darkcomet | fc2c20c422ed7aa47242a52104c1f32d67dee86fc7bd1e0823265ec66bae6879

Analysis

max time kernel
119s
max time network
121s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
25-11-2024 01:08

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General

Target

fc2c20c422ed7aa47242a52104c1f32d67dee86fc7bd1e0823265ec66bae6879.exe
Size

3.9MB
MD5

6da5d1f6b01359958cee97bd0c62cf4d
SHA1

ce1b528e13184e29723d1a97f3ce25f14f1faff8
SHA256

fc2c20c422ed7aa47242a52104c1f32d67dee86fc7bd1e0823265ec66bae6879
SHA512

7a4fcfb855c7c3d0335e33a4e5303ddc734f2c824229407d216003cbe64c93f59ba1e78569ef8b6d533a3f799c0443427e8d02c3ec35420f547a033d41c34803
SSDEEP

98304:alX3KMj7yBNUVPhd5G0Z5DxdM3hZpmBAlB6D4tyX6kuT4IkQApCgvms0Cv05J5Cp:alX3KMj7yBNUVPhd5G0Z5DxdM3hZpmBp

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
2848	Soundcrd.exe
3052	Soundcrd.exe
2764	Soundcrd.exe

Loads dropped DLL 5 IoCs

pid	Process
2336	fc2c20c422ed7aa47242a52104c1f32d67dee86fc7bd1e0823265ec66bae6879.exe
2336	fc2c20c422ed7aa47242a52104c1f32d67dee86fc7bd1e0823265ec66bae6879.exe
2336	fc2c20c422ed7aa47242a52104c1f32d67dee86fc7bd1e0823265ec66bae6879.exe
2336	fc2c20c422ed7aa47242a52104c1f32d67dee86fc7bd1e0823265ec66bae6879.exe
2336	fc2c20c422ed7aa47242a52104c1f32d67dee86fc7bd1e0823265ec66bae6879.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-1-5-21-3692679935-4019334568-335155002-1000\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 2848 set thread context of 3052	2848	Soundcrd.exe	33
PID 2848 set thread context of 2764	2848	Soundcrd.exe	34

UPX packed file 26 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2336-0-0x0000000000400000-0x00000000007EC000-memory.dmp	upx
behavioral1/files/0x000800000001957c-27.dat	upx
behavioral1/memory/2336-42-0x0000000003190000-0x000000000357C000-memory.dmp	upx
behavioral1/memory/2848-46-0x0000000000400000-0x00000000007EC000-memory.dmp	upx
behavioral1/memory/3052-50-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2336-45-0x0000000000400000-0x00000000007EC000-memory.dmp	upx
behavioral1/memory/3052-52-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2764-59-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2764-58-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2764-57-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2764-54-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/3052-60-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/3052-53-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/3052-63-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/3052-65-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/3052-64-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/3052-67-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/3052-66-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2848-68-0x0000000000400000-0x00000000007EC000-memory.dmp	upx
behavioral1/memory/3052-70-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2764-71-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/3052-76-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/3052-80-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/3052-84-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/3052-88-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/3052-92-0x0000000000400000-0x00000000004B5000-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	fc2c20c422ed7aa47242a52104c1f32d67dee86fc7bd1e0823265ec66bae6879.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Soundcrd.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 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
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	Soundcrd.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	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	2764	Soundcrd.exe
Token: SeIncreaseQuotaPrivilege	3052	Soundcrd.exe
Token: SeSecurityPrivilege	3052	Soundcrd.exe
Token: SeTakeOwnershipPrivilege	3052	Soundcrd.exe
Token: SeLoadDriverPrivilege	3052	Soundcrd.exe
Token: SeSystemProfilePrivilege	3052	Soundcrd.exe
Token: SeSystemtimePrivilege	3052	Soundcrd.exe
Token: SeProfSingleProcessPrivilege	3052	Soundcrd.exe
Token: SeIncBasePriorityPrivilege	3052	Soundcrd.exe
Token: SeCreatePagefilePrivilege	3052	Soundcrd.exe
Token: SeBackupPrivilege	3052	Soundcrd.exe
Token: SeRestorePrivilege	3052	Soundcrd.exe
Token: SeShutdownPrivilege	3052	Soundcrd.exe
Token: SeDebugPrivilege	3052	Soundcrd.exe
Token: SeSystemEnvironmentPrivilege	3052	Soundcrd.exe
Token: SeChangeNotifyPrivilege	3052	Soundcrd.exe
Token: SeRemoteShutdownPrivilege	3052	Soundcrd.exe
Token: SeUndockPrivilege	3052	Soundcrd.exe
Token: SeManageVolumePrivilege	3052	Soundcrd.exe
Token: SeImpersonatePrivilege	3052	Soundcrd.exe
Token: SeCreateGlobalPrivilege	3052	Soundcrd.exe
Token: 33	3052	Soundcrd.exe
Token: 34	3052	Soundcrd.exe
Token: 35	3052	Soundcrd.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2336	fc2c20c422ed7aa47242a52104c1f32d67dee86fc7bd1e0823265ec66bae6879.exe
2848	Soundcrd.exe
2764	Soundcrd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2336 wrote to memory of 2836	2336	fc2c20c422ed7aa47242a52104c1f32d67dee86fc7bd1e0823265ec66bae6879.exe	29
PID 2336 wrote to memory of 2836	2336	fc2c20c422ed7aa47242a52104c1f32d67dee86fc7bd1e0823265ec66bae6879.exe	29
PID 2336 wrote to memory of 2836	2336	fc2c20c422ed7aa47242a52104c1f32d67dee86fc7bd1e0823265ec66bae6879.exe	29
PID 2336 wrote to memory of 2836	2336	fc2c20c422ed7aa47242a52104c1f32d67dee86fc7bd1e0823265ec66bae6879.exe	29
PID 2836 wrote to memory of 2992	2836	cmd.exe	31
PID 2836 wrote to memory of 2992	2836	cmd.exe	31
PID 2836 wrote to memory of 2992	2836	cmd.exe	31
PID 2836 wrote to memory of 2992	2836	cmd.exe	31
PID 2336 wrote to memory of 2848	2336	fc2c20c422ed7aa47242a52104c1f32d67dee86fc7bd1e0823265ec66bae6879.exe	32
PID 2336 wrote to memory of 2848	2336	fc2c20c422ed7aa47242a52104c1f32d67dee86fc7bd1e0823265ec66bae6879.exe	32
PID 2336 wrote to memory of 2848	2336	fc2c20c422ed7aa47242a52104c1f32d67dee86fc7bd1e0823265ec66bae6879.exe	32
PID 2336 wrote to memory of 2848	2336	fc2c20c422ed7aa47242a52104c1f32d67dee86fc7bd1e0823265ec66bae6879.exe	32
PID 2848 wrote to memory of 3052	2848	Soundcrd.exe	33
PID 2848 wrote to memory of 3052	2848	Soundcrd.exe	33
PID 2848 wrote to memory of 3052	2848	Soundcrd.exe	33
PID 2848 wrote to memory of 3052	2848	Soundcrd.exe	33
PID 2848 wrote to memory of 3052	2848	Soundcrd.exe	33
PID 2848 wrote to memory of 3052	2848	Soundcrd.exe	33
PID 2848 wrote to memory of 3052	2848	Soundcrd.exe	33
PID 2848 wrote to memory of 3052	2848	Soundcrd.exe	33
PID 2848 wrote to memory of 3052	2848	Soundcrd.exe	33
PID 2848 wrote to memory of 2764	2848	Soundcrd.exe	34
PID 2848 wrote to memory of 2764	2848	Soundcrd.exe	34
PID 2848 wrote to memory of 2764	2848	Soundcrd.exe	34
PID 2848 wrote to memory of 2764	2848	Soundcrd.exe	34
PID 2848 wrote to memory of 2764	2848	Soundcrd.exe	34
PID 2848 wrote to memory of 2764	2848	Soundcrd.exe	34
PID 2848 wrote to memory of 2764	2848	Soundcrd.exe	34
PID 2848 wrote to memory of 2764	2848	Soundcrd.exe	34
PID 2848 wrote to memory of 2764	2848	Soundcrd.exe	34

C:\Users\Admin\AppData\Local\Temp\fc2c20c422ed7aa47242a52104c1f32d67dee86fc7bd1e0823265ec66bae6879.exe
"C:\Users\Admin\AppData\Local\Temp\fc2c20c422ed7aa47242a52104c1f32d67dee86fc7bd1e0823265ec66bae6879.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2336
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\nreXG.bat" "
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2836
- - 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
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2848
- - 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:3052
- - 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:2764

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\nreXG.bat

Filesize
139B

MD5
173bcce4810d4901872d0ef4f0bfea4e

SHA1
561b03fdfe68b6419fddf57f32e1aab9a6126a2f

SHA256
10ea37eceabbe80fe9814280b66b957636951dbeeed18a9b4d50a1d24a6f1d1d

SHA512
2401e0a5e3f7bf590a0767449da2249d09717e8c1cb71a7475e81d9615580001cfc38705cd1a5b4edc33f7df043bf195e28e4a5442a32bc879dffc6473bd545e

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

Filesize
3.9MB

MD5
f0b63698863d4a21ae445f097f74377e

SHA1
8bdc8f67c66fb0df750632bdb7414800bef5763a

SHA256
cd154312ab3ce6593cdfb5b2ff22cfc08e91d0994fbb80453ad049066e07404e

SHA512
3a06d80c15d7182616ed979db9d7087b380689412622b924f28d9b692514e8ff9b1383296e324e35302eff44e1c994f275036609a5425613618661be6a1ae281

Download Submit
memory/2336-69-0x0000000003190000-0x000000000357C000-memory.dmp

Filesize
3.9MB

Download
memory/2336-43-0x0000000003190000-0x000000000357C000-memory.dmp

Filesize
3.9MB

Download
memory/2336-0-0x0000000000400000-0x00000000007EC000-memory.dmp

Filesize
3.9MB

Download
memory/2336-42-0x0000000003190000-0x000000000357C000-memory.dmp

Filesize
3.9MB

Download
memory/2336-45-0x0000000000400000-0x00000000007EC000-memory.dmp

Filesize
3.9MB

Download
memory/2764-59-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2764-58-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2764-57-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2764-54-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2764-71-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2848-46-0x0000000000400000-0x00000000007EC000-memory.dmp

Filesize
3.9MB

Download
memory/2848-68-0x0000000000400000-0x00000000007EC000-memory.dmp

Filesize
3.9MB

Download
memory/3052-67-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3052-53-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3052-60-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3052-64-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3052-52-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3052-66-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3052-50-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3052-92-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3052-70-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3052-65-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3052-76-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3052-80-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3052-84-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3052-88-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3052-63-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads