Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee4260e5a59b23b7…

MALICIOUS

PDF

42.3 KB Created: 2021-05-13 05:58:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 525c38408dc5ead4dce217f2bfb1760e SHA-1: 365e2fa14da3f82d35c6a682979d26eae96feba1 SHA-256: ee4260e5a59b23b7e8607477d5a00371893ff3dfcc29fe86920eb5c59ef146b3
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to malicious redirectors, disguised as free game hacks and generators. The document body and embedded URLs strongly suggest a lure for users seeking free in-game items or cheats. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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/how-to-get-minecraft-java-for-free-game-hack In PDF document text
    • http://parsbaft.com/images/coin-master-heaven-daily-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://parsbaft.com/images/coin-master-hack-ios-reddit_GM406889139.pdfIn PDF document text
    • http://parsbaft.com/images/free-robux-place_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/free-spins-in-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://parsbaft.com/images/free-robux-only-username_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/coin-master-free-100-spin-link_GM406889139.pdfIn PDF document text
    • http://parsbaft.com/images/coin-master-official-website_GM406889139.pdfIn PDF document text
    • http://parsbaft.com/images/how-do-you-get-free-roblox_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/free-100-robux_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/haktuts-coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • http://parsbaft.com/images/free-coin-master-hack-no-verification_GM406889139.pdfIn PDF document text
    • http://parsbaft.com/images/cool-free-roblox-outfits_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/coin-master-level-4_GM406889139.pdfIn PDF document text
    • http://parsbaft.com/images/free-daily-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://parsbaft.com/images/free-coin-spin-daily-link-net_GM406889139.pdfIn PDF document text
    • http://parsbaft.com/images/roblox-2021-hack_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/free-spins-october-28-2021-coin-master_GM406889139.pdfIn PDF document text
    • http://parsbaft.com/images/2021-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://parsbaft.com/images/roblox-free-hats_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/coin-master-game-for-pc-free-download_GM406889139.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
stream_003_off00004a8e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A8E 24752 bytes
SHA-256: e91653cf1500f3f97fa6b903831b5fe9d736b60ab4161ef1b91ba1a4f2a600ca
font_01_sfnt_off00008355.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8355 18152 bytes
SHA-256: f45ec97da20a8e70f6e7437c3ced33d3bcbd99aef5af4daf3be0ff08d51a9e58

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