darkcomet | 61c7c59633f930b41d76d1b54ff9c73376be6fe974e1232163bf1cb2df02fdc3

General

Target

JaffaCakes118_fe2abd17314a58a5f51d5b1632a89a7b.exe
Size

1016KB
MD5

fe2abd17314a58a5f51d5b1632a89a7b
SHA1

4f4f5b572ecf04b00092db1403b67983a96ad71a
SHA256

61c7c59633f930b41d76d1b54ff9c73376be6fe974e1232163bf1cb2df02fdc3
SHA512

1b86f0d2ba603ca6c645fe8f457c4b377840ffcfd924d479a0cccd725e3e42bded89a60f92326b79cf3a9db52d8af32c5e4dfa72a77d142ae1b9c86d676057b3
SSDEEP

12288:IsOYbEX/1Yp8ryHX24d2WWpu0Qieo2pF8PbMaIPENOQiaK90UgRXam4EKL0LBeuu:g74gdlM90JX00lUT151Lfbc2XDTYa6

Score

10^/10

darkcomet guest16 discovery persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

dougla381.no-ip.info:1604

Mutex

DC_MUTEX-HFR54V7

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
#D/DHwqH/c=b
install
true
offline_keylogger
true
persistence
true
reg_key
MicroUpdate

rc4.plain

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:\\MSDCSC\\msdcsc.exe"	svchost.exe

Downloads MZ/PE file 1 IoCs

flow	pid	Process
35	2360	Process not Found

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2656314083-4170277356-267438488-1000\Control Panel\International\Geo\Nation	svchost.exe

Executes dropped EXE 2 IoCs

pid	Process
2472	svchost.exe
4652	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-1-5-21-2656314083-4170277356-267438488-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\MSDCSC\\msdcsc.exe"	svchost.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3212 set thread context of 2472	3212	JaffaCakes118_fe2abd17314a58a5f51d5b1632a89a7b.exe	89

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 4 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	JaffaCakes118_fe2abd17314a58a5f51d5b1632a89a7b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MicrosoftEdgeUpdate.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
4268	MicrosoftEdgeUpdate.exe

Suspicious use of AdjustPrivilegeToken 24 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2472	svchost.exe
Token: SeSecurityPrivilege	2472	svchost.exe
Token: SeTakeOwnershipPrivilege	2472	svchost.exe
Token: SeLoadDriverPrivilege	2472	svchost.exe
Token: SeSystemProfilePrivilege	2472	svchost.exe
Token: SeSystemtimePrivilege	2472	svchost.exe
Token: SeProfSingleProcessPrivilege	2472	svchost.exe
Token: SeIncBasePriorityPrivilege	2472	svchost.exe
Token: SeCreatePagefilePrivilege	2472	svchost.exe
Token: SeBackupPrivilege	2472	svchost.exe
Token: SeRestorePrivilege	2472	svchost.exe
Token: SeShutdownPrivilege	2472	svchost.exe
Token: SeDebugPrivilege	2472	svchost.exe
Token: SeSystemEnvironmentPrivilege	2472	svchost.exe
Token: SeChangeNotifyPrivilege	2472	svchost.exe
Token: SeRemoteShutdownPrivilege	2472	svchost.exe
Token: SeUndockPrivilege	2472	svchost.exe
Token: SeManageVolumePrivilege	2472	svchost.exe
Token: SeImpersonatePrivilege	2472	svchost.exe
Token: SeCreateGlobalPrivilege	2472	svchost.exe
Token: 33	2472	svchost.exe
Token: 34	2472	svchost.exe
Token: 35	2472	svchost.exe
Token: 36	2472	svchost.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 3212 wrote to memory of 2472	3212	JaffaCakes118_fe2abd17314a58a5f51d5b1632a89a7b.exe	89
PID 3212 wrote to memory of 2472	3212	JaffaCakes118_fe2abd17314a58a5f51d5b1632a89a7b.exe	89
PID 3212 wrote to memory of 2472	3212	JaffaCakes118_fe2abd17314a58a5f51d5b1632a89a7b.exe	89
PID 3212 wrote to memory of 2472	3212	JaffaCakes118_fe2abd17314a58a5f51d5b1632a89a7b.exe	89
PID 3212 wrote to memory of 2472	3212	JaffaCakes118_fe2abd17314a58a5f51d5b1632a89a7b.exe	89
PID 3212 wrote to memory of 2472	3212	JaffaCakes118_fe2abd17314a58a5f51d5b1632a89a7b.exe	89
PID 3212 wrote to memory of 2472	3212	JaffaCakes118_fe2abd17314a58a5f51d5b1632a89a7b.exe	89
PID 3212 wrote to memory of 2472	3212	JaffaCakes118_fe2abd17314a58a5f51d5b1632a89a7b.exe	89
PID 3212 wrote to memory of 2472	3212	JaffaCakes118_fe2abd17314a58a5f51d5b1632a89a7b.exe	89
PID 3212 wrote to memory of 2472	3212	JaffaCakes118_fe2abd17314a58a5f51d5b1632a89a7b.exe	89
PID 3212 wrote to memory of 2472	3212	JaffaCakes118_fe2abd17314a58a5f51d5b1632a89a7b.exe	89
PID 3212 wrote to memory of 2472	3212	JaffaCakes118_fe2abd17314a58a5f51d5b1632a89a7b.exe	89
PID 3212 wrote to memory of 2472	3212	JaffaCakes118_fe2abd17314a58a5f51d5b1632a89a7b.exe	89
PID 3212 wrote to memory of 2472	3212	JaffaCakes118_fe2abd17314a58a5f51d5b1632a89a7b.exe	89
PID 2472 wrote to memory of 4652	2472	svchost.exe	91
PID 2472 wrote to memory of 4652	2472	svchost.exe	91
PID 2472 wrote to memory of 4652	2472	svchost.exe	91

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_fe2abd17314a58a5f51d5b1632a89a7b.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_fe2abd17314a58a5f51d5b1632a89a7b.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3212
- C:\Users\Admin\AppData\Local\Temp\svchost.exe
  C:\Users\Admin\AppData\Local\Temp\svchost.exe
  2⤵
  - Modifies WinLogon for persistence
  - Checks computer location settings
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2472
- - C:\MSDCSC\msdcsc.exe
    "C:\MSDCSC\msdcsc.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:4652

C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSI0IiBpbnN0YWxsZGF0ZXRpbWU9IjE3MzkyODM0MTAiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4Mzc1NTUzNjg2NzAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI1NDA1MjU0NjA2Ii8-PC9hcHA-PC9yZXF1ZXN0Pg
1⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
PID:4268

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

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

System Network Configuration Discovery

1

T1016

Internet Connection Discovery

1

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\MSDCSC\msdcsc.exe

Filesize
1.1MB

MD5
d881de17aa8f2e2c08cbb7b265f928f9

SHA1
08936aebc87decf0af6e8eada191062b5e65ac2a

SHA256
b3a37093609f9a20ad60b85a9fa9de2ba674cba9b5bd687729440c70ba619ca0

SHA512
5f23bfb1b8740247b36ed0ab741738c7d4c949736129e767213e321607d1ccd3e3a8428e4ba44bd28a275b5e3f6206285b1a522514b7ef7ea5e698d90a713d34

Download Submit
memory/2472-8-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/2472-14-0x00000000025A0000-0x00000000025A1000-memory.dmp

Filesize
4KB

Download
memory/2472-27-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/2472-12-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/2472-10-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/2472-5-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/3212-0-0x00000000749B2000-0x00000000749B3000-memory.dmp

Filesize
4KB

Download
memory/3212-1-0x00000000749B0000-0x0000000074F61000-memory.dmp

Filesize
5.7MB

Download
memory/3212-2-0x00000000749B0000-0x0000000074F61000-memory.dmp

Filesize
5.7MB

Download
memory/3212-13-0x00000000749B0000-0x0000000074F61000-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