darkcomet | 175fe12292a6e352ff920e5233673bf19f7f4673d7ca5929f1f5ee3042628922

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
04-11-2024 09:34

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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

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

Executes dropped EXE 3 IoCs

pid	Process
2776	Soundcrd.exe
2796	Soundcrd.exe
2920	Soundcrd.exe

Loads dropped DLL 5 IoCs

pid	Process
2084	175fe12292a6e352ff920e5233673bf19f7f4673d7ca5929f1f5ee3042628922N.exe
2084	175fe12292a6e352ff920e5233673bf19f7f4673d7ca5929f1f5ee3042628922N.exe
2084	175fe12292a6e352ff920e5233673bf19f7f4673d7ca5929f1f5ee3042628922N.exe
2084	175fe12292a6e352ff920e5233673bf19f7f4673d7ca5929f1f5ee3042628922N.exe
2084	175fe12292a6e352ff920e5233673bf19f7f4673d7ca5929f1f5ee3042628922N.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 2776 set thread context of 2796	2776	Soundcrd.exe	35
PID 2776 set thread context of 2920	2776	Soundcrd.exe	36

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2796-49-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2796-50-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2796-47-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2796-51-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2796-52-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2796-53-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2796-54-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2796-56-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2796-55-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2920-57-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2920-59-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2920-60-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2796-63-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2920-65-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2796-68-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2796-72-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2796-76-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2796-80-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2796-84-0x0000000000400000-0x00000000004B5000-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	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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	175fe12292a6e352ff920e5233673bf19f7f4673d7ca5929f1f5ee3042628922N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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: SeIncreaseQuotaPrivilege	2796	Soundcrd.exe
Token: SeSecurityPrivilege	2796	Soundcrd.exe
Token: SeTakeOwnershipPrivilege	2796	Soundcrd.exe
Token: SeLoadDriverPrivilege	2796	Soundcrd.exe
Token: SeSystemProfilePrivilege	2796	Soundcrd.exe
Token: SeSystemtimePrivilege	2796	Soundcrd.exe
Token: SeProfSingleProcessPrivilege	2796	Soundcrd.exe
Token: SeIncBasePriorityPrivilege	2796	Soundcrd.exe
Token: SeCreatePagefilePrivilege	2796	Soundcrd.exe
Token: SeBackupPrivilege	2796	Soundcrd.exe
Token: SeRestorePrivilege	2796	Soundcrd.exe
Token: SeShutdownPrivilege	2796	Soundcrd.exe
Token: SeDebugPrivilege	2796	Soundcrd.exe
Token: SeSystemEnvironmentPrivilege	2796	Soundcrd.exe
Token: SeChangeNotifyPrivilege	2796	Soundcrd.exe
Token: SeRemoteShutdownPrivilege	2796	Soundcrd.exe
Token: SeUndockPrivilege	2796	Soundcrd.exe
Token: SeManageVolumePrivilege	2796	Soundcrd.exe
Token: SeImpersonatePrivilege	2796	Soundcrd.exe
Token: SeCreateGlobalPrivilege	2796	Soundcrd.exe
Token: 33	2796	Soundcrd.exe
Token: 34	2796	Soundcrd.exe
Token: 35	2796	Soundcrd.exe
Token: SeDebugPrivilege	2920	Soundcrd.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2084	175fe12292a6e352ff920e5233673bf19f7f4673d7ca5929f1f5ee3042628922N.exe
2776	Soundcrd.exe
2920	Soundcrd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2084 wrote to memory of 2608	2084	175fe12292a6e352ff920e5233673bf19f7f4673d7ca5929f1f5ee3042628922N.exe	31
PID 2084 wrote to memory of 2608	2084	175fe12292a6e352ff920e5233673bf19f7f4673d7ca5929f1f5ee3042628922N.exe	31
PID 2084 wrote to memory of 2608	2084	175fe12292a6e352ff920e5233673bf19f7f4673d7ca5929f1f5ee3042628922N.exe	31
PID 2084 wrote to memory of 2608	2084	175fe12292a6e352ff920e5233673bf19f7f4673d7ca5929f1f5ee3042628922N.exe	31
PID 2608 wrote to memory of 2724	2608	cmd.exe	33
PID 2608 wrote to memory of 2724	2608	cmd.exe	33
PID 2608 wrote to memory of 2724	2608	cmd.exe	33
PID 2608 wrote to memory of 2724	2608	cmd.exe	33
PID 2084 wrote to memory of 2776	2084	175fe12292a6e352ff920e5233673bf19f7f4673d7ca5929f1f5ee3042628922N.exe	34
PID 2084 wrote to memory of 2776	2084	175fe12292a6e352ff920e5233673bf19f7f4673d7ca5929f1f5ee3042628922N.exe	34
PID 2084 wrote to memory of 2776	2084	175fe12292a6e352ff920e5233673bf19f7f4673d7ca5929f1f5ee3042628922N.exe	34
PID 2084 wrote to memory of 2776	2084	175fe12292a6e352ff920e5233673bf19f7f4673d7ca5929f1f5ee3042628922N.exe	34
PID 2776 wrote to memory of 2796	2776	Soundcrd.exe	35
PID 2776 wrote to memory of 2796	2776	Soundcrd.exe	35
PID 2776 wrote to memory of 2796	2776	Soundcrd.exe	35
PID 2776 wrote to memory of 2796	2776	Soundcrd.exe	35
PID 2776 wrote to memory of 2796	2776	Soundcrd.exe	35
PID 2776 wrote to memory of 2796	2776	Soundcrd.exe	35
PID 2776 wrote to memory of 2796	2776	Soundcrd.exe	35
PID 2776 wrote to memory of 2796	2776	Soundcrd.exe	35
PID 2776 wrote to memory of 2796	2776	Soundcrd.exe	35
PID 2776 wrote to memory of 2920	2776	Soundcrd.exe	36
PID 2776 wrote to memory of 2920	2776	Soundcrd.exe	36
PID 2776 wrote to memory of 2920	2776	Soundcrd.exe	36
PID 2776 wrote to memory of 2920	2776	Soundcrd.exe	36
PID 2776 wrote to memory of 2920	2776	Soundcrd.exe	36
PID 2776 wrote to memory of 2920	2776	Soundcrd.exe	36
PID 2776 wrote to memory of 2920	2776	Soundcrd.exe	36
PID 2776 wrote to memory of 2920	2776	Soundcrd.exe	36
PID 2776 wrote to memory of 2920	2776	Soundcrd.exe	36

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:2084
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\Mlwjs.bat" "
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2608
- - 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:2724
- 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:2776
- - 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:2796
- - 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:2920

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\Mlwjs.bat

Filesize
139B

MD5
173bcce4810d4901872d0ef4f0bfea4e

SHA1
561b03fdfe68b6419fddf57f32e1aab9a6126a2f

SHA256
10ea37eceabbe80fe9814280b66b957636951dbeeed18a9b4d50a1d24a6f1d1d

SHA512
2401e0a5e3f7bf590a0767449da2249d09717e8c1cb71a7475e81d9615580001cfc38705cd1a5b4edc33f7df043bf195e28e4a5442a32bc879dffc6473bd545e

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

Filesize
3.9MB

MD5
687e8f8cbbc3d8abe372b02180df189b

SHA1
67bbec91131a7ea982a0aaf7ae53a50a043c1785

SHA256
84037a3a04518b25785d11b3ed5b409e2447fdc99b6b00470b559e0417f79b90

SHA512
40b8a8ea0802b72834c4cf167512bbc1b3987bdbde69ca56f6d6e1ee4567b7fc1f3dead82afa2c91eb1230393dd6d7dc5b2a69c3807da99bcc352bd1ce4bf4b0

Download Submit
memory/2084-0-0x0000000000400000-0x00000000007E8000-memory.dmp

Filesize
3.9MB

Download
memory/2796-56-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2796-49-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2796-47-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2796-51-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2796-52-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2796-53-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2796-54-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2796-72-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2796-55-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2796-50-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2796-84-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2796-80-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2796-63-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2796-76-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2796-68-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2920-57-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2920-65-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2920-60-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2920-59-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads