Overview

overview

10

Static

static

8

9d0a21ce53...d7.xls

windows7_x64

10

9d0a21ce53...d7.xls

windows10_x64

10

Sharing

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General

  • Target

    9d0a21ce53c6004f0caa583e2bcfbad4200eb7b3c9f5b2b68c8858592c7ec9d7

  • Size

    1.6MB

  • Sample

    201006-atyeqxyfmn

  • MD5

    213f9328ca43d51c50b74cdaaeca1ae5

  • SHA1

    f7e7b5d5442328f615a707c78995e37fb0643af5

  • SHA256

    9d0a21ce53c6004f0caa583e2bcfbad4200eb7b3c9f5b2b68c8858592c7ec9d7

  • SHA512

    79977dd6d090ce44a0b59f0f17e5ea29e2e9f0c3cb17d9feb3d88bc29dfab752312b59bd8699b930d973d0d740984c5266fe9fdfd53a2fed9cd716772ec10264

Score
10/10
ostapdownloadermacro

Malware Config

Targets

    • Target

      9d0a21ce53c6004f0caa583e2bcfbad4200eb7b3c9f5b2b68c8858592c7ec9d7

    • Size

      1.6MB

    • MD5

      213f9328ca43d51c50b74cdaaeca1ae5

    • SHA1

      f7e7b5d5442328f615a707c78995e37fb0643af5

    • SHA256

      9d0a21ce53c6004f0caa583e2bcfbad4200eb7b3c9f5b2b68c8858592c7ec9d7

    • SHA512

      79977dd6d090ce44a0b59f0f17e5ea29e2e9f0c3cb17d9feb3d88bc29dfab752312b59bd8699b930d973d0d740984c5266fe9fdfd53a2fed9cd716772ec10264

    Score
    10/10
    ostapdownloader

    • Process spawned unexpected child process

      This typically indicates the parent process was compromised via an exploit or macro.

    • 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

3
T1082

Query Registry

2
T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks