Malicious PDF — malware analysis report

Static analysis result for SHA-256 be7441a8f0a37ab4…

MALICIOUS

PDF

33.4 KB Created: 2021-07-04 08:05:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 06f2191d9b5dffa96ca038fbcfa1ee67 SHA-1: a44d63684985869efc4d3551ccaca6000ec89f0a SHA-256: be7441a8f0a37ab4765acc6d0f5eaf8ce641c388104509ba033c98f72a7bdce2
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains a direct link to a known malicious redirector, disguised as a game hack generator. This lure is intended to trick users into navigating to malicious infrastructure, likely to download further malware or engage in phishing. The ML classifier strongly supports the malicious nature of this PDF.

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/479516143/minecraft-free-download-mac-game-hack In PDF document text
    • https://lib.unitri.ac.id/repository/roblox-mod-robux-free_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/get-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/roblox-build-a-boat-for-treasure-hacks_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/how-to-play-roblox-for-free-on-computer_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/roblox-prison-life-hacking-why-is-this-even-a-thing_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/robux-only_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id//repository/coin-master-hack-online_GM406889139.pdfIn PDF document text
    • https://lib.unitri.ac.id//repository/how-to-get-to-village-3-in-coin-master_GM406889139.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/roblox-re_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/how-to-get-free-pants-on-roblox-2021_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/coin-master-free-coin-hack_GM406889139.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/how-to-get-minecraft-for-free-on-xbox_GM479516143.pdfIn PDF document text
    • https://lib.unitri.ac.id//repository/free-minecraft-maps-pe_GM479516143.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/https-iosgodscom-topic-20218flipmastercoinshack_GM406889139.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/how-to-get-your-robux-back-without-hacking-or-buying_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id//repository/freerobuxhack-us_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/how-can-you-get-free-robuxs_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/roblox-old-avatar_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/how-to-hack-in-roblox-jailbreak-on-ipad_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/como-descargar-hacks-btools-para-jailbreak-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_off00002e6b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E6B 21980 bytes
SHA-256: 7ccd85b4f940f93d75bbbd37ea0adaac06daa366aa5df6fc37a446c043278e5a
font_01_sfnt_off00005ef4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EF4 18576 bytes
SHA-256: 06b239d8a28b1d5597486ea199a20c5d387b716390632991d2cfb7c0688950f5

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