darkcomet | 673f8fe4cdbf3bdf71f356f9f2f193984281c4c5df802c277c385ed977c00eae

Analysis

max time kernel
149s
max time network
120s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
28-10-2024 16:37

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General

Target

7a72adbdbadf5788b08cab111e89aadd_JaffaCakes118.exe
Size

800KB
MD5

7a72adbdbadf5788b08cab111e89aadd
SHA1

166022c33f88862b9e446443f27104e69760e99e
SHA256

673f8fe4cdbf3bdf71f356f9f2f193984281c4c5df802c277c385ed977c00eae
SHA512

356d51b058d7e8141f2842b61b78eb3495b287276a59709b85b3fe492b21082e47ab208a8a7a5d6b434e27367b84d41c18e36785a729329a03ab903f8c66d0d8
SSDEEP

24576:hkd2ZPhllLiE0JJ/++2bhQynRGQBbt09F:S2TLiE0zojnRG6t0/

Score

10^/10

darkcomet discovery persistence rat trojan

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:

vbc.exe

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

Executes dropped EXE 1 IoCs

Processes:

CCleaner.exe

pid	Process
2440	CCleaner.exe

Loads dropped DLL 2 IoCs

Processes:

7a72adbdbadf5788b08cab111e89aadd_JaffaCakes118.exe

pid	Process
1300	7a72adbdbadf5788b08cab111e89aadd_JaffaCakes118.exe
1300	7a72adbdbadf5788b08cab111e89aadd_JaffaCakes118.exe

Uses the VBS compiler for execution 1 TTPs

Command and Scripting Interpreter
T1059

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

CCleaner.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\CCleaner.exe = "C:\\Users\\Admin\\AppData\\Roaming\\YWEsNE\\uITCBo\\3.13.36.7162\\CCleaner.exe"	CCleaner.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

CCleaner.exe

description	pid	Process	procid_target
PID 2440 set thread context of 2292	2440	CCleaner.exe	31

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 3 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:

CCleaner.exevbc.exe7a72adbdbadf5788b08cab111e89aadd_JaffaCakes118.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	CCleaner.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vbc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7a72adbdbadf5788b08cab111e89aadd_JaffaCakes118.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:

vbc.exe

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

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

vbc.exe

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	vbc.exe

Suspicious use of AdjustPrivilegeToken 24 IoCs

Processes:

7a72adbdbadf5788b08cab111e89aadd_JaffaCakes118.exevbc.exe

description	pid	Process
Token: SeDebugPrivilege	1300	7a72adbdbadf5788b08cab111e89aadd_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	2292	vbc.exe
Token: SeSecurityPrivilege	2292	vbc.exe
Token: SeTakeOwnershipPrivilege	2292	vbc.exe
Token: SeLoadDriverPrivilege	2292	vbc.exe
Token: SeSystemProfilePrivilege	2292	vbc.exe
Token: SeSystemtimePrivilege	2292	vbc.exe
Token: SeProfSingleProcessPrivilege	2292	vbc.exe
Token: SeIncBasePriorityPrivilege	2292	vbc.exe
Token: SeCreatePagefilePrivilege	2292	vbc.exe
Token: SeBackupPrivilege	2292	vbc.exe
Token: SeRestorePrivilege	2292	vbc.exe
Token: SeShutdownPrivilege	2292	vbc.exe
Token: SeDebugPrivilege	2292	vbc.exe
Token: SeSystemEnvironmentPrivilege	2292	vbc.exe
Token: SeChangeNotifyPrivilege	2292	vbc.exe
Token: SeRemoteShutdownPrivilege	2292	vbc.exe
Token: SeUndockPrivilege	2292	vbc.exe
Token: SeManageVolumePrivilege	2292	vbc.exe
Token: SeImpersonatePrivilege	2292	vbc.exe
Token: SeCreateGlobalPrivilege	2292	vbc.exe
Token: 33	2292	vbc.exe
Token: 34	2292	vbc.exe
Token: 35	2292	vbc.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

7a72adbdbadf5788b08cab111e89aadd_JaffaCakes118.exeCCleaner.exe

description	pid	Process	procid_target
PID 1300 wrote to memory of 2440	1300	7a72adbdbadf5788b08cab111e89aadd_JaffaCakes118.exe	30
PID 1300 wrote to memory of 2440	1300	7a72adbdbadf5788b08cab111e89aadd_JaffaCakes118.exe	30
PID 1300 wrote to memory of 2440	1300	7a72adbdbadf5788b08cab111e89aadd_JaffaCakes118.exe	30
PID 1300 wrote to memory of 2440	1300	7a72adbdbadf5788b08cab111e89aadd_JaffaCakes118.exe	30
PID 2440 wrote to memory of 2292	2440	CCleaner.exe	31
PID 2440 wrote to memory of 2292	2440	CCleaner.exe	31
PID 2440 wrote to memory of 2292	2440	CCleaner.exe	31
PID 2440 wrote to memory of 2292	2440	CCleaner.exe	31
PID 2440 wrote to memory of 2292	2440	CCleaner.exe	31
PID 2440 wrote to memory of 2292	2440	CCleaner.exe	31
PID 2440 wrote to memory of 2292	2440	CCleaner.exe	31
PID 2440 wrote to memory of 2292	2440	CCleaner.exe	31
PID 2440 wrote to memory of 2292	2440	CCleaner.exe	31
PID 2440 wrote to memory of 2292	2440	CCleaner.exe	31
PID 2440 wrote to memory of 2292	2440	CCleaner.exe	31
PID 2440 wrote to memory of 2292	2440	CCleaner.exe	31
PID 2440 wrote to memory of 2292	2440	CCleaner.exe	31

C:\Users\Admin\AppData\Local\Temp\7a72adbdbadf5788b08cab111e89aadd_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\7a72adbdbadf5788b08cab111e89aadd_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1300
- C:\Users\Admin\Documents\CCleaner.exe
  "C:\Users\Admin\Documents\CCleaner.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2440
- - C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
    C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.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
    PID:2292

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

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

\Users\Admin\Documents\CCleaner.exe

Filesize
768KB

MD5
b38fde284e349c691645def1b2cac84b

SHA1
603e8396727d3336c440e271578a82136fd3ee59

SHA256
2f0a35a429ce1e8a78ab9275ae3dba09203d6234da712882e42f4f61bd1514ba

SHA512
805c1acbfdbe5e1eaed8fd2a6e6c9258e411fbd4cb5d7e8c2433fc98c5de542e835887446fe5da535f05b7d7adcd72c55dd8d772c80a5cd14f605d147cbc8367

Download Submit
memory/1300-0-0x0000000074131000-0x0000000074132000-memory.dmp

Filesize
4KB

Download
memory/1300-1-0x0000000074130000-0x00000000746DB000-memory.dmp

Filesize
5.7MB

Download
memory/1300-2-0x0000000074130000-0x00000000746DB000-memory.dmp

Filesize
5.7MB

Download
memory/1300-14-0x0000000074130000-0x00000000746DB000-memory.dmp

Filesize
5.7MB

Download
memory/2292-37-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2292-47-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2292-18-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2292-19-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2292-17-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2292-29-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2292-25-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2292-24-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2292-23-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2292-21-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2292-26-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2292-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2292-34-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2292-36-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2292-38-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2292-56-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2292-30-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2292-55-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2292-54-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2292-53-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2292-43-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2292-42-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2292-44-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2292-45-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2292-46-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2292-52-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2292-48-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2292-49-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2292-50-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2292-51-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2440-15-0x0000000074130000-0x00000000746DB000-memory.dmp

Filesize
5.7MB

Download
memory/2440-41-0x0000000074130000-0x00000000746DB000-memory.dmp

Filesize
5.7MB

Download
memory/2440-39-0x0000000074130000-0x00000000746DB000-memory.dmp

Filesize
5.7MB

Download
memory/2440-40-0x0000000074130000-0x00000000746DB000-memory.dmp

Filesize
5.7MB

Download
memory/2440-16-0x0000000074130000-0x00000000746DB000-memory.dmp

Filesize
5.7MB

Download