Malicious PDF — malware analysis report

Static analysis result for SHA-256 130aef535d56d244…

MALICIOUS

PDF

34.5 KB Created: 2021-06-19 10:13:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 223640348a2fd365e149dedff6a0fce3 SHA-1: 9d6004ac3f8940a3551b7f9898215e432af4a583 SHA-256: 130aef535d56d244b1d67390b7f1fb06aa9f95eb05b4c762e659743213024f4e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains links to a known malicious redirector infrastructure, specifically advertising 'free generator / game hack' content. The document body and embedded URLs suggest a lure for game-related cheats or in-game currency. The primary attack pattern involves directing the user to malicious sites that likely host further malware or phishing content.

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/479516143/how-can-i-get-minecraft-for-free-game-hack In PDF document text
    • https://encounternepal.com/userfiles/files/free-robux-app-real_GM431946152.pdfIn PDF document text
    • https://encounternepal.com/userfiles/files/how-to-sue-roblox_GM431946152.pdfIn PDF document text
    • https://encounternepal.com/userfiles/files/mobihack-net-roblox-hack_GM431946152.pdfIn PDF document text
    • https://encounternepal.com/userfiles/files/orewards-com-free-robux_GM431946152.pdfIn PDF document text
    • https://encounternepal.com/userfiles/files/how-to-get-free-robux-without-paying_GM431946152.pdfIn PDF document text
    • https://encounternepal.com/userfiles/files/free-robux-without-verification-2021_GM431946152.pdfIn PDF document text
    • https://encounternepal.com/userfiles/files/minecraft-pe-free-ios_GM479516143.pdfIn PDF document text
    • https://encounternepal.com/userfiles/files/roblox-but_GM431946152.pdfIn PDF document text
    • https://encounternepal.com/userfiles/files/free-spins-on-coin-master-cheat_GM406889139.pdfIn PDF document text
    • https://encounternepal.com/userfiles/files/download-hack-coin-master_GM406889139.pdfIn PDF document text
    • https://encounternepal.com/userfiles/files/ac-market-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://encounternepal.com/userfiles/files/coin-master-free-spins-and-coins-link-blogspot_GM406889139.pdfIn PDF document text
    • https://encounternepal.com/userfiles/files/static-moonactive-net-rewards-2021_GM406889139.pdfIn PDF document text
    • https://encounternepal.com/userfiles/files/coin-master-free-coins-link-2021_GM406889139.pdfIn PDF document text
    • https://encounternepal.com/userfiles/files/robux-free-robux_GM431946152.pdfIn PDF document text
    • https://encounternepal.com/userfiles/files/coin-master-computer-hack_GM406889139.pdfIn PDF document text
    • https://encounternepal.com/userfiles/files/free-robux-come_GM431946152.pdfIn PDF document text
    • https://encounternepal.com/userfiles/files/spin-coin-master_GM406889139.pdfIn PDF document text
    • https://encounternepal.com/userfiles/files/roblox-fun-robux_GM431946152.pdfIn PDF document text
    • https://encounternepal.com/userfiles/files/best-minecraft-hacked-client_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_off000034f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x34F3 22000 bytes
SHA-256: 0ac7482803d41a3de0d5e1aa8bd5219dbcdfc48c36ff434045afba1738ca145e
font_01_sfnt_off000064c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64C3 18164 bytes
SHA-256: 36a344aed73ba195317bf2b716a0c6b93324dc902034352b776dceb9555a192f

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