Malicious PDF — malware analysis report

Static analysis result for SHA-256 72913b450797d058…

MALICIOUS

PDF

34.1 KB Created: 2021-06-18 17:22:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 4f0f021f9607158bff52f0ffc694db27 SHA-1: c0e6ba069755c87b70dbdb5956ae43fb728f5fe1 SHA-256: 72913b450797d0583baa3b082951851db1829342c570393f9cc047c3f4fde659
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/roblox-pastbin-hack-game-hack PDF link annotation
    • http://torkelson.se/images/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://torkelson.se/images/haktuts-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://torkelson.se/images/how-to-hack-roblox-accounts-2021-mac_GM431946152.pdfIn PDF document text
    • http://torkelson.se/images/free-tiktok-likes-75_GM835599320.pdfIn PDF document text
    • http://torkelson.se/images/free-coins-coin-master-no-human-verification_GM406889139.pdfIn PDF document text
    • http://torkelson.se/images/roblox-bandit-hack_GM431946152.pdfIn PDF document text
    • http://torkelson.se/images/cheat-engine-speed-hack-roblox-2021_GM431946152.pdfIn PDF document text
    • http://torkelson.se/images/minecraft-bedrock-edition-free_GM479516143.pdfIn PDF document text
    • http://torkelson.se/images/robloxmatchcom-free-robux_GM431946152.pdfIn PDF document text
    • http://torkelson.se/images/www-robux-redeem_GM431946152.pdfIn PDF document text
    • http://torkelson.se/images/give-me-free-robux_GM431946152.pdfIn PDF document text
    • http://torkelson.se/images/how-to-get-free-robux-easy_GM431946152.pdfIn PDF document text
    • http://torkelson.se/images/zombie-illuminati-hacks-roblox_GM431946152.pdfIn PDF document text
    • http://torkelson.se/images/free-robux-redeem-card-codes-2021_GM431946152.pdfIn PDF document text
    • http://torkelson.se/images/legit-coin-master-hack-without-verification_GM406889139.pdfIn PDF document text
    • http://torkelson.se/images/coin-master-free-spins-cheat-codes_GM406889139.pdfIn PDF document text
    • http://torkelson.se/images/coin-master-free-cards_GM406889139.pdfIn PDF document text
    • http://torkelson.se/images/arcane-legacy-roblox-hack_GM431946152.pdfIn PDF document text
    • http://torkelson.se/images/coin-master-free-spin-and-coin_GM406889139.pdfIn PDF document text
    • http://torkelson.se/images/claimrbx-free-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 3

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_off00002e75.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E75 22544 bytes
SHA-256: b40478de1ab0bb494b27f575d7a544e664a6c481613a37a3896b87259ab9ba6d
font_01_sfnt_off000060b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60B1 18848 bytes
SHA-256: 1099652f5c500ad8bf1013a072cf6f8f2837c13f6f8786d7ee6a56a2803093c5

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