darkcomet | 93bc21283109795660a3f52a581545ade950c1603359b0789b68569b47555101

Analysis

max time kernel
150s
max time network
19s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
29/08/2024, 08:03

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General

Target

c87408fbca8faf53343ee6d1923470e7_JaffaCakes118.exe
Size

946KB
MD5

c87408fbca8faf53343ee6d1923470e7
SHA1

ba690e60dfb5573958f12568488d2395d4639470
SHA256

93bc21283109795660a3f52a581545ade950c1603359b0789b68569b47555101
SHA512

d0de5cd0aec7902d7bf7edb547061410f368fbc71f9985aa1859eb5faecac4cb47d3f01cf4640e2ffb87111fffb51d131fdaa3fd8dcaab10ece6746b0a861a37
SSDEEP

24576:PHrKsId7eo9v+E9rrZ6LJfcmKxWljvjU:PWnVMqrrZIJkxW

Score

10^/10

darkcomet ids discovery evasion persistence rat themida trojan

Malware Config

Extracted

Family

darkcomet

Botnet

IDS

xhacker.zapto.org:1604

Mutex

DC_MUTEX-F54S21D

Attributes

InstallPath
Microsoft\Update.exe
gencode
7J1PAWcfBjny
install
true
offline_keylogger
true
persistence
false
reg_key
Msn Messanger

Signatures

Darkcomet
DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.
trojan rat darkcomet

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Update.exe"	c87408fbca8faf53343ee6d1923470e7_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

pid	Process
2780	Update.exe

Identifies Wine through registry keys 2 TTPs 2 IoCs

Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2257386474-3982792636-3902186748-1000\Software\Wine	c87408fbca8faf53343ee6d1923470e7_JaffaCakes118.exe
Key opened	\REGISTRY\USER\S-1-5-21-2257386474-3982792636-3902186748-1000\Software\Wine	Update.exe

Loads dropped DLL 4 IoCs

pid	Process
2716	c87408fbca8faf53343ee6d1923470e7_JaffaCakes118.exe
2780	Update.exe
2780	Update.exe
2780	Update.exe

Themida packer 21 IoCs

Detects Themida, an advanced Windows software protection system.

themida

resource	yara_rule
behavioral1/memory/2716-0-0x0000000000400000-0x000000000061A000-memory.dmp	themida
behavioral1/memory/2716-5-0x0000000000400000-0x000000000061A000-memory.dmp	themida
behavioral1/memory/2716-2-0x0000000000400000-0x000000000061A000-memory.dmp	themida
behavioral1/memory/2716-6-0x0000000000400000-0x000000000061A000-memory.dmp	themida
behavioral1/files/0x00070000000120fe-10.dat	themida
behavioral1/memory/2780-15-0x0000000000400000-0x000000000061A000-memory.dmp	themida
behavioral1/memory/2780-21-0x0000000000400000-0x000000000061A000-memory.dmp	themida
behavioral1/memory/2780-24-0x0000000000400000-0x000000000061A000-memory.dmp	themida
behavioral1/memory/2780-25-0x0000000000400000-0x000000000061A000-memory.dmp	themida
behavioral1/memory/2780-26-0x0000000000400000-0x000000000061A000-memory.dmp	themida
behavioral1/memory/2780-27-0x0000000000400000-0x000000000061A000-memory.dmp	themida
behavioral1/memory/2780-28-0x0000000000400000-0x000000000061A000-memory.dmp	themida
behavioral1/memory/2780-29-0x0000000000400000-0x000000000061A000-memory.dmp	themida
behavioral1/memory/2780-30-0x0000000000400000-0x000000000061A000-memory.dmp	themida
behavioral1/memory/2780-31-0x0000000000400000-0x000000000061A000-memory.dmp	themida
behavioral1/memory/2780-32-0x0000000000400000-0x000000000061A000-memory.dmp	themida
behavioral1/memory/2780-33-0x0000000000400000-0x000000000061A000-memory.dmp	themida
behavioral1/memory/2780-34-0x0000000000400000-0x000000000061A000-memory.dmp	themida
behavioral1/memory/2780-35-0x0000000000400000-0x000000000061A000-memory.dmp	themida
behavioral1/memory/2780-36-0x0000000000400000-0x000000000061A000-memory.dmp	themida
behavioral1/memory/2780-37-0x0000000000400000-0x000000000061A000-memory.dmp	themida

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-1-5-21-2257386474-3982792636-3902186748-1000\Software\Microsoft\Windows\CurrentVersion\Run\Msn Messanger = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Update.exe"	c87408fbca8faf53343ee6d1923470e7_JaffaCakes118.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
2716	c87408fbca8faf53343ee6d1923470e7_JaffaCakes118.exe
2780	Update.exe

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c87408fbca8faf53343ee6d1923470e7_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Update.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2716	c87408fbca8faf53343ee6d1923470e7_JaffaCakes118.exe
2780	Update.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2780	Update.exe

Suspicious use of AdjustPrivilegeToken 46 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2716	c87408fbca8faf53343ee6d1923470e7_JaffaCakes118.exe
Token: SeSecurityPrivilege	2716	c87408fbca8faf53343ee6d1923470e7_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	2716	c87408fbca8faf53343ee6d1923470e7_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	2716	c87408fbca8faf53343ee6d1923470e7_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	2716	c87408fbca8faf53343ee6d1923470e7_JaffaCakes118.exe
Token: SeSystemtimePrivilege	2716	c87408fbca8faf53343ee6d1923470e7_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	2716	c87408fbca8faf53343ee6d1923470e7_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	2716	c87408fbca8faf53343ee6d1923470e7_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	2716	c87408fbca8faf53343ee6d1923470e7_JaffaCakes118.exe
Token: SeBackupPrivilege	2716	c87408fbca8faf53343ee6d1923470e7_JaffaCakes118.exe
Token: SeRestorePrivilege	2716	c87408fbca8faf53343ee6d1923470e7_JaffaCakes118.exe
Token: SeShutdownPrivilege	2716	c87408fbca8faf53343ee6d1923470e7_JaffaCakes118.exe
Token: SeDebugPrivilege	2716	c87408fbca8faf53343ee6d1923470e7_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	2716	c87408fbca8faf53343ee6d1923470e7_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	2716	c87408fbca8faf53343ee6d1923470e7_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	2716	c87408fbca8faf53343ee6d1923470e7_JaffaCakes118.exe
Token: SeUndockPrivilege	2716	c87408fbca8faf53343ee6d1923470e7_JaffaCakes118.exe
Token: SeManageVolumePrivilege	2716	c87408fbca8faf53343ee6d1923470e7_JaffaCakes118.exe
Token: SeImpersonatePrivilege	2716	c87408fbca8faf53343ee6d1923470e7_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	2716	c87408fbca8faf53343ee6d1923470e7_JaffaCakes118.exe
Token: 33	2716	c87408fbca8faf53343ee6d1923470e7_JaffaCakes118.exe
Token: 34	2716	c87408fbca8faf53343ee6d1923470e7_JaffaCakes118.exe
Token: 35	2716	c87408fbca8faf53343ee6d1923470e7_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	2780	Update.exe
Token: SeSecurityPrivilege	2780	Update.exe
Token: SeTakeOwnershipPrivilege	2780	Update.exe
Token: SeLoadDriverPrivilege	2780	Update.exe
Token: SeSystemProfilePrivilege	2780	Update.exe
Token: SeSystemtimePrivilege	2780	Update.exe
Token: SeProfSingleProcessPrivilege	2780	Update.exe
Token: SeIncBasePriorityPrivilege	2780	Update.exe
Token: SeCreatePagefilePrivilege	2780	Update.exe
Token: SeBackupPrivilege	2780	Update.exe
Token: SeRestorePrivilege	2780	Update.exe
Token: SeShutdownPrivilege	2780	Update.exe
Token: SeDebugPrivilege	2780	Update.exe
Token: SeSystemEnvironmentPrivilege	2780	Update.exe
Token: SeChangeNotifyPrivilege	2780	Update.exe
Token: SeRemoteShutdownPrivilege	2780	Update.exe
Token: SeUndockPrivilege	2780	Update.exe
Token: SeManageVolumePrivilege	2780	Update.exe
Token: SeImpersonatePrivilege	2780	Update.exe
Token: SeCreateGlobalPrivilege	2780	Update.exe
Token: 33	2780	Update.exe
Token: 34	2780	Update.exe
Token: 35	2780	Update.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2780	Update.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2716 wrote to memory of 2780	2716	c87408fbca8faf53343ee6d1923470e7_JaffaCakes118.exe	30
PID 2716 wrote to memory of 2780	2716	c87408fbca8faf53343ee6d1923470e7_JaffaCakes118.exe	30
PID 2716 wrote to memory of 2780	2716	c87408fbca8faf53343ee6d1923470e7_JaffaCakes118.exe	30
PID 2716 wrote to memory of 2780	2716	c87408fbca8faf53343ee6d1923470e7_JaffaCakes118.exe	30
PID 2716 wrote to memory of 2780	2716	c87408fbca8faf53343ee6d1923470e7_JaffaCakes118.exe	30
PID 2716 wrote to memory of 2780	2716	c87408fbca8faf53343ee6d1923470e7_JaffaCakes118.exe	30
PID 2716 wrote to memory of 2780	2716	c87408fbca8faf53343ee6d1923470e7_JaffaCakes118.exe	30

C:\Users\Admin\AppData\Local\Temp\c87408fbca8faf53343ee6d1923470e7_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\c87408fbca8faf53343ee6d1923470e7_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- Identifies Wine through registry keys
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2716
- C:\Users\Admin\AppData\Roaming\Microsoft\Update.exe
  "C:\Users\Admin\AppData\Roaming\Microsoft\Update.exe"
  2⤵
  - Executes dropped EXE
  - Identifies Wine through registry keys
  - Loads dropped DLL
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:2780

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

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Defense Evasion

Modify Registry

T1112

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Update.exe

Filesize
946KB

MD5
c87408fbca8faf53343ee6d1923470e7

SHA1
ba690e60dfb5573958f12568488d2395d4639470

SHA256
93bc21283109795660a3f52a581545ade950c1603359b0789b68569b47555101

SHA512
d0de5cd0aec7902d7bf7edb547061410f368fbc71f9985aa1859eb5faecac4cb47d3f01cf4640e2ffb87111fffb51d131fdaa3fd8dcaab10ece6746b0a861a37

Download Submit
memory/2716-13-0x0000000006C90000-0x0000000006EAA000-memory.dmp

Filesize
2.1MB

Download
memory/2716-1-0x0000000000401000-0x0000000000450000-memory.dmp

Filesize
316KB

Download
memory/2716-5-0x0000000000400000-0x000000000061A000-memory.dmp

Filesize
2.1MB

Download
memory/2716-2-0x0000000000400000-0x000000000061A000-memory.dmp

Filesize
2.1MB

Download
memory/2716-6-0x0000000000400000-0x000000000061A000-memory.dmp

Filesize
2.1MB

Download
memory/2716-0-0x0000000000400000-0x000000000061A000-memory.dmp

Filesize
2.1MB

Download
memory/2780-23-0x0000000000DA0000-0x0000000000FBA000-memory.dmp

Filesize
2.1MB

Download
memory/2780-27-0x0000000000400000-0x000000000061A000-memory.dmp

Filesize
2.1MB

Download
memory/2780-19-0x0000000000DA0000-0x0000000000FBA000-memory.dmp

Filesize
2.1MB

Download
memory/2780-21-0x0000000000400000-0x000000000061A000-memory.dmp

Filesize
2.1MB

Download
memory/2780-22-0x0000000000DA0000-0x0000000000FBA000-memory.dmp

Filesize
2.1MB

Download
memory/2780-20-0x0000000000DA0000-0x0000000000FBA000-memory.dmp

Filesize
2.1MB

Download
memory/2780-24-0x0000000000400000-0x000000000061A000-memory.dmp

Filesize
2.1MB

Download
memory/2780-25-0x0000000000400000-0x000000000061A000-memory.dmp

Filesize
2.1MB

Download
memory/2780-26-0x0000000000400000-0x000000000061A000-memory.dmp

Filesize
2.1MB

Download
memory/2780-15-0x0000000000400000-0x000000000061A000-memory.dmp

Filesize
2.1MB

Download
memory/2780-28-0x0000000000400000-0x000000000061A000-memory.dmp

Filesize
2.1MB

Download
memory/2780-29-0x0000000000400000-0x000000000061A000-memory.dmp

Filesize
2.1MB

Download
memory/2780-30-0x0000000000400000-0x000000000061A000-memory.dmp

Filesize
2.1MB

Download
memory/2780-31-0x0000000000400000-0x000000000061A000-memory.dmp

Filesize
2.1MB

Download
memory/2780-32-0x0000000000400000-0x000000000061A000-memory.dmp

Filesize
2.1MB

Download
memory/2780-33-0x0000000000400000-0x000000000061A000-memory.dmp

Filesize
2.1MB

Download
memory/2780-34-0x0000000000400000-0x000000000061A000-memory.dmp

Filesize
2.1MB

Download
memory/2780-35-0x0000000000400000-0x000000000061A000-memory.dmp

Filesize
2.1MB

Download
memory/2780-36-0x0000000000400000-0x000000000061A000-memory.dmp

Filesize
2.1MB

Download
memory/2780-37-0x0000000000400000-0x000000000061A000-memory.dmp

Filesize
2.1MB

Download