Malicious PDF — malware analysis report

Static analysis result for SHA-256 ffac9f8f8dc753c7…

MALICIOUS

PDF

33.6 KB Created: 2021-07-09 22:58:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-24
MD5: feb7531e00e2e2c5eed0eb36ee19467c SHA-1: eef8ec6095e023989bacbd2422b1df7d37ff1208 SHA-256: ffac9f8f8dc753c75f7370bd85e65c4ea701c44da57e12246ee3723a70e1f10d
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure related to free game hacks and generators, directing users to malicious redirector infrastructure. The primary link, http://netcdn.tw/app/431946152/robux-com-free-game-hack, is associated with known malicious redirectors. The document's structure and embedded URLs suggest a phishing or scam campaign aimed at tricking users into visiting potentially harmful sites.

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.tw/app/431946152/robux-com-free-game-hack In PDF document text
    • http://xenonsvjetla.com/files/free-robux-stream_GM431946152.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/coin-master-card-collection-hack-2021_GM406889139.pdfIn PDF document text
    • http://xenonsvjetla.com/files/how-to-change-your-username-in-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/coin-master-mod-apk-unlimited-spin-download-free-full-version_GM406889139.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/minecraft-auto-miner-hack_GM479516143.pdfIn PDF document text
    • http://xenonsvjetla.com/files/rbx-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/roblox-toy-codes-for-free_GM431946152.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/roblox-apk-hack-ios_GM431946152.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/free-coin-spin-daily-link-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://xenonsvjetla.com/files/try-minecraft-free_GM479516143.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/how-to-hack-for-2021-robux_GM431946152.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/roblox-generator-free-dowload_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/how-to-get-100-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/best-roblox-jailbreak-hack-2021_GM431946152.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/coin-master-heaven-free-spins_GM406889139.pdfIn PDF document text
    • http://xenonsvjetla.com/files/how-to-make-a-minecraft-server-for-free-java_GM479516143.pdfIn PDF document text
    • http://xenonsvjetla.com/files/master-coin-free-spin-daily_GM406889139.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/lumber-tycoon-2-hacked-roblox_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/how-to-get-free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/get-free-coins-for-coin-master_GM406889139.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_off00002f8a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F8A 21424 bytes
SHA-256: f24d047a50ac5670cacf60ea5a81133b675ee9cc24519e9174893bc36357ac59
font_01_sfnt_off00005e65.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E65 18976 bytes
SHA-256: 27896acad5ca474033774e3721745fbaf6546dbb33b60a4a93bb974a81ff43ff

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