darkcomet | 1ca8c6ba04c023def63561ffbccd715066c13b15cdb9d7fce7ce6ac016c57ce0

Analysis

max time kernel
150s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
28-10-2024 13:06

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General

Target

79c5a1ce288b7d4f1d447a71379ffdab_JaffaCakes118.exe
Size

360KB
MD5

79c5a1ce288b7d4f1d447a71379ffdab
SHA1

08976e4bbfdec9f56786ec0c595e28620c2b6535
SHA256

1ca8c6ba04c023def63561ffbccd715066c13b15cdb9d7fce7ce6ac016c57ce0
SHA512

4b6b40a4e6f81e92db2c234350492ead9f077b937f74031f148301e27a5b9130c95e1b891066d4320d105ba6a1e030f4b475cb6a3057d1ef03c8c3b12d1a9254
SSDEEP

6144:uqrJt/vTpwbGgq7Sherr7nVHQr41qEkaAB1Gsv5pe5t+R3IIhIIW:uEJtT2ag1errrV6CHkdnFIIhII

Score

10^/10

darkcomet discovery 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 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

tmpD6E7.tmp.exeexplorer.exe

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	tmpD6E7.tmp.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	explorer.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

79c5a1ce288b7d4f1d447a71379ffdab_JaffaCakes118.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	79c5a1ce288b7d4f1d447a71379ffdab_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

Processes:

tmpD6E7.tmp.exe

pid	Process
2400	tmpD6E7.tmp.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

tmpD6E7.tmp.exe

description	pid	Process	procid_target
PID 2400 set thread context of 4776	2400	tmpD6E7.tmp.exe	88

UPX packed file 12 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/files/0x0007000000023cae-8.dat	upx
behavioral2/memory/2400-12-0x0000000013140000-0x00000000131FB000-memory.dmp	upx
behavioral2/memory/4776-16-0x0000000013140000-0x00000000131FB000-memory.dmp	upx
behavioral2/memory/4776-20-0x0000000013140000-0x00000000131FB000-memory.dmp	upx
behavioral2/memory/2400-22-0x0000000013140000-0x00000000131FB000-memory.dmp	upx
behavioral2/memory/4776-24-0x0000000013140000-0x00000000131FB000-memory.dmp	upx
behavioral2/memory/4776-25-0x0000000013140000-0x00000000131FB000-memory.dmp	upx
behavioral2/memory/4776-23-0x0000000013140000-0x00000000131FB000-memory.dmp	upx
behavioral2/memory/4776-19-0x0000000013140000-0x00000000131FB000-memory.dmp	upx
behavioral2/memory/4776-18-0x0000000013140000-0x00000000131FB000-memory.dmp	upx
behavioral2/memory/4776-17-0x0000000013140000-0x00000000131FB000-memory.dmp	upx
behavioral2/memory/4776-26-0x0000000013140000-0x00000000131FB000-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 2 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:

tmpD6E7.tmp.exeexplorer.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tmpD6E7.tmp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer.exe

Checks processor information in registry 2 TTPs 8 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

tmpD6E7.tmp.exeexplorer.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	tmpD6E7.tmp.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	tmpD6E7.tmp.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	tmpD6E7.tmp.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	tmpD6E7.tmp.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	explorer.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	explorer.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	explorer.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	explorer.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

tmpD6E7.tmp.exeexplorer.exe

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	tmpD6E7.tmp.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	explorer.exe

Suspicious use of AdjustPrivilegeToken 49 IoCs

Processes:

79c5a1ce288b7d4f1d447a71379ffdab_JaffaCakes118.exetmpD6E7.tmp.exeexplorer.exe

description	pid	Process
Token: SeDebugPrivilege	1056	79c5a1ce288b7d4f1d447a71379ffdab_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	2400	tmpD6E7.tmp.exe
Token: SeSecurityPrivilege	2400	tmpD6E7.tmp.exe
Token: SeTakeOwnershipPrivilege	2400	tmpD6E7.tmp.exe
Token: SeLoadDriverPrivilege	2400	tmpD6E7.tmp.exe
Token: SeSystemProfilePrivilege	2400	tmpD6E7.tmp.exe
Token: SeSystemtimePrivilege	2400	tmpD6E7.tmp.exe
Token: SeProfSingleProcessPrivilege	2400	tmpD6E7.tmp.exe
Token: SeIncBasePriorityPrivilege	2400	tmpD6E7.tmp.exe
Token: SeCreatePagefilePrivilege	2400	tmpD6E7.tmp.exe
Token: SeBackupPrivilege	2400	tmpD6E7.tmp.exe
Token: SeRestorePrivilege	2400	tmpD6E7.tmp.exe
Token: SeShutdownPrivilege	2400	tmpD6E7.tmp.exe
Token: SeDebugPrivilege	2400	tmpD6E7.tmp.exe
Token: SeSystemEnvironmentPrivilege	2400	tmpD6E7.tmp.exe
Token: SeChangeNotifyPrivilege	2400	tmpD6E7.tmp.exe
Token: SeRemoteShutdownPrivilege	2400	tmpD6E7.tmp.exe
Token: SeUndockPrivilege	2400	tmpD6E7.tmp.exe
Token: SeManageVolumePrivilege	2400	tmpD6E7.tmp.exe
Token: SeImpersonatePrivilege	2400	tmpD6E7.tmp.exe
Token: SeCreateGlobalPrivilege	2400	tmpD6E7.tmp.exe
Token: 33	2400	tmpD6E7.tmp.exe
Token: 34	2400	tmpD6E7.tmp.exe
Token: 35	2400	tmpD6E7.tmp.exe
Token: 36	2400	tmpD6E7.tmp.exe
Token: SeIncreaseQuotaPrivilege	4776	explorer.exe
Token: SeSecurityPrivilege	4776	explorer.exe
Token: SeTakeOwnershipPrivilege	4776	explorer.exe
Token: SeLoadDriverPrivilege	4776	explorer.exe
Token: SeSystemProfilePrivilege	4776	explorer.exe
Token: SeSystemtimePrivilege	4776	explorer.exe
Token: SeProfSingleProcessPrivilege	4776	explorer.exe
Token: SeIncBasePriorityPrivilege	4776	explorer.exe
Token: SeCreatePagefilePrivilege	4776	explorer.exe
Token: SeBackupPrivilege	4776	explorer.exe
Token: SeRestorePrivilege	4776	explorer.exe
Token: SeShutdownPrivilege	4776	explorer.exe
Token: SeDebugPrivilege	4776	explorer.exe
Token: SeSystemEnvironmentPrivilege	4776	explorer.exe
Token: SeChangeNotifyPrivilege	4776	explorer.exe
Token: SeRemoteShutdownPrivilege	4776	explorer.exe
Token: SeUndockPrivilege	4776	explorer.exe
Token: SeManageVolumePrivilege	4776	explorer.exe
Token: SeImpersonatePrivilege	4776	explorer.exe
Token: SeCreateGlobalPrivilege	4776	explorer.exe
Token: 33	4776	explorer.exe
Token: 34	4776	explorer.exe
Token: 35	4776	explorer.exe
Token: 36	4776	explorer.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

explorer.exe

pid	Process
4776	explorer.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

79c5a1ce288b7d4f1d447a71379ffdab_JaffaCakes118.exetmpD6E7.tmp.exe

description	pid	Process	procid_target
PID 1056 wrote to memory of 2400	1056	79c5a1ce288b7d4f1d447a71379ffdab_JaffaCakes118.exe	86
PID 1056 wrote to memory of 2400	1056	79c5a1ce288b7d4f1d447a71379ffdab_JaffaCakes118.exe	86
PID 1056 wrote to memory of 2400	1056	79c5a1ce288b7d4f1d447a71379ffdab_JaffaCakes118.exe	86
PID 2400 wrote to memory of 4776	2400	tmpD6E7.tmp.exe	88
PID 2400 wrote to memory of 4776	2400	tmpD6E7.tmp.exe	88
PID 2400 wrote to memory of 4776	2400	tmpD6E7.tmp.exe	88
PID 2400 wrote to memory of 4776	2400	tmpD6E7.tmp.exe	88
PID 2400 wrote to memory of 4776	2400	tmpD6E7.tmp.exe	88

