darkcomet | 096ef0a7d06f08738b38369ebbfe928e318a489ec3966c16443e85943d8d7035

Analysis

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

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
05/11/2024, 01:04

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General

Target

096ef0a7d06f08738b38369ebbfe928e318a489ec3966c16443e85943d8d7035N.exe
Size

3.9MB
MD5

dc2cb40dc4d9683db4305a8a560d6400
SHA1

6521f5fcb647781512eb53dee8be9f37e354b53c
SHA256

096ef0a7d06f08738b38369ebbfe928e318a489ec3966c16443e85943d8d7035
SHA512

cf9654d56df81663b26b6b5912b13894be429b8e59b81d25f0f9ef3463a3bb20c715e631fce984eff6478ee52344ed62a12990dae87193ecc1dacd47d1970cfc
SSDEEP

98304:alX3KMj7yBNUVPhd5G0Z5DxdM3hZpmBAlB6D4tyX6kuT4IkQApCgvms0Cv05J5CV:alX3KMj7yBNUVPhd5G0Z5DxdM3hZpmBV

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
2660	Soundcrd.exe
2628	Soundcrd.exe
2704	Soundcrd.exe

Loads dropped DLL 7 IoCs

pid	Process
2224	096ef0a7d06f08738b38369ebbfe928e318a489ec3966c16443e85943d8d7035N.exe
2224	096ef0a7d06f08738b38369ebbfe928e318a489ec3966c16443e85943d8d7035N.exe
2224	096ef0a7d06f08738b38369ebbfe928e318a489ec3966c16443e85943d8d7035N.exe
2224	096ef0a7d06f08738b38369ebbfe928e318a489ec3966c16443e85943d8d7035N.exe
2224	096ef0a7d06f08738b38369ebbfe928e318a489ec3966c16443e85943d8d7035N.exe
2660	Soundcrd.exe
2660	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-1-5-21-2039016743-699959520-214465309-1000\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 2660 set thread context of 2628	2660	Soundcrd.exe	35
PID 2660 set thread context of 2704	2660	Soundcrd.exe	36

UPX packed file 23 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2224-2-0x0000000000400000-0x00000000007EC000-memory.dmp	upx
behavioral1/files/0x0009000000018bdd-27.dat	upx
behavioral1/memory/2704-59-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2628-50-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2224-49-0x0000000000400000-0x00000000007EC000-memory.dmp	upx
behavioral1/memory/2628-62-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2660-60-0x0000000000400000-0x00000000007EC000-memory.dmp	upx
behavioral1/memory/2628-63-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2704-58-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2628-65-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2628-64-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2628-56-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2704-54-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2660-52-0x0000000000400000-0x00000000007EC000-memory.dmp	upx
behavioral1/memory/2628-68-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2628-69-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2628-70-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2704-71-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2628-72-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2628-77-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2628-81-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2628-85-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2628-89-0x0000000000400000-0x00000000004B5000-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	096ef0a7d06f08738b38369ebbfe928e318a489ec3966c16443e85943d8d7035N.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 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	2704	Soundcrd.exe
Token: SeIncreaseQuotaPrivilege	2628	Soundcrd.exe
Token: SeSecurityPrivilege	2628	Soundcrd.exe
Token: SeTakeOwnershipPrivilege	2628	Soundcrd.exe
Token: SeLoadDriverPrivilege	2628	Soundcrd.exe
Token: SeSystemProfilePrivilege	2628	Soundcrd.exe
Token: SeSystemtimePrivilege	2628	Soundcrd.exe
Token: SeProfSingleProcessPrivilege	2628	Soundcrd.exe
Token: SeIncBasePriorityPrivilege	2628	Soundcrd.exe
Token: SeCreatePagefilePrivilege	2628	Soundcrd.exe
Token: SeBackupPrivilege	2628	Soundcrd.exe
Token: SeRestorePrivilege	2628	Soundcrd.exe
Token: SeShutdownPrivilege	2628	Soundcrd.exe
Token: SeDebugPrivilege	2628	Soundcrd.exe
Token: SeSystemEnvironmentPrivilege	2628	Soundcrd.exe
Token: SeChangeNotifyPrivilege	2628	Soundcrd.exe
Token: SeRemoteShutdownPrivilege	2628	Soundcrd.exe
Token: SeUndockPrivilege	2628	Soundcrd.exe
Token: SeManageVolumePrivilege	2628	Soundcrd.exe
Token: SeImpersonatePrivilege	2628	Soundcrd.exe
Token: SeCreateGlobalPrivilege	2628	Soundcrd.exe
Token: 33	2628	Soundcrd.exe
Token: 34	2628	Soundcrd.exe
Token: 35	2628	Soundcrd.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2224	096ef0a7d06f08738b38369ebbfe928e318a489ec3966c16443e85943d8d7035N.exe
2660	Soundcrd.exe
2704	Soundcrd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2224 wrote to memory of 2784	2224	096ef0a7d06f08738b38369ebbfe928e318a489ec3966c16443e85943d8d7035N.exe	31
PID 2224 wrote to memory of 2784	2224	096ef0a7d06f08738b38369ebbfe928e318a489ec3966c16443e85943d8d7035N.exe	31
PID 2224 wrote to memory of 2784	2224	096ef0a7d06f08738b38369ebbfe928e318a489ec3966c16443e85943d8d7035N.exe	31
PID 2224 wrote to memory of 2784	2224	096ef0a7d06f08738b38369ebbfe928e318a489ec3966c16443e85943d8d7035N.exe	31
PID 2784 wrote to memory of 2936	2784	cmd.exe	33
PID 2784 wrote to memory of 2936	2784	cmd.exe	33
PID 2784 wrote to memory of 2936	2784	cmd.exe	33
PID 2784 wrote to memory of 2936	2784	cmd.exe	33
PID 2224 wrote to memory of 2660	2224	096ef0a7d06f08738b38369ebbfe928e318a489ec3966c16443e85943d8d7035N.exe	34
PID 2224 wrote to memory of 2660	2224	096ef0a7d06f08738b38369ebbfe928e318a489ec3966c16443e85943d8d7035N.exe	34
PID 2224 wrote to memory of 2660	2224	096ef0a7d06f08738b38369ebbfe928e318a489ec3966c16443e85943d8d7035N.exe	34
PID 2224 wrote to memory of 2660	2224	096ef0a7d06f08738b38369ebbfe928e318a489ec3966c16443e85943d8d7035N.exe	34
PID 2660 wrote to memory of 2628	2660	Soundcrd.exe	35
PID 2660 wrote to memory of 2628	2660	Soundcrd.exe	35
PID 2660 wrote to memory of 2628	2660	Soundcrd.exe	35
PID 2660 wrote to memory of 2628	2660	Soundcrd.exe	35
PID 2660 wrote to memory of 2628	2660	Soundcrd.exe	35
PID 2660 wrote to memory of 2628	2660	Soundcrd.exe	35
PID 2660 wrote to memory of 2628	2660	Soundcrd.exe	35
PID 2660 wrote to memory of 2628	2660	Soundcrd.exe	35
PID 2660 wrote to memory of 2628	2660	Soundcrd.exe	35
PID 2660 wrote to memory of 2704	2660	Soundcrd.exe	36
PID 2660 wrote to memory of 2704	2660	Soundcrd.exe	36
PID 2660 wrote to memory of 2704	2660	Soundcrd.exe	36
PID 2660 wrote to memory of 2704	2660	Soundcrd.exe	36
PID 2660 wrote to memory of 2704	2660	Soundcrd.exe	36
PID 2660 wrote to memory of 2704	2660	Soundcrd.exe	36
PID 2660 wrote to memory of 2704	2660	Soundcrd.exe	36
PID 2660 wrote to memory of 2704	2660	Soundcrd.exe	36
PID 2660 wrote to memory of 2704	2660	Soundcrd.exe	36

C:\Users\Admin\AppData\Local\Temp\096ef0a7d06f08738b38369ebbfe928e318a489ec3966c16443e85943d8d7035N.exe
"C:\Users\Admin\AppData\Local\Temp\096ef0a7d06f08738b38369ebbfe928e318a489ec3966c16443e85943d8d7035N.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2224
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\NlMwk.bat" "
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2784
- - 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:2936
- 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:2660
- - 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:2628
- - 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:2704

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\NlMwk.bat

Filesize
139B

MD5
173bcce4810d4901872d0ef4f0bfea4e

SHA1
561b03fdfe68b6419fddf57f32e1aab9a6126a2f

SHA256
10ea37eceabbe80fe9814280b66b957636951dbeeed18a9b4d50a1d24a6f1d1d

SHA512
2401e0a5e3f7bf590a0767449da2249d09717e8c1cb71a7475e81d9615580001cfc38705cd1a5b4edc33f7df043bf195e28e4a5442a32bc879dffc6473bd545e

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

Filesize
3.9MB

MD5
f05d272bae9f5a70e46a6e4b64b84acc

SHA1
d049a39b75f346a7ca0732d6921478bf2b03a7c1

SHA256
35ba5eba10f5cd114433a20231d4fc4807a41c2e6ec9a13359ddeb8c245a283a

SHA512
b2071a9b3625cca009247febb3dcf24aab5e77f5b696e4160ac706166abe0934325648f8a03ca4d8fcbf393639d26351d7df89424ed6f5017a2503b7f4e1b059

Download Submit
memory/2224-48-0x0000000003AF0000-0x0000000003EDC000-memory.dmp

Filesize
3.9MB

Download
memory/2224-2-0x0000000000400000-0x00000000007EC000-memory.dmp

Filesize
3.9MB

Download
memory/2224-47-0x0000000003AF0000-0x0000000003EDC000-memory.dmp

Filesize
3.9MB

Download
memory/2224-49-0x0000000000400000-0x00000000007EC000-memory.dmp

Filesize
3.9MB

Download
memory/2628-68-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2628-65-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2628-62-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2628-89-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2628-85-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2628-63-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2628-81-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2628-70-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2628-64-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2628-56-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2628-77-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2628-50-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2628-72-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2628-69-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2660-52-0x0000000000400000-0x00000000007EC000-memory.dmp

Filesize
3.9MB

Download
memory/2660-60-0x0000000000400000-0x00000000007EC000-memory.dmp

Filesize
3.9MB

Download
memory/2660-61-0x0000000002BB0000-0x0000000002F9C000-memory.dmp

Filesize
3.9MB

Download
memory/2704-71-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2704-59-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2704-54-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2704-58-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads