darkcomet | dd323f7ecfce0618a782015375fff2d10d511655518f101bc8ba8528f9687dac

Analysis

max time kernel
150s
max time network
119s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
29-11-2024 02:45

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General

Target

ae62559ace1e626c509f136bd9364d1e_JaffaCakes118.exe
Size

1.3MB
MD5

ae62559ace1e626c509f136bd9364d1e
SHA1

d299f96ffa39f55b3edf1c5c5202cfc2e578302a
SHA256

dd323f7ecfce0618a782015375fff2d10d511655518f101bc8ba8528f9687dac
SHA512

ab8fb900632efce279a38c311f67ca073548c20009c7ae19f783351253696b3d92d8a693c05bf949ea1a05be9dad64243601aafa04fc37ce396d58bb1cecf05c
SSDEEP

24576:aRmJkcoQricOIQxiZY1iadYGQNj4q6ZfF4yJHVrVyLkMPDJgd/MOq/:/JZoQrbTFZY1iadYGQxL6FFH3w9e/y/

Score

10^/10

darkcomet carbonsvall discovery evasion persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Carbonsvall

dast1nga.no-ip.org:1604

Mutex

DC_MUTEX-ZL1HGS9

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
zBCl3y7sQFxJ
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
Darkcomet family
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\\Documents\\MSDCSC\\msdcsc.exe"	ae62559ace1e626c509f136bd9364d1e_JaffaCakes118.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

pid	Process
2756	attrib.exe
2292	attrib.exe

Executes dropped EXE 2 IoCs

pid	Process
2664	msdcsc.exe
2608	msdcsc.exe

Loads dropped DLL 2 IoCs

pid	Process
2940	ae62559ace1e626c509f136bd9364d1e_JaffaCakes118.exe
2664	msdcsc.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	ae62559ace1e626c509f136bd9364d1e_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	msdcsc.exe

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral1/files/0x00080000000173aa-20.dat	autoit_exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2272 set thread context of 2940	2272	ae62559ace1e626c509f136bd9364d1e_JaffaCakes118.exe	30
PID 2664 set thread context of 2608	2664	msdcsc.exe	38

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 9 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	ae62559ace1e626c509f136bd9364d1e_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ae62559ace1e626c509f136bd9364d1e_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2608	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 46 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2940	ae62559ace1e626c509f136bd9364d1e_JaffaCakes118.exe
Token: SeSecurityPrivilege	2940	ae62559ace1e626c509f136bd9364d1e_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	2940	ae62559ace1e626c509f136bd9364d1e_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	2940	ae62559ace1e626c509f136bd9364d1e_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	2940	ae62559ace1e626c509f136bd9364d1e_JaffaCakes118.exe
Token: SeSystemtimePrivilege	2940	ae62559ace1e626c509f136bd9364d1e_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	2940	ae62559ace1e626c509f136bd9364d1e_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	2940	ae62559ace1e626c509f136bd9364d1e_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	2940	ae62559ace1e626c509f136bd9364d1e_JaffaCakes118.exe
Token: SeBackupPrivilege	2940	ae62559ace1e626c509f136bd9364d1e_JaffaCakes118.exe
Token: SeRestorePrivilege	2940	ae62559ace1e626c509f136bd9364d1e_JaffaCakes118.exe
Token: SeShutdownPrivilege	2940	ae62559ace1e626c509f136bd9364d1e_JaffaCakes118.exe
Token: SeDebugPrivilege	2940	ae62559ace1e626c509f136bd9364d1e_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	2940	ae62559ace1e626c509f136bd9364d1e_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	2940	ae62559ace1e626c509f136bd9364d1e_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	2940	ae62559ace1e626c509f136bd9364d1e_JaffaCakes118.exe
Token: SeUndockPrivilege	2940	ae62559ace1e626c509f136bd9364d1e_JaffaCakes118.exe
Token: SeManageVolumePrivilege	2940	ae62559ace1e626c509f136bd9364d1e_JaffaCakes118.exe
Token: SeImpersonatePrivilege	2940	ae62559ace1e626c509f136bd9364d1e_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	2940	ae62559ace1e626c509f136bd9364d1e_JaffaCakes118.exe
Token: 33	2940	ae62559ace1e626c509f136bd9364d1e_JaffaCakes118.exe
Token: 34	2940	ae62559ace1e626c509f136bd9364d1e_JaffaCakes118.exe
Token: 35	2940	ae62559ace1e626c509f136bd9364d1e_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	2608	msdcsc.exe
Token: SeSecurityPrivilege	2608	msdcsc.exe
Token: SeTakeOwnershipPrivilege	2608	msdcsc.exe
Token: SeLoadDriverPrivilege	2608	msdcsc.exe
Token: SeSystemProfilePrivilege	2608	msdcsc.exe
Token: SeSystemtimePrivilege	2608	msdcsc.exe
Token: SeProfSingleProcessPrivilege	2608	msdcsc.exe
Token: SeIncBasePriorityPrivilege	2608	msdcsc.exe
Token: SeCreatePagefilePrivilege	2608	msdcsc.exe
Token: SeBackupPrivilege	2608	msdcsc.exe
Token: SeRestorePrivilege	2608	msdcsc.exe
Token: SeShutdownPrivilege	2608	msdcsc.exe
Token: SeDebugPrivilege	2608	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	2608	msdcsc.exe
Token: SeChangeNotifyPrivilege	2608	msdcsc.exe
Token: SeRemoteShutdownPrivilege	2608	msdcsc.exe
Token: SeUndockPrivilege	2608	msdcsc.exe
Token: SeManageVolumePrivilege	2608	msdcsc.exe
Token: SeImpersonatePrivilege	2608	msdcsc.exe
Token: SeCreateGlobalPrivilege	2608	msdcsc.exe
Token: 33	2608	msdcsc.exe
Token: 34	2608	msdcsc.exe
Token: 35	2608	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2608	msdcsc.exe

Suspicious use of WriteProcessMemory 55 IoCs

description	pid	Process	procid_target
PID 2272 wrote to memory of 2940	2272	ae62559ace1e626c509f136bd9364d1e_JaffaCakes118.exe	30
PID 2272 wrote to memory of 2940	2272	ae62559ace1e626c509f136bd9364d1e_JaffaCakes118.exe	30
PID 2272 wrote to memory of 2940	2272	ae62559ace1e626c509f136bd9364d1e_JaffaCakes118.exe	30
PID 2272 wrote to memory of 2940	2272	ae62559ace1e626c509f136bd9364d1e_JaffaCakes118.exe	30
PID 2272 wrote to memory of 2940	2272	ae62559ace1e626c509f136bd9364d1e_JaffaCakes118.exe	30
PID 2272 wrote to memory of 2940	2272	ae62559ace1e626c509f136bd9364d1e_JaffaCakes118.exe	30
PID 2940 wrote to memory of 2008	2940	ae62559ace1e626c509f136bd9364d1e_JaffaCakes118.exe	31
PID 2940 wrote to memory of 2008	2940	ae62559ace1e626c509f136bd9364d1e_JaffaCakes118.exe	31
PID 2940 wrote to memory of 2008	2940	ae62559ace1e626c509f136bd9364d1e_JaffaCakes118.exe	31
PID 2940 wrote to memory of 2008	2940	ae62559ace1e626c509f136bd9364d1e_JaffaCakes118.exe	31
PID 2940 wrote to memory of 2020	2940	ae62559ace1e626c509f136bd9364d1e_JaffaCakes118.exe	32
PID 2940 wrote to memory of 2020	2940	ae62559ace1e626c509f136bd9364d1e_JaffaCakes118.exe	32
PID 2940 wrote to memory of 2020	2940	ae62559ace1e626c509f136bd9364d1e_JaffaCakes118.exe	32
PID 2940 wrote to memory of 2020	2940	ae62559ace1e626c509f136bd9364d1e_JaffaCakes118.exe	32
PID 2020 wrote to memory of 2292	2020	cmd.exe	35
PID 2020 wrote to memory of 2292	2020	cmd.exe	35
PID 2020 wrote to memory of 2292	2020	cmd.exe	35
PID 2020 wrote to memory of 2292	2020	cmd.exe	35
PID 2008 wrote to memory of 2756	2008	cmd.exe	36
PID 2008 wrote to memory of 2756	2008	cmd.exe	36
PID 2008 wrote to memory of 2756	2008	cmd.exe	36
PID 2008 wrote to memory of 2756	2008	cmd.exe	36
PID 2940 wrote to memory of 2664	2940	ae62559ace1e626c509f136bd9364d1e_JaffaCakes118.exe	37
PID 2940 wrote to memory of 2664	2940	ae62559ace1e626c509f136bd9364d1e_JaffaCakes118.exe	37
PID 2940 wrote to memory of 2664	2940	ae62559ace1e626c509f136bd9364d1e_JaffaCakes118.exe	37
PID 2940 wrote to memory of 2664	2940	ae62559ace1e626c509f136bd9364d1e_JaffaCakes118.exe	37
PID 2664 wrote to memory of 2608	2664	msdcsc.exe	38
PID 2664 wrote to memory of 2608	2664	msdcsc.exe	38
PID 2664 wrote to memory of 2608	2664	msdcsc.exe	38
PID 2664 wrote to memory of 2608	2664	msdcsc.exe	38
PID 2664 wrote to memory of 2608	2664	msdcsc.exe	38
PID 2664 wrote to memory of 2608	2664	msdcsc.exe	38
PID 2608 wrote to memory of 2288	2608	msdcsc.exe	39
PID 2608 wrote to memory of 2288	2608	msdcsc.exe	39
PID 2608 wrote to memory of 2288	2608	msdcsc.exe	39
PID 2608 wrote to memory of 2288	2608	msdcsc.exe	39
PID 2608 wrote to memory of 2288	2608	msdcsc.exe	39
PID 2608 wrote to memory of 2288	2608	msdcsc.exe	39
PID 2608 wrote to memory of 2288	2608	msdcsc.exe	39
PID 2608 wrote to memory of 2288	2608	msdcsc.exe	39
PID 2608 wrote to memory of 2288	2608	msdcsc.exe	39
PID 2608 wrote to memory of 2288	2608	msdcsc.exe	39
PID 2608 wrote to memory of 2288	2608	msdcsc.exe	39
PID 2608 wrote to memory of 2288	2608	msdcsc.exe	39
PID 2608 wrote to memory of 2288	2608	msdcsc.exe	39
PID 2608 wrote to memory of 2288	2608	msdcsc.exe	39
PID 2608 wrote to memory of 2288	2608	msdcsc.exe	39
PID 2608 wrote to memory of 2288	2608	msdcsc.exe	39
PID 2608 wrote to memory of 2288	2608	msdcsc.exe	39
PID 2608 wrote to memory of 2288	2608	msdcsc.exe	39
PID 2608 wrote to memory of 2288	2608	msdcsc.exe	39
PID 2608 wrote to memory of 2288	2608	msdcsc.exe	39
PID 2608 wrote to memory of 2288	2608	msdcsc.exe	39
PID 2608 wrote to memory of 2288	2608	msdcsc.exe	39
PID 2608 wrote to memory of 2288	2608	msdcsc.exe	39

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
2756	attrib.exe
2292	attrib.exe

C:\Users\Admin\AppData\Local\Temp\ae62559ace1e626c509f136bd9364d1e_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ae62559ace1e626c509f136bd9364d1e_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2272
- C:\Users\Admin\AppData\Local\Temp\ae62559ace1e626c509f136bd9364d1e_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\ae62559ace1e626c509f136bd9364d1e_JaffaCakes118.exe"
  2⤵
  - Modifies WinLogon for persistence
  - Loads dropped DLL
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2940
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\ae62559ace1e626c509f136bd9364d1e_JaffaCakes118.exe" +s +h
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2008
  - - C:\Windows\SysWOW64\attrib.exe
      attrib "C:\Users\Admin\AppData\Local\Temp\ae62559ace1e626c509f136bd9364d1e_JaffaCakes118.exe" +s +h
      4⤵
      Sets file to hidden
      System Location Discovery: System Language Discovery
      Views/modifies file attributes
      PID:2756
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2020
  - - C:\Windows\SysWOW64\attrib.exe
      attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
      4⤵
      Sets file to hidden
      System Location Discovery: System Language Discovery
      Views/modifies file attributes
      PID:2292
- - C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
    "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2664
  - - C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
      "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
      4⤵
      Executes dropped EXE
      Adds Run key to start application
      System Location Discovery: System Language Discovery
      Suspicious behavior: GetForegroundWindowSpam
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      PID:2608
    - - C:\Windows\SysWOW64\notepad.exe
        
        notepad
        5⤵
        System Location Discovery: System Language Discovery
        
        PID:2288

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

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Modify Registry

T1112

Credential Access

Discovery

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\mbf.ikn

Filesize
658KB

MD5
0c86cc8f205ef63dcd0a8ad5f5cbb1cd

SHA1
b4156689be430c2874333e5fa186913bd8bf67cd

SHA256
14844aefaebc451e4ba8a3c098981d674dd704225bec5275550d10863905c7a6

SHA512
906af43c75753eaa6cbc93acd383e4490390f3416b7590fd5586b4bbb414d1654821bfce077b43bc8a0cc8f133c4ba1ccd06aa4eca4046f1b011a3acc2b1bd3f

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

Filesize
1.3MB

MD5
ae62559ace1e626c509f136bd9364d1e

SHA1
d299f96ffa39f55b3edf1c5c5202cfc2e578302a

SHA256
dd323f7ecfce0618a782015375fff2d10d511655518f101bc8ba8528f9687dac

SHA512
ab8fb900632efce279a38c311f67ca073548c20009c7ae19f783351253696b3d92d8a693c05bf949ea1a05be9dad64243601aafa04fc37ce396d58bb1cecf05c

Download Submit
memory/2288-42-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/2288-80-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/2608-81-0x00000000000C0000-0x0000000000172000-memory.dmp

Filesize
712KB

Download
memory/2608-41-0x00000000000C0000-0x0000000000172000-memory.dmp

Filesize
712KB

Download
memory/2608-40-0x00000000000C0000-0x0000000000172000-memory.dmp

Filesize
712KB

Download
memory/2608-82-0x00000000000C0000-0x0000000000172000-memory.dmp

Filesize
712KB

Download
memory/2940-13-0x00000000000C0000-0x0000000000172000-memory.dmp

Filesize
712KB

Download
memory/2940-14-0x00000000000C0000-0x0000000000172000-memory.dmp

Filesize
712KB

Download
memory/2940-15-0x0000000000280000-0x0000000000281000-memory.dmp

Filesize
4KB

Download
memory/2940-7-0x00000000000C0000-0x0000000000172000-memory.dmp

Filesize
712KB

Download
memory/2940-12-0x00000000000C0000-0x0000000000172000-memory.dmp

Filesize
712KB

Download
memory/2940-11-0x00000000000C0000-0x0000000000172000-memory.dmp

Filesize
712KB

Download
memory/2940-9-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2940-83-0x00000000000C0000-0x0000000000172000-memory.dmp

Filesize
712KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads