Malicious PDF — malware analysis report

Static analysis result for SHA-256 0de9d4e8c06c95f1…

MALICIOUS

PDF

46.6 KB Created: 2021-05-16 22:04:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-23
MD5: cc335cccfb73a8f725b0f50055f870a3 SHA-1: a068e9e29d1c5467e4736c30a485fba323a9d784 SHA-256: 0de9d4e8c06c95f1176ac271da1ffba6f5cf714812c87e0f159820c9904fd631
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, specifically promoting 'game hacks' and 'free spins/coins' to lure victims. The document body and embedded URLs strongly suggest a phishing or scam attempt aimed at users seeking in-game advantages. While no scripts were explicitly extracted, the PDF structure and embedded URLs indicate a redirection chain designed to lead users to potentially harmful content or further malicious downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8948

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/406889139/coin-master-free-spins-and-coins-blogspot-game-hack In PDF document text
    • http://stansabbiatura.com/images/coin-master-support_GM406889139.pdfIn PDF document text
    • http://stansabbiatura.com/images/how-to-hack-coin-master-ios_GM406889139.pdfIn PDF document text
    • http://stansabbiatura.com/images/how-to-get-free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • http://stansabbiatura.com/images/wizard-hacks_GM479516143.pdfIn PDF document text
    • http://stansabbiatura.com/images/hack-robux_GM431946152.pdfIn PDF document text
    • http://stansabbiatura.com/images/toolbox-mod_GM479516143.pdfIn PDF document text
    • http://stansabbiatura.com/images/where-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://stansabbiatura.com/images/mcpe-116_GM479516143.pdfIn PDF document text
    • http://stansabbiatura.com/images/free-spin-coin-master-link-today_GM406889139.pdfIn PDF document text
    • http://stansabbiatura.com/images/coin-master-free-coins_GM406889139.pdfIn PDF document text
    • http://stansabbiatura.com/images/daily-coin-master-free-link_GM406889139.pdfIn PDF document text
    • http://stansabbiatura.com/images/free-spin-and-coin-links_GM406889139.pdfIn PDF document text
    • http://stansabbiatura.com/images/hack-coin-master-mod-apk_GM406889139.pdfIn PDF document text
    • http://stansabbiatura.com/images/moonactive-free-spins_GM406889139.pdfIn PDF document text
    • http://stansabbiatura.com/images/roblox-free-login_GM431946152.pdfIn PDF document text
    • http://stansabbiatura.com/images/hack-coin-master-2021-pc_GM406889139.pdfIn PDF document text
    • http://stansabbiatura.com/images/how-to-get-free-shirts-on-roblox_GM431946152.pdfIn PDF document text
    • http://stansabbiatura.com/images/haktuts-coin-master-free-spin-link-today_GM406889139.pdfIn PDF document text
    • http://stansabbiatura.com/images/free-robux-not-a-scam_GM431946152.pdfIn PDF document text
    • http://stansabbiatura.com/images/haktuts-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004abb.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4ABB 29948 bytes
SHA-256: 0f8c1c8e72037f1d337f9c23354a51bde4d55e94f6eeac92571d73f92c952bc5
font_01_sfnt_off000087f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87F9 18636 bytes
SHA-256: 0f54115b9972647639797d248389657ce322f7c5c12f639c73d71ff235a73201
font_02_sfnt_off0000ab14.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAB14 3264 bytes
SHA-256: e32c06502c11b52acb5e814091c5fdbffd1e2a904ac7a9cfb8b5b180bd139088

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