darkcomet | 175fe12292a6e352ff920e5233673bf19f7f4673d7ca5929f1f5ee3042628922

Analysis

max time kernel
150s
max time network
151s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
04-11-2024 09:38

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General

Target

175fe12292a6e352ff920e5233673bf19f7f4673d7ca5929f1f5ee3042628922N.exe
Size

3.9MB
MD5

d143eae87d2ee78c5688a45e65537cd0
SHA1

e40db521e796058f00503cb451a7e45b480168d0
SHA256

175fe12292a6e352ff920e5233673bf19f7f4673d7ca5929f1f5ee3042628922
SHA512

a803261cbd4a11291b7e0027d16d48a11a99c6ec97798a0a422212c2338263c020e92dc4fbc5409e05d97172a42f973ee5024ec0169653e7fdafaf5903ce3644
SSDEEP

98304:8lX3KMj7yBNUVPhd5G0Z5DxdM3hZpmBAlB6D4tyX6kuT4IkQApCgvms0Cv05J5CH:8lX3KMj7yBNUVPhd5G0Z5DxdM3hZpmBH

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

Processes:

Soundcrd.exe

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	Soundcrd.exe

Executes dropped EXE 3 IoCs

Processes:

Soundcrd.exeSoundcrd.exeSoundcrd.exe

pid	Process
2252	Soundcrd.exe
2788	Soundcrd.exe
2824	Soundcrd.exe

Loads dropped DLL 5 IoCs

Processes:

175fe12292a6e352ff920e5233673bf19f7f4673d7ca5929f1f5ee3042628922N.exe

pid	Process
2152	175fe12292a6e352ff920e5233673bf19f7f4673d7ca5929f1f5ee3042628922N.exe
2152	175fe12292a6e352ff920e5233673bf19f7f4673d7ca5929f1f5ee3042628922N.exe
2152	175fe12292a6e352ff920e5233673bf19f7f4673d7ca5929f1f5ee3042628922N.exe
2152	175fe12292a6e352ff920e5233673bf19f7f4673d7ca5929f1f5ee3042628922N.exe
2152	175fe12292a6e352ff920e5233673bf19f7f4673d7ca5929f1f5ee3042628922N.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

reg.exe

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

Processes:

Soundcrd.exe

description	pid	Process	procid_target
PID 2252 set thread context of 2788	2252	Soundcrd.exe	34
PID 2252 set thread context of 2824	2252	Soundcrd.exe	35

UPX packed file 20 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/2788-52-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2788-47-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2824-50-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2788-49-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2824-55-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2824-54-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2788-58-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2788-60-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2788-59-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2788-61-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2788-62-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2788-63-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2788-64-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2824-65-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2788-70-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2788-74-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2788-78-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2788-82-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2788-88-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2788-92-0x0000000000400000-0x00000000004B5000-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

Processes:

Soundcrd.exe175fe12292a6e352ff920e5233673bf19f7f4673d7ca5929f1f5ee3042628922N.execmd.exereg.exeSoundcrd.exeSoundcrd.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Soundcrd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	175fe12292a6e352ff920e5233673bf19f7f4673d7ca5929f1f5ee3042628922N.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

Processes:

Soundcrd.exe

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

Processes:

Soundcrd.exe

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	Soundcrd.exe

Suspicious use of AdjustPrivilegeToken 24 IoCs

Processes:

Soundcrd.exeSoundcrd.exe

description	pid	Process
Token: SeDebugPrivilege	2824	Soundcrd.exe
Token: SeIncreaseQuotaPrivilege	2788	Soundcrd.exe
Token: SeSecurityPrivilege	2788	Soundcrd.exe
Token: SeTakeOwnershipPrivilege	2788	Soundcrd.exe
Token: SeLoadDriverPrivilege	2788	Soundcrd.exe
Token: SeSystemProfilePrivilege	2788	Soundcrd.exe
Token: SeSystemtimePrivilege	2788	Soundcrd.exe
Token: SeProfSingleProcessPrivilege	2788	Soundcrd.exe
Token: SeIncBasePriorityPrivilege	2788	Soundcrd.exe
Token: SeCreatePagefilePrivilege	2788	Soundcrd.exe
Token: SeBackupPrivilege	2788	Soundcrd.exe
Token: SeRestorePrivilege	2788	Soundcrd.exe
Token: SeShutdownPrivilege	2788	Soundcrd.exe
Token: SeDebugPrivilege	2788	Soundcrd.exe
Token: SeSystemEnvironmentPrivilege	2788	Soundcrd.exe
Token: SeChangeNotifyPrivilege	2788	Soundcrd.exe
Token: SeRemoteShutdownPrivilege	2788	Soundcrd.exe
Token: SeUndockPrivilege	2788	Soundcrd.exe
Token: SeManageVolumePrivilege	2788	Soundcrd.exe
Token: SeImpersonatePrivilege	2788	Soundcrd.exe
Token: SeCreateGlobalPrivilege	2788	Soundcrd.exe
Token: 33	2788	Soundcrd.exe
Token: 34	2788	Soundcrd.exe
Token: 35	2788	Soundcrd.exe

Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

175fe12292a6e352ff920e5233673bf19f7f4673d7ca5929f1f5ee3042628922N.exeSoundcrd.exeSoundcrd.exe

pid	Process
2152	175fe12292a6e352ff920e5233673bf19f7f4673d7ca5929f1f5ee3042628922N.exe
2252	Soundcrd.exe
2824	Soundcrd.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

