Malicious PDF — malware analysis report

Static analysis result for SHA-256 59ea67bd9825473e…

MALICIOUS

PDF

42.2 KB Created: 2021-05-15 02:29:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: f2143d870a28ff18629155a0291b7fbf SHA-1: affedf41c0339a7f072155a4e95eef0d4bb42391 SHA-256: 59ea67bd9825473ee472d9be83ad867af8f349f030d00009bbfbde23914a8ef0
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, specifically advertising game hacks and free currency for popular games. The document body and extracted URLs strongly suggest a lure for users seeking cheats or exploits, leading them to potentially malicious sites. While no scripts were explicitly extracted, the nature of the links and the heuristic firings indicate a high likelihood of further malicious activity, such as downloading second-stage payloads.

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-pe-hack-client-ios-game-hack In PDF document text
    • http://archi-z.ru/images/coin-master-heaven-free-daily-spins_GM406889139.pdfIn PDF document text
    • http://archi-z.ru/images/free-robux-no-verification-no-download-2021_GM431946152.pdfIn PDF document text
    • http://archi-z.ru/images/como-generar-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://archi-z.ru/images/game-hunters-coin-master_GM406889139.pdfIn PDF document text
    • http://archi-z.ru/images/coin-master-apk-mod-free-download_GM406889139.pdfIn PDF document text
    • http://archi-z.ru/images/coin-master-free-spins-8-14-2021_GM406889139.pdfIn PDF document text
    • http://archi-z.ru/images/coin-master-hack-spin-generator_GM406889139.pdfIn PDF document text
    • http://archi-z.ru/images/free-coin-master-hacks-no-verification_GM406889139.pdfIn PDF document text
    • http://archi-z.ru/images/free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://archi-z.ru/images/minecraft-games-free-to-play-online_GM479516143.pdfIn PDF document text
    • http://archi-z.ru/images/robux-free-com_GM431946152.pdfIn PDF document text
    • http://archi-z.ru/images/is-free-robux-real_GM431946152.pdfIn PDF document text
    • http://archi-z.ru/images/free-robux-script_GM431946152.pdfIn PDF document text
    • http://archi-z.ru/images/roblox-getting-hacked_GM431946152.pdfIn PDF document text
    • http://archi-z.ru/images/coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • http://archi-z.ru/images/get-free-cards-in-coin-master_GM406889139.pdfIn PDF document text
    • http://archi-z.ru/images/roblox-hack-com_GM431946152.pdfIn PDF document text
    • http://archi-z.ru/images/hacker-minecraft-song_GM479516143.pdfIn PDF document text
    • http://archi-z.ru/images/how-to-get-free-minecraft-alts_GM479516143.pdfIn PDF document text
    • http://archi-z.ru/images/coin-master-free-spins-link-today-new-2021_GM406889139.pdfIn PDF document text
    • https://playhack.in/minecraftIn PDF document text
    • https://code.giftcards.comIn 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_off00004a1c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A1C 25184 bytes
SHA-256: 1b1d9667a3f7a19a28dfab01600989aea2c1a32445fdeb4fbac49de18a1c2c02
stream_004_off0000835b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x835B 18108 bytes
SHA-256: e50e7ffc92e693739b6a1d5d28be47030cd8670fbb45c47044b0ac4b43b5d3d6

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