Overview

overview

10

Static

static

3

8cdcf8cbfe...21.exe

windows7-x64

10

8cdcf8cbfe...21.exe

windows10-2004-x64

10

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General

  • Target

    8cdcf8cbfe19eb634aad49ddea05b721

  • Size

    881KB

  • Sample

    240203-vjld5agdbn

  • MD5

    8cdcf8cbfe19eb634aad49ddea05b721

  • SHA1

    71d1d5378bcdbb3c176194dd648a9571789f4d5d

  • SHA256

    5efb103d520a1107fbaa200b8cbeafced0a36ad2355c4dd765f7638e5621313e

  • SHA512

    6524a0910a70b33b006bdf8525d32cbcedf5e8677e881943ce737fc68b70f8ba00a688e0d53175d1b4f670b2ec0dc69cb78b24e980d01edd474702ec58310f56

  • SSDEEP

    24576:aEtl9mRda1VITSGB2uJ2s4otqFCJrW9FqvSbqsHasgXhFHDAGtlRXZ+CP63n0Num:xEs12Gr4kfxuN

Score
10/10
persistenceransomware

Malware Config

Targets

    • Target

      8cdcf8cbfe19eb634aad49ddea05b721

    • Size

      881KB

    • MD5

      8cdcf8cbfe19eb634aad49ddea05b721

    • SHA1

      71d1d5378bcdbb3c176194dd648a9571789f4d5d

    • SHA256

      5efb103d520a1107fbaa200b8cbeafced0a36ad2355c4dd765f7638e5621313e

    • SHA512

      6524a0910a70b33b006bdf8525d32cbcedf5e8677e881943ce737fc68b70f8ba00a688e0d53175d1b4f670b2ec0dc69cb78b24e980d01edd474702ec58310f56

    • SSDEEP

      24576:aEtl9mRda1VITSGB2uJ2s4otqFCJrW9FqvSbqsHasgXhFHDAGtlRXZ+CP63n0Num:xEs12Gr4kfxuN

    Score
    10/10
    persistenceransomware

    • Modifies WinLogon for persistence

      persistence

    • Renames multiple (91) files with added filename extension

      This suggests ransomware activity of encrypting all the files on the system.

      ransomware

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Enumerates connected drives

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

    • Drops autorun.inf file

      Malware can abuse Windows Autorun to spread further via attached volumes.

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks