Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd5e67b086211209…

MALICIOUS

PDF

40.6 KB Created: 2021-05-12 17:30:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 918abfb8c2ee72ad9780c5803e0500aa SHA-1: 957d809517b35c2922bb356919e4fcee2799fa5b SHA-256: bd5e67b08621120962239446399e918cd6b4ccc004bd31346b6f462a858160df
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirectors and game hack lures, such as 'Coin Master Free Spins Only'. The primary goal appears to be directing users to potentially malicious websites that may host further malware or phishing content. No scripts were extracted, but the document's structure and embedded URLs strongly indicate a phishing or redirection attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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 https://netcdn.xyz/app/406889139/coin-master-free-spins-only-game-hack In PDF document text
    • https://raduzhnyj.od.ua/images/free-robux-no-verification-needed_GM431946152.pdfIn PDF document text
    • https://raduzhnyj.od.ua/images/mcpe-client_GM479516143.pdfIn PDF document text
    • https://raduzhnyj.od.ua/images/how-to-get-free-robux-easy-hack_GM431946152.pdfIn PDF document text
    • https://raduzhnyj.od.ua/images/ways-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://raduzhnyj.od.ua/images/mobihack-roblox-hack_GM431946152.pdfIn PDF document text
    • https://raduzhnyj.od.ua/images/coin-master-hack-app-2021-download_GM406889139.pdfIn PDF document text
    • https://raduzhnyj.od.ua/images/coin-master-hack-ios-download_GM406889139.pdfIn PDF document text
    • https://raduzhnyj.od.ua/images/pig-master-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://raduzhnyj.od.ua/images/free-robux-instantly_GM431946152.pdfIn PDF document text
    • https://raduzhnyj.od.ua/images/wwwcoin-master-hack-apk_GM406889139.pdfIn PDF document text
    • https://raduzhnyj.od.ua/images/how-to-get-free-minecraft-alts_GM479516143.pdfIn PDF document text
    • https://raduzhnyj.od.ua/images/free-robux-wheel_GM431946152.pdfIn PDF document text
    • https://raduzhnyj.od.ua/images/coin-master-hack-2021-iphone_GM406889139.pdfIn PDF document text
    • https://raduzhnyj.od.ua/images/how-to-get-free-minecraft-skins_GM479516143.pdfIn PDF document text
    • https://raduzhnyj.od.ua/images/how-do-you-get-free-food-on-coin-master_GM406889139.pdfIn PDF document text
    • https://raduzhnyj.od.ua/images/free-robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • https://raduzhnyj.od.ua/images/coin-master-free-2021-spin-link_GM406889139.pdfIn PDF document text
    • https://raduzhnyj.od.ua/images/free-downloads-for-coin-master-daily-rewards_GM406889139.pdfIn PDF document text
    • https://raduzhnyj.od.ua/images/free-robux-com-2021_GM431946152.pdfIn PDF document text
    • https://raduzhnyj.od.ua/images/free-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
stream_003_off000044a5.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x44A5 24532 bytes
SHA-256: c326ce0a34fe2f2cd76870e4db5d06709450f6318a4a0d66c726cd368b7cf886
font_01_sfnt_off00007cb1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CB1 18140 bytes
SHA-256: e8323280cfa25f0840c1e0ad6f99419943ef2c7379aa1851e8b4a739432d5c3e

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