darkcomet | 3d3ddbe28d0b0b39a5c64a9cd062593f056a3c9a608073646dfc5e1dd55a7356

Analysis

max time kernel
149s
max time network
119s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
16-04-2024 12:20

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General

Target

f37c39d23241d810bf574afd63d1475a_JaffaCakes118.exe
Size

661KB
MD5

f37c39d23241d810bf574afd63d1475a
SHA1

f9017197fc5726f345f0d2398d42dfbe5e61339d
SHA256

3d3ddbe28d0b0b39a5c64a9cd062593f056a3c9a608073646dfc5e1dd55a7356
SHA512

acf8047755df03a4924e25cda00a09050ed1227bf57353e924d01912108efa46d5b91b68ef27a80764332c88e1b08c8ff4568a4c25f0aff7b0f0dccfd047054c
SSDEEP

12288:pXhpvNWw276S/DuoeFcfbmiJ99VPhYR5MTSHvLenELrWv1lZw4JuMkwh/:VnAw2WWeFcfbP9VPSPMTSPL/rWvzq4Jd

Score

10^/10

darkcomet guest16 evasion persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

127.0.0.1:1604

Mutex

DC_MUTEX-RQ9D7DQ

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
TdbyFJMD6RSA
install
true
offline_keylogger
true
persistence
true
reg_key
MicroUpdate

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

Processes:

f37c39d23241d810bf574afd63d1475a_JaffaCakes118.exe

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	f37c39d23241d810bf574afd63d1475a_JaffaCakes118.exe

Modifies firewall policy service 2 TTPs 3 IoCs

evasion

Modify Registry

T1112

Windows Service

T1543.003

Processes:

msdcsc.exe

description	ioc	Process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	msdcsc.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0"	msdcsc.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "0"	msdcsc.exe

Sets file to hidden 1 TTPs 2 IoCs

Modifies file attributes to stop it showing in Explorer etc.

evasion

Hidden Files and Directories

T1564.001

Processes:

attrib.exeattrib.exe

pid	Process
2588	attrib.exe
2572	attrib.exe

Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid	Process
2592	msdcsc.exe

Loads dropped DLL 2 IoCs

Processes:

f37c39d23241d810bf574afd63d1475a_JaffaCakes118.exe

pid	Process
2916	f37c39d23241d810bf574afd63d1475a_JaffaCakes118.exe
2916	f37c39d23241d810bf574afd63d1475a_JaffaCakes118.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

f37c39d23241d810bf574afd63d1475a_JaffaCakes118.exemsdcsc.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	f37c39d23241d810bf574afd63d1475a_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	msdcsc.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

msdcsc.exe

pid	Process
2592	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 46 IoCs

Processes:

f37c39d23241d810bf574afd63d1475a_JaffaCakes118.exemsdcsc.exe

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2916	f37c39d23241d810bf574afd63d1475a_JaffaCakes118.exe
Token: SeSecurityPrivilege	2916	f37c39d23241d810bf574afd63d1475a_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	2916	f37c39d23241d810bf574afd63d1475a_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	2916	f37c39d23241d810bf574afd63d1475a_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	2916	f37c39d23241d810bf574afd63d1475a_JaffaCakes118.exe
Token: SeSystemtimePrivilege	2916	f37c39d23241d810bf574afd63d1475a_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	2916	f37c39d23241d810bf574afd63d1475a_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	2916	f37c39d23241d810bf574afd63d1475a_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	2916	f37c39d23241d810bf574afd63d1475a_JaffaCakes118.exe
Token: SeBackupPrivilege	2916	f37c39d23241d810bf574afd63d1475a_JaffaCakes118.exe
Token: SeRestorePrivilege	2916	f37c39d23241d810bf574afd63d1475a_JaffaCakes118.exe
Token: SeShutdownPrivilege	2916	f37c39d23241d810bf574afd63d1475a_JaffaCakes118.exe
Token: SeDebugPrivilege	2916	f37c39d23241d810bf574afd63d1475a_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	2916	f37c39d23241d810bf574afd63d1475a_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	2916	f37c39d23241d810bf574afd63d1475a_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	2916	f37c39d23241d810bf574afd63d1475a_JaffaCakes118.exe
Token: SeUndockPrivilege	2916	f37c39d23241d810bf574afd63d1475a_JaffaCakes118.exe
Token: SeManageVolumePrivilege	2916	f37c39d23241d810bf574afd63d1475a_JaffaCakes118.exe
Token: SeImpersonatePrivilege	2916	f37c39d23241d810bf574afd63d1475a_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	2916	f37c39d23241d810bf574afd63d1475a_JaffaCakes118.exe
Token: 33	2916	f37c39d23241d810bf574afd63d1475a_JaffaCakes118.exe
Token: 34	2916	f37c39d23241d810bf574afd63d1475a_JaffaCakes118.exe
Token: 35	2916	f37c39d23241d810bf574afd63d1475a_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	2592	msdcsc.exe
Token: SeSecurityPrivilege	2592	msdcsc.exe
Token: SeTakeOwnershipPrivilege	2592	msdcsc.exe
Token: SeLoadDriverPrivilege	2592	msdcsc.exe
Token: SeSystemProfilePrivilege	2592	msdcsc.exe
Token: SeSystemtimePrivilege	2592	msdcsc.exe
Token: SeProfSingleProcessPrivilege	2592	msdcsc.exe
Token: SeIncBasePriorityPrivilege	2592	msdcsc.exe
Token: SeCreatePagefilePrivilege	2592	msdcsc.exe
Token: SeBackupPrivilege	2592	msdcsc.exe
Token: SeRestorePrivilege	2592	msdcsc.exe
Token: SeShutdownPrivilege	2592	msdcsc.exe
Token: SeDebugPrivilege	2592	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	2592	msdcsc.exe
Token: SeChangeNotifyPrivilege	2592	msdcsc.exe
Token: SeRemoteShutdownPrivilege	2592	msdcsc.exe
Token: SeUndockPrivilege	2592	msdcsc.exe
Token: SeManageVolumePrivilege	2592	msdcsc.exe
Token: SeImpersonatePrivilege	2592	msdcsc.exe
Token: SeCreateGlobalPrivilege	2592	msdcsc.exe
Token: 33	2592	msdcsc.exe
Token: 34	2592	msdcsc.exe
Token: 35	2592	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

msdcsc.exe

pid	Process
2592	msdcsc.exe

Suspicious use of WriteProcessMemory 43 IoCs

Processes:

f37c39d23241d810bf574afd63d1475a_JaffaCakes118.execmd.execmd.exemsdcsc.exe

description	pid	Process	procid_target
PID 2916 wrote to memory of 2820	2916	f37c39d23241d810bf574afd63d1475a_JaffaCakes118.exe	28
PID 2916 wrote to memory of 2820	2916	f37c39d23241d810bf574afd63d1475a_JaffaCakes118.exe	28
PID 2916 wrote to memory of 2820	2916	f37c39d23241d810bf574afd63d1475a_JaffaCakes118.exe	28
PID 2916 wrote to memory of 2820	2916	f37c39d23241d810bf574afd63d1475a_JaffaCakes118.exe	28
PID 2916 wrote to memory of 2476	2916	f37c39d23241d810bf574afd63d1475a_JaffaCakes118.exe	29
PID 2916 wrote to memory of 2476	2916	f37c39d23241d810bf574afd63d1475a_JaffaCakes118.exe	29
PID 2916 wrote to memory of 2476	2916	f37c39d23241d810bf574afd63d1475a_JaffaCakes118.exe	29
PID 2916 wrote to memory of 2476	2916	f37c39d23241d810bf574afd63d1475a_JaffaCakes118.exe	29
PID 2820 wrote to memory of 2572	2820	cmd.exe	32
PID 2820 wrote to memory of 2572	2820	cmd.exe	32
PID 2820 wrote to memory of 2572	2820	cmd.exe	32
PID 2820 wrote to memory of 2572	2820	cmd.exe	32
PID 2476 wrote to memory of 2588	2476	cmd.exe	33
PID 2476 wrote to memory of 2588	2476	cmd.exe	33
PID 2476 wrote to memory of 2588	2476	cmd.exe	33
PID 2476 wrote to memory of 2588	2476	cmd.exe	33
PID 2916 wrote to memory of 2592	2916	f37c39d23241d810bf574afd63d1475a_JaffaCakes118.exe	34
PID 2916 wrote to memory of 2592	2916	f37c39d23241d810bf574afd63d1475a_JaffaCakes118.exe	34
PID 2916 wrote to memory of 2592	2916	f37c39d23241d810bf574afd63d1475a_JaffaCakes118.exe	34
PID 2916 wrote to memory of 2592	2916	f37c39d23241d810bf574afd63d1475a_JaffaCakes118.exe	34
PID 2592 wrote to memory of 2500	2592	msdcsc.exe	35
PID 2592 wrote to memory of 2500	2592	msdcsc.exe	35
PID 2592 wrote to memory of 2500	2592	msdcsc.exe	35
PID 2592 wrote to memory of 2500	2592	msdcsc.exe	35
PID 2592 wrote to memory of 2500	2592	msdcsc.exe	35
PID 2592 wrote to memory of 2500	2592	msdcsc.exe	35
PID 2592 wrote to memory of 2500	2592	msdcsc.exe	35
PID 2592 wrote to memory of 2500	2592	msdcsc.exe	35
PID 2592 wrote to memory of 2500	2592	msdcsc.exe	35
PID 2592 wrote to memory of 2500	2592	msdcsc.exe	35
PID 2592 wrote to memory of 2500	2592	msdcsc.exe	35
PID 2592 wrote to memory of 2500	2592	msdcsc.exe	35
PID 2592 wrote to memory of 2500	2592	msdcsc.exe	35
PID 2592 wrote to memory of 2500	2592	msdcsc.exe	35
PID 2592 wrote to memory of 2500	2592	msdcsc.exe	35
PID 2592 wrote to memory of 2500	2592	msdcsc.exe	35
PID 2592 wrote to memory of 2500	2592	msdcsc.exe	35
PID 2592 wrote to memory of 2500	2592	msdcsc.exe	35
PID 2592 wrote to memory of 2500	2592	msdcsc.exe	35
PID 2592 wrote to memory of 2500	2592	msdcsc.exe	35
PID 2592 wrote to memory of 2500	2592	msdcsc.exe	35
PID 2592 wrote to memory of 2500	2592	msdcsc.exe	35
PID 2592 wrote to memory of 2500	2592	msdcsc.exe	35

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1564.001

Processes:

attrib.exeattrib.exe

pid	Process
2588	attrib.exe
2572	attrib.exe

C:\Users\Admin\AppData\Local\Temp\f37c39d23241d810bf574afd63d1475a_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f37c39d23241d810bf574afd63d1475a_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2916
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\f37c39d23241d810bf574afd63d1475a_JaffaCakes118.exe" +s +h
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2820
- - C:\Windows\SysWOW64\attrib.exe
    attrib "C:\Users\Admin\AppData\Local\Temp\f37c39d23241d810bf574afd63d1475a_JaffaCakes118.exe" +s +h
    3⤵
    - Sets file to hidden
    - Views/modifies file attributes
    PID:2572
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2476
- - C:\Windows\SysWOW64\attrib.exe
    attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
    3⤵
    - Sets file to hidden
    - Views/modifies file attributes
    PID:2588
- C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
  "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
  2⤵
  - Modifies firewall policy service
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2592
- - C:\Windows\SysWOW64\notepad.exe
    notepad
    3⤵
    PID:2500

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

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\Users\Admin\Documents\MSDCSC\msdcsc.exe

Filesize
661KB

MD5
f37c39d23241d810bf574afd63d1475a

SHA1
f9017197fc5726f345f0d2398d42dfbe5e61339d

SHA256
3d3ddbe28d0b0b39a5c64a9cd062593f056a3c9a608073646dfc5e1dd55a7356

SHA512
acf8047755df03a4924e25cda00a09050ed1227bf57353e924d01912108efa46d5b91b68ef27a80764332c88e1b08c8ff4568a4c25f0aff7b0f0dccfd047054c

Download Submit
memory/2500-42-0x00000000007C0000-0x00000000007C1000-memory.dmp

Filesize
4KB

Download
memory/2500-13-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/2592-43-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2592-12-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

Download
memory/2592-45-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2592-46-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2592-47-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2592-53-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2592-54-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2592-55-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2592-56-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2916-11-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2916-0-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download