Overview

overview

10

Static

static

3

f4d16e7236...18.exe

windows7-x64

10

f4d16e7236...18.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    f4d16e7236887920d01ac59230bc6cf7_JaffaCakes118

  • Size

    1.9MB

  • Sample

    240417-cn9cmsce5v

  • MD5

    f4d16e7236887920d01ac59230bc6cf7

  • SHA1

    d3d6623b885d39afd92e419b0aa1d9109f30ae6e

  • SHA256

    0d926f7f14556e0fcbf2bf4af5df95dd23f8dd855ef09fe3f1dd6b8978d26488

  • SHA512

    cff90485e960e4d23b4aa15407b2782a1c08bcb25951fdf38bd5c3f459fc572eaaa332e8e447bd7a0a9d4feb45a7e26b64a2079f573d70de65a3bb27ed89adfb

  • SSDEEP

    24576:8VkS8Eqm8sChfmkqR7lc4COVpW4TicTasT5Wxqyi0JJhAxsJD7so7cdmhm0cpfKp:8Vk+L88YZOVv3hdkqN08sJzc9V6P2U

Score
10/10
dcratevasioninfostealerpersistencerat

Malware Config

Targets

    • Target

      f4d16e7236887920d01ac59230bc6cf7_JaffaCakes118

    • Size

      1.9MB

    • MD5

      f4d16e7236887920d01ac59230bc6cf7

    • SHA1

      d3d6623b885d39afd92e419b0aa1d9109f30ae6e

    • SHA256

      0d926f7f14556e0fcbf2bf4af5df95dd23f8dd855ef09fe3f1dd6b8978d26488

    • SHA512

      cff90485e960e4d23b4aa15407b2782a1c08bcb25951fdf38bd5c3f459fc572eaaa332e8e447bd7a0a9d4feb45a7e26b64a2079f573d70de65a3bb27ed89adfb

    • SSDEEP

      24576:8VkS8Eqm8sChfmkqR7lc4COVpW4TicTasT5Wxqyi0JJhAxsJD7so7cdmhm0cpfKp:8Vk+L88YZOVv3hdkqN08sJzc9V6P2U

    Score
    10/10
    dcratevasioninfostealerpersistencerat

    • DcRat

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

      ratinfostealerdcrat

    • 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

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

      evasion

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Checks computer location settings

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

    • Executes dropped EXE

    • Identifies Wine through registry keys

      Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

      evasion

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Scheduled Task/Job

1
T1053

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Defense Evasion

Virtualization/Sandbox Evasion

2
T1497

Modify Registry

1
T1112

Credential Access

Discovery

Query Registry

5
T1012

Virtualization/Sandbox Evasion

2
T1497

System Information Discovery

3
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks