Malicious PDF — malware analysis report

Static analysis result for SHA-256 89958c1f907bddc2…

MALICIOUS

PDF

34.2 KB Created: 2021-07-05 22:09:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 4edae4400d4760c88df66f2e03819554 SHA-1: df729a94e6065eb1af2282c677030d46cb8434a4 SHA-256: 89958c1f907bddc27ebc5812fe9e21a62c89a1cb3f6dc98fb2565d0b92cb4210
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/406889139/hack-coin-master-apk-32-game-hack PDF link annotation
    • http://library.atim.ac.id/repository/cm-spin-link_GM406889139.pdfIn PDF document text
    • http://library.atim.ac.id/repository/is-hacking-a-roblox-game-illegal_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/pokemon-go-free-zangoose_GM1094591345.pdfIn PDF document text
    • http://library.atim.ac.id/repository/free-roblox-followers_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/how-to-reach-hacks-in-sf-roblox-2021_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/roblox-promo-codes-for-robux-2021-no-hacks_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/free-robux-with-credit-card_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/how-have-free-admin-in-roblox_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/hack-robux-thegatogaming_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/nonsense-diamond-cheat-roblox_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/free-game-card-roblox-codes_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/free-robux-codes-2021-mobile_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/roblox-adopt-me-money-hack-2021_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/free-robux-without-a-verifacation_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/roblox-robux-hack-cheat-engine-64_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/minecraft-free-download-pc_GM479516143.pdfIn PDF document text
    • http://library.atim.ac.id/repository/island-life-paradise-hack-script-roblox_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/bypass-chat-hack-roblox_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_002_off00002fa2.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2FA2 22648 bytes
SHA-256: 878883a5242aafb12357a7146d4b22f8489aba4f929d8aabbefc404d9372b54b
font_01_sfnt_off00006230.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6230 18480 bytes
SHA-256: 82043cd03fcb91cdae9089e060db25798972bbdf1481bdd3256787c2d2233951

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