darkcomet | 1485b843e94e04eab3bbb59e6131f53bb9b10b260fc87591621dbc1996ea7647

General

Target

8e3e5a4b416091a72b3a861c5393fec3_JaffaCakes118.exe
Size

425KB
MD5

8e3e5a4b416091a72b3a861c5393fec3
SHA1

be2f0df81ef450287f56b1a40445dc8f1fbcdef3
SHA256

1485b843e94e04eab3bbb59e6131f53bb9b10b260fc87591621dbc1996ea7647
SHA512

0b58aaebd261b71b7b7ae22f06633fefc8fda6f0844150d06c35402e22c6464605a8644881956fc81225a21c47ad78fd855e1aab177d15302d822602ce7a08d3
SSDEEP

12288:15SJzw+aV+6d+TE+5G+IW+h/+7/fPHKXqn1bjNS/t+R6pikSvCZRLJF:v1BVJcQk/Iq5MYAp5JLX

Score

10^/10

darkcomet guest16 discovery persistence rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

habbomaxx.dyndns.org:1604

Mutex

DC_MUTEX-89FVJZH

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
stKaQfqjdgsG
install
true
offline_keylogger
true
persistence
false
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

Processes:

8e3e5a4b416091a72b3a861c5393fec3_JaffaCakes118.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Windows\\system32\\MSDCSC\\msdcsc.exe"	8e3e5a4b416091a72b3a861c5393fec3_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid process

1316 msdcsc.exe
Loads dropped DLL 2 IoCs

Processes:

8e3e5a4b416091a72b3a861c5393fec3_JaffaCakes118.exe

pid process

3052 8e3e5a4b416091a72b3a861c5393fec3_JaffaCakes118.exe
3052 8e3e5a4b416091a72b3a861c5393fec3_JaffaCakes118.exe

pid	process
1316	msdcsc.exe

pid	process
3052	8e3e5a4b416091a72b3a861c5393fec3_JaffaCakes118.exe
3052	8e3e5a4b416091a72b3a861c5393fec3_JaffaCakes118.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

8e3e5a4b416091a72b3a861c5393fec3_JaffaCakes118.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Windows\\system32\\MSDCSC\\msdcsc.exe"	8e3e5a4b416091a72b3a861c5393fec3_JaffaCakes118.exe

Drops file in System32 directory 3 IoCs

Processes:

8e3e5a4b416091a72b3a861c5393fec3_JaffaCakes118.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\MSDCSC\	8e3e5a4b416091a72b3a861c5393fec3_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\MSDCSC\msdcsc.exe	8e3e5a4b416091a72b3a861c5393fec3_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\MSDCSC\msdcsc.exe	8e3e5a4b416091a72b3a861c5393fec3_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

8e3e5a4b416091a72b3a861c5393fec3_JaffaCakes118.exe

description	pid	process	target process
PID 3032 set thread context of 3052	3032	8e3e5a4b416091a72b3a861c5393fec3_JaffaCakes118.exe	8e3e5a4b416091a72b3a861c5393fec3_JaffaCakes118.exe

UPX packed file 9 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/3052-9-0x0000000000400000-0x00000000004BC000-memory.dmp	upx
behavioral1/memory/3052-10-0x0000000000400000-0x00000000004BC000-memory.dmp	upx
behavioral1/memory/3052-8-0x0000000000400000-0x00000000004BC000-memory.dmp	upx
behavioral1/memory/3052-5-0x0000000000400000-0x00000000004BC000-memory.dmp	upx
behavioral1/memory/3052-4-0x0000000000400000-0x00000000004BC000-memory.dmp	upx
behavioral1/memory/3052-11-0x0000000000400000-0x00000000004BC000-memory.dmp	upx
behavioral1/memory/3052-13-0x0000000000400000-0x00000000004BC000-memory.dmp	upx
behavioral1/memory/3052-12-0x0000000000400000-0x00000000004BC000-memory.dmp	upx
behavioral1/memory/3052-27-0x0000000000400000-0x00000000004BC000-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 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:

8e3e5a4b416091a72b3a861c5393fec3_JaffaCakes118.exe8e3e5a4b416091a72b3a861c5393fec3_JaffaCakes118.exemsdcsc.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8e3e5a4b416091a72b3a861c5393fec3_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8e3e5a4b416091a72b3a861c5393fec3_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 23 IoCs

Processes:

8e3e5a4b416091a72b3a861c5393fec3_JaffaCakes118.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	3052	8e3e5a4b416091a72b3a861c5393fec3_JaffaCakes118.exe
Token: SeSecurityPrivilege	3052	8e3e5a4b416091a72b3a861c5393fec3_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	3052	8e3e5a4b416091a72b3a861c5393fec3_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	3052	8e3e5a4b416091a72b3a861c5393fec3_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	3052	8e3e5a4b416091a72b3a861c5393fec3_JaffaCakes118.exe
Token: SeSystemtimePrivilege	3052	8e3e5a4b416091a72b3a861c5393fec3_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	3052	8e3e5a4b416091a72b3a861c5393fec3_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	3052	8e3e5a4b416091a72b3a861c5393fec3_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	3052	8e3e5a4b416091a72b3a861c5393fec3_JaffaCakes118.exe
Token: SeBackupPrivilege	3052	8e3e5a4b416091a72b3a861c5393fec3_JaffaCakes118.exe
Token: SeRestorePrivilege	3052	8e3e5a4b416091a72b3a861c5393fec3_JaffaCakes118.exe
Token: SeShutdownPrivilege	3052	8e3e5a4b416091a72b3a861c5393fec3_JaffaCakes118.exe
Token: SeDebugPrivilege	3052	8e3e5a4b416091a72b3a861c5393fec3_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	3052	8e3e5a4b416091a72b3a861c5393fec3_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	3052	8e3e5a4b416091a72b3a861c5393fec3_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	3052	8e3e5a4b416091a72b3a861c5393fec3_JaffaCakes118.exe
Token: SeUndockPrivilege	3052	8e3e5a4b416091a72b3a861c5393fec3_JaffaCakes118.exe
Token: SeManageVolumePrivilege	3052	8e3e5a4b416091a72b3a861c5393fec3_JaffaCakes118.exe
Token: SeImpersonatePrivilege	3052	8e3e5a4b416091a72b3a861c5393fec3_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	3052	8e3e5a4b416091a72b3a861c5393fec3_JaffaCakes118.exe
Token: 33	3052	8e3e5a4b416091a72b3a861c5393fec3_JaffaCakes118.exe
Token: 34	3052	8e3e5a4b416091a72b3a861c5393fec3_JaffaCakes118.exe
Token: 35	3052	8e3e5a4b416091a72b3a861c5393fec3_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

8e3e5a4b416091a72b3a861c5393fec3_JaffaCakes118.exemsdcsc.exe

pid process

3032 8e3e5a4b416091a72b3a861c5393fec3_JaffaCakes118.exe
1316 msdcsc.exe

pid	process
3032	8e3e5a4b416091a72b3a861c5393fec3_JaffaCakes118.exe
1316	msdcsc.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

8e3e5a4b416091a72b3a861c5393fec3_JaffaCakes118.exe8e3e5a4b416091a72b3a861c5393fec3_JaffaCakes118.exe

description	pid	process	target process
PID 3032 wrote to memory of 3052	3032	8e3e5a4b416091a72b3a861c5393fec3_JaffaCakes118.exe	8e3e5a4b416091a72b3a861c5393fec3_JaffaCakes118.exe
PID 3032 wrote to memory of 3052	3032	8e3e5a4b416091a72b3a861c5393fec3_JaffaCakes118.exe	8e3e5a4b416091a72b3a861c5393fec3_JaffaCakes118.exe
PID 3032 wrote to memory of 3052	3032	8e3e5a4b416091a72b3a861c5393fec3_JaffaCakes118.exe	8e3e5a4b416091a72b3a861c5393fec3_JaffaCakes118.exe
PID 3032 wrote to memory of 3052	3032	8e3e5a4b416091a72b3a861c5393fec3_JaffaCakes118.exe	8e3e5a4b416091a72b3a861c5393fec3_JaffaCakes118.exe
PID 3032 wrote to memory of 3052	3032	8e3e5a4b416091a72b3a861c5393fec3_JaffaCakes118.exe	8e3e5a4b416091a72b3a861c5393fec3_JaffaCakes118.exe
PID 3032 wrote to memory of 3052	3032	8e3e5a4b416091a72b3a861c5393fec3_JaffaCakes118.exe	8e3e5a4b416091a72b3a861c5393fec3_JaffaCakes118.exe
PID 3032 wrote to memory of 3052	3032	8e3e5a4b416091a72b3a861c5393fec3_JaffaCakes118.exe	8e3e5a4b416091a72b3a861c5393fec3_JaffaCakes118.exe
PID 3032 wrote to memory of 3052	3032	8e3e5a4b416091a72b3a861c5393fec3_JaffaCakes118.exe	8e3e5a4b416091a72b3a861c5393fec3_JaffaCakes118.exe
PID 3052 wrote to memory of 1316	3052	8e3e5a4b416091a72b3a861c5393fec3_JaffaCakes118.exe	msdcsc.exe
PID 3052 wrote to memory of 1316	3052	8e3e5a4b416091a72b3a861c5393fec3_JaffaCakes118.exe	msdcsc.exe
PID 3052 wrote to memory of 1316	3052	8e3e5a4b416091a72b3a861c5393fec3_JaffaCakes118.exe	msdcsc.exe
PID 3052 wrote to memory of 1316	3052	8e3e5a4b416091a72b3a861c5393fec3_JaffaCakes118.exe	msdcsc.exe

C:\Users\Admin\AppData\Local\Temp\8e3e5a4b416091a72b3a861c5393fec3_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\8e3e5a4b416091a72b3a861c5393fec3_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3032
- C:\Users\Admin\AppData\Local\Temp\8e3e5a4b416091a72b3a861c5393fec3_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\8e3e5a4b416091a72b3a861c5393fec3_JaffaCakes118.exe"
  2⤵
  - Modifies WinLogon for persistence
  - Loads dropped DLL
  - Adds Run key to start application
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3052
- - C:\Windows\SysWOW64\MSDCSC\msdcsc.exe
    "C:\Windows\system32\MSDCSC\msdcsc.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    PID:1316

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Winlogon Helper DLL

1

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Winlogon Helper DLL

1

T1547.004

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

\Windows\SysWOW64\MSDCSC\msdcsc.exe

Filesize
425KB

MD5
8e3e5a4b416091a72b3a861c5393fec3

SHA1
be2f0df81ef450287f56b1a40445dc8f1fbcdef3

SHA256
1485b843e94e04eab3bbb59e6131f53bb9b10b260fc87591621dbc1996ea7647

SHA512
0b58aaebd261b71b7b7ae22f06633fefc8fda6f0844150d06c35402e22c6464605a8644881956fc81225a21c47ad78fd855e1aab177d15302d822602ce7a08d3

Download Submit
memory/3052-4-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/3052-10-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/3052-8-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/3052-6-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3052-5-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/3052-2-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/3052-11-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/3052-13-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/3052-12-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/3052-14-0x0000000000650000-0x0000000000651000-memory.dmp

Filesize
4KB

Download
memory/3052-9-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/3052-27-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads