darkcomet | c0d05ffb5f48fb2dc50ca22aa8e664c5b3f8eaf9b14575d9990953e4c3129b44

Analysis

max time kernel
150s
max time network
139s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
29-10-2024 04:43

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General

Target

c0d05ffb5f48fb2dc50ca22aa8e664c5b3f8eaf9b14575d9990953e4c3129b44.exe
Size

3.9MB
MD5

62ac9c1d7c6486c065f8d5a486efd755
SHA1

65a5445a571e4d5791e51dd8778beac1f97014c0
SHA256

c0d05ffb5f48fb2dc50ca22aa8e664c5b3f8eaf9b14575d9990953e4c3129b44
SHA512

f58d7767b8ce535d542804fb81f6a516fc5055cea294c3c0cd0c4b74f60d87133a2ad4a6d9e1b5b6ba448a2bc92558a810c93e532ca9b943e54e711f2a24b1ad
SSDEEP

98304:alX3KMj7yBNUVPhd5G0Z5DxdM3hZpmBAlB6D4tyX6kuT4IkQApCgvms0Cv05J5Cq:alX3KMj7yBNUVPhd5G0Z5DxdM3hZpmBq

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
2672	Soundcrd.exe
2552	Soundcrd.exe
2844	Soundcrd.exe

Loads dropped DLL 7 IoCs

Processes:

c0d05ffb5f48fb2dc50ca22aa8e664c5b3f8eaf9b14575d9990953e4c3129b44.exeSoundcrd.exe

pid	Process
784	c0d05ffb5f48fb2dc50ca22aa8e664c5b3f8eaf9b14575d9990953e4c3129b44.exe
784	c0d05ffb5f48fb2dc50ca22aa8e664c5b3f8eaf9b14575d9990953e4c3129b44.exe
784	c0d05ffb5f48fb2dc50ca22aa8e664c5b3f8eaf9b14575d9990953e4c3129b44.exe
784	c0d05ffb5f48fb2dc50ca22aa8e664c5b3f8eaf9b14575d9990953e4c3129b44.exe
784	c0d05ffb5f48fb2dc50ca22aa8e664c5b3f8eaf9b14575d9990953e4c3129b44.exe
2672	Soundcrd.exe
2672	Soundcrd.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-1-5-21-3551809350-4263495960-1443967649-1000\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 2672 set thread context of 2552	2672	Soundcrd.exe	35
PID 2672 set thread context of 2844	2672	Soundcrd.exe	36

UPX packed file 25 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/784-0-0x0000000000400000-0x00000000007EC000-memory.dmp	upx
behavioral1/files/0x0008000000018741-27.dat	upx
behavioral1/memory/784-48-0x0000000000400000-0x00000000007EC000-memory.dmp	upx
behavioral1/memory/2552-53-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2552-54-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2552-57-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2552-51-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2552-58-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2552-60-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2552-59-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2552-62-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2552-61-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2844-67-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2844-66-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2672-68-0x0000000000400000-0x00000000007EC000-memory.dmp	upx
behavioral1/memory/2844-65-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2844-63-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2552-71-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2844-74-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2552-77-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2552-81-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2552-85-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2552-89-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2552-93-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2552-97-0x0000000000400000-0x00000000004B5000-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:

c0d05ffb5f48fb2dc50ca22aa8e664c5b3f8eaf9b14575d9990953e4c3129b44.execmd.exereg.exeSoundcrd.exeSoundcrd.exeSoundcrd.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c0d05ffb5f48fb2dc50ca22aa8e664c5b3f8eaf9b14575d9990953e4c3129b44.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

