Malicious PDF — malware analysis report

Static analysis result for SHA-256 896f06a413442b25…

MALICIOUS

PDF

33.1 KB Created: 2021-07-06 03:47:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 6a5a6a0bc29e7fc04453fedda2cfecdb SHA-1: 701365eb5e56070202b46b3b6be625b66d40f929 SHA-256: 896f06a413442b254e1bce87b194dd9a730c98a062fcb997a2be732ae5ca951d
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous links to redirector domains, masquerading as "free generators" or "game hacks" for popular games. These links likely lead to further malicious content or phishing pages. The ML classifier also strongly indicated maliciousness, supporting the lure-based attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

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 http://netcdn.tw/app/431946152/robloxmatchcom-free-robux-game-hack In PDF document text
    • http://opac.pps.uin-alauddin.ac.id/repository/hack-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://opac.pps.uin-alauddin.ac.id/repository/roblox-generator_GM431946152.pdfIn PDF document text
    • http://opac.pps.uin-alauddin.ac.id/repository/free-robux-app-real_GM431946152.pdfIn PDF document text
    • http://opac.pps.uin-alauddin.ac.id/repository/roblox-hack-me-robux_GM431946152.pdfIn PDF document text
    • http://opac.pps.uin-alauddin.ac.id/repository/how-to-get-free-admin-in-roblox_GM431946152.pdfIn PDF document text
    • http://opac.pps.uin-alauddin.ac.id/repository/roblox-hack-tool-cheat-hackercon_GM431946152.pdfIn PDF document text
    • http://opac.pps.uin-alauddin.ac.id/repository/links-to-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://opac.pps.uin-alauddin.ac.id/repository/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://opac.pps.uin-alauddin.ac.id/repository/coin-master-free-spins-link-blogspot-2021_GM406889139.pdfIn PDF document text
    • http://opac.pps.uin-alauddin.ac.id/repository/how-to-get-minecraft-coins-for-free_GM479516143.pdfIn PDF document text
    • http://opac.pps.uin-alauddin.ac.id/repository/minecraft-free-ios-2021_GM479516143.pdfIn PDF document text
    • http://opac.pps.uin-alauddin.ac.id/repository/roblox-printables-free_GM431946152.pdfIn PDF document text
    • http://opac.pps.uin-alauddin.ac.id/repository/anime-cross-roblox-hack_GM431946152.pdfIn PDF document text
    • http://opac.pps.uin-alauddin.ac.id/repository/freegames911com-coinmastertipsandcheats2021freecoinsandspins_GM406889139.pdfIn PDF document text
    • http://opac.pps.uin-alauddin.ac.id/repository/how-to-hack-coin-master-root_GM406889139.pdfIn PDF document text
    • http://opac.pps.uin-alauddin.ac.id/repository/free-minecraft-realm-codes_GM479516143.pdfIn PDF document text
    • http://opac.pps.uin-alauddin.ac.id/repository/hacks-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://opac.pps.uin-alauddin.ac.id/repository/roblox-exploit-scripts_GM431946152.pdfIn PDF document text
    • http://opac.pps.uin-alauddin.ac.id/repository/coin-master-daily-spin-link-app_GM406889139.pdfIn PDF document text
    • http://opac.pps.uin-alauddin.ac.id/repository/how-to-get-minecoins-in-minecraft-for-free_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
font_00_sfnt_off00002b6b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2B6B 21892 bytes
SHA-256: 2fba9114f69f43807f4f3ed5d3f5871e6acad992ccd8c45a295888faf65a293b
font_01_sfnt_off00005c14.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C14 19320 bytes
SHA-256: 0d578fc51ad0f188a9c4505a85014dba64e81475c3b1c73d40a415d6db3d1745

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