Malicious PDF — malware analysis report

Static analysis result for SHA-256 660ec7d71cd4e71d…

MALICIOUS

PDF

34.9 KB Created: 2021-07-05 11:42:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 80d6ca62dc927d6948ac8a0cddb9c255 SHA-1: ac7bb5d1cfa1ae607edf0f30ae676f6a0f42c9aa SHA-256: 660ec7d71cd4e71de18765e39823571ddf5ed412fbcf688a0c93bc8951325d9e
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded URLs and a document body that explicitly mentions 'Roblox Hack' and 'free stuff'. The presence of external URIs, including one pointing to a raw IP address, suggests an attempt to redirect the user to malicious content. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it is a lure for downloading potentially harmful files.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • 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/criminal-vs-swat-roblox-hack-game-hack PDF link annotation
    • http://202.56.165.220/digilab/repository/how-to-get-free-stuff-from-the-catalog-on-roblox_GM431946152.pdfPDF link annotation
    • http://202.56.165.220/digilab/repository/roblox-games-to-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://202.56.165.220/digilab/repository/doctor-louie-roblox_GM431946152.pdfIn PDF document text
    • http://202.56.165.220/digilab/repository/free-roblox-followers-generator-2021_GM431946152.pdfIn PDF document text
    • http://202.56.165.220/digilab/repository/free-robux-generator-com-roblox-hack_GM431946152.pdfIn PDF document text
    • http://202.56.165.220/digilab/repository/roblox-skins-free-hack_GM431946152.pdfIn PDF document text
    • http://202.56.165.220/digilab/repository/coolkid-hack-client-roblox_GM431946152.pdfIn PDF document text
    • http://202.56.165.220/digilab/repository/free-robux-websites-that-work_GM431946152.pdfIn PDF document text
    • http://202.56.165.220/digilab/repository/roblox-hack-tool-2021_GM431946152.pdfIn PDF document text
    • http://202.56.165.220/digilab/repository/cheat-roblox-pour-acheter-des-gamepass-gratuitement_GM431946152.pdfIn PDF document text
    • http://202.56.165.220/digilab/repository/coin-and-spin_GM406889139.pdfIn PDF document text
    • http://202.56.165.220/digilab/repository/rbxboost-free-robux_GM431946152.pdfIn PDF document text
    • http://202.56.165.220/digilab/repository/how-to-hack-and-know-what-people-are-inmm2-roblox_GM431946152.pdfIn PDF document text
    • http://202.56.165.220/digilab/repository/roblox-cheats-on-phone_GM431946152.pdfIn PDF document text
    • http://202.56.165.220/digilab/repository/how-to-get-free-robux-playing-a-game_GM431946152.pdfIn PDF document text
    • http://202.56.165.220/digilab/repository/earn-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://202.56.165.220/digilab/repository/free-robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • http://202.56.165.220/digilab/repository/pig-master-coin-master-free-spin_GM406889139.pdfIn PDF document text
    • http://202.56.165.220/digilab/repository/hacks-roblox-the-streets_GM431946152.pdfIn PDF document text
    • http://202.56.165.220/digilab/repository/free-crimson-winter-scarf-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
font_00_sfnt_off00003174.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3174 22252 bytes
SHA-256: 3f5a4683815c9f800302f1270ef0cc6cdec7d575f523fb97c8d3a24296c20c48
font_01_sfnt_off000062e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62E0 19252 bytes
SHA-256: e5dbe6dbd68006148e39e50a54473d48bbe7754f3f6d89bb95419fce6a450411

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