Malicious PDF — malware analysis report

Static analysis result for SHA-256 78080e6ca8562e3a…

MALICIOUS

PDF

33.2 KB Created: 2021-07-03 15:17:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-22
MD5: 7706406f1bf3cbb0a11f9da4bb96d191 SHA-1: bd876b679c507310b7ba5b33871c5080b41e28bd SHA-256: 78080e6ca8562e3a7efa7d6e1892cd1000cdfdbc6ad2273fc4322133d87836fa
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to external websites, including a known malicious redirector, that promise game hacks and free in-game currency. These links are designed to lure users to potentially malicious sites, likely for further exploitation or malware delivery. The document's content and embedded URLs strongly suggest a phishing or scamming attempt.

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/479516143/minecraft-hack-client-18-9-game-hack In PDF document text
    • https://adoz.cz/ckfinder/userfiles/files/roblox-2021-cheat-engine_GM431946152.pdfIn PDF document text
    • https://adoz.cz/ckfinder/userfiles/files/free-robux-hacks-no-verification_GM431946152.pdfIn PDF document text
    • https://adoz.cz/ckfinder/userfiles/files/pasos-para-hackear-coins-master_GM406889139.pdfIn PDF document text
    • https://adoz.cz/ckfinder/userfiles/files/how-to-get-free-girl-hair-on-roblox_GM431946152.pdfIn PDF document text
    • https://adoz.cz/ckfinder/userfiles/files/coin-master-hack-without-verification_GM406889139.pdfIn PDF document text
    • https://adoz.cz/ckfinder/userfiles/files/free-robux-gift-card_GM431946152.pdfIn PDF document text
    • https://adoz.cz/ckfinder/userfiles/files/coin-master-hack-link-2021_GM406889139.pdfIn PDF document text
    • https://adoz.cz/ckfinder/userfiles/files/100-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://adoz.cz/ckfinder/userfiles/files/coin-master-hack-online-without-human-verification_GM406889139.pdfIn PDF document text
    • https://adoz.cz/ckfinder/userfiles/files/real-roblox_GM431946152.pdfIn PDF document text
    • https://adoz.cz/ckfinder/userfiles/files/roblox-beyond-hack-script_GM431946152.pdfIn PDF document text
    • https://adoz.cz/ckfinder/userfiles/files/roblox-free-draw-how-to-draw-a-vagina_GM431946152.pdfIn PDF document text
    • https://adoz.cz/ckfinder/userfiles/files/free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://adoz.cz/ckfinder/userfiles/files/roblox-hack-sin-verificacion-humana_GM431946152.pdfIn PDF document text
    • https://adoz.cz/ckfinder/userfiles/files/are-robux-miner-free_GM431946152.pdfIn PDF document text
    • https://adoz.cz/ckfinder/userfiles/files/how-to-get-tshirts-on-roblox-free_GM431946152.pdfIn PDF document text
    • https://adoz.cz/ckfinder/userfiles/files/roblox-latest-version-free-download_GM431946152.pdfIn PDF document text
    • https://adoz.cz/ckfinder/userfiles/files/coinmaster-free-spins-link_GM406889139.pdfIn PDF document text
    • https://adoz.cz/ckfinder/userfiles/files/como-hackear-roblox-para-tener-robux-pc_GM431946152.pdfIn PDF document text
    • https://adoz.cz/ckfinder/userfiles/files/roblox-arsenal-hacks-download_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_off00002ed6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2ED6 21688 bytes
SHA-256: e32b254748acf7347d475e6aacbac55efc9ba353878b416d8943c3868681a095
font_01_sfnt_off00005e06.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E06 18580 bytes
SHA-256: 0f0b7e9792ce03a46f62115315cf89ce6201b0b871525563214e7880f5cc0e45

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