Malicious PDF — malware analysis report

Static analysis result for SHA-256 896ae9fbdaf33f41…

MALICIOUS

PDF

33.6 KB Created: 2021-07-06 14:44:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: ce25f8afc63de2e988cfc5a07180a2c8 SHA-1: c4e0374358520451c8f3a45e5bbd0ade5f89f653 SHA-256: 896ae9fbdaf33f41f841b9430834a32e232a5ca69640a7636c09157e045ee7fa
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a critical heuristic firing for linking to a known malicious redirector, specifically advertising a "Coin Master Hack". The document body reinforces this by displaying the malicious URL and related game hack lures. This indicates a social engineering attempt to direct users to potentially harmful websites.

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-hack-no-survey-or-verification-game-hack In PDF document text
    • https://library.sman1berau.sch.id/repository/get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/free-spins-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/cheat-roblox-prison-brak_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/roblox-moderators_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/minecraft-dungeons-free-download-pc_GM479516143.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/pubg-uc-100k_GM1330123889.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/download-hacked-games-com-coin-master_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/minecraft-diamond-finder-hack_GM479516143.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/free-ways-to-earn-robux_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/how-can-you-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/cool-free-minecraft-skins_GM479516143.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/roblox-mobile-hacks-4-free_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/roblox-weird_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/how-to-get-minecraft-for-free-on-iphone_GM479516143.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/hackear-coin-master_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/how-to-get-free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/free-robux-mobile_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/free-minecraft-website_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_off00002e9b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E9B 22140 bytes
SHA-256: b5f26e15a1a1543c6d77e9da0ffcd242dcc3c1c619d35f0fb40cb04a728bfe61
font_01_sfnt_off00005fa0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FA0 18572 bytes
SHA-256: 3714ff820157558559e7d0653201827560acd429746c0784f855fbf1e368d380

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