darkcomet | 57363792a68885ded84ef6194bce438ec924cb4bca78bc49717437dc0ed5e38e

Analysis

max time kernel
111s
max time network
119s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
25-12-2024 22:58

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General

Target

57363792a68885ded84ef6194bce438ec924cb4bca78bc49717437dc0ed5e38e.exe
Size

574KB
MD5

37ddfc1b0de9ae1cafe7df10784e124c
SHA1

6c0b6f64df86e751f5eb967d48c1bb589b7f7ebf
SHA256

57363792a68885ded84ef6194bce438ec924cb4bca78bc49717437dc0ed5e38e
SHA512

aeafb0ecfbeb2f280f23aafe1f356bc0c95e07fd0866bf73a16b9d613f1e0468f72cf10acdf5b28992166211311f48bb4e3e2e6716e08fbc535ec90311cc78c7
SSDEEP

12288:zCyEHAWAdljmJqkC3xMX85FSR2f9A08NIX+Vjwd4G/3z1ET4m3HdsubK:zFhWAfn22m0eD1GPz8HdxW

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
2140	Soundcrd.exe
2232	Soundcrd.exe
2692	Soundcrd.exe

Loads dropped DLL 7 IoCs

pid	Process
2084	57363792a68885ded84ef6194bce438ec924cb4bca78bc49717437dc0ed5e38e.exe
2084	57363792a68885ded84ef6194bce438ec924cb4bca78bc49717437dc0ed5e38e.exe
2084	57363792a68885ded84ef6194bce438ec924cb4bca78bc49717437dc0ed5e38e.exe
2084	57363792a68885ded84ef6194bce438ec924cb4bca78bc49717437dc0ed5e38e.exe
2084	57363792a68885ded84ef6194bce438ec924cb4bca78bc49717437dc0ed5e38e.exe
2140	Soundcrd.exe
2140	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-1-5-21-3533259084-2542256011-65585152-1000\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 2140 set thread context of 2232	2140	Soundcrd.exe	32
PID 2140 set thread context of 2692	2140	Soundcrd.exe	33

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2692-68-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2232-73-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2692-67-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2232-74-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2232-65-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2692-62-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2232-61-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2232-60-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2232-59-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2232-57-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2232-55-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2232-75-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2232-76-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2692-79-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2232-82-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2232-86-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2232-90-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2232-94-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2232-98-0x0000000000400000-0x00000000004B5000-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	57363792a68885ded84ef6194bce438ec924cb4bca78bc49717437dc0ed5e38e.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

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	2692	Soundcrd.exe
Token: SeIncreaseQuotaPrivilege	2232	Soundcrd.exe
Token: SeSecurityPrivilege	2232	Soundcrd.exe
Token: SeTakeOwnershipPrivilege	2232	Soundcrd.exe
Token: SeLoadDriverPrivilege	2232	Soundcrd.exe
Token: SeSystemProfilePrivilege	2232	Soundcrd.exe
Token: SeSystemtimePrivilege	2232	Soundcrd.exe
Token: SeProfSingleProcessPrivilege	2232	Soundcrd.exe
Token: SeIncBasePriorityPrivilege	2232	Soundcrd.exe
Token: SeCreatePagefilePrivilege	2232	Soundcrd.exe
Token: SeBackupPrivilege	2232	Soundcrd.exe
Token: SeRestorePrivilege	2232	Soundcrd.exe
Token: SeShutdownPrivilege	2232	Soundcrd.exe
Token: SeDebugPrivilege	2232	Soundcrd.exe
Token: SeSystemEnvironmentPrivilege	2232	Soundcrd.exe
Token: SeChangeNotifyPrivilege	2232	Soundcrd.exe
Token: SeRemoteShutdownPrivilege	2232	Soundcrd.exe
Token: SeUndockPrivilege	2232	Soundcrd.exe
Token: SeManageVolumePrivilege	2232	Soundcrd.exe
Token: SeImpersonatePrivilege	2232	Soundcrd.exe
Token: SeCreateGlobalPrivilege	2232	Soundcrd.exe
Token: 33	2232	Soundcrd.exe
Token: 34	2232	Soundcrd.exe
Token: 35	2232	Soundcrd.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2084	57363792a68885ded84ef6194bce438ec924cb4bca78bc49717437dc0ed5e38e.exe
2140	Soundcrd.exe
2692	Soundcrd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2084 wrote to memory of 2840	2084	57363792a68885ded84ef6194bce438ec924cb4bca78bc49717437dc0ed5e38e.exe	28
PID 2084 wrote to memory of 2840	2084	57363792a68885ded84ef6194bce438ec924cb4bca78bc49717437dc0ed5e38e.exe	28
PID 2084 wrote to memory of 2840	2084	57363792a68885ded84ef6194bce438ec924cb4bca78bc49717437dc0ed5e38e.exe	28
PID 2084 wrote to memory of 2840	2084	57363792a68885ded84ef6194bce438ec924cb4bca78bc49717437dc0ed5e38e.exe	28
PID 2840 wrote to memory of 2948	2840	cmd.exe	30
PID 2840 wrote to memory of 2948	2840	cmd.exe	30
PID 2840 wrote to memory of 2948	2840	cmd.exe	30
PID 2840 wrote to memory of 2948	2840	cmd.exe	30
PID 2084 wrote to memory of 2140	2084	57363792a68885ded84ef6194bce438ec924cb4bca78bc49717437dc0ed5e38e.exe	31
PID 2084 wrote to memory of 2140	2084	57363792a68885ded84ef6194bce438ec924cb4bca78bc49717437dc0ed5e38e.exe	31
PID 2084 wrote to memory of 2140	2084	57363792a68885ded84ef6194bce438ec924cb4bca78bc49717437dc0ed5e38e.exe	31
PID 2084 wrote to memory of 2140	2084	57363792a68885ded84ef6194bce438ec924cb4bca78bc49717437dc0ed5e38e.exe	31
PID 2140 wrote to memory of 2232	2140	Soundcrd.exe	32
PID 2140 wrote to memory of 2232	2140	Soundcrd.exe	32
PID 2140 wrote to memory of 2232	2140	Soundcrd.exe	32
PID 2140 wrote to memory of 2232	2140	Soundcrd.exe	32
PID 2140 wrote to memory of 2232	2140	Soundcrd.exe	32
PID 2140 wrote to memory of 2232	2140	Soundcrd.exe	32
PID 2140 wrote to memory of 2232	2140	Soundcrd.exe	32
PID 2140 wrote to memory of 2232	2140	Soundcrd.exe	32
PID 2140 wrote to memory of 2232	2140	Soundcrd.exe	32
PID 2140 wrote to memory of 2692	2140	Soundcrd.exe	33
PID 2140 wrote to memory of 2692	2140	Soundcrd.exe	33
PID 2140 wrote to memory of 2692	2140	Soundcrd.exe	33
PID 2140 wrote to memory of 2692	2140	Soundcrd.exe	33
PID 2140 wrote to memory of 2692	2140	Soundcrd.exe	33
PID 2140 wrote to memory of 2692	2140	Soundcrd.exe	33
PID 2140 wrote to memory of 2692	2140	Soundcrd.exe	33
PID 2140 wrote to memory of 2692	2140	Soundcrd.exe	33
PID 2140 wrote to memory of 2692	2140	Soundcrd.exe	33

