Malicious PDF — malware analysis report

Static analysis result for SHA-256 434f15c2dcd852d6…

MALICIOUS

PDF

45.5 KB Created: 2021-05-14 07:20:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 338d352b373bbd5612ebc921bd53c2d8 SHA-1: 11f76173b4d44face40ba1ab274e5cd1e87b3818 SHA-256: 434f15c2dcd852d687518996384ef0a7403a3f7820753c1c2049da6bfdd2f801
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, specifically advertising 'free generator / game hack' lures. The document body, though partially corrupted, contains references to game hacks and URLs that reinforce this theme. The presence of embedded URLs and the ML classifier's high confidence score indicate a malicious intent to redirect users to potentially harmful content.

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/can-you-hack-coin-master-game-hack In PDF document text
    • http://bpbfloydinc.org/images/to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://bpbfloydinc.org/images/teach-me-to-hack_GM431946152.pdfIn PDF document text
    • http://bpbfloydinc.org/images/lazyblocks-com-robux_GM431946152.pdfIn PDF document text
    • http://bpbfloydinc.org/images/minecraft-pe-hack-client-2021_GM479516143.pdfIn PDF document text
    • http://bpbfloydinc.org/images/free-2021-robux_GM431946152.pdfIn PDF document text
    • http://bpbfloydinc.org/images/free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://bpbfloydinc.org/images/free-hair-roblox-boy_GM431946152.pdfIn PDF document text
    • http://bpbfloydinc.org/images/coin-master-game-legitimate-hack-without-signing-up-or-shareing_GM406889139.pdfIn PDF document text
    • http://bpbfloydinc.org/images/robuxglobalcom_GM431946152.pdfIn PDF document text
    • http://bpbfloydinc.org/images/coinmasterhack-club_GM406889139.pdfIn PDF document text
    • http://bpbfloydinc.org/images/free-robux-no-human-verification-and-no-survey_GM431946152.pdfIn PDF document text
    • http://bpbfloydinc.org/images/free-to-play-minecraft-servers_GM479516143.pdfIn PDF document text
    • http://bpbfloydinc.org/images/free-spins-and-coins-coin-master_GM406889139.pdfIn PDF document text
    • http://bpbfloydinc.org/images/free-robux-com_GM431946152.pdfIn PDF document text
    • http://bpbfloydinc.org/images/free-robux-with-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://bpbfloydinc.org/images/free-robux-gift-card-codes_GM431946152.pdfIn PDF document text
    • http://bpbfloydinc.org/images/how-to-hack-minecraft-pe_GM479516143.pdfIn PDF document text
    • http://bpbfloydinc.org/images/how-to-get-free-robux-promo-codes_GM431946152.pdfIn PDF document text
    • http://bpbfloydinc.org/images/free-headless-head-roblox_GM431946152.pdfIn PDF document text
    • http://bpbfloydinc.org/images/clean-master-coins-hack_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_off00004a04.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A04 26888 bytes
SHA-256: d17d0aea392381bdce69742128bf8d5b8ad600a0948fe62812a0d4829f6e7899
font_01_sfnt_off00008623.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8623 2880 bytes
SHA-256: 10d025f04f706eb71cdda4f99784df1b9ccb52e48080e43095e0398eaef6f132
font_02_sfnt_off0000900e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x900E 18020 bytes
SHA-256: 2a833d42ea66e9b84acb7b91147defd58d864c1bb9bc3ae4b7d787d82e58cd2a