Malicious PDF — malware analysis report

Static analysis result for SHA-256 a0c26e8ff8259786…

MALICIOUS

PDF

34.4 KB Created: 2021-07-06 15:49:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: b883f286e7734a0fe1fa2ec76871188e SHA-1: 3a8c9dfed9cbbbb44f5b5396a1611210d33755c2 SHA-256: a0c26e8ff82597863569b1a5c2ac6d98572b1e294f70b914f93a1eeb57e58d3b
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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/835599320/tiktok-fans-free-game-hack PDF link annotation
    • http://library.gkigadingserpong.org/repository/afk-hacker-roblox_GM431946152.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/the-hack-spot-how-to-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/robux-generator-2021_GM431946152.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/haktuts-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://www.library.gkigadingserpong.org/repository/coin-master-unlimited-spin-link_GM406889139.pdfIn PDF document text
    • http://www.library.gkigadingserpong.org/repository/minecraft-hack-client-download_GM479516143.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/coin-master-free-pin_GM406889139.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/free-roblox-accounts-with-robux-that-work-not-banned-2021_GM431946152.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/how-to-get-free-robux-without-verification_GM431946152.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/free-roblox-injector_GM431946152.pdfIn PDF document text
    • http://www.library.gkigadingserpong.org/repository/coin-master-free-spin-whatsapp-group_GM406889139.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/roblox-hacked-com-2021_GM431946152.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/free-robux-quiz_GM431946152.pdfIn PDF document text
    • http://www.library.gkigadingserpong.org/repository/coin-master-free-spin-now_GM406889139.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/roblox-free-camera-not-working_GM431946152.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/robux-prices_GM431946152.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/how-to-get-free-robux-in-notepad_GM431946152.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/coin-master-hack-here_GM406889139.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/20219-walk-speed-roblox-cheat_GM431946152.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/cr7-hack-roblox-2021_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000032d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32D0 22372 bytes
SHA-256: bbf921d4d5c4f60e9b27a62b613c51256bf622f2ce0b6eb6cd73c7a94af815b3
font_01_sfnt_off0000649f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x649F 17972 bytes
SHA-256: 635089bb0a2dda3b90a25983121ccb3da5acc2e65406b6e599c0c265bf0918e0

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