Malicious PDF — malware analysis report

Static analysis result for SHA-256 68c3956cf114bac2…

MALICIOUS

PDF

35.1 KB Created: 2021-06-27 13:25:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-24
MD5: 31b9522387f706b79d5523a2d7a7f153 SHA-1: bfff08eba7be377c4b3f2b9145f0cd7d899dd846 SHA-256: 68c3956cf114bac23f3dd9e5da8aeaa9c04b2ab466f7084641c8ac9639a504a7
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure related to game hacks and generators to entice users to click on embedded links. The primary link redirects to known malicious infrastructure, indicating a phishing or malware distribution attempt. While no scripts were directly extracted, the PDF structure and embedded URLs strongly suggest a malicious intent to redirect users to potentially harmful content or further stages of an attack.

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/how-to-hack-roblox-account-2021-easy-game-hack In PDF document text
    • https://www.italisaitaly.com/uploaded_files/userfiles/files/free-coins-for-planet-master-game_GM406889139.pdfIn PDF document text
    • https://www.italisaitaly.com/uploaded_files/userfiles/files/is-there-any-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.italisaitaly.com/uploaded_files/userfiles/files/coin-master-free-spins-daily-2021_GM406889139.pdfIn PDF document text
    • https://www.italisaitaly.com/uploaded_files/userfiles/files/coin-master-hack-mod-apk-download_GM406889139.pdfIn PDF document text
    • https://www.italisaitaly.com/uploaded_files/userfiles/files/how-to-get-a-free-dom-crown-roblox_GM431946152.pdfIn PDF document text
    • https://www.italisaitaly.com/uploaded_files/userfiles/files/coin-master-daily-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • https://www.italisaitaly.com/uploaded_files/userfiles/files/coin-master-rewards-free-spins_GM406889139.pdfIn PDF document text
    • https://www.italisaitaly.com/uploaded_files/userfiles/files/coin-master-hack-no-verification_GM406889139.pdfIn PDF document text
    • https://www.italisaitaly.com/uploaded_files/userfiles/files/all-offsale-free-items-roblox_GM431946152.pdfIn PDF document text
    • https://www.italisaitaly.com/uploaded_files/userfiles/files/how-to-get-free-outfits-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.italisaitaly.com/uploaded_files/userfiles/files/best-minecraft-hacked-client-2021_GM479516143.pdfIn PDF document text
    • https://www.italisaitaly.com/uploaded_files/userfiles/files/roblox-free-hair-girl_GM431946152.pdfIn PDF document text
    • https://www.italisaitaly.com/uploaded_files/userfiles/files/royal-high-school-roblox-how-to-gwet-free-mony_GM431946152.pdfIn PDF document text
    • https://www.italisaitaly.com/uploaded_files/userfiles/files/roblox-hack-unlimited-money_GM431946152.pdfIn PDF document text
    • https://www.italisaitaly.com/uploaded_files/userfiles/files/roblox-no-download-hack_GM431946152.pdfIn PDF document text
    • https://www.italisaitaly.com/uploaded_files/userfiles/files/minecraft-rtx-download-free_GM479516143.pdfIn PDF document text
    • https://www.italisaitaly.com/uploaded_files/userfiles/files/free-robux-xbox-1_GM431946152.pdfIn PDF document text
    • https://www.italisaitaly.com/uploaded_files/userfiles/files/hack-spin-coin-master_GM406889139.pdfIn PDF document text
    • https://www.italisaitaly.com/uploaded_files/userfiles/files/free-minecraft-java-code_GM479516143.pdfIn PDF document text
    • https://www.italisaitaly.com/uploaded_files/userfiles/files/roblox-people-girl_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_off000030bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30BD 22240 bytes
SHA-256: d48358e2a0a917650dff90df42faebd33e448be16af81e50d19baedbed25ba4d
font_01_sfnt_off000061f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61F4 19644 bytes
SHA-256: 3d41f6edb9e91bfaf037677169ef0a820e641f25da3ff1e44b40a5aa48cbcec5

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