Malicious PDF — malware analysis report

Static analysis result for SHA-256 f02db076f1dbea0e…

MALICIOUS

PDF

34.6 KB Created: 2021-06-30 05:37:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-24
MD5: e6da1f2603e76945826bd05960110c9e SHA-1: 4a14b9573c9cc0ff762741f96b2df19d2c06a817 SHA-256: f02db076f1dbea0e2087881062ee96f7a40a804d68e3c8987ac3a6e67e82c825
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure of free game hacks and currency to trick users into clicking malicious links. The primary link directs to a known malicious redirector infrastructure, which in turn hosts multiple other PDFs with similar lures. The ML classifier strongly indicated maliciousness, and the document body contains numerous URLs pointing to potentially harmful content.

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-noob-shirt-free-game-hack In PDF document text
    • http://perpus.i2s-learning.com//repository/freespinandcoin_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/roblox-jailbreajk-new-hack_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/give-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/download-cheat-roblox-lumber-tycoon-2-money_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/free-roblox-premium_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/hack-roblox-blob-simulator_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/hack-coin-master-no-verification_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/coin-master-free-gold-cards-link-2021ee-spins_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/how-to-get-robux-fast_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/free-roblox-clothes-templates_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/how-to-hack-roblox-to-get-robux_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/cheats-for-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/minecraft-free-download-iphone_GM479516143.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/codes-that-people-think-your-a-hacker-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/roblox-robux-generator-tool_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/coin-master-free-spins-apk-2021_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/roblox-free-to-play-game_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/free-roblox-accounts-2021-with-robux_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/minecraft-windows-10-free_GM479516143.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/godmode-hacks-roblox_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_off00002fe4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FE4 22528 bytes
SHA-256: fb4f763a33da8baef0a2423f79ac79488c73595e8bd2f77d5d4b10b5f1a4cea9
font_01_sfnt_off00006246.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6246 19040 bytes
SHA-256: bf55786138c606e082aa0d90b03b357294dcaa72eb3f5ac55eb24d53eb8e4ca5

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