175fe12292a6e352ff920e5233673bf19f7f4673d7ca5929f1f5ee3042628922N.execmd.exeSoundcrd.exe

description	pid	Process	procid_target
PID 2152 wrote to memory of 3060	2152	175fe12292a6e352ff920e5233673bf19f7f4673d7ca5929f1f5ee3042628922N.exe	30
PID 2152 wrote to memory of 3060	2152	175fe12292a6e352ff920e5233673bf19f7f4673d7ca5929f1f5ee3042628922N.exe	30
PID 2152 wrote to memory of 3060	2152	175fe12292a6e352ff920e5233673bf19f7f4673d7ca5929f1f5ee3042628922N.exe	30
PID 2152 wrote to memory of 3060	2152	175fe12292a6e352ff920e5233673bf19f7f4673d7ca5929f1f5ee3042628922N.exe	30
PID 3060 wrote to memory of 2096	3060	cmd.exe	32
PID 3060 wrote to memory of 2096	3060	cmd.exe	32
PID 3060 wrote to memory of 2096	3060	cmd.exe	32
PID 3060 wrote to memory of 2096	3060	cmd.exe	32
PID 2152 wrote to memory of 2252	2152	175fe12292a6e352ff920e5233673bf19f7f4673d7ca5929f1f5ee3042628922N.exe	33
PID 2152 wrote to memory of 2252	2152	175fe12292a6e352ff920e5233673bf19f7f4673d7ca5929f1f5ee3042628922N.exe	33
PID 2152 wrote to memory of 2252	2152	175fe12292a6e352ff920e5233673bf19f7f4673d7ca5929f1f5ee3042628922N.exe	33
PID 2152 wrote to memory of 2252	2152	175fe12292a6e352ff920e5233673bf19f7f4673d7ca5929f1f5ee3042628922N.exe	33
PID 2252 wrote to memory of 2788	2252	Soundcrd.exe	34
PID 2252 wrote to memory of 2788	2252	Soundcrd.exe	34
PID 2252 wrote to memory of 2788	2252	Soundcrd.exe	34
PID 2252 wrote to memory of 2788	2252	Soundcrd.exe	34
PID 2252 wrote to memory of 2788	2252	Soundcrd.exe	34
PID 2252 wrote to memory of 2788	2252	Soundcrd.exe	34
PID 2252 wrote to memory of 2788	2252	Soundcrd.exe	34
PID 2252 wrote to memory of 2788	2252	Soundcrd.exe	34
PID 2252 wrote to memory of 2788	2252	Soundcrd.exe	34
PID 2252 wrote to memory of 2824	2252	Soundcrd.exe	35
PID 2252 wrote to memory of 2824	2252	Soundcrd.exe	35
PID 2252 wrote to memory of 2824	2252	Soundcrd.exe	35
PID 2252 wrote to memory of 2824	2252	Soundcrd.exe	35
PID 2252 wrote to memory of 2824	2252	Soundcrd.exe	35
PID 2252 wrote to memory of 2824	2252	Soundcrd.exe	35
PID 2252 wrote to memory of 2824	2252	Soundcrd.exe	35
PID 2252 wrote to memory of 2824	2252	Soundcrd.exe	35
PID 2252 wrote to memory of 2824	2252	Soundcrd.exe	35

C:\Users\Admin\AppData\Local\Temp\175fe12292a6e352ff920e5233673bf19f7f4673d7ca5929f1f5ee3042628922N.exe
"C:\Users\Admin\AppData\Local\Temp\175fe12292a6e352ff920e5233673bf19f7f4673d7ca5929f1f5ee3042628922N.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2152
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\WBuPK.bat" "
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3060
- - 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:2096
- 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:2252
- - 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:2788
- - 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:2824

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\WBuPK.bat

Filesize
139B

MD5
173bcce4810d4901872d0ef4f0bfea4e

SHA1
561b03fdfe68b6419fddf57f32e1aab9a6126a2f

SHA256
10ea37eceabbe80fe9814280b66b957636951dbeeed18a9b4d50a1d24a6f1d1d

SHA512
2401e0a5e3f7bf590a0767449da2249d09717e8c1cb71a7475e81d9615580001cfc38705cd1a5b4edc33f7df043bf195e28e4a5442a32bc879dffc6473bd545e

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

Filesize
3.9MB

MD5
42d33dd338de83aca7b7c520a54138a1

SHA1
3a0372f18537840ef7db4f956a1f322df7601d7b

SHA256
c203b9345bb079c720d9b892e6e347788113269b3de044f92204703cb127416b

SHA512
2448135145de49d53ef46f9ee744fe890fa595b47607589b69ec519a7543f4b73a5d4eb183147dc18799c45aef85d13e068dda52dbe0008602816a1b2105b6e8

Download Submit
memory/2152-0-0x0000000000400000-0x00000000007E8000-memory.dmp

Filesize
3.9MB

Download
memory/2788-64-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2788-60-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2788-92-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2788-49-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2788-88-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2788-47-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2788-58-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2788-78-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2788-59-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2788-61-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2788-62-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2788-63-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2788-52-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2788-82-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2788-70-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2788-74-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2824-54-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2824-65-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2824-55-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2824-50-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download