darkcomet | 412dc66653e4b7780981fb774d9112bb977a6f79825bd76e872238306047aeab

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
23/10/2024, 04:54

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General

Target

412dc66653e4b7780981fb774d9112bb977a6f79825bd76e872238306047aeabN.exe
Size

574KB
MD5

ddb5552f0862152d7cad9a0b64cb4000
SHA1

39dbeb10aed0710b695bfdfe0cde13ac37b74834
SHA256

412dc66653e4b7780981fb774d9112bb977a6f79825bd76e872238306047aeab
SHA512

096026fa5a45c6ce71690a4ec6cae9322b5227f73cefafa52c9384f9e48569586be39a6df00029c9274dd0fdefaa1c7864ca71b223c30b27aa2ccdb8b8040eef
SSDEEP

12288:zCyEHAWAdljmJqkC3xMX85FSR2f9A08NIX+Vjwd4G/3z1ET4m3HdsubO:zFhWAfn22m0eD1GPz8Hdxy

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
2784	Soundcrd.exe
2816	Soundcrd.exe
2664	Soundcrd.exe

Loads dropped DLL 6 IoCs

pid	Process
2976	412dc66653e4b7780981fb774d9112bb977a6f79825bd76e872238306047aeabN.exe
2976	412dc66653e4b7780981fb774d9112bb977a6f79825bd76e872238306047aeabN.exe
2976	412dc66653e4b7780981fb774d9112bb977a6f79825bd76e872238306047aeabN.exe
2976	412dc66653e4b7780981fb774d9112bb977a6f79825bd76e872238306047aeabN.exe
2976	412dc66653e4b7780981fb774d9112bb977a6f79825bd76e872238306047aeabN.exe
2784	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-1-5-21-312935884-697965778-3955649944-1000\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 2784 set thread context of 2816	2784	Soundcrd.exe	34
PID 2784 set thread context of 2664	2784	Soundcrd.exe	35

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2816-57-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2816-58-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2816-55-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2816-59-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2816-62-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2816-61-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2816-60-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2816-63-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2816-64-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2664-65-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2664-68-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2664-67-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2664-70-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2816-74-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2664-77-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2816-80-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2816-84-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2816-88-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2816-92-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2816-96-0x0000000000400000-0x00000000004B5000-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	412dc66653e4b7780981fb774d9112bb977a6f79825bd76e872238306047aeabN.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: SeIncreaseQuotaPrivilege	2816	Soundcrd.exe
Token: SeSecurityPrivilege	2816	Soundcrd.exe
Token: SeTakeOwnershipPrivilege	2816	Soundcrd.exe
Token: SeLoadDriverPrivilege	2816	Soundcrd.exe
Token: SeSystemProfilePrivilege	2816	Soundcrd.exe
Token: SeSystemtimePrivilege	2816	Soundcrd.exe
Token: SeProfSingleProcessPrivilege	2816	Soundcrd.exe
Token: SeIncBasePriorityPrivilege	2816	Soundcrd.exe
Token: SeCreatePagefilePrivilege	2816	Soundcrd.exe
Token: SeBackupPrivilege	2816	Soundcrd.exe
Token: SeRestorePrivilege	2816	Soundcrd.exe
Token: SeShutdownPrivilege	2816	Soundcrd.exe
Token: SeDebugPrivilege	2816	Soundcrd.exe
Token: SeSystemEnvironmentPrivilege	2816	Soundcrd.exe
Token: SeChangeNotifyPrivilege	2816	Soundcrd.exe
Token: SeRemoteShutdownPrivilege	2816	Soundcrd.exe
Token: SeUndockPrivilege	2816	Soundcrd.exe
Token: SeManageVolumePrivilege	2816	Soundcrd.exe
Token: SeImpersonatePrivilege	2816	Soundcrd.exe
Token: SeCreateGlobalPrivilege	2816	Soundcrd.exe
Token: 33	2816	Soundcrd.exe
Token: 34	2816	Soundcrd.exe
Token: 35	2816	Soundcrd.exe
Token: SeDebugPrivilege	2664	Soundcrd.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2976	412dc66653e4b7780981fb774d9112bb977a6f79825bd76e872238306047aeabN.exe
2784	Soundcrd.exe
2664	Soundcrd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2976 wrote to memory of 1808	2976	412dc66653e4b7780981fb774d9112bb977a6f79825bd76e872238306047aeabN.exe	30
PID 2976 wrote to memory of 1808	2976	412dc66653e4b7780981fb774d9112bb977a6f79825bd76e872238306047aeabN.exe	30
PID 2976 wrote to memory of 1808	2976	412dc66653e4b7780981fb774d9112bb977a6f79825bd76e872238306047aeabN.exe	30
PID 2976 wrote to memory of 1808	2976	412dc66653e4b7780981fb774d9112bb977a6f79825bd76e872238306047aeabN.exe	30
PID 1808 wrote to memory of 1928	1808	cmd.exe	32
PID 1808 wrote to memory of 1928	1808	cmd.exe	32
PID 1808 wrote to memory of 1928	1808	cmd.exe	32
PID 1808 wrote to memory of 1928	1808	cmd.exe	32
PID 2976 wrote to memory of 2784	2976	412dc66653e4b7780981fb774d9112bb977a6f79825bd76e872238306047aeabN.exe	33
PID 2976 wrote to memory of 2784	2976	412dc66653e4b7780981fb774d9112bb977a6f79825bd76e872238306047aeabN.exe	33
PID 2976 wrote to memory of 2784	2976	412dc66653e4b7780981fb774d9112bb977a6f79825bd76e872238306047aeabN.exe	33
PID 2976 wrote to memory of 2784	2976	412dc66653e4b7780981fb774d9112bb977a6f79825bd76e872238306047aeabN.exe	33
PID 2784 wrote to memory of 2816	2784	Soundcrd.exe	34
PID 2784 wrote to memory of 2816	2784	Soundcrd.exe	34
PID 2784 wrote to memory of 2816	2784	Soundcrd.exe	34
PID 2784 wrote to memory of 2816	2784	Soundcrd.exe	34
PID 2784 wrote to memory of 2816	2784	Soundcrd.exe	34
PID 2784 wrote to memory of 2816	2784	Soundcrd.exe	34
PID 2784 wrote to memory of 2816	2784	Soundcrd.exe	34
PID 2784 wrote to memory of 2816	2784	Soundcrd.exe	34
PID 2784 wrote to memory of 2816	2784	Soundcrd.exe	34
PID 2784 wrote to memory of 2664	2784	Soundcrd.exe	35
PID 2784 wrote to memory of 2664	2784	Soundcrd.exe	35
PID 2784 wrote to memory of 2664	2784	Soundcrd.exe	35
PID 2784 wrote to memory of 2664	2784	Soundcrd.exe	35
PID 2784 wrote to memory of 2664	2784	Soundcrd.exe	35
PID 2784 wrote to memory of 2664	2784	Soundcrd.exe	35
PID 2784 wrote to memory of 2664	2784	Soundcrd.exe	35
PID 2784 wrote to memory of 2664	2784	Soundcrd.exe	35
PID 2784 wrote to memory of 2664	2784	Soundcrd.exe	35

C:\Users\Admin\AppData\Local\Temp\412dc66653e4b7780981fb774d9112bb977a6f79825bd76e872238306047aeabN.exe
"C:\Users\Admin\AppData\Local\Temp\412dc66653e4b7780981fb774d9112bb977a6f79825bd76e872238306047aeabN.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2976
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\cjhUp.bat" "
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1808
- - 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:1928
- 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:2784
- - 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:2816
- - 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

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Downloads

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

Filesize
139B

MD5
173bcce4810d4901872d0ef4f0bfea4e

SHA1
561b03fdfe68b6419fddf57f32e1aab9a6126a2f

SHA256
10ea37eceabbe80fe9814280b66b957636951dbeeed18a9b4d50a1d24a6f1d1d

SHA512
2401e0a5e3f7bf590a0767449da2249d09717e8c1cb71a7475e81d9615580001cfc38705cd1a5b4edc33f7df043bf195e28e4a5442a32bc879dffc6473bd545e

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

Filesize
574KB

MD5
d283eff0e5c92097f87096abd8bdd39c

SHA1
9be704549a80f445289ad7cef7dfe68377f2b2c3

SHA256
79d54b014db333ec2cb934efc6221d9e9b5edfe00f46afc566e474a7f46b8b54

SHA512
df9135c465cec7566db933f9509860330cfb05eeac9de5a7740bd9bc25c006869df3ea270166dda01be8775292f6656b07939c89af1d93bb1a3b502a8de77658

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

Filesize
36KB

Download
memory/2664-77-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2664-70-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2664-67-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2664-68-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2784-47-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/2784-71-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/2784-54-0x0000000002B70000-0x0000000002F5A000-memory.dmp

Filesize
3.9MB

Download
memory/2816-62-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2816-80-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2816-55-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2816-59-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2816-96-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2816-61-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2816-60-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2816-63-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2816-64-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2816-57-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2816-92-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2816-88-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2816-84-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2816-58-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2816-74-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2976-45-0x00000000037F0000-0x0000000003BDA000-memory.dmp

Filesize
3.9MB

Download
memory/2976-49-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/2976-44-0x00000000037F0000-0x0000000003BDA000-memory.dmp

Filesize
3.9MB

Download
memory/2976-43-0x00000000037F0000-0x0000000003BDA000-memory.dmp

Filesize
3.9MB

Download
memory/2976-42-0x00000000037F0000-0x0000000003BDA000-memory.dmp

Filesize
3.9MB

Download
memory/2976-0-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads