Malicious PDF — malware analysis report

Static analysis result for SHA-256 025e936d798a6c60…

MALICIOUS

PDF

35.6 KB Created: 2021-06-30 13:53:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 79fe5b71d3c709b328d209920f6a63db SHA-1: 76d5ea3a514a5e434506b7d967c229b27b653374 SHA-256: 025e936d798a6c60b4c1c1b752de6e12b0ddf3fc309cae76fe2eb292fd9e6d6a
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.co/app/431946152/free-robux-website-without-human-verification-game-hack PDF link annotation
    • http://pustaka.bbppketindan.info/repository/roblox-jump-hack-code_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/how-to-fly-in-roblox-with-cheat-engine-64_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/roblox-jailbreak-unlimited-money-hack-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/i-hacker-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/minecraft-free-download-linux_GM479516143.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/free-minecraft-skins-pe_GM479516143.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/coin-master-hack-apk-ios_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/free-robux-download-pc_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/roblox-output-hack_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/free-roblox-templates_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/hack-desert-treasure-quest-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/robux-generator-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/coin-master-free-spins-apk_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/free-robux-with-no-survey_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/get-free-spins-coin-master-link_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/coin-master-free-coins-link-2021-today_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/free-bling-bling-card-coin-master_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/hacks-de-roblox-para-tener-infinitos-robux-gratis_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/cmaster-club-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/roblox-free-followers_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003079.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3079 23112 bytes
SHA-256: dd90c45cd80121b1ada2fe8f2ae53a20bcae126819c915e20256573026b675d3
font_01_sfnt_off00006467.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6467 19700 bytes
SHA-256: 7216a7a5914f0e522931574dd0169ec6d7d97ce76ca7e4125118d3e5e57538de

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