Malicious PDF — malware analysis report

Static analysis result for SHA-256 a06c7d69d7db2444…

MALICIOUS

PDF

33.5 KB Created: 2021-07-06 18:02:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: ad3075972ff5c110cc8a7ed1a19515a5 SHA-1: bb94a0441b9f3efd44d7cae427b99b086c1e84c5 SHA-256: a06c7d69d7db24449a09f96c191da5ca033bf747563f3991a082695515c6667f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The ML classifier strongly indicates maliciousness, and the document body contains numerous URLs related to game hacks and free in-game currency, suggesting a lure for users to download potentially unwanted or malicious software. The presence of embedded URLs further supports this malicious intent, likely leading to the download of a second-stage payload.

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/androeed-ru-minecraft-game-hack In PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-robux-generator-2021-gamingthix_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-roblox-card-codes-december-2021_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/oginject-co_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/daily-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/default-fortnite-roblox-tshirt-free_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/games-like-bloxbutg-in-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-dominus-roblox-avatar_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/roblox-pet-simulator-how-to-get-free-pets_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/boost9-com-roblox-hack_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/robux-generator-no-survey_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-robux-codes-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-robux-without-verification-2021_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-robux-on-iphone_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/roblox-spieler-hacken_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/robuxlove-net-free-robux_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/roblox-free-hair-girl_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/roblox-hack-bloob_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/how-to-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/how-to-get-wall-hacks-in-roblox_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/coin-master-free-spins-and-coins-daily_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_off00002f7f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F7F 22228 bytes
SHA-256: c41c04ad154229d69644844c0337daddf836f50e5a582821b5db18e2c029c61d
font_01_sfnt_off0000603e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x603E 18312 bytes
SHA-256: 554df31dd6014f2b387a6701708e94691a9c19ddc3ec2bf812b5486eccddfcaf

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