Malicious PDF — malware analysis report

Static analysis result for SHA-256 e43fdfe3ba02e7ec…

MALICIOUS

PDF

35.9 KB Created: 2021-06-29 16:16:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 10c3f2049bad3de1aad7fb9fb06d5cb3 SHA-1: 1587380825b822d719eb59ae061560538762b2bc SHA-256: e43fdfe3ba02e7ec892d5e77bf132a73b02ba1121c5eff0c6f9972fb2a55aaa4
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The document contains numerous embedded URLs and a prominent call-to-action related to downloading game hacks, strongly suggesting a phishing or malware distribution attempt. The ML classifier also flagged this PDF as malicious with high confidence. While no scripts were explicitly extracted, the presence of multiple external URLs indicates a likely attempt to redirect the user to a malicious site for downloading a payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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.co/app/431946152/hack-roblox-cbro-download-game-hack PDF link annotation
    • http://pustaka.antropologi.fisip.unand.ac.id/repository/hacks-for-roblox-flying_GM431946152.pdfIn PDF document text
    • http://pustaka.antropologi.fisip.unand.ac.id/repository/youtub-robux-hack_GM431946152.pdfIn PDF document text
    • http://pustaka.antropologi.fisip.unand.ac.id/repository/how-to-get-free-boy-hair-on-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.antropologi.fisip.unand.ac.id/repository/cool-roblox-clothes