Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa702133cfdfe91c…

MALICIOUS

PDF

34.4 KB Created: 2021-07-04 08:06:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 5bb95fb5a2864beb56d99e1c8be5fc9d SHA-1: f68ef95ca7fdc4cb298faacaccbdd98a9e4aeb3d SHA-256: fa702133cfdfe91c13e4aa066f68ed6eb4441ca61dd93e6cfd7bed5fa45266a7
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple embedded links that lead to a known malicious redirector, specifically http://netcdn.tw/app/406889139/coin-master-free-spins-haktuts-game-hack. The document body and embedded links are designed to lure users into clicking these links by promising game hacks or generators. The ML classifier also strongly indicated maliciousness.

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.tw/app/406889139/coin-master-free-spins-haktuts-game-hack In PDF document text
    • https://lib.unitri.ac.id/repository/roblox-cheat-engine-bypass-march-2021_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/coin-master-hack-spin_GM406889139.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/free-robux-2021-new_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/check-cashed-v3-beta-free-download-roblox_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/how-to-hack-roblox-in-1-min_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id//repository/hack-robux_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id//repository/wurst-hacked-client-112-2_GM479516143.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/roblox-noclip-hack-download-jailbreak_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id//repository/coin-master-hack-2021-free_GM406889139.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/free-coins-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/free-exploit-injector-roblox_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id//repository/win-free-robux_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/free-spins-coin-master-links-2021_GM406889139.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/how-to-get-minecraft-java-free_GM479516143.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/pokemon-go-free-codes_GM1094591345.pdfIn PDF document text
    • https://lib.unitri.ac.id//repository/how-to-download-minecraft-for-free-on-windows_GM479516143.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/roblox-how-to-get-a-free-name-change_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/free-roblox-balc-hair-catlog_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id//repository/master-hack-coin_GM406889139.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/haktuts-coin-master-free-spins-2021_GM406889139.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_off000031af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31AF 22332 bytes
SHA-256: db9aaa398b2229e9997f8f14a5ccea4601d248ed69fd904cae4bea36cc8bf9e0
font_01_sfnt_off00006344.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6344 18484 bytes
SHA-256: f4f9ad1f9ed7968e2344e2d1f3b165ae8c607e70d6a002aee90d609eb2aca606

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