C:\Users\Admin\AppData\Local\Temp\57363792a68885ded84ef6194bce438ec924cb4bca78bc49717437dc0ed5e38e.exe
"C:\Users\Admin\AppData\Local\Temp\57363792a68885ded84ef6194bce438ec924cb4bca78bc49717437dc0ed5e38e.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2084
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\VsFUa.bat" "
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2840
- - 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:2948
- 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:2140
- - 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:2232
- - 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:2692

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\VsFUa.bat

Filesize
139B

MD5
173bcce4810d4901872d0ef4f0bfea4e

SHA1
561b03fdfe68b6419fddf57f32e1aab9a6126a2f

SHA256
10ea37eceabbe80fe9814280b66b957636951dbeeed18a9b4d50a1d24a6f1d1d

SHA512
2401e0a5e3f7bf590a0767449da2249d09717e8c1cb71a7475e81d9615580001cfc38705cd1a5b4edc33f7df043bf195e28e4a5442a32bc879dffc6473bd545e

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

Filesize
574KB

MD5
3dd6b6e2bb1ce0e3f96a7433ccda3a10

SHA1
48adcbc3bdc617945114712c7388373ef9bc2cd7

SHA256
6358bf489637380eb2009bd8dec003d63a6a72c7b813da7b9e936a34623f2dac

SHA512
bdd08a5a1a5fafdabd8244cb075c96e9b0b2b3369eadb7d914be4bae2a33b5e3054bbac3d941f5583770ac1361283edab58c05d09e65777cf5675c39fc6bbf12

Download Submit
memory/2084-1-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/2084-42-0x0000000003950000-0x0000000003D3A000-memory.dmp

Filesize
3.9MB

Download
memory/2084-45-0x0000000003950000-0x0000000003D3A000-memory.dmp

Filesize
3.9MB

Download
memory/2084-44-0x0000000003950000-0x0000000003D3A000-memory.dmp

Filesize
3.9MB

Download
memory/2084-43-0x0000000003950000-0x0000000003D3A000-memory.dmp

Filesize
3.9MB

Download
memory/2084-49-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/2140-47-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/2140-54-0x0000000002BE0000-0x0000000002FCA000-memory.dmp

Filesize
3.9MB

Download
memory/2140-70-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/2140-63-0x0000000002CE0000-0x00000000030CA000-memory.dmp

Filesize
3.9MB

Download
memory/2232-74-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2232-60-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2232-73-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2232-65-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2232-98-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2232-94-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2232-61-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2232-86-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2232-59-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2232-57-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2232-55-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2232-75-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2232-76-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2232-90-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2232-82-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2692-62-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2692-79-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2692-67-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2692-68-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads