Malicious PDF — malware analysis report

Static analysis result for SHA-256 842696a4f7049651…

MALICIOUS

PDF

42.2 KB Created: 2021-05-14 21:05:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: f8a48b7abc31bfc263a388f32eb16e62 SHA-1: 26791906e5a7c8bdf445c954cb04ba5f5650ac59 SHA-256: 842696a4f70496514ab01297c7180291fd1bfd9acb2ae8d97c9d0248405d5382
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 0.9971

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.xyz/app/406889139/free-spins-for-coin-master-app-game-hack PDF link annotation
    • http://hakuna.co.za/images/robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://hakuna.co.za/images/free-minecraft-account-list_GM479516143.pdfIn PDF document text
    • http://hakuna.co.za/images/roblox-script-hacks_GM431946152.pdfIn PDF document text
    • http://hakuna.co.za/images/roblox-fly-hack_GM431946152.pdfIn PDF document text
    • http://hakuna.co.za/images/is-minecraft-free-on-xbox_GM479516143.pdfIn PDF document text
    • http://hakuna.co.za/images/links-to-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://hakuna.co.za/images/get-free-spins-link-in-coin-master_GM406889139.pdfIn PDF document text
    • http://hakuna.co.za/images/oprewards-free-robux_GM431946152.pdfIn PDF document text
    • http://hakuna.co.za/images/blox-fish-free-robux_GM431946152.pdfIn PDF document text
    • http://hakuna.co.za/images/coin-master-gifts_GM406889139.pdfIn PDF document text
    • http://hakuna.co.za/images/how-to-get-infinite-robux_GM431946152.pdfIn PDF document text
    • http://hakuna.co.za/images/free-spin-today-coin-master_GM406889139.pdfIn PDF document text
    • http://hakuna.co.za/images/roblox-free-clothes-hack_GM431946152.pdfIn PDF document text
    • http://hakuna.co.za/images/wurst-112_GM479516143.pdfIn PDF document text
    • http://hakuna.co.za/images/how-to-make-a-group-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://hakuna.co.za/images/free-coins-for-coin-master-blogger_GM406889139.pdfIn PDF document text
    • http://hakuna.co.za/images/can-you-still-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • http://hakuna.co.za/images/buxblast-com-robux_GM431946152.pdfIn PDF document text
    • http://hakuna.co.za/images/coin-master-hack-twitter_GM406889139.pdfIn PDF document text
    • http://hakuna.co.za/images/free-robux-generator_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_003_off00004690.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4690 26460 bytes
SHA-256: 0fffa5090dcab463a5299180d4af92bb2d749db5322c0eccc1c97226dd1392e9
font_01_sfnt_off000083aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83AA 17884 bytes
SHA-256: c0e07e045f0496ba68af439e810d5bb13e23b0d850ef9426c095223eaa712aa7

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