Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d99079f39669bfe…

MALICIOUS

PDF

46.3 KB Created: 2021-06-07 18:26:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 14058973ddb96f25328723ceedd7d65c SHA-1: bf03287f0f76ac695885e04c46a488e7f1e8931e SHA-256: 2d99079f39669bfebd09ef58d88d5319fbf90924401960ebaf77f0ee71f92d63
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and infrastructure, disguised as game hacks and generators. The document body and heuristics indicate a lure to download further malicious content. No scripts were extracted, but the embedded URLs are highly suspicious and indicative of a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9832

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.tw/app/431946152/robux-console-hack-game-hack In PDF document text
    • http://safari-crimea.com/images/free-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://safari-crimea.com/images/are-robux-generators-safe_GM431946152.pdfIn PDF document text
    • http://safari-crimea.com/images/coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • http://safari-crimea.com/images/coin-master-free-spins-link-hack_GM406889139.pdfIn PDF document text
    • http://safari-crimea.com/images/coin-master-free-spins-hack_GM406889139.pdfIn PDF document text
    • http://safari-crimea.com/images/robux-free-2021_GM431946152.pdfIn PDF document text
    • http://safari-crimea.com/images/coin-master-hack-2021-android_GM406889139.pdfIn PDF document text
    • http://safari-crimea.com/images/minecraft-free-play-now_GM479516143.pdfIn PDF document text
    • http://safari-crimea.com/images/minecraft-free-exe_GM479516143.pdfIn PDF document text
    • http://safari-crimea.com/images/coin-master-free-spons-apk-2021_GM406889139.pdfIn PDF document text
    • http://safari-crimea.com/images/carding-for-pubg-uc_GM1330123889.pdfIn PDF document text
    • http://safari-crimea.com/images/coin-master-free-stuff_GM406889139.pdfIn PDF document text
    • http://safari-crimea.com/images/minecraft-fly-hack_GM479516143.pdfIn PDF document text
    • http://safari-crimea.com/images/minecraft-tower-defense-hacked_GM479516143.pdfIn PDF document text
    • http://safari-crimea.com/images/minecraft-java-free-trial_GM479516143.pdfIn PDF document text
    • http://safari-crimea.com/images/coin-master-100-spin_GM406889139.pdfIn PDF document text
    • http://safari-crimea.com/images/free-robux-picture_GM431946152.pdfIn PDF document text
    • http://safari-crimea.com/images/can-i-get-robux-for-free_GM431946152.pdfIn PDF document text
    • http://safari-crimea.com/images/coin-master-hack-online-2021_GM406889139.pdfIn PDF document text
    • http://safari-crimea.com/images/free-coins-and-spins-link-for-coin-master_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_004_off00004d9d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4D9D 32132 bytes
SHA-256: 91e1c005fec0ee378b55d1b017d0a42897709b376a2657569cf8f6b412e7b9e2
font_01_sfnt_off00009222.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9222 18320 bytes
SHA-256: 1d846d97568f3fc48cb97d528b315f7c9da6575241e96986e82f3c98b1510055

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