darkcomet | a56b7626f51392efde61f7badbde40701275e457ee210b22aab17592b9c009a9

General

Target

e1aaadeea3b6a7eb266464759e3015e0_JaffaCakes118.exe
Size

1.7MB
MD5

e1aaadeea3b6a7eb266464759e3015e0
SHA1

b8598cc86990f8037a337d37d815bf6bc2731a4f
SHA256

a56b7626f51392efde61f7badbde40701275e457ee210b22aab17592b9c009a9
SHA512

8b86674e6d410ea4d0dd5e76b584388dcc8aa12880f11e964c18019b289bd651dfe056464448be6d0a90090fdbf39cb32ff9a11f94fb9fd62e9637eb0409c1fb
SSDEEP

12288:BPr07ZEcWwpOYrEAw5bq4RGLeEF7EDG2O2fra7RSRUL7uHDIbntFuisEi6v3DyNq:BjQcbUADuU8iWr9itzwZTEqjQ0EBbtG

Score

10^/10

darkcomet victim discovery persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Victim

C2

loldude12345.zapto.org:1604

Mutex

DC_MUTEX-WYV5PKM

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
oiVpUYYaVk85
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

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"	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2808	msdcsc.exe

Loads dropped DLL 1 IoCs

pid	Process
2612	svchost.exe

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-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Windows\\system32\\MSDCSC\\msdcsc.exe"	svchost.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\MSDCSC\msdcsc.exe	svchost.exe
File opened for modification	C:\Windows\SysWOW64\MSDCSC\msdcsc.exe	svchost.exe
File opened for modification	C:\Windows\SysWOW64\MSDCSC\	svchost.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1712 set thread context of 2612	1712	e1aaadeea3b6a7eb266464759e3015e0_JaffaCakes118.exe	30

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	e1aaadeea3b6a7eb266464759e3015e0_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of AdjustPrivilegeToken 23 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2612	svchost.exe
Token: SeSecurityPrivilege	2612	svchost.exe
Token: SeTakeOwnershipPrivilege	2612	svchost.exe
Token: SeLoadDriverPrivilege	2612	svchost.exe
Token: SeSystemProfilePrivilege	2612	svchost.exe
Token: SeSystemtimePrivilege	2612	svchost.exe
Token: SeProfSingleProcessPrivilege	2612	svchost.exe
Token: SeIncBasePriorityPrivilege	2612	svchost.exe
Token: SeCreatePagefilePrivilege	2612	svchost.exe
Token: SeBackupPrivilege	2612	svchost.exe
Token: SeRestorePrivilege	2612	svchost.exe
Token: SeShutdownPrivilege	2612	svchost.exe
Token: SeDebugPrivilege	2612	svchost.exe
Token: SeSystemEnvironmentPrivilege	2612	svchost.exe
Token: SeChangeNotifyPrivilege	2612	svchost.exe
Token: SeRemoteShutdownPrivilege	2612	svchost.exe
Token: SeUndockPrivilege	2612	svchost.exe
Token: SeManageVolumePrivilege	2612	svchost.exe
Token: SeImpersonatePrivilege	2612	svchost.exe
Token: SeCreateGlobalPrivilege	2612	svchost.exe
Token: 33	2612	svchost.exe
Token: 34	2612	svchost.exe
Token: 35	2612	svchost.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 1712 wrote to memory of 2612	1712	e1aaadeea3b6a7eb266464759e3015e0_JaffaCakes118.exe	30
PID 1712 wrote to memory of 2612	1712	e1aaadeea3b6a7eb266464759e3015e0_JaffaCakes118.exe	30
PID 1712 wrote to memory of 2612	1712	e1aaadeea3b6a7eb266464759e3015e0_JaffaCakes118.exe	30
PID 1712 wrote to memory of 2612	1712	e1aaadeea3b6a7eb266464759e3015e0_JaffaCakes118.exe	30
PID 1712 wrote to memory of 2612	1712	e1aaadeea3b6a7eb266464759e3015e0_JaffaCakes118.exe	30
PID 1712 wrote to memory of 2612	1712	e1aaadeea3b6a7eb266464759e3015e0_JaffaCakes118.exe	30
PID 1712 wrote to memory of 2612	1712	e1aaadeea3b6a7eb266464759e3015e0_JaffaCakes118.exe	30
PID 1712 wrote to memory of 2612	1712	e1aaadeea3b6a7eb266464759e3015e0_JaffaCakes118.exe	30
PID 1712 wrote to memory of 2612	1712	e1aaadeea3b6a7eb266464759e3015e0_JaffaCakes118.exe	30
PID 1712 wrote to memory of 2612	1712	e1aaadeea3b6a7eb266464759e3015e0_JaffaCakes118.exe	30
PID 1712 wrote to memory of 2612	1712	e1aaadeea3b6a7eb266464759e3015e0_JaffaCakes118.exe	30
PID 1712 wrote to memory of 2612	1712	e1aaadeea3b6a7eb266464759e3015e0_JaffaCakes118.exe	30
PID 1712 wrote to memory of 2612	1712	e1aaadeea3b6a7eb266464759e3015e0_JaffaCakes118.exe	30
PID 2612 wrote to memory of 2808	2612	svchost.exe	31
PID 2612 wrote to memory of 2808	2612	svchost.exe	31
PID 2612 wrote to memory of 2808	2612	svchost.exe	31
PID 2612 wrote to memory of 2808	2612	svchost.exe	31

C:\Users\Admin\AppData\Local\Temp\e1aaadeea3b6a7eb266464759e3015e0_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e1aaadeea3b6a7eb266464759e3015e0_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1712
- C:\Windows\SysWOW64\svchost.exe
  "C:\Windows\system32\svchost.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:2612
- - C:\Windows\SysWOW64\MSDCSC\msdcsc.exe
    "C:\Windows\system32\MSDCSC\msdcsc.exe"
    3⤵
    - Executes dropped EXE
    PID:2808

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 Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Windows\SysWOW64\MSDCSC\msdcsc.exe

Filesize
20KB

MD5
54a47f6b5e09a77e61649109c6a08866

SHA1
4af001b3c3816b860660cf2de2c0fd3c1dfb4878

SHA256
121118a0f5e0e8c933efd28c9901e54e42792619a8a3a6d11e1f0025a7324bc2

SHA512
88ee0ef5af1b0b38c19ab4c307636352fc403ea74f3bfb17e246f7fd815ac042183086133cd9fe805bd47e15854776871bb7d384e419862c91503eeb82bfb419

Download Submit
memory/1712-25-0x0000000000F40000-0x0000000001040000-memory.dmp

Filesize
1024KB

Download
memory/1712-1-0x00000000747C0000-0x0000000074D6B000-memory.dmp

Filesize
5.7MB

Download
memory/1712-2-0x00000000747C0000-0x0000000074D6B000-memory.dmp

Filesize
5.7MB

Download
memory/1712-30-0x00000000747C0000-0x0000000074D6B000-memory.dmp

Filesize
5.7MB

Download
memory/1712-23-0x00000000747C0000-0x0000000074D6B000-memory.dmp

Filesize
5.7MB

Download
memory/1712-0-0x00000000747C1000-0x00000000747C2000-memory.dmp

Filesize
4KB

Download
memory/1712-21-0x00000000747C0000-0x0000000074D6B000-memory.dmp

Filesize
5.7MB

Download
memory/2612-24-0x00000000001B0000-0x00000000001B1000-memory.dmp

Filesize
4KB

Download
memory/2612-9-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2612-22-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2612-20-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2612-19-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2612-17-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2612-15-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2612-26-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2612-7-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2612-5-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2612-4-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2612-3-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2612-35-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2612-11-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2612-13-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads