Malicious PDF — malware analysis report

Static analysis result for SHA-256 85663b147bef11ac…

MALICIOUS

PDF

43.3 KB Created: 2021-06-03 08:19:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 77f9e816cb9a9d1a33bc59b555c610cd SHA-1: dbc6aa663fc3894b7e2fca423ccaee1e653f8d93 SHA-256: 85663b147bef11aca716044b6c016fe326313fe33f6a92dda212afb0b0adc5f1
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 0.9865

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 https://netcdn.online/app/406889139/hack-master-coin-game-hack PDF link annotation
    • https://digilib.stieama.ac.id/repository/free-800-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-accessories-roblox_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-game-hack-link_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-free-attack-hack_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-mod-apk_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-to-get-free-robux-youtube_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-spins-for-coin-master-ios_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/minecraft-for-chromebook-free_GM479516143.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-minecraft-mods_GM479516143.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-coin-master-androd-cheats-2021_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-robux-hack-us_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/is-minecraft-earth-free_GM479516143.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-free-spins-1701-20_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/minecraft-pe-hacks-2021_GM479516143.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/www-coinmaster-com_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-daily-free-spin-app_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/minecraft-xbox-one-edition-digital-code-free_GM479516143.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/https-iosgodscom-topic-20214coinmasterhack_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/lazyblocks-com-free-robux_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
stream_004_off0000508e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x508E 24276 bytes
SHA-256: 735e3808f82c10566f64b4284eff3ed33f417008bbd571c3e4747e4e5bf22cb9
font_01_sfnt_off00008809.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8809 17716 bytes
SHA-256: 99b3868d8620c4fe73bc357d7cd5eaee384af7838d617dcb8ad3f12085ac9d54

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