Malicious PDF — malware analysis report

Static analysis result for SHA-256 fca44cf890bbb02d…

MALICIOUS

PDF

36.1 KB Created: 2021-06-29 12:30:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 988f902708dfae326ac4f9334031c9b5 SHA-1: a8099687e373f570980e575642facfd323e1349c SHA-256: fca44cf890bbb02d20990b3cb3089eb51b0db255d2d761f700806263f51036ac
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure of free game cheats and currency to entice users to click on embedded links. The primary link directs to a known malicious redirector infrastructure, which is likely designed to serve further malicious content or phishing pages. The document's content and embedded URLs strongly suggest a social engineering tactic to compromise users.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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.co/app/431946152/free-robux-cheats-2021-game-hack In PDF document text
    • http://pustaka.fhuk.unand.ac.id/repository/free-robux-generator-com-roblox-hack_GM431946152.pdfIn PDF document text
    • http://pustaka.fhuk.unand.ac.id/repository/free-minecraft-worlds_GM479516143.pdfIn PDF document text
    • http://pustaka.fhuk.unand.ac.id/repository/free-robux-items_GM431946152.pdfIn PDF document text
    • http://pustaka.fhuk.unand.ac.id/repository/code-cheat-roblox-pokemon-brick-bronze_GM431946152.pdfIn PDF document text
    • http://pustaka.fhuk.unand.ac.id/repository/how-to-hack-roblox-players-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.fhuk.unand.ac.id/repository/comment-hack-roblox-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.fhuk.unand.ac.id/repository/best-free-dominus-in-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.fhuk.unand.ac.id/repository/minecraft-games-free-download_GM479516143.pdfIn PDF document text
    • http://pustaka.fhuk.unand.ac.id/repository/hack-todos-los-coches-pacifico-2-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.fhuk.unand.ac.id/repository/roblox-how-to-get-free-faces_GM431946152.pdfIn PDF document text
    • http://pustaka.fhuk.unand.ac.id/repository/roblox-dominus-lifting-simulator-hack_GM431946152.pdfIn PDF document text
    • http://pustaka.fhuk.unand.ac.id/repository/free-glitch-murder-mystery-free-knifes-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.fhuk.unand.ac.id/repository/free-stuff-on-pc-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.fhuk.unand.ac.id/repository/roblox-cheat-install_GM431946152.pdfIn PDF document text
    • http://pustaka.fhuk.unand.ac.id/repository/how-to-hack-in-roblox-wil-savannah_GM431946152.pdfIn PDF document text
    • http://pustaka.fhuk.unand.ac.id/repository/lumber-tycoon-2-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://pustaka.fhuk.unand.ac.id/repository/best-roblox-girls-free-cloths_GM431946152.pdfIn PDF document text
    • http://pustaka.fhuk.unand.ac.id/repository/spero-roblox-hack_GM431946152.pdfIn PDF document text
    • http://pustaka.fhuk.unand.ac.id/repository/how-to-make-hack-scripts-on-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.fhuk.unand.ac.id/repository/free-game-unlock-roblox_GM431946152.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_off0000331e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x331E 23292 bytes
SHA-256: f2b3f295e6a3c9e3946cabbc53fa8ed85e2e50820b163ecdb764e97759307f91
font_01_sfnt_off00006709.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6709 19388 bytes
SHA-256: 66271f67ace1c85642c4ae7fb36e1d06fa04df95752da77eb150168262ec74ae

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