Malicious PDF — malware analysis report

Static analysis result for SHA-256 1b7fea55d374b552…

MALICIOUS

PDF

35.5 KB Created: 2021-07-06 11:26:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: c760f49d7ee08fc31835484a830d9cc6 SHA-1: e96b798b28be3e37f23c3515a0bf80f8bdbec584 SHA-256: 1b7fea55d374b5523aad620a77635ed075e1e022aa734fb8b8574c4fd7881ab7
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-version-of-coin-master-apk-download-game-hack PDF link annotation
    • http://library.patria-artha.ac.id/repository/free-prankster-face-roblox_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/coin-master-free-spin-link-app_GM406889139.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/gain-free-bux-for-roblox-free-download-2021_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/hack-roblox-dll_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/gobux-me-free-robux_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/nopde-cheat-engine-64-roblox_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/pokemon-go-free-candy_GM1094591345.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/fnaf-free-roam-roblox_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/rbxoffers-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/roblox-hunger-games-cheats_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/free-robux-hacks-no-verification_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/roblox-studio-free-games_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/how-to-hack-an-abandoned-roblox-account_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/roblox-xyz-hack_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/roblox-how-to-change-your-name-for-free-2021_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/how-to-hack-roblox-account-step-by-step_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/bit-ly-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/free-spin-coin-master-twitter_GM406889139.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/free-robux-rbx-bc-claims-and-generators_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/the-coin-master-hack_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_off00003301.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3301 22928 bytes
SHA-256: 6ea21589162f828d65ad8fa2bef3d7d7ecf549520eb6e448e215793dea22e513
font_01_sfnt_off00006653.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6653 18892 bytes
SHA-256: 0e76e7b24138cfa4d614eb6f056d3897d5c0eaba8dbb3d21cdf35042e4a6a81e

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