Malicious PDF — malware analysis report

Static analysis result for SHA-256 c94e266dbd7d2fee…

MALICIOUS

PDF

34.7 KB Created: 2021-07-04 12:19:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: ba04aa4fca8369422a26b934e0d7997b SHA-1: 4e9cb9d1be8f7f645faa8464e3019c170b49ce4d SHA-256: c94e266dbd7d2fee4c7dfc8df07d6fa155623b0b81738c68439dbff474739eab
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/lazy-blocks-com-free-robux-game-hack PDF link annotation
    • https://lib.unitri.ac.id//repository/free-spins-coin-master-blogspot_GM406889139.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/robux-fun-online-hack_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id//repository/coin-master-free-spins-link-march-2021_GM406889139.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/hack-version-of-roblox_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/roblox-the-plaza-money-hack_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id//repository/free-robux-not-a-scam_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/roblox-supreme-t-shirt-free_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/how-to-get-free-pants-on-roblox-2021_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/roblox-lumber-tycoon-2-free-ticket_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id//repository/aternos-free-minecraft-server_GM479516143.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/get-free-robux-with-offers_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/free-robux-100-working-2021_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/free-robux-live-now_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/hack-robux-in-2021-easy_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id//repository/free-coin-master-gifts_GM406889139.pdfIn PDF document text
    • https://lib.unitri.ac.id//repository/free-online-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/free-vip-server-roblox_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/roblox-noclip-hack-2021_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/cheat-list-roblox_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id//repository/free-spins-and-coins-coin-master_GM406889139.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_off00002f40.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F40 22360 bytes
SHA-256: 3a443b4f4be92130941cdaa6ad2c8ca50731d6a48fb31491766973cf59a724f7
font_01_sfnt_off00006125.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6125 19480 bytes
SHA-256: 674b1dcba2a8a832e9ac54cd79118fcf3184e21139ebd106ccb57401b5375b65

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