Overview

overview

10

Static

static

7

b1b1b46182...18.exe

windows7-x64

10

b1b1b46182...18.exe

windows10-2004-x64

10

Sharing

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General

  • Target
    b1b1b46182236ad1ca363773c4a601df_JaffaCakes118
  • Size 558KB
  • Sample240616-exrkastbjm
  • SHA256 1e06ef556ce681f14ed8fe9cfd3ebba0dfd2ec97602cfa39b99bec9a7437ed1a
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
buerexecutionloaderupx

Malware Config

Extracted

Family

  • buer

C2

  • https://bankcreditsign.com/

Targets

    • Target
      b1b1b46182236ad1ca363773c4a601df_JaffaCakes118
    • Size 558KB
    • SHA256 1e06ef556ce681f14ed8fe9cfd3ebba0dfd2ec97602cfa39b99bec9a7437ed1a
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    buerexecutionloaderupx

    • Buer

      Buer is a new modular loader first seen in August 2019.

      loaderbuer

    • Buer Loader

      Detects Buer loader in memory or disk.

      loader

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

      execution

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

      upx

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks