Malicious PDF — malware analysis report

Static analysis result for SHA-256 f585fb00693b92d6…

MALICIOUS

PDF

34.3 KB Created: 2021-07-04 21:25:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 2dd8e338ca6bcbbfffb3b5be63d989f1 SHA-1: 6d4567a17fb883acd0890108286bc8145b646e3d SHA-256: f585fb00693b92d6ad7c46ba9268b37c0886d3b2481c0ef50c8fcc788a964749
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to a redirector URL, which is associated with malicious activity and lures users with promises of game hacks. The ML classifier also strongly indicated maliciousness. The document's content and embedded URLs suggest a phishing or scam attempt to trick users into visiting potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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-app-game-hack In PDF document text
    • http://library.apsidoarjo.ac.id/repository/how-to-hack-people-roblox-real_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/claim-free-robux-roblox-rewards_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/free-robux-pastebin_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/free-robux-giveaway-access-code_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/hackaron-com-roblox_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/free-robux-scam-gui_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/coin-master-reward-link_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/slaying-simulator-roblox-no-cheat_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/robux-fun-hack_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/how-to-get-a-free-boombox-on-roblox-high-school_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/did-roblox-remove-the-opportunity-to-sell-models-for-free_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/how-to-wins-free-robux_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/boku-no-roblox-hack_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/how-to-get-free-robux-promo-codes-2021-august_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/roblox-ro-ghoul-hack_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/do-you-want-free-robux-get-unlimited-robux-generator_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/how-to-get-hacks-in-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/free-pants-on-roblox_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/cheats-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/you-to-get-free-robux-no-hack_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
font_00_sfnt_off000030f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30F6 22004 bytes
SHA-256: 4d682a6022757a4ffcc2ea61f96d53b41634cc2e95e796dece174069261a379b
font_01_sfnt_off0000617a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x617A 18824 bytes
SHA-256: b2af68dfc91fa7c190a325d3e55fd6efe80ce1b1fca349ea9ce66908a7d99f32

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