darkcomet | 6c1415a50022429cfd6f556e388ed02dafad0da3b62a0410c7415f9e12c788b7

General

Target

6c1415a50022429cfd6f556e388ed02dafad0da3b62a0410c7415f9e12c788b7.exe
Size

3.8MB
MD5

3e88b0e5b68aa272b984a52cc1e7d728
SHA1

70ba6e881e63cb609c189e2a54408ee52612fcff
SHA256

6c1415a50022429cfd6f556e388ed02dafad0da3b62a0410c7415f9e12c788b7
SHA512

ab3eca26be48b5fc46eb599c889593652b70aaf05da9cd4f8349e1d8914222d88caf3c7d3c4d4f3818630ddbf68bc8b96c10bb721b141ee37082155ce0484ca0
SSDEEP

98304:3i4hTLOMtHDMlANqnfVGPyhcMYg4lSiSLCQrdGLcjFjj/eWKS5h7EleIljztU/q5:3i4hTLOMtHDMlANqnfVGPyhcMYg4lSi7

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:

mcsft.exe

description ioc process

Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate mcsft.exe
Executes dropped EXE 2 IoCs

Processes:

mcsft.exemcsft.exe

pid process

1520 mcsft.exe
2808 mcsft.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	mcsft.exe

pid	process
1520	mcsft.exe
2808	mcsft.exe

Loads dropped DLL 6 IoCs

Processes:

6c1415a50022429cfd6f556e388ed02dafad0da3b62a0410c7415f9e12c788b7.exemcsft.exe

pid	process
328	6c1415a50022429cfd6f556e388ed02dafad0da3b62a0410c7415f9e12c788b7.exe
328	6c1415a50022429cfd6f556e388ed02dafad0da3b62a0410c7415f9e12c788b7.exe
328	6c1415a50022429cfd6f556e388ed02dafad0da3b62a0410c7415f9e12c788b7.exe
328	6c1415a50022429cfd6f556e388ed02dafad0da3b62a0410c7415f9e12c788b7.exe
328	6c1415a50022429cfd6f556e388ed02dafad0da3b62a0410c7415f9e12c788b7.exe
1520	mcsft.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-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows\CurrentVersion\Run\Mcrosoft = "C:\\Users\\Admin\\AppData\\Roaming\\mcsft.exe"	reg.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

mcsft.exe

description pid process target process

PID 1520 set thread context of 2808 1520 mcsft.exe mcsft.exe

description	pid	process	target process
PID 1520 set thread context of 2808	1520	mcsft.exe	mcsft.exe

UPX packed file 28 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/328-2-0x0000000000400000-0x00000000007C9000-memory.dmp	upx
C:\Users\Admin\AppData\Roaming\mcsft.exe	upx
behavioral1/memory/328-42-0x0000000000400000-0x00000000007C9000-memory.dmp	upx
behavioral1/memory/2808-50-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/1520-53-0x0000000000400000-0x00000000007C9000-memory.dmp	upx
behavioral1/memory/2808-54-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2808-52-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2808-55-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2808-57-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2808-58-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2808-61-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2808-60-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2808-59-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2808-56-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/328-62-0x00000000039B0000-0x0000000003D79000-memory.dmp	upx
behavioral1/memory/2808-63-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2808-64-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2808-65-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2808-66-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2808-67-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2808-68-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2808-69-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2808-70-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2808-71-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2808-72-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2808-73-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2808-74-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2808-75-0x0000000000400000-0x00000000004B5000-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 5 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:

6c1415a50022429cfd6f556e388ed02dafad0da3b62a0410c7415f9e12c788b7.execmd.exereg.exemcsft.exemcsft.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	6c1415a50022429cfd6f556e388ed02dafad0da3b62a0410c7415f9e12c788b7.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	mcsft.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mcsft.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:

mcsft.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	mcsft.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	mcsft.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	mcsft.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	mcsft.exe

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry
T1012

System Information Discovery
T1082

Processes:

mcsft.exe

description ioc process

Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier mcsft.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	mcsft.exe

Suspicious use of AdjustPrivilegeToken 23 IoCs

Processes:

mcsft.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	2808	mcsft.exe
Token: SeSecurityPrivilege	2808	mcsft.exe
Token: SeTakeOwnershipPrivilege	2808	mcsft.exe
Token: SeLoadDriverPrivilege	2808	mcsft.exe
Token: SeSystemProfilePrivilege	2808	mcsft.exe
Token: SeSystemtimePrivilege	2808	mcsft.exe
Token: SeProfSingleProcessPrivilege	2808	mcsft.exe
Token: SeIncBasePriorityPrivilege	2808	mcsft.exe
Token: SeCreatePagefilePrivilege	2808	mcsft.exe
Token: SeBackupPrivilege	2808	mcsft.exe
Token: SeRestorePrivilege	2808	mcsft.exe
Token: SeShutdownPrivilege	2808	mcsft.exe
Token: SeDebugPrivilege	2808	mcsft.exe
Token: SeSystemEnvironmentPrivilege	2808	mcsft.exe
Token: SeChangeNotifyPrivilege	2808	mcsft.exe
Token: SeRemoteShutdownPrivilege	2808	mcsft.exe
Token: SeUndockPrivilege	2808	mcsft.exe
Token: SeManageVolumePrivilege	2808	mcsft.exe
Token: SeImpersonatePrivilege	2808	mcsft.exe
Token: SeCreateGlobalPrivilege	2808	mcsft.exe
Token: 33	2808	mcsft.exe
Token: 34	2808	mcsft.exe
Token: 35	2808	mcsft.exe

Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

6c1415a50022429cfd6f556e388ed02dafad0da3b62a0410c7415f9e12c788b7.exemcsft.exemcsft.exe

pid process

328 6c1415a50022429cfd6f556e388ed02dafad0da3b62a0410c7415f9e12c788b7.exe
1520 mcsft.exe
2808 mcsft.exe

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

6c1415a50022429cfd6f556e388ed02dafad0da3b62a0410c7415f9e12c788b7.execmd.exemcsft.exe

description	pid	process	target process
PID 328 wrote to memory of 2492	328	6c1415a50022429cfd6f556e388ed02dafad0da3b62a0410c7415f9e12c788b7.exe	cmd.exe
PID 328 wrote to memory of 2492	328	6c1415a50022429cfd6f556e388ed02dafad0da3b62a0410c7415f9e12c788b7.exe	cmd.exe
PID 328 wrote to memory of 2492	328	6c1415a50022429cfd6f556e388ed02dafad0da3b62a0410c7415f9e12c788b7.exe	cmd.exe
PID 328 wrote to memory of 2492	328	6c1415a50022429cfd6f556e388ed02dafad0da3b62a0410c7415f9e12c788b7.exe	cmd.exe
PID 2492 wrote to memory of 2224	2492	cmd.exe	reg.exe
PID 2492 wrote to memory of 2224	2492	cmd.exe	reg.exe
PID 2492 wrote to memory of 2224	2492	cmd.exe	reg.exe
PID 2492 wrote to memory of 2224	2492	cmd.exe	reg.exe
PID 328 wrote to memory of 1520	328	6c1415a50022429cfd6f556e388ed02dafad0da3b62a0410c7415f9e12c788b7.exe	mcsft.exe
PID 328 wrote to memory of 1520	328	6c1415a50022429cfd6f556e388ed02dafad0da3b62a0410c7415f9e12c788b7.exe	mcsft.exe
PID 328 wrote to memory of 1520	328	6c1415a50022429cfd6f556e388ed02dafad0da3b62a0410c7415f9e12c788b7.exe	mcsft.exe
PID 328 wrote to memory of 1520	328	6c1415a50022429cfd6f556e388ed02dafad0da3b62a0410c7415f9e12c788b7.exe	mcsft.exe
PID 1520 wrote to memory of 2808	1520	mcsft.exe	mcsft.exe
PID 1520 wrote to memory of 2808	1520	mcsft.exe	mcsft.exe
PID 1520 wrote to memory of 2808	1520	mcsft.exe	mcsft.exe
PID 1520 wrote to memory of 2808	1520	mcsft.exe	mcsft.exe
PID 1520 wrote to memory of 2808	1520	mcsft.exe	mcsft.exe
PID 1520 wrote to memory of 2808	1520	mcsft.exe	mcsft.exe
PID 1520 wrote to memory of 2808	1520	mcsft.exe	mcsft.exe
PID 1520 wrote to memory of 2808	1520	mcsft.exe	mcsft.exe
PID 1520 wrote to memory of 2808	1520	mcsft.exe	mcsft.exe

C:\Users\Admin\AppData\Local\Temp\6c1415a50022429cfd6f556e388ed02dafad0da3b62a0410c7415f9e12c788b7.exe
"C:\Users\Admin\AppData\Local\Temp\6c1415a50022429cfd6f556e388ed02dafad0da3b62a0410c7415f9e12c788b7.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:328
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\GFamP.bat" "
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2492
- - C:\Windows\SysWOW64\reg.exe
    REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "Mcrosoft" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\mcsft.exe" /f
    3⤵
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    PID:2224
- C:\Users\Admin\AppData\Roaming\mcsft.exe
  "C:\Users\Admin\AppData\Roaming\mcsft.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:1520
- - C:\Users\Admin\AppData\Roaming\mcsft.exe
    C:\Users\Admin\AppData\Roaming\mcsft.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
    - Suspicious use of SetWindowsHookEx
    PID:2808

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

3

T1012

System Information Discovery

4

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\GFamP.bat

Filesize
135B

MD5
a5feca573884d76f559b996d45e8ad9a

SHA1
0e81a993f3af4e31d60653dc2513186f0495f1c8

SHA256
c98e20d46d6465febb5d29cfab51241521ea5d6cd621f5e18b9b7d6fbfac3f0f

SHA512
a9239648b5f15eac4d4151b6e1bdc81065eeaeb101404c2a0126f03bc87f1e6a57206bfa07a44379e9d3bba889e4497a9991ff41fb109099b01512df3dc3cbda

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

Filesize
3.8MB

MD5
8815a1e2b9b85c688447ef7b46f25815

SHA1
794eac3151ce1e4165e60764600b618c417a53df

SHA256
6c77655a217b84a377852e6d9db6a223296cf203434df539cc68b46cc84669ee

SHA512
919099b953bc4c2438f4fdca86401af1ac0bfe19a5bdb00c882f38659fde3c12204b5b1b21528803d1def7959c982b762b7da9a5a8b1bba39273092442d09cb7

Download Submit
memory/328-2-0x0000000000400000-0x00000000007C9000-memory.dmp

Filesize
3.8MB

Download
memory/328-43-0x00000000039B0000-0x0000000003D79000-memory.dmp

Filesize
3.8MB

Download
memory/328-42-0x0000000000400000-0x00000000007C9000-memory.dmp

Filesize
3.8MB

Download
memory/328-62-0x00000000039B0000-0x0000000003D79000-memory.dmp

Filesize
3.8MB

Download
memory/1520-49-0x0000000002DB0000-0x0000000003179000-memory.dmp

Filesize
3.8MB

Download
memory/1520-53-0x0000000000400000-0x00000000007C9000-memory.dmp

Filesize
3.8MB

Download
memory/2808-60-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2808-64-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2808-55-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2808-57-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2808-58-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2808-61-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2808-54-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2808-59-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2808-56-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2808-50-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2808-63-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2808-52-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2808-65-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2808-66-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2808-67-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2808-68-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2808-69-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2808-70-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2808-71-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2808-72-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2808-73-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2808-74-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2808-75-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads