darkcomet | f092b714c9c93032e53a29f294f1f32171b94c6dbea73e520ceca54b4924d302

Analysis

max time kernel
119s
max time network
123s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
06-11-2024 04:04

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General

Target

f092b714c9c93032e53a29f294f1f32171b94c6dbea73e520ceca54b4924d302N.exe
Size

3.9MB
MD5

708d7d61f8ec91d35b06f3aa5c12c100
SHA1

ea679faff2646731ab2312627457cb592860fb58
SHA256

f092b714c9c93032e53a29f294f1f32171b94c6dbea73e520ceca54b4924d302
SHA512

5f298ba3f2dbcd0a756d943b3e5acca20294325e901718e11327df2ad6aeed2b24245be2dc925426a9f52d2fc8bba739c615aa8ac24fbb4663cae6b42708a720
SSDEEP

98304:alX3KMj7yBNUVPhd5G0Z5DxdM3hZpmBAlB6D4tyX6kuT4IkQApCgvms0Cv05J5C4:alX3KMj7yBNUVPhd5G0Z5DxdM3hZpmB4

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
2816	Soundcrd.exe
2808	Soundcrd.exe
2888	Soundcrd.exe

Loads dropped DLL 7 IoCs

pid	Process
1872	f092b714c9c93032e53a29f294f1f32171b94c6dbea73e520ceca54b4924d302N.exe
1872	f092b714c9c93032e53a29f294f1f32171b94c6dbea73e520ceca54b4924d302N.exe
1872	f092b714c9c93032e53a29f294f1f32171b94c6dbea73e520ceca54b4924d302N.exe
1872	f092b714c9c93032e53a29f294f1f32171b94c6dbea73e520ceca54b4924d302N.exe
1872	f092b714c9c93032e53a29f294f1f32171b94c6dbea73e520ceca54b4924d302N.exe
2816	Soundcrd.exe
2816	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-1-5-21-1846800975-3917212583-2893086201-1000\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 2816 set thread context of 2808	2816	Soundcrd.exe	34
PID 2816 set thread context of 2888	2816	Soundcrd.exe	35

UPX packed file 25 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1872-1-0x0000000000400000-0x00000000007EC000-memory.dmp	upx
behavioral1/files/0x0008000000016d9a-27.dat	upx
behavioral1/memory/1872-42-0x0000000003960000-0x0000000003D4C000-memory.dmp	upx
behavioral1/memory/2816-48-0x0000000000400000-0x00000000007EC000-memory.dmp	upx
behavioral1/memory/1872-45-0x0000000000400000-0x00000000007EC000-memory.dmp	upx
behavioral1/memory/2808-63-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2808-53-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2888-61-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2888-60-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2888-57-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2808-56-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2816-65-0x0000000000400000-0x00000000007EC000-memory.dmp	upx
behavioral1/memory/2808-68-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2808-70-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2808-69-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2808-71-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2808-72-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2808-73-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2808-74-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2888-75-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2808-80-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2808-84-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2808-88-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2808-92-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2808-96-0x0000000000400000-0x00000000004B5000-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	f092b714c9c93032e53a29f294f1f32171b94c6dbea73e520ceca54b4924d302N.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	2888	Soundcrd.exe
Token: SeIncreaseQuotaPrivilege	2808	Soundcrd.exe
Token: SeSecurityPrivilege	2808	Soundcrd.exe
Token: SeTakeOwnershipPrivilege	2808	Soundcrd.exe
Token: SeLoadDriverPrivilege	2808	Soundcrd.exe
Token: SeSystemProfilePrivilege	2808	Soundcrd.exe
Token: SeSystemtimePrivilege	2808	Soundcrd.exe
Token: SeProfSingleProcessPrivilege	2808	Soundcrd.exe
Token: SeIncBasePriorityPrivilege	2808	Soundcrd.exe
Token: SeCreatePagefilePrivilege	2808	Soundcrd.exe
Token: SeBackupPrivilege	2808	Soundcrd.exe
Token: SeRestorePrivilege	2808	Soundcrd.exe
Token: SeShutdownPrivilege	2808	Soundcrd.exe
Token: SeDebugPrivilege	2808	Soundcrd.exe
Token: SeSystemEnvironmentPrivilege	2808	Soundcrd.exe
Token: SeChangeNotifyPrivilege	2808	Soundcrd.exe
Token: SeRemoteShutdownPrivilege	2808	Soundcrd.exe
Token: SeUndockPrivilege	2808	Soundcrd.exe
Token: SeManageVolumePrivilege	2808	Soundcrd.exe
Token: SeImpersonatePrivilege	2808	Soundcrd.exe
Token: SeCreateGlobalPrivilege	2808	Soundcrd.exe
Token: 33	2808	Soundcrd.exe
Token: 34	2808	Soundcrd.exe
Token: 35	2808	Soundcrd.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1872	f092b714c9c93032e53a29f294f1f32171b94c6dbea73e520ceca54b4924d302N.exe
2816	Soundcrd.exe
2888	Soundcrd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1872 wrote to memory of 2876	1872	f092b714c9c93032e53a29f294f1f32171b94c6dbea73e520ceca54b4924d302N.exe	30
PID 1872 wrote to memory of 2876	1872	f092b714c9c93032e53a29f294f1f32171b94c6dbea73e520ceca54b4924d302N.exe	30
PID 1872 wrote to memory of 2876	1872	f092b714c9c93032e53a29f294f1f32171b94c6dbea73e520ceca54b4924d302N.exe	30
PID 1872 wrote to memory of 2876	1872	f092b714c9c93032e53a29f294f1f32171b94c6dbea73e520ceca54b4924d302N.exe	30
PID 2876 wrote to memory of 2460	2876	cmd.exe	32
PID 2876 wrote to memory of 2460	2876	cmd.exe	32
PID 2876 wrote to memory of 2460	2876	cmd.exe	32
PID 2876 wrote to memory of 2460	2876	cmd.exe	32
PID 1872 wrote to memory of 2816	1872	f092b714c9c93032e53a29f294f1f32171b94c6dbea73e520ceca54b4924d302N.exe	33
PID 1872 wrote to memory of 2816	1872	f092b714c9c93032e53a29f294f1f32171b94c6dbea73e520ceca54b4924d302N.exe	33
PID 1872 wrote to memory of 2816	1872	f092b714c9c93032e53a29f294f1f32171b94c6dbea73e520ceca54b4924d302N.exe	33
PID 1872 wrote to memory of 2816	1872	f092b714c9c93032e53a29f294f1f32171b94c6dbea73e520ceca54b4924d302N.exe	33
PID 2816 wrote to memory of 2808	2816	Soundcrd.exe	34
PID 2816 wrote to memory of 2808	2816	Soundcrd.exe	34
PID 2816 wrote to memory of 2808	2816	Soundcrd.exe	34
PID 2816 wrote to memory of 2808	2816	Soundcrd.exe	34
PID 2816 wrote to memory of 2808	2816	Soundcrd.exe	34
PID 2816 wrote to memory of 2808	2816	Soundcrd.exe	34
PID 2816 wrote to memory of 2808	2816	Soundcrd.exe	34
PID 2816 wrote to memory of 2808	2816	Soundcrd.exe	34
PID 2816 wrote to memory of 2808	2816	Soundcrd.exe	34
PID 2816 wrote to memory of 2888	2816	Soundcrd.exe	35
PID 2816 wrote to memory of 2888	2816	Soundcrd.exe	35
PID 2816 wrote to memory of 2888	2816	Soundcrd.exe	35
PID 2816 wrote to memory of 2888	2816	Soundcrd.exe	35
PID 2816 wrote to memory of 2888	2816	Soundcrd.exe	35
PID 2816 wrote to memory of 2888	2816	Soundcrd.exe	35
PID 2816 wrote to memory of 2888	2816	Soundcrd.exe	35
PID 2816 wrote to memory of 2888	2816	Soundcrd.exe	35
PID 2816 wrote to memory of 2888	2816	Soundcrd.exe	35

C:\Users\Admin\AppData\Local\Temp\f092b714c9c93032e53a29f294f1f32171b94c6dbea73e520ceca54b4924d302N.exe
"C:\Users\Admin\AppData\Local\Temp\f092b714c9c93032e53a29f294f1f32171b94c6dbea73e520ceca54b4924d302N.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1872
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\ZhIYf.bat" "
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2876
- - 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:2460
- 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:2816
- - 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:2808
- - 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:2888

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\ZhIYf.bat

Filesize
139B

MD5
173bcce4810d4901872d0ef4f0bfea4e

SHA1
561b03fdfe68b6419fddf57f32e1aab9a6126a2f

SHA256
10ea37eceabbe80fe9814280b66b957636951dbeeed18a9b4d50a1d24a6f1d1d

SHA512
2401e0a5e3f7bf590a0767449da2249d09717e8c1cb71a7475e81d9615580001cfc38705cd1a5b4edc33f7df043bf195e28e4a5442a32bc879dffc6473bd545e

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

Filesize
3.9MB

MD5
79db2d3ae8b19633f9b95d8a07b37cb2

SHA1
9100cb6ab79d20620e85cfc85c34a07898973f5a

SHA256
7236ca25a5cda59b5fed661952013ac25ecda0522f87ca997743ef1b2e888b02

SHA512
a412e8fc365c2b7228c5af7b241275fd0f607a332fdae15167a02e3b1fbeba874374c4371fddbcf27707d7d16daf86d970797cc4a5a37d91ea1e9be77f72421b

Download Submit
memory/1872-43-0x0000000003960000-0x0000000003D4C000-memory.dmp

Filesize
3.9MB

Download
memory/1872-42-0x0000000003960000-0x0000000003D4C000-memory.dmp

Filesize
3.9MB

Download
memory/1872-1-0x0000000000400000-0x00000000007EC000-memory.dmp

Filesize
3.9MB

Download
memory/1872-46-0x0000000003960000-0x0000000003D4C000-memory.dmp

Filesize
3.9MB

Download
memory/1872-45-0x0000000000400000-0x00000000007EC000-memory.dmp

Filesize
3.9MB

Download
memory/1872-44-0x0000000003960000-0x0000000003D4C000-memory.dmp

Filesize
3.9MB

Download
memory/2808-71-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2808-74-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2808-96-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2808-53-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2808-92-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2808-88-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2808-84-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2808-80-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2808-56-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2808-63-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2808-68-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2808-70-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2808-69-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2808-73-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2808-72-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2816-48-0x0000000000400000-0x00000000007EC000-memory.dmp

Filesize
3.9MB

Download
memory/2816-65-0x0000000000400000-0x00000000007EC000-memory.dmp

Filesize
3.9MB

Download
memory/2816-62-0x0000000002B10000-0x0000000002EFC000-memory.dmp

Filesize
3.9MB

Download
memory/2816-64-0x0000000002C10000-0x0000000002FFC000-memory.dmp

Filesize
3.9MB

Download
memory/2888-75-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2888-57-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2888-60-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2888-61-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads