Malicious PDF — malware analysis report

Static analysis result for SHA-256 941b785c158ad84a…

MALICIOUS

PDF

36.0 KB Created: 2021-05-22 13:12:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: f541f4c68442f9e047203936e35c1c1c SHA-1: 54c555f3cafaea631ceec9416aea63a25c143608 SHA-256: 941b785c158ad84a950e4758b95cb2422799d859fcd18312ada72c9f11d4e439
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains multiple heuristics indicating it is malicious, specifically linking to a 'free generator / game hack' redirector. The document body text and embedded URLs reinforce this, attempting to trick the user into downloading a fake hack for Minecraft. The primary malicious URL identified is https://netcdn.xyz/app/479516143/download-minecraft-free-hiapphere-game-hack.

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/479516143/download-minecraft-free-hiapphere-game-hack PDF link annotation
    • http://scuttworksdesigns.us/images/get-free-coin-master_GM406889139.pdfIn PDF document text
    • http://scuttworksdesigns.us/images/coin-master-code-for-free-spins_GM406889139.pdfIn PDF document text
    • http://scuttworksdesigns.us/images/coin-master-on-facebook_GM406889139.pdfIn PDF document text
    • http://scuttworksdesigns.us/images/20210-pubg-uc-in-indian-rupees_GM1330123889.pdfIn PDF document text
    • http://scuttworksdesigns.us/images/robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000033e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x33E1 24240 bytes
SHA-256: c0a981ecada4dc4cf65a149113400fd8db7a4006373f6d5b215593c8e7256b26
font_01_sfnt_off00006a72.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A72 18632 bytes
SHA-256: d5148a3ebf6685d38fa7a82d6609f6f0baf7c57c3f299eff6d795086d297ed64

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