Overview

overview

10

Static

static

3

FixedBoots...r1.exe

windows10-ltsc 2021-x64

10

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General

  • Target

    FixedBootstrapper1.exe

  • Size

    4.8MB

  • Sample

    241116-wf31fa1clk

  • MD5

    12d7d6f7372db4da1e1242bd2efc8ae8

  • SHA1

    fcde71dec007c4ad3656eb9ab2ff9d4a066e6f1b

  • SHA256

    e4d875f0cbd3ec785d08862382e4c139496d78d54daf985e78a54883ef0fa8dd

  • SHA512

    d07ce82badc014650a0464daa1a315dc6a51be4b3495738c9be0c08f81980f37e6d6b8baed32eb6227bee9a4c062a87f582b0333391ef59b413ef62ae1b6b777

  • SSDEEP

    98304:0xsTP26lnPgfjAyAzffPJFSZ0kZP2avl16aEQFluJvY/b0xtR:0xsTuoPgfVAznPkb3VLalY/bi

Score
10/10
dcratdiscoveryevasioninfostealerpersistencerattrojan

Malware Config

Targets

    • Target

      FixedBootstrapper1.exe

    • Size

      4.8MB

    • MD5

      12d7d6f7372db4da1e1242bd2efc8ae8

    • SHA1

      fcde71dec007c4ad3656eb9ab2ff9d4a066e6f1b

    • SHA256

      e4d875f0cbd3ec785d08862382e4c139496d78d54daf985e78a54883ef0fa8dd

    • SHA512

      d07ce82badc014650a0464daa1a315dc6a51be4b3495738c9be0c08f81980f37e6d6b8baed32eb6227bee9a4c062a87f582b0333391ef59b413ef62ae1b6b777

    • SSDEEP

      98304:0xsTP26lnPgfjAyAzffPJFSZ0kZP2avl16aEQFluJvY/b0xtR:0xsTuoPgfVAznPkb3VLalY/bi

    Score
    10/10
    dcratdiscoveryevasioninfostealerpersistencerattrojan

    • DcRat

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

      ratinfostealerdcrat

    • Dcrat family

      dcrat

    • Process spawned unexpected child process

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

    • UAC bypass

      evasiontrojan

    • DCRat payload

      Detects payload of DCRat, commonly dropped by NSIS installers.

      rat

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Checks whether UAC is enabled

      evasiontrojan
    behavioral1

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Privilege Escalation

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Defense Evasion

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Impair Defenses

1
T1562

Disable or Modify Tools

1
T1562.001

Modify Registry

3
T1112

Credential Access

Discovery

Query Registry

2
T1012

System Information Discovery

3
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Tasks