Malicious PDF — malware analysis report

Static analysis result for SHA-256 8320a19253082ff3…

MALICIOUS

PDF

34.9 KB Created: 2021-07-06 01:23:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 3bce9a576a2033405ee16c75a6c917d9 SHA-1: 10cdcbd2cbcc37d30cb9c3d4773729696359777a SHA-256: 8320a19253082ff381b573109638f6eb0b81e7ed2354664a72b1e57b12234335
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/431946152/free-roblox-pin-codes-game-hack PDF link annotation
    • http://lib.kesdammedan.ac.id/repository/haktuts-coin-master-free-spin-today_GM406889139.pdfIn PDF document text
    • http://lib.kesdammedan.ac.id/repository/coin-master-free-link-app_GM406889139.pdfIn PDF document text
    • http://lib.kesdammedan.ac.id/repository/necklace-roblox-free-shipping_GM431946152.pdfIn PDF document text
    • http://lib.kesdammedan.ac.id/repository/free-pet-food-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.kesdammedan.ac.id/repository/pastebin-free-robux-by-agarminer_GM431946152.pdfIn PDF document text
    • http://lib.kesdammedan.ac.id/repository/roblox-free-iron-man_GM431946152.pdfIn PDF document text
    • http://lib.kesdammedan.ac.id/repository/free-texture-packs-for-minecraft-pe_GM479516143.pdfIn PDF document text
    • http://lib.kesdammedan.ac.id/repository/roblox-free-group-shop_GM431946152.pdfIn PDF document text
    • http://lib.kesdammedan.ac.id/repository/hack-para-phantom-forces-roblox_GM431946152.pdfIn PDF document text
    • http://lib.kesdammedan.ac.id//repository/free-to-play-minecraft-servers_GM479516143.pdfIn PDF document text
    • http://lib.kesdammedan.ac.id//repository/hack-robux_GM431946152.pdfIn PDF document text
    • http://lib.kesdammedan.ac.id/repository/free-item-roblox-pastebin_GM431946152.pdfIn PDF document text
    • http://lib.kesdammedan.ac.id/repository/how-tom-get-games-free-roblox_GM431946152.pdfIn PDF document text
    • http://lib.kesdammedan.ac.id/repository/best-level--roblox-hacks-2021_GM431946152.pdfIn PDF document text
    • http://lib.kesdammedan.ac.id/repository/all-the-hacking-games-on-roblox_GM431946152.pdfIn PDF document text
    • http://lib.kesdammedan.ac.id//repository/blogspot-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.kesdammedan.ac.id//repository/how-to-get-minecraft-for-free-on-android_GM479516143.pdfIn PDF document text
    • http://lib.kesdammedan.ac.id/repository/increible-hack-robux-pastebincom-80b1sjzp-davidtoasa_GM431946152.pdfIn PDF document text
    • http://lib.kesdammedan.ac.id/repository/robux-free-site_GM431946152.pdfIn PDF document text
    • http://lib.kesdammedan.ac.id//repository/pokemon-go-free-event-box-april-2021_GM1094591345.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 6

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_off000030ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30AD 22620 bytes
SHA-256: ae43ec9be853c18390a24d1f3953cd69b7cc4dfefc3b42837c6afdcd99441549
font_01_sfnt_off00006375.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6375 19096 bytes
SHA-256: 4ea276f1d2d398dd256481d8d50d8281b25bd33319bb11349576f795fbfa1b33

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