darkcomet | 2791e87f32ec478fe7a73a4233bd1820d7afbbb4e596c659440c11b0b1ea05ea

Analysis

max time kernel
114s
max time network
121s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
05-11-2024 09:29

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General

Target

2791e87f32ec478fe7a73a4233bd1820d7afbbb4e596c659440c11b0b1ea05eaN.exe
Size

574KB
MD5

99fb8b9135902f0b8ab71c4677736110
SHA1

a4a2bbcc70234d145288fcc15cb11c6478d32e59
SHA256

2791e87f32ec478fe7a73a4233bd1820d7afbbb4e596c659440c11b0b1ea05ea
SHA512

55c67826f60f2c415ec7cec74163aa379c369ba3b544f1394092c7d8344a4499ebda68b0c0e4e55589d4cc95f1d840a5e7550d83324fcc3e9918645a0c5a7b14
SSDEEP

12288:zCyEHAWAdljmJqkC3xMX85FSR2f9A08NIX+Vjwd4G/3z1ET4m3Hdsub7:zFhWAfn22m0eD1GPz8HdxH

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
2804	Soundcrd.exe
2760	Soundcrd.exe
2552	Soundcrd.exe

Loads dropped DLL 5 IoCs

pid	Process
2904	2791e87f32ec478fe7a73a4233bd1820d7afbbb4e596c659440c11b0b1ea05eaN.exe
2904	2791e87f32ec478fe7a73a4233bd1820d7afbbb4e596c659440c11b0b1ea05eaN.exe
2904	2791e87f32ec478fe7a73a4233bd1820d7afbbb4e596c659440c11b0b1ea05eaN.exe
2904	2791e87f32ec478fe7a73a4233bd1820d7afbbb4e596c659440c11b0b1ea05eaN.exe
2904	2791e87f32ec478fe7a73a4233bd1820d7afbbb4e596c659440c11b0b1ea05eaN.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 2804 set thread context of 2760	2804	Soundcrd.exe	33
PID 2804 set thread context of 2552	2804	Soundcrd.exe	34

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2760-53-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2760-54-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2760-51-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2760-55-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2760-56-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2760-57-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2760-58-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2760-59-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2760-60-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2552-61-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2552-65-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2552-64-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2760-69-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2552-71-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2760-74-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2760-78-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2760-82-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2760-86-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2760-90-0x0000000000400000-0x00000000004B5000-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	2791e87f32ec478fe7a73a4233bd1820d7afbbb4e596c659440c11b0b1ea05eaN.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\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
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	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	2760	Soundcrd.exe
Token: SeSecurityPrivilege	2760	Soundcrd.exe
Token: SeTakeOwnershipPrivilege	2760	Soundcrd.exe
Token: SeLoadDriverPrivilege	2760	Soundcrd.exe
Token: SeSystemProfilePrivilege	2760	Soundcrd.exe
Token: SeSystemtimePrivilege	2760	Soundcrd.exe
Token: SeProfSingleProcessPrivilege	2760	Soundcrd.exe
Token: SeIncBasePriorityPrivilege	2760	Soundcrd.exe
Token: SeCreatePagefilePrivilege	2760	Soundcrd.exe
Token: SeBackupPrivilege	2760	Soundcrd.exe
Token: SeRestorePrivilege	2760	Soundcrd.exe
Token: SeShutdownPrivilege	2760	Soundcrd.exe
Token: SeDebugPrivilege	2760	Soundcrd.exe
Token: SeSystemEnvironmentPrivilege	2760	Soundcrd.exe
Token: SeChangeNotifyPrivilege	2760	Soundcrd.exe
Token: SeRemoteShutdownPrivilege	2760	Soundcrd.exe
Token: SeUndockPrivilege	2760	Soundcrd.exe
Token: SeManageVolumePrivilege	2760	Soundcrd.exe
Token: SeImpersonatePrivilege	2760	Soundcrd.exe
Token: SeCreateGlobalPrivilege	2760	Soundcrd.exe
Token: 33	2760	Soundcrd.exe
Token: 34	2760	Soundcrd.exe
Token: 35	2760	Soundcrd.exe
Token: SeDebugPrivilege	2552	Soundcrd.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2904	2791e87f32ec478fe7a73a4233bd1820d7afbbb4e596c659440c11b0b1ea05eaN.exe
2804	Soundcrd.exe
2552	Soundcrd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2904 wrote to memory of 2996	2904	2791e87f32ec478fe7a73a4233bd1820d7afbbb4e596c659440c11b0b1ea05eaN.exe	29
PID 2904 wrote to memory of 2996	2904	2791e87f32ec478fe7a73a4233bd1820d7afbbb4e596c659440c11b0b1ea05eaN.exe	29
PID 2904 wrote to memory of 2996	2904	2791e87f32ec478fe7a73a4233bd1820d7afbbb4e596c659440c11b0b1ea05eaN.exe	29
PID 2904 wrote to memory of 2996	2904	2791e87f32ec478fe7a73a4233bd1820d7afbbb4e596c659440c11b0b1ea05eaN.exe	29
PID 2996 wrote to memory of 2484	2996	cmd.exe	31
PID 2996 wrote to memory of 2484	2996	cmd.exe	31
PID 2996 wrote to memory of 2484	2996	cmd.exe	31
PID 2996 wrote to memory of 2484	2996	cmd.exe	31
PID 2904 wrote to memory of 2804	2904	2791e87f32ec478fe7a73a4233bd1820d7afbbb4e596c659440c11b0b1ea05eaN.exe	32
PID 2904 wrote to memory of 2804	2904	2791e87f32ec478fe7a73a4233bd1820d7afbbb4e596c659440c11b0b1ea05eaN.exe	32
PID 2904 wrote to memory of 2804	2904	2791e87f32ec478fe7a73a4233bd1820d7afbbb4e596c659440c11b0b1ea05eaN.exe	32
PID 2904 wrote to memory of 2804	2904	2791e87f32ec478fe7a73a4233bd1820d7afbbb4e596c659440c11b0b1ea05eaN.exe	32
PID 2804 wrote to memory of 2760	2804	Soundcrd.exe	33
PID 2804 wrote to memory of 2760	2804	Soundcrd.exe	33
PID 2804 wrote to memory of 2760	2804	Soundcrd.exe	33
PID 2804 wrote to memory of 2760	2804	Soundcrd.exe	33
PID 2804 wrote to memory of 2760	2804	Soundcrd.exe	33
PID 2804 wrote to memory of 2760	2804	Soundcrd.exe	33
PID 2804 wrote to memory of 2760	2804	Soundcrd.exe	33
PID 2804 wrote to memory of 2760	2804	Soundcrd.exe	33
PID 2804 wrote to memory of 2760	2804	Soundcrd.exe	33
PID 2804 wrote to memory of 2552	2804	Soundcrd.exe	34
PID 2804 wrote to memory of 2552	2804	Soundcrd.exe	34
PID 2804 wrote to memory of 2552	2804	Soundcrd.exe	34
PID 2804 wrote to memory of 2552	2804	Soundcrd.exe	34
PID 2804 wrote to memory of 2552	2804	Soundcrd.exe	34
PID 2804 wrote to memory of 2552	2804	Soundcrd.exe	34
PID 2804 wrote to memory of 2552	2804	Soundcrd.exe	34
PID 2804 wrote to memory of 2552	2804	Soundcrd.exe	34
PID 2804 wrote to memory of 2552	2804	Soundcrd.exe	34

C:\Users\Admin\AppData\Local\Temp\2791e87f32ec478fe7a73a4233bd1820d7afbbb4e596c659440c11b0b1ea05eaN.exe
"C:\Users\Admin\AppData\Local\Temp\2791e87f32ec478fe7a73a4233bd1820d7afbbb4e596c659440c11b0b1ea05eaN.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2904
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\daQct.bat" "
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2996
- - 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:2484
- 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:2804
- - 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:2760
- - 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:2552

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\daQct.bat

Filesize
139B

MD5
173bcce4810d4901872d0ef4f0bfea4e

SHA1
561b03fdfe68b6419fddf57f32e1aab9a6126a2f

SHA256
10ea37eceabbe80fe9814280b66b957636951dbeeed18a9b4d50a1d24a6f1d1d

SHA512
2401e0a5e3f7bf590a0767449da2249d09717e8c1cb71a7475e81d9615580001cfc38705cd1a5b4edc33f7df043bf195e28e4a5442a32bc879dffc6473bd545e

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

Filesize
574KB

MD5
6d360c48d025eefd9589bae9a579a723

SHA1
781b7f6737caec2e9f7296feb6a8a7c49b0e90f1

SHA256
95e6fd3e266b3bf9c384a4cd1fbb4c7e3defa4708f49380b0ab770dd075742be

SHA512
3869760d14dfd70aea65f8f7e9843717fb2c02b12cf30a3b8f5b6db0ab9ac2a5db30f3bb168fa4aac0c41e2500f276eb95fcf84d0db4e8cea94aa78412c357df

Download Submit
memory/2552-61-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2552-71-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2552-64-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2552-65-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2760-57-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2760-58-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2760-54-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2760-51-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2760-55-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2760-56-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2760-90-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2760-74-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2760-59-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2760-60-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2760-86-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2760-53-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2760-82-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2760-78-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2760-69-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2804-66-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/2804-47-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/2904-42-0x0000000003290000-0x000000000367A000-memory.dmp

Filesize
3.9MB

Download
memory/2904-45-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/2904-44-0x0000000003290000-0x000000000367A000-memory.dmp

Filesize
3.9MB

Download
memory/2904-0-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads