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
1420	msdcsc.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-1-5-21-4050598569-1597076380-177084960-1000\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 3304 set thread context of 824	3304	e1aaadeea3b6a7eb266464759e3015e0_JaffaCakes118.exe	82

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 24 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	824	svchost.exe
Token: SeSecurityPrivilege	824	svchost.exe
Token: SeTakeOwnershipPrivilege	824	svchost.exe
Token: SeLoadDriverPrivilege	824	svchost.exe
Token: SeSystemProfilePrivilege	824	svchost.exe
Token: SeSystemtimePrivilege	824	svchost.exe
Token: SeProfSingleProcessPrivilege	824	svchost.exe
Token: SeIncBasePriorityPrivilege	824	svchost.exe
Token: SeCreatePagefilePrivilege	824	svchost.exe
Token: SeBackupPrivilege	824	svchost.exe
Token: SeRestorePrivilege	824	svchost.exe
Token: SeShutdownPrivilege	824	svchost.exe
Token: SeDebugPrivilege	824	svchost.exe
Token: SeSystemEnvironmentPrivilege	824	svchost.exe
Token: SeChangeNotifyPrivilege	824	svchost.exe
Token: SeRemoteShutdownPrivilege	824	svchost.exe
Token: SeUndockPrivilege	824	svchost.exe
Token: SeManageVolumePrivilege	824	svchost.exe
Token: SeImpersonatePrivilege	824	svchost.exe
Token: SeCreateGlobalPrivilege	824	svchost.exe
Token: 33	824	svchost.exe
Token: 34	824	svchost.exe
Token: 35	824	svchost.exe
Token: 36	824	svchost.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 3304 wrote to memory of 824	3304	e1aaadeea3b6a7eb266464759e3015e0_JaffaCakes118.exe	82
PID 3304 wrote to memory of 824	3304	e1aaadeea3b6a7eb266464759e3015e0_JaffaCakes118.exe	82
PID 3304 wrote to memory of 824	3304	e1aaadeea3b6a7eb266464759e3015e0_JaffaCakes118.exe	82
PID 3304 wrote to memory of 824	3304	e1aaadeea3b6a7eb266464759e3015e0_JaffaCakes118.exe	82
PID 3304 wrote to memory of 824	3304	e1aaadeea3b6a7eb266464759e3015e0_JaffaCakes118.exe	82
PID 3304 wrote to memory of 824	3304	e1aaadeea3b6a7eb266464759e3015e0_JaffaCakes118.exe	82
PID 3304 wrote to memory of 824	3304	e1aaadeea3b6a7eb266464759e3015e0_JaffaCakes118.exe	82
PID 3304 wrote to memory of 824	3304	e1aaadeea3b6a7eb266464759e3015e0_JaffaCakes118.exe	82
PID 3304 wrote to memory of 824	3304	e1aaadeea3b6a7eb266464759e3015e0_JaffaCakes118.exe	82
PID 3304 wrote to memory of 824	3304	e1aaadeea3b6a7eb266464759e3015e0_JaffaCakes118.exe	82
PID 3304 wrote to memory of 824	3304	e1aaadeea3b6a7eb266464759e3015e0_JaffaCakes118.exe	82
PID 3304 wrote to memory of 824	3304	e1aaadeea3b6a7eb266464759e3015e0_JaffaCakes118.exe	82
PID 3304 wrote to memory of 824	3304	e1aaadeea3b6a7eb266464759e3015e0_JaffaCakes118.exe	82
PID 3304 wrote to memory of 824	3304	e1aaadeea3b6a7eb266464759e3015e0_JaffaCakes118.exe	82
PID 824 wrote to memory of 1420	824	svchost.exe	83
PID 824 wrote to memory of 1420	824	svchost.exe	83
PID 824 wrote to memory of 1420	824	svchost.exe	83

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:3304
- C:\Windows\SysWOW64\svchost.exe
  "C:\Windows\system32\svchost.exe"
  2⤵
  - Modifies WinLogon for persistence
  - 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:824
- - C:\Windows\SysWOW64\MSDCSC\msdcsc.exe
    "C:\Windows\system32\MSDCSC\msdcsc.exe"
    3⤵
    - Executes dropped EXE
    PID:1420

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

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Downloads

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

Filesize
45KB

MD5
b7c999040d80e5bf87886d70d992c51e

SHA1
a8ed9a51cc14ccf99b670e60ebbc110756504929

SHA256
5c3257b277f160109071e7e716040e67657341d8c42aa68d9afafe1630fcc53e

SHA512
71ba2fbd705e51b488afe3bb33a67212cf297e97e8b1b20ada33e16956f7ec8f89a79e04a4b256fd61a442fada690aff0c807c2bdcc9165a9c7be3de725de309

Download Submit
memory/824-6-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/824-4-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/824-7-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/824-12-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/824-11-0x0000000000DC0000-0x0000000000DC1000-memory.dmp

Filesize
4KB

Download
memory/3304-0-0x0000000075582000-0x0000000075583000-memory.dmp

Filesize
4KB

Download
memory/3304-1-0x0000000075580000-0x0000000075B31000-memory.dmp

Filesize
5.7MB

Download
memory/3304-2-0x0000000075580000-0x0000000075B31000-memory.dmp

Filesize
5.7MB

Download
memory/3304-3-0x0000000075580000-0x0000000075B31000-memory.dmp

Filesize
5.7MB

Download
memory/3304-8-0x0000000075580000-0x0000000075B31000-memory.dmp

Filesize
5.7MB

Download
memory/3304-22-0x0000000075580000-0x0000000075B31000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads