Malicious PDF — malware analysis report

Static analysis result for SHA-256 232a60a4754393a8…

MALICIOUS

PDF

50.7 KB Created: 2021-06-11 07:01:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: d069a449c1640ad470b3de3b6da210b0 SHA-1: 1bf93d1b45703d286423f90b477a3424d04df15d SHA-256: 232a60a4754393a80049f5d36a19218ff9c1bb6fe48041c9bd6eff01d0da5ced
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link that redirects to known malicious infrastructure, specifically a site offering 'free generator / game hack' content. This lure is designed to trick users into clicking through to a potentially harmful site. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9779

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.tw/app/431946152/free-roblox-group-members-game-hack In PDF document text
    • http://empresa-venta.hr/files/hox-to-get-free-item-in-roblox-2021_GM431946152.pdfIn PDF document text
    • http://empresa-venta.hr/files/robux-com-free_GM431946152.pdfIn PDF document text
    • http://empresa-venta.hr/files/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://empresa-venta.hr/files/minecraft-java-hacks_GM479516143.pdfIn PDF document text
    • http://empresa-venta.hr/files/get-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://empresa-venta.hr/files/free-spin-link-coin-master-today_GM406889139.pdfIn PDF document text
    • http://empresa-venta.hr/files/free-spins-on-coin-master-game_GM406889139.pdfIn PDF document text
    • http://empresa-venta.hr/files/coin-master-free-link-today_GM406889139.pdfIn PDF document text
    • http://empresa-venta.hr/files/coin-master-free-spin-and-coin-link-today_GM406889139.pdfIn PDF document text
    • http://empresa-venta.hr/files/coin-and-spin-link_GM406889139.pdfIn PDF document text
    • http://empresa-venta.hr/files/coin-master-free-spins-coins_GM406889139.pdfIn PDF document text
    • http://empresa-venta.hr/files/can-i-get-robux-for-free_GM431946152.pdfIn PDF document text
    • http://empresa-venta.hr/files/hack-mod-coin-master_GM406889139.pdfIn PDF document text
    • http://empresa-venta.hr/files/coin-master-free-coins-and-spins-daily-summary_GM406889139.pdfIn PDF document text
    • http://empresa-venta.hr/files/how-to-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • http://empresa-venta.hr/files/coin-master-free-spins-twitter_GM406889139.pdfIn PDF document text
    • http://empresa-venta.hr/files/clean-master-hack-coins_GM406889139.pdfIn PDF document text
    • http://empresa-venta.hr/files/how-to-get-free-spins-on-coin-master-blogspot_GM406889139.pdfIn PDF document text
    • http://empresa-venta.hr/files/how-to-get-free-robux-as-a-kid_GM431946152.pdfIn PDF document text
    • http://empresa-venta.hr/files/roblox-hack-scripts-pastebin_GM431946152.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_004_off000054fd.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x54FD 31064 bytes
SHA-256: 5adb550b28005a6033b7ddda6ae58823de58c0f25f24a50b9119cb69f049ecc5
font_01_sfnt_off000098e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x98E9 2824 bytes
SHA-256: 94c1b019735d7e491765340abe50b2897410e2ec65ecf141c08bd9f2220897c4
font_02_sfnt_off0000a298.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA298 18720 bytes
SHA-256: c6bc42cab8a1df66b3e98cfba5df444810822a638aa640d344bc4610dd6a0de6

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