C:\Users\Admin\AppData\Local\Temp\79c5a1ce288b7d4f1d447a71379ffdab_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\79c5a1ce288b7d4f1d447a71379ffdab_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1056
- C:\Users\Admin\AppData\Local\Temp\tmpD6E7.tmp.exe
  "C:\Users\Admin\AppData\Local\Temp\tmpD6E7.tmp.exe"
  2⤵
  - Checks BIOS information in registry
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Enumerates system info in registry
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2400
- - C:\Windows\SysWOW64\explorer.exe
    "C:\Windows\SysWOW64\explorer.exe"
    3⤵
    - Checks BIOS information in registry
    - 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:4776

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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\tmpD6E7.tmp.exe

Filesize
241KB

MD5
ee8da8c3c6aa0edfadd9c89ea98256de

SHA1
a7dec71ac25def139d7119354915bafae0fd2e9d

SHA256
cb72b4ebc433e467b777dd2407cb008715d3db5dee76b4524f5adca8e1fcc8b9

SHA512
2e6732a12f2e32f8eb75b5062d4186235fff5e36756d8d7e31182f0ebd3fc01e75b87cec86917336ec557d16416c9ea9d0957411b32fd0e5514a67dc1fe71f01

Download Submit
memory/1056-1-0x000000001B3B0000-0x000000001B456000-memory.dmp

Filesize
664KB

Download
memory/1056-2-0x00007FFDF7570000-0x00007FFDF7F11000-memory.dmp

Filesize
9.6MB

Download
memory/1056-4-0x00007FFDF7570000-0x00007FFDF7F11000-memory.dmp

Filesize
9.6MB

Download
memory/1056-14-0x00007FFDF7570000-0x00007FFDF7F11000-memory.dmp

Filesize
9.6MB

Download
memory/1056-0-0x00007FFDF7825000-0x00007FFDF7826000-memory.dmp

Filesize
4KB

Download
memory/2400-22-0x0000000013140000-0x00000000131FB000-memory.dmp

Filesize
748KB

Download
memory/2400-12-0x0000000013140000-0x00000000131FB000-memory.dmp

Filesize
748KB

Download
memory/2400-15-0x0000000000A50000-0x0000000000A51000-memory.dmp

Filesize
4KB

Download
memory/4776-16-0x0000000013140000-0x00000000131FB000-memory.dmp

Filesize
748KB

Download
memory/4776-20-0x0000000013140000-0x00000000131FB000-memory.dmp

Filesize
748KB

Download
memory/4776-24-0x0000000013140000-0x00000000131FB000-memory.dmp

Filesize
748KB

Download
memory/4776-25-0x0000000013140000-0x00000000131FB000-memory.dmp

Filesize
748KB

Download
memory/4776-23-0x0000000013140000-0x00000000131FB000-memory.dmp

Filesize
748KB

Download
memory/4776-19-0x0000000013140000-0x00000000131FB000-memory.dmp

Filesize
748KB

Download
memory/4776-18-0x0000000013140000-0x00000000131FB000-memory.dmp

Filesize
748KB

Download
memory/4776-17-0x0000000013140000-0x00000000131FB000-memory.dmp

Filesize
748KB

Download
memory/4776-26-0x0000000013140000-0x00000000131FB000-memory.dmp

Filesize
748KB

Download