Overview

overview

10

Static

static

C4Loader.exe

windows7-x64

10

C4Loader.exe

windows10-2004-x64

7

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General

  • Target

    C4Loader.exe

  • Size

    605KB

  • Sample

    221029-qpxxwshhbr

  • MD5

    36e7c18effa74eafc3deaa1ed610784d

  • SHA1

    4db5ec9966bb4774e1f8454082e48685e4ef6c69

  • SHA256

    422dd590314ca25efb6376925c54fceed3d1b40500574b6f72b03fd2bd2fd558

  • SHA512

    98d0fff9607b5534c786503fa230554d134201b44b8134b1d796010f0f512d55e2214b7b11ec771703fab93039b953cc85da58239d11d5666ca54e5cb98de36e

  • SSDEEP

    12288:roeWCLJztI8sLQ6givg4Nyz/DJVHEi2jfo3Rs30oEuQptT/MlK0Vvu4UgiTJ3:rpWCL48sLQ6gZvEiKfCRs3RELAO

Score
10/10
xmrigevasionminerupx

Malware Config

Targets

    • Target

      C4Loader.exe

    • Size

      605KB

    • MD5

      36e7c18effa74eafc3deaa1ed610784d

    • SHA1

      4db5ec9966bb4774e1f8454082e48685e4ef6c69

    • SHA256

      422dd590314ca25efb6376925c54fceed3d1b40500574b6f72b03fd2bd2fd558

    • SHA512

      98d0fff9607b5534c786503fa230554d134201b44b8134b1d796010f0f512d55e2214b7b11ec771703fab93039b953cc85da58239d11d5666ca54e5cb98de36e

    • SSDEEP

      12288:roeWCLJztI8sLQ6givg4Nyz/DJVHEi2jfo3Rs30oEuQptT/MlK0Vvu4UgiTJ3:rpWCL48sLQ6gZvEiKfCRs3RELAO

    Score
    10/10
    xmrigevasionminerupx

    • Modifies security service

      evasion

    • xmrig

      XMRig is a high performance, open source, cross platform CPU/GPU miner.

      minerxmrig

    • XMRig Miner payload

      miner

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Executes dropped EXE

    • Stops running service(s)

      evasion

    • UPX packed file

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

      upx

    • Loads dropped DLL

    • Uses the VBS compiler for execution

    • Legitimate hosting services abused for malware hosting/C2

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v6

Tasks