Overview

overview

10

Static

static

0a365240a3...eb.exe

windows7_x64

10

0a365240a3...eb.exe

windows10_x64

10

Sharing

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General

  • Target

    0a365240a36f0958331bb5c9f022d78b816edd66ee25baf4445e7a5421bb75eb

  • Size

    943KB

  • Sample

    201203-34zxrv862j

  • MD5

    1062b0544beb5457fb6fe2b42a5d279d

  • SHA1

    e0802b7dc9034902afbbe8ce4a2f8a107278b32b

  • SHA256

    0a365240a36f0958331bb5c9f022d78b816edd66ee25baf4445e7a5421bb75eb

  • SHA512

    2910ecf620c20672c440a647045f91512f17b16a11a701a667f29f17d24b0bf8f8aa56ebcda39111fd72ed9e8dec159622f205da18e31a06bbd84bed654b5b5d

Score
10/10
ostapdownloaderpersistence

Malware Config

Targets

    • Target

      0a365240a36f0958331bb5c9f022d78b816edd66ee25baf4445e7a5421bb75eb

    • Size

      943KB

    • MD5

      1062b0544beb5457fb6fe2b42a5d279d

    • SHA1

      e0802b7dc9034902afbbe8ce4a2f8a107278b32b

    • SHA256

      0a365240a36f0958331bb5c9f022d78b816edd66ee25baf4445e7a5421bb75eb

    • SHA512

      2910ecf620c20672c440a647045f91512f17b16a11a701a667f29f17d24b0bf8f8aa56ebcda39111fd72ed9e8dec159622f205da18e31a06bbd84bed654b5b5d

    Score
    10/10
    ostapdownloaderpersistence

    • ostap

      Ostap is a JS downloader, used to deliver other families.

      downloaderostap

    • Blocklisted process makes network request

    • Adds Run key to start application

      persistence

    • Enumerates physical storage devices

      Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

1
T1112

Credential Access

Discovery

System Information Discovery

1
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks