Malicious PDF — malware analysis report

Static analysis result for SHA-256 892939acb5b2dc64…

MALICIOUS

PDF

36.3 KB Created: 2021-05-21 03:52:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: dbb0579d144c8052862ddbc5749ae4bb SHA-1: 3f199eeb504578efdc057a2bc6eae301a5db9dc1 SHA-256: 892939acb5b2dc64b697e8304f918e77f125474e17e022d1ae1c9a50f6adac5e
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains lures for 'free Robux' and game hacks, directing users to malicious URLs. The embedded URLs and document body text strongly suggest a phishing or scam attempt to redirect users to potentially harmful content. While no scripts were explicitly extracted, the PDF structure and embedded URIs indicate a malicious intent to lead users to external, untrusted resources.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9492

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://netcdn.xyz/app/431946152/where-to-get-free-robux-game-hack PDF link annotation
    • http://olimpik.mk/imagescke/upload/files/free-spins-coin-master-links-no-human-verification_GM406889139.pdfIn PDF document text
    • http://olimpik.mk/imagescke/upload/files/coin-master-spin-ml_GM406889139.pdfIn PDF document text
    • http://olimpik.mk/imagescke/upload/files/how-to-get-free-robux-on-mobile_GM431946152.pdfIn PDF document text
    • http://olimpik.mk/imagescke/upload/files/minecraft-hacked-client-download_GM479516143.pdfIn PDF document text
    • http://olimpik.mk/imagescke/upload/files/coin-master-free-spins-link-2021-haktuts_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00003184.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3184 25856 bytes
SHA-256: 8e57900ebd44c356f0f924ff3c0f5c16c98c316d4bf0fc24e234df5a23bad753
font_01_sfnt_off00006bf0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BF0 18484 bytes
SHA-256: fb52c80d186d334eb1da06902c7e87ffbc7c7b48a2b49bbb6429fdd2e0d05906

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