
2724	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-1-5-21-2039016743-699959520-214465309-1000\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 2724 set thread context of 2652	2724	Soundcrd.exe	34
PID 2724 set thread context of 2664	2724	Soundcrd.exe	35

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2664-69-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2652-53-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2664-66-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2664-65-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2652-70-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2664-61-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2652-58-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2652-56-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2652-72-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2652-75-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2652-74-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2652-73-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2652-71-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2652-76-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2664-79-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2652-82-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2652-86-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2652-90-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2652-94-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2652-98-0x0000000000400000-0x00000000004B5000-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	Soundcrd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Soundcrd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1b9e0310ae9b74f532576fd72477ea5b57dc3df05b2929e0e253d75bc2c9e7c7N.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

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	2664	Soundcrd.exe
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

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2372	1b9e0310ae9b74f532576fd72477ea5b57dc3df05b2929e0e253d75bc2c9e7c7N.exe
2724	Soundcrd.exe
2664	Soundcrd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2372 wrote to memory of 2844	2372	1b9e0310ae9b74f532576fd72477ea5b57dc3df05b2929e0e253d75bc2c9e7c7N.exe	30
PID 2372 wrote to memory of 2844	2372	1b9e0310ae9b74f532576fd72477ea5b57dc3df05b2929e0e253d75bc2c9e7c7N.exe	30
PID 2372 wrote to memory of 2844	2372	1b9e0310ae9b74f532576fd72477ea5b57dc3df05b2929e0e253d75bc2c9e7c7N.exe	30
PID 2372 wrote to memory of 2844	2372	1b9e0310ae9b74f532576fd72477ea5b57dc3df05b2929e0e253d75bc2c9e7c7N.exe	30
PID 2844 wrote to memory of 2992	2844	cmd.exe	32
PID 2844 wrote to memory of 2992	2844	cmd.exe	32
PID 2844 wrote to memory of 2992	2844	cmd.exe	32
PID 2844 wrote to memory of 2992	2844	cmd.exe	32
PID 2372 wrote to memory of 2724	2372	1b9e0310ae9b74f532576fd72477ea5b57dc3df05b2929e0e253d75bc2c9e7c7N.exe	33
PID 2372 wrote to memory of 2724	2372	1b9e0310ae9b74f532576fd72477ea5b57dc3df05b2929e0e253d75bc2c9e7c7N.exe	33
PID 2372 wrote to memory of 2724	2372	1b9e0310ae9b74f532576fd72477ea5b57dc3df05b2929e0e253d75bc2c9e7c7N.exe	33
PID 2372 wrote to memory of 2724	2372	1b9e0310ae9b74f532576fd72477ea5b57dc3df05b2929e0e253d75bc2c9e7c7N.exe	33
PID 2724 wrote to memory of 2652	2724	Soundcrd.exe	34
PID 2724 wrote to memory of 2652	2724	Soundcrd.exe	34
PID 2724 wrote to memory of 2652	2724	Soundcrd.exe	34
PID 2724 wrote to memory of 2652	2724	Soundcrd.exe	34
PID 2724 wrote to memory of 2652	2724	Soundcrd.exe	34
PID 2724 wrote to memory of 2652	2724	Soundcrd.exe	34
PID 2724 wrote to memory of 2652	2724	Soundcrd.exe	34
PID 2724 wrote to memory of 2652	2724	Soundcrd.exe	34
PID 2724 wrote to memory of 2652	2724	Soundcrd.exe	34
PID 2724 wrote to memory of 2664	2724	Soundcrd.exe	35
PID 2724 wrote to memory of 2664	2724	Soundcrd.exe	35
PID 2724 wrote to memory of 2664	2724	Soundcrd.exe	35
PID 2724 wrote to memory of 2664	2724	Soundcrd.exe	35
PID 2724 wrote to memory of 2664	2724	Soundcrd.exe	35
PID 2724 wrote to memory of 2664	2724	Soundcrd.exe	35
PID 2724 wrote to memory of 2664	2724	Soundcrd.exe	35
PID 2724 wrote to memory of 2664	2724	Soundcrd.exe	35
PID 2724 wrote to memory of 2664	2724	Soundcrd.exe	35

C:\Users\Admin\AppData\Local\Temp\1b9e0310ae9b74f532576fd72477ea5b57dc3df05b2929e0e253d75bc2c9e7c7N.exe
"C:\Users\Admin\AppData\Local\Temp\1b9e0310ae9b74f532576fd72477ea5b57dc3df05b2929e0e253d75bc2c9e7c7N.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2372
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\rMelH.bat" "
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2844
- - 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:2992
- 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:2724
- - 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:2664

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\rMelH.bat

Filesize
139B

MD5
173bcce4810d4901872d0ef4f0bfea4e

SHA1
561b03fdfe68b6419fddf57f32e1aab9a6126a2f

SHA256
10ea37eceabbe80fe9814280b66b957636951dbeeed18a9b4d50a1d24a6f1d1d

SHA512
2401e0a5e3f7bf590a0767449da2249d09717e8c1cb71a7475e81d9615580001cfc38705cd1a5b4edc33f7df043bf195e28e4a5442a32bc879dffc6473bd545e

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

Filesize
574KB

MD5
795c26d598967905078984714c818cf1

SHA1
c15799f478d1122d0ad83d96fb029cb596536a62

SHA256
9f4a8d6d7a652a4ef96d75a4096bab1d30e2cab53ebaa24de4d73c380831bbcc

SHA512
049b9636291136f93686ec37d6768466f66ed22fcec1a030023e148b5276b192d46adfb09128ef201bc926a8aa1403efd1146daa16bf485747afa21ce0dc3af2

Download Submit
memory/2372-51-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/2372-44-0x0000000003A40000-0x0000000003E2A000-memory.dmp

Filesize
3.9MB

Download
memory/2372-43-0x0000000003A40000-0x0000000003E2A000-memory.dmp

Filesize
3.9MB

Download
memory/2372-49-0x0000000003A40000-0x0000000003E2A000-memory.dmp

Filesize
3.9MB

Download
memory/2372-52-0x0000000003A40000-0x0000000003E2A000-memory.dmp

Filesize
3.9MB

Download
memory/2372-0-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

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

Filesize
724KB

Download
memory/2652-75-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2652-82-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2652-76-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2652-70-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2652-71-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2652-53-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2652-98-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2652-73-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2652-94-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2652-56-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2652-90-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2652-72-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2652-86-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

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

Filesize
724KB

Download
memory/2664-69-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2664-61-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2664-65-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2664-79-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2664-66-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2724-60-0x0000000002D30000-0x000000000311A000-memory.dmp

Filesize
3.9MB

Download
memory/2724-64-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/2724-57-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/2724-59-0x0000000002D30000-0x000000000311A000-memory.dmp

Filesize
3.9MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads