Malicious PDF — malware analysis report

Static analysis result for SHA-256 f815786c560d3480…

MALICIOUS

PDF

35.6 KB Created: 2021-06-28 01:15:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: b8a5bdf0dcf9b08079f1b4a4c0488bc0 SHA-1: 09518ec46e19219a743419a15c8a1d96b93bdfbe SHA-256: f815786c560d348003f1e414a046758bf8fea54b1a5fdd982ea026fb7bcc359f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure related to game hacks and free in-game currency, specifically targeting Roblox players. It contains multiple embedded URLs that lead to known malicious redirectors and potentially malicious content. The primary attack pattern involves tricking users into visiting these sites, likely to download further malware or engage in phishing. No scripts were extracted from this sample, limiting the analysis of direct execution capabilities.

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.co/app/431946152/roblox-shirt-maker-free-shipping-game-hack In PDF document text
    • http://lib.stimykpn.ac.id/repository/get-free-t-shirts-roblox_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/roblox-jailbreak-hacks-for-money_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/how-to-hack-in-roblox-games-to-get-gold_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/free-robux-promo-codes_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/how-to-hack-roblox-accounts-passwords_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/roblox-rtd-awakening-cheats_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/free-noclip-roblox_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/how-to-get-minecraft-realms-for-free_GM479516143.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/what-website-to-get-free-robux-ant_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/roblox-mad-city-money-cheat-codes_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/pokemon-go-free-lures_GM1094591345.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/roblox-comment-avoir-des-robux-gratuit-2021-sans-hack_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/free-spins-coin-master-links-app_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/roblox-hacking-cheat-engin_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/roblox-hack-unlimited-robux_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/apocalypse-rising-roblox-hack-2021_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/free-minecraft-thumbnails_GM479516143.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/coin-master-hack-2021-no-human-verification_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/free-roblox-redeem-codes-11-2-16_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_off000031d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31D7 22640 bytes
SHA-256: 444ba258f0f1a326d764ed13c8ed2308498f07481d2b3255543d62570c806998
font_01_sfnt_off0000649e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x649E 19584 bytes
SHA-256: 0ea53968fb3a5476dc4dbfd543d8a972ac317d61e949b5b6bc0b2e0ba72e4618

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