Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ba60b2b917b3ff2…

MALICIOUS

PDF

34.1 KB Created: 2021-07-06 11:31:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: e833cdd3a26bce4a3ab7ba3ef94a1007 SHA-1: 6dacf7cbb822bec816afbffac4e94512e7eb739d SHA-256: 1ba60b2b917b3ff26724c0abdb4c329f8c763dfc0fae9afebeafe05623a20cb8
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains a large number of external links, many pointing to IP addresses, that are disguised as resources for game cheats and hacks. The heuristic 'PDF_SEO_LINK_FARM' indicates a mass of such links, suggesting a malicious intent to redirect users to potentially harmful content. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 5

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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/roblox-com-games-referrer-roblox-player-game-hack
    • http://202.56.165.220/digilab/repository/coin-master-fun-hack-online_GM406889139.pdf
    • http://202.56.165.220/digilab/repository/free-rixty-codes-for-roblox-2021_GM431946152.pdf
    • http://202.56.165.220/digilab/repository/can-you-cheat-in-roblox-flee-the-facility_GM431946152.pdf
    • http://202.56.165.220/digilab/repository/free-roblox-stuff-2021-promo-codes_GM431946152.pdf
    • http://202.56.165.220/digilab/repository/como-hackear-vehicle-simulator-roblox-para-tener-12000000-2021_GM431946152.pdf
    • http://202.56.165.220/digilab/repository/claim-robux-free_GM431946152.pdf
    • http://202.56.165.220/digilab/repository/robux-cheat-app_GM431946152.pdf
    • http://202.56.165.220/digilab/repository/how-to-hack-your-friends-robux_GM431946152.pdf
    • http://202.56.165.220/digilab/repository/coin-master-hack-software-download_GM406889139.pdf
    • http://202.56.165.220/digilab/repository/can-i-download-roblox-for-ps3-free_GM431946152.pdf
    • http://202.56.165.220/digilab/repository/roblox-800-robux-for-free_GM431946152.pdf
    • http://202.56.165.220/digilab/repository/freespinandcoin-blogspot-com_GM406889139.pdf
    • http://202.56.165.220/digilab/repository/how-to-get-free-money-in-roblox-rocitizens_GM431946152.pdf
    • http://202.56.165.220/digilab/repository/free-robux-no-more_GM431946152.pdf
    • http://202.56.165.220/digilab/repository/coin-master-free-spins-and-coins-2021_GM406889139.pdf
    • http://202.56.165.220/digilab/repository/robux-hack-no-verification_GM431946152.pdf
    • http://202.56.165.220/digilab/repository/redline-cheat-roblox-download_GM431946152.pdf
    • http://202.56.165.220/digilab/repository/how-to-hack-roblox-jailbreak-money-with-cheat-engine_GM431946152.pdf
    • http://202.56.165.220/digilab/repository/roblox-btool-hack-ultmate_GM431946152.pdf
    • http://202.56.165.220/digilab/repository/minecraft-games-to-play-for-free_GM479516143.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002ea7.bin
71d60ca041ffc9ba1879f5dccaf6c5919962b76dd94c2cab1f84ee818df366a1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2EA7 22312 bytes
font_01_sfnt_off00006030.bin
0ac16e341a8e5aa813c5f5085e0ee35b0e841b2cb885637185c36855aa31181f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6030 19080 bytes

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