Overview

overview

10

Static

static

10

53239b2248...06.exe

windows7-x64

10

53239b2248...06.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    53239b2248ca7d472bc67b59f7eca706.exe

  • Size

    2.5MB

  • Sample

    230119-m99kmscg2s

  • MD5

    53239b2248ca7d472bc67b59f7eca706

  • SHA1

    4afc972112e649969259135c67ff73d8d5453e07

  • SHA256

    4f97955f6474864761120631e82cd5c7dd6b176f23da933f250cf5475e3164bd

  • SHA512

    aae37621deaeb75348cc9d5f04af9bce358696693fc44142c74c5c1ba28cfa11517b2f611523af317321f74217d13df4d8723a141d96cbb551ad2bfca4b59cc7

  • SSDEEP

    49152:ySg8kOqBMdDhtQM4I+MkmJm9LcBwQYdXQ4J:tfkOqGhhtn9+nmJm9LcBCXvJ

Score
10/10
dcratinfostealerpersistencerat

Malware Config

Targets

    • Target

      53239b2248ca7d472bc67b59f7eca706.exe

    • Size

      2.5MB

    • MD5

      53239b2248ca7d472bc67b59f7eca706

    • SHA1

      4afc972112e649969259135c67ff73d8d5453e07

    • SHA256

      4f97955f6474864761120631e82cd5c7dd6b176f23da933f250cf5475e3164bd

    • SHA512

      aae37621deaeb75348cc9d5f04af9bce358696693fc44142c74c5c1ba28cfa11517b2f611523af317321f74217d13df4d8723a141d96cbb551ad2bfca4b59cc7

    • SSDEEP

      49152:ySg8kOqBMdDhtQM4I+MkmJm9LcBwQYdXQ4J:tfkOqGhhtn9+nmJm9LcBCXvJ

    Score
    10/10
    dcratinfostealerpersistencerat

    • DcRat

      DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.

      ratinfostealerdcrat

    • Modifies WinLogon for persistence

      persistence

    • Process spawned unexpected child process

      This typically indicates the parent process was compromised via an exploit or macro.

    • DCRat payload

      Detects payload of DCRat, commonly dropped by NSIS installers.

      rat

    • Executes dropped EXE

    • Checks computer location settings

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

    • Adds Run key to start application

      persistence
    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1
T1053

Persistence

Winlogon Helper DLL

1
T1004

Registry Run Keys / Startup Folder

1
T1060

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Modify Registry

2
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks