Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb94f45f5433d34f…

MALICIOUS

PDF

45.4 KB Created: 2021-05-14 22:36:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 00676a73c9c409d4193fc96bf33db8ec SHA-1: 61847a789732d9c763bce1ed6afe7fb09bfb04f8 SHA-256: eb94f45f5433d34f950299f62b7e515f996d323f514d534d11f0ba3721d316f6
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links that redirect to websites promoting game hacks and free in-game currency, a common lure for phishing or malware distribution. The heuristic firings confirm the presence of malicious redirector links and a general ML classification of maliciousness. While no scripts were explicitly extracted, the PDF structure itself facilitates the redirection, potentially leading to a second-stage download or exploit.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9507

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-tiradas-gratis-game-hack In PDF document text
    • https://www.u-pin-it.com/images/free-games-like-coin-master_GM406889139.pdfIn PDF document text
    • https://www.u-pin-it.com/images/coin-master-free-spins-save_GM406889139.pdfIn PDF document text
    • https://www.u-pin-it.com/images/minecraft-iphone-free_GM479516143.pdfIn PDF document text
    • https://www.u-pin-it.com/images/how-to-get-free-robux-app_GM431946152.pdfIn PDF document text
    • https://www.u-pin-it.com/images/can-you-earn-robux_GM431946152.pdfIn PDF document text
    • https://www.u-pin-it.com/images/free-robux-real-2021_GM431946152.pdfIn PDF document text
    • https://www.u-pin-it.com/images/blox-pink-robux-free_GM431946152.pdfIn PDF document text
    • https://www.u-pin-it.com/images/free-spins-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • https://www.u-pin-it.com/images/daily-coin-master_GM406889139.pdfIn PDF document text
    • https://www.u-pin-it.com/images/roblox-hack-download_GM431946152.pdfIn PDF document text
    • https://www.u-pin-it.com/images/today-free-spin-coin-master_GM406889139.pdfIn PDF document text
    • https://www.u-pin-it.com/images/is-minecraft-dungeons-free_GM479516143.pdfIn PDF document text
    • https://www.u-pin-it.com/images/coin-master-free-spins-and-coins-today-gift-reward_GM406889139.pdfIn PDF document text
    • https://www.u-pin-it.com/images/is-minecraft-bedrock-edition-free_GM479516143.pdfIn PDF document text
    • https://www.u-pin-it.com/images/op-rewards-free-robux_GM431946152.pdfIn PDF document text
    • https://www.u-pin-it.com/images/unlimited-spin-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://www.u-pin-it.com/images/how-to-hack-coin-master-using-es-filer_GM406889139.pdfIn PDF document text
    • https://www.u-pin-it.com/images/blogspot-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://www.u-pin-it.com/images/can-i-have-robux_GM431946152.pdfIn PDF document text
    • https://www.u-pin-it.com/images/roblox-shirt-template-free_GM431946152.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000048c6.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x48C6 27364 bytes
SHA-256: ae004521e3889cb2a2f4057f7ffe6479173bd532793b5033784fba00680dee80
font_01_sfnt_off000086bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86BD 2820 bytes
SHA-256: 96a70491b0783ad8c6fc9b11a18f021aa22c69ac41ee4499b781d16a1b99b689
font_02_sfnt_off0000905d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x905D 17720 bytes
SHA-256: 8f572e18194144161629560968b1be47f6d3ca2e707ed2c38e953a7df1c42241

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