Malicious PDF — malware analysis report

Static analysis result for SHA-256 a58c7b48bb93f861…

MALICIOUS

PDF

42.5 KB Created: 2021-05-18 02:06:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 829f910b2f16d1ea4c68d8e683e33b7e SHA-1: 37c0104a722176bd96ab492b224ad6d40316bd86 SHA-256: a58c7b48bb93f86123ac95a09e66bdd8aab6601d629ad2f5dc7ec8e825ccefda
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple links to redirectors and scam sites, specifically targeting users interested in game hacks and free in-game currency. The heuristic firings confirm the presence of malicious redirector links and a lure for game hacks. While no scripts were explicitly extracted, the nature of the links suggests a phishing or scamming attempt, likely delivered as a spearphishing attachment.

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/how-to-get-minecraft-pe-for-free-game-hack In PDF document text
    • https://dirigentigiustizia.it/images/robux-com-free-robux_GM431946152.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/free-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/free-robux-no-verification-2021-ios_GM431946152.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/robux-gift-card-free_GM431946152.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/get-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/minecraft-free-online_GM479516143.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/lazyblox-com-free-robux_GM431946152.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/roblox-free-robux_GM431946152.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/coin-master-free-spins-and-coins-today-gift-reward_GM406889139.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/robux-no-verification_GM431946152.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/coin-master-hack-apk-2021-ios_GM406889139.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/free-robux-generator_GM431946152.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/robux-boost_GM431946152.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/coin-master-free-spin-and-coin_GM406889139.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/haktutsin-2021-09-coinmaster50freespinandcoinlinkhtml-m-1_GM406889139.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/free-coin-master-spins-link_GM406889139.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/roblox-no-download-hack_GM431946152.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/coin-master-100-free-spins-link_GM406889139.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/coin-master-real-free-spins_GM406889139.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/hack-minecraft_GM479516143.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_003_off00004a03.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A03 26096 bytes
SHA-256: 9fb26565f031848b3582920c6610cf0ed73fbad8486c3e4b37ec4e8aab4a3f02
font_01_sfnt_off000084da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84DA 18028 bytes
SHA-256: 3ed4cc32a3614fc42f77637b5226aac8e96d41a1bdab71d116d218547dfdfc35

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