Malicious PDF — malware analysis report

Static analysis result for SHA-256 c134803a9634939a…

MALICIOUS

PDF

34.2 KB Created: 2021-07-05 07:45:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 6e79bbd7a7238b46f64b872cac84f1ef SHA-1: 11f625eaf82d18ca6aeab14cac4e466790571476 SHA-256: c134803a9634939a575d8f2753ed66a4ef38dc7443bf85b7adea38ef68027666
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

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/479516143/how-to-get-minecraft-java-for-free-game-hack PDF link annotation
    • http://lib.akpnbahtera.ac.id/repository/contrasenas-de-cuentas-de-roblox-free_GM431946152.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/roblox-zone-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/haktutsin-2021-09-coinmaster50freespinandcoinlinkhtml-m-1_GM406889139.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/pubg-uc-or-g-card_GM1330123889.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/how-to-get-hacks-on-minecraft_GM479516143.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/coin-master-free-spins-for-iphone_GM406889139.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/ars-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/www-roblox-robux_GM431946152.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/real-robux-codes_GM431946152.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/www-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/how-can-you-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/best-free-spins-link-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/free-coins-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/how-to-get-free-robux-gift-cards_GM431946152.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/best-free-hacked-client_GM479516143.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/coin-master-32-mod-hack-apk-download_GM406889139.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/coin-master-free-spins-generator_GM406889139.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/rxfastml-generator-2021-robux-hack_GM431946152.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/roblox-script-executor-free_GM431946152.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/claim-free-spins-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_off00003168.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3168 22244 bytes
SHA-256: be83aec92d933a61322821fdb239cd6e06bb1db72630fa2e4e2ac42b799e3622
font_01_sfnt_off000062c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62C3 18444 bytes
SHA-256: ee0fd3b8161b5983970ad4bc3604837358645b2154b845f85ded903745611adb

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