Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e223fbefeb92008…

MALICIOUS

PDF

34.7 KB Created: 2021-07-04 10:17:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: ee2b4c69651719ceb44db92755391189 SHA-1: cb451bb8488cdfbd4d654edf150da09809f846a7 SHA-256: 8e223fbefeb9200817719877903c71c3488608d4d2349f40480df62ce37e95c6
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains numerous embedded URLs and a prominent call-to-action phrase, directing users to websites that promise free game currency or accounts. The ML classifier strongly flagged this PDF as malicious, and the presence of external URIs, including one pointing to a raw IP address, reinforces the likelihood of a phishing or scam campaign. No scripts were extracted from this sample.

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/406889139/coin-master-free-spins-link-today-new-game-hack
    • http://202.56.165.220/digilab/repository/free-roblox-accounts-2021-with-robux_GM431946152.pdf
    • http://202.56.165.220/digilab/repository/free-roblox-gift-card-earning-points_GM431946152.pdf
    • http://202.56.165.220/digilab/repository/roblox-free-items-promo-codes-2021_GM431946152.pdf
    • http://202.56.165.220/digilab/repository/how-to-get-free-robux-no-scam-or-hack_GM431946152.pdf
    • http://202.56.165.220/digilab/repository/coin-master-2021-free-spins_GM406889139.pdf
    • http://202.56.165.220/digilab/repository/free-robux-gift-card_GM431946152.pdf
    • http://202.56.165.220/digilab/repository/free-roblox-hack-without-human-verification_GM431946152.pdf
    • http://202.56.165.220/digilab/repository/how-to-get-free-robux-in-apple-ipad_GM431946152.pdf
    • http://202.56.165.220/digilab/repository/coin-master-card-hack_GM406889139.pdf
    • http://202.56.165.220/digilab/repository/coin-master-free-spins-link-blogspot-today_GM406889139.pdf
    • http://202.56.165.220/digilab/repository/how-to-hack-roblox-accounts-with-cheat-engine_GM431946152.pdf
    • http://202.56.165.220/digilab/repository/roblox-jailbreak-noclip-hack-no-download_GM431946152.pdf
    • http://202.56.165.220/digilab/repository/roblox-free-download-pc-windows-7_GM431946152.pdf
    • http://202.56.165.220/digilab/repository/freed-plugin-roblox_GM431946152.pdf
    • http://202.56.165.220/digilab/repository/coin-master-free-cards-link_GM406889139.pdf
    • http://202.56.165.220/digilab/repository/codes-for-free-robux-2021_GM431946152.pdf
    • http://202.56.165.220/digilab/repository/free-roblox-accounts-2021-bugmenot_GM431946152.pdf
    • http://202.56.165.220/digilab/repository/free-roblox-password-cracker_GM431946152.pdf
    • http://202.56.165.220/digilab/repository/how-to-get-free-cars-in-jailbreak-roblox_GM431946152.pdf
    • http://202.56.165.220/digilab/repository/free-axe-in-roblox_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off0000304e.bin
cf61f67eaf6f68e0f64237a48cdb90b20284219e3c16f4e63d276961aeb0abb4
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x304E 22796 bytes
font_01_sfnt_off0000630e.bin
c2b00cda6ccae936c285d4a8f1a252405c0779bc4d7804dfd8560043eb77b64f
pdf-font-stream PDF embedded font (sfnt) at offset 0x630E 18864 bytes