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: SeIncreaseQuotaPrivilege	2552	Soundcrd.exe
Token: SeSecurityPrivilege	2552	Soundcrd.exe
Token: SeTakeOwnershipPrivilege	2552	Soundcrd.exe
Token: SeLoadDriverPrivilege	2552	Soundcrd.exe
Token: SeSystemProfilePrivilege	2552	Soundcrd.exe
Token: SeSystemtimePrivilege	2552	Soundcrd.exe
Token: SeProfSingleProcessPrivilege	2552	Soundcrd.exe
Token: SeIncBasePriorityPrivilege	2552	Soundcrd.exe
Token: SeCreatePagefilePrivilege	2552	Soundcrd.exe
Token: SeBackupPrivilege	2552	Soundcrd.exe
Token: SeRestorePrivilege	2552	Soundcrd.exe
Token: SeShutdownPrivilege	2552	Soundcrd.exe
Token: SeDebugPrivilege	2552	Soundcrd.exe
Token: SeSystemEnvironmentPrivilege	2552	Soundcrd.exe
Token: SeChangeNotifyPrivilege	2552	Soundcrd.exe
Token: SeRemoteShutdownPrivilege	2552	Soundcrd.exe
Token: SeUndockPrivilege	2552	Soundcrd.exe
Token: SeManageVolumePrivilege	2552	Soundcrd.exe
Token: SeImpersonatePrivilege	2552	Soundcrd.exe
Token: SeCreateGlobalPrivilege	2552	Soundcrd.exe
Token: 33	2552	Soundcrd.exe
Token: 34	2552	Soundcrd.exe
Token: 35	2552	Soundcrd.exe
Token: SeDebugPrivilege	2844	Soundcrd.exe

Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

c0d05ffb5f48fb2dc50ca22aa8e664c5b3f8eaf9b14575d9990953e4c3129b44.exeSoundcrd.exeSoundcrd.exe

pid	Process
784	c0d05ffb5f48fb2dc50ca22aa8e664c5b3f8eaf9b14575d9990953e4c3129b44.exe
2672	Soundcrd.exe
2844	Soundcrd.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

c0d05ffb5f48fb2dc50ca22aa8e664c5b3f8eaf9b14575d9990953e4c3129b44.execmd.exeSoundcrd.exe

description	pid	Process	procid_target
PID 784 wrote to memory of 2628	784	c0d05ffb5f48fb2dc50ca22aa8e664c5b3f8eaf9b14575d9990953e4c3129b44.exe	31
PID 784 wrote to memory of 2628	784	c0d05ffb5f48fb2dc50ca22aa8e664c5b3f8eaf9b14575d9990953e4c3129b44.exe	31
PID 784 wrote to memory of 2628	784	c0d05ffb5f48fb2dc50ca22aa8e664c5b3f8eaf9b14575d9990953e4c3129b44.exe	31
PID 784 wrote to memory of 2628	784	c0d05ffb5f48fb2dc50ca22aa8e664c5b3f8eaf9b14575d9990953e4c3129b44.exe	31
PID 2628 wrote to memory of 2128	2628	cmd.exe	33
PID 2628 wrote to memory of 2128	2628	cmd.exe	33
PID 2628 wrote to memory of 2128	2628	cmd.exe	33
PID 2628 wrote to memory of 2128	2628	cmd.exe	33
PID 784 wrote to memory of 2672	784	c0d05ffb5f48fb2dc50ca22aa8e664c5b3f8eaf9b14575d9990953e4c3129b44.exe	34
PID 784 wrote to memory of 2672	784	c0d05ffb5f48fb2dc50ca22aa8e664c5b3f8eaf9b14575d9990953e4c3129b44.exe	34
PID 784 wrote to memory of 2672	784	c0d05ffb5f48fb2dc50ca22aa8e664c5b3f8eaf9b14575d9990953e4c3129b44.exe	34
PID 784 wrote to memory of 2672	784	c0d05ffb5f48fb2dc50ca22aa8e664c5b3f8eaf9b14575d9990953e4c3129b44.exe	34
PID 2672 wrote to memory of 2552	2672	Soundcrd.exe	35
PID 2672 wrote to memory of 2552	2672	Soundcrd.exe	35
PID 2672 wrote to memory of 2552	2672	Soundcrd.exe	35
PID 2672 wrote to memory of 2552	2672	Soundcrd.exe	35
PID 2672 wrote to memory of 2552	2672	Soundcrd.exe	35
PID 2672 wrote to memory of 2552	2672	Soundcrd.exe	35
PID 2672 wrote to memory of 2552	2672	Soundcrd.exe	35
PID 2672 wrote to memory of 2552	2672	Soundcrd.exe	35
PID 2672 wrote to memory of 2552	2672	Soundcrd.exe	35
PID 2672 wrote to memory of 2844	2672	Soundcrd.exe	36
PID 2672 wrote to memory of 2844	2672	Soundcrd.exe	36
PID 2672 wrote to memory of 2844	2672	Soundcrd.exe	36
PID 2672 wrote to memory of 2844	2672	Soundcrd.exe	36
PID 2672 wrote to memory of 2844	2672	Soundcrd.exe	36
PID 2672 wrote to memory of 2844	2672	Soundcrd.exe	36
PID 2672 wrote to memory of 2844	2672	Soundcrd.exe	36
PID 2672 wrote to memory of 2844	2672	Soundcrd.exe	36
PID 2672 wrote to memory of 2844	2672	Soundcrd.exe	36

C:\Users\Admin\AppData\Local\Temp\c0d05ffb5f48fb2dc50ca22aa8e664c5b3f8eaf9b14575d9990953e4c3129b44.exe
"C:\Users\Admin\AppData\Local\Temp\c0d05ffb5f48fb2dc50ca22aa8e664c5b3f8eaf9b14575d9990953e4c3129b44.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:784
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\UaPOz.bat" "
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2628
- - 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:2128
- 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:2672
- - 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:2552
- - 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:2844

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\UaPOz.bat

Filesize
139B

MD5
173bcce4810d4901872d0ef4f0bfea4e

SHA1
561b03fdfe68b6419fddf57f32e1aab9a6126a2f

SHA256
10ea37eceabbe80fe9814280b66b957636951dbeeed18a9b4d50a1d24a6f1d1d

SHA512
2401e0a5e3f7bf590a0767449da2249d09717e8c1cb71a7475e81d9615580001cfc38705cd1a5b4edc33f7df043bf195e28e4a5442a32bc879dffc6473bd545e

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

Filesize
3.9MB

MD5
6b786ec507c9c7ac9aa227945f8f03be

SHA1
2a111a07b069d461c75da2ee81e128b6b93b6954

SHA256
09b7aeeca72c72b38dea97d819eb3005fac6e6b036fe3fe223da46be54d916ce

SHA512
a40a055bdb3d7e9826027afb865e1655e2e19b8d51049bbeea315fbfaf82b1a1b2a7e0de76686b851c340c8df559934ad9eec80d1f5b61b686aa9fb3537c062e

Download Submit
memory/784-0-0x0000000000400000-0x00000000007EC000-memory.dmp

Filesize
3.9MB

Download
memory/784-44-0x00000000037E0000-0x0000000003BCC000-memory.dmp

Filesize
3.9MB

Download
memory/784-43-0x00000000037E0000-0x0000000003BCC000-memory.dmp

Filesize
3.9MB

Download
memory/784-42-0x00000000037E0000-0x0000000003BCC000-memory.dmp

Filesize
3.9MB

Download
memory/784-48-0x0000000000400000-0x00000000007EC000-memory.dmp

Filesize
3.9MB

Download
memory/2552-59-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2552-61-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2552-77-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2552-57-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2552-51-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2552-58-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2552-60-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2552-53-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2552-62-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2552-81-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2552-97-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2552-54-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2552-85-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2552-93-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2552-89-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2552-71-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2672-68-0x0000000000400000-0x00000000007EC000-memory.dmp

Filesize
3.9MB

Download
memory/2672-56-0x0000000002AB0000-0x0000000002E9C000-memory.dmp

Filesize
3.9MB

Download
memory/2844-66-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2844-74-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2844-63-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2844-65-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2844-67-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download