Malicious PDF — malware analysis report

Static analysis result for SHA-256 15e5107765b08379…

MALICIOUS

PDF

42.7 KB Created: 2021-05-14 08:16:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 7dc2e9c210af8182afc3fb2288339f14 SHA-1: 30c0a51c6bdb0ad596eed776a30179469541a449 SHA-256: 15e5107765b08379768d6e7e5403b8ed861388b86fc757ca45fdebc89f72ba4d
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to known malicious infrastructure, specifically promoting free game hacks and generators. The document body and heuristics indicate a lure designed to trick users into visiting these malicious URLs, likely as part of a phishing or malware distribution scheme. No scripts were extracted, but the presence of multiple malicious redirector links is a strong indicator of malicious intent.

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/minecraft-xbox-360-free-game-hack In PDF document text
    • https://schaefer-rechtsanwaelte.com/images/minecraft-esp_GM479516143.pdfIn PDF document text
    • https://schaefer-rechtsanwaelte.com/images/is-minecraft-vr-free_GM479516143.pdfIn PDF document text
    • https://schaefer-rechtsanwaelte.com/images/daily-spin_GM406889139.pdfIn PDF document text
    • https://schaefer-rechtsanwaelte.com/images/coin-master-claim-free-spins_GM406889139.pdfIn PDF document text
    • https://schaefer-rechtsanwaelte.com/images/free-roblox-com_GM431946152.pdfIn PDF document text
    • https://schaefer-rechtsanwaelte.com/images/free-coin-master-game_GM406889139.pdfIn PDF document text
    • https://schaefer-rechtsanwaelte.com/images/coin-master-free-coins-link_GM406889139.pdfIn PDF document text
    • https://schaefer-rechtsanwaelte.com/images/coin-master-cheats-without-verification_GM406889139.pdfIn PDF document text
    • https://schaefer-rechtsanwaelte.com/images/free-robux-games-on-roblox_GM431946152.pdfIn PDF document text
    • https://schaefer-rechtsanwaelte.com/images/robux-no-verification_GM431946152.pdfIn PDF document text
    • https://schaefer-rechtsanwaelte.com/images/how-to-get-free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • https://schaefer-rechtsanwaelte.com/images/coin-master-daily-rewards-link_GM406889139.pdfIn PDF document text
    • https://schaefer-rechtsanwaelte.com/images/pasos-para-hackear-coins-master_GM406889139.pdfIn PDF document text
    • https://schaefer-rechtsanwaelte.com/images/wurst-download_GM479516143.pdfIn PDF document text
    • https://schaefer-rechtsanwaelte.com/images/get-free-minecraft-account_GM479516143.pdfIn PDF document text
    • https://schaefer-rechtsanwaelte.com/images/levvvel-coin-master_GM406889139.pdfIn PDF document text
    • https://schaefer-rechtsanwaelte.com/images/free-robux-games-that-actually-work-2021_GM431946152.pdfIn PDF document text
    • https://schaefer-rechtsanwaelte.com/images/coin-master-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://schaefer-rechtsanwaelte.com/images/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • https://schaefer-rechtsanwaelte.com/images/coin-master-free-spins-link-2021-today_GM406889139.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004b13.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4B13 25028 bytes
SHA-256: 667e16da4a591c2fc5bea012d96716128bdbd1ae5550903d68d1d5488abb6887
font_01_sfnt_off000082cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82CB 18820 bytes
SHA-256: 548eb6d6d76b0782fa129353e40cf244a6945086c4e3cc69bdc72bd715347561

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