Overview

overview

10

Static

static

6

readme.js

windows7_x64

10

readme.js

windows10_x64

10

Sharing

Copy URL
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General

  • Target

    readme.js

  • Size

    843KB

  • Sample

    210201-gn2z1a6yhe

  • MD5

    871b84c3e9c24b706b51eb717ee50627

  • SHA1

    696ff0a47d733e11a1468ee898ff31c9c27a9937

  • SHA256

    c16916fbad3101fbbb241ec7a8ebbb5e46288a6dfeed80c70e47127d1ae9b965

  • SHA512

    7e15b8e85b084cdc30990f696e5d9be6c67c457a89a47043e379209fb6a31446a1e6a75e3195b77037f0f703f33f6dcfca7c6ce10f68f617527673ec2956cee1

Score
10/10
ostapdownloader

Malware Config

Targets

    • Target

      readme.js

    • Size

      843KB

    • MD5

      871b84c3e9c24b706b51eb717ee50627

    • SHA1

      696ff0a47d733e11a1468ee898ff31c9c27a9937

    • SHA256

      c16916fbad3101fbbb241ec7a8ebbb5e46288a6dfeed80c70e47127d1ae9b965

    • SHA512

      7e15b8e85b084cdc30990f696e5d9be6c67c457a89a47043e379209fb6a31446a1e6a75e3195b77037f0f703f33f6dcfca7c6ce10f68f617527673ec2956cee1

    Score
    10/10
    ostapdownloader

    • ostap

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

      downloaderostap

    • Blocklisted process makes network request

    • 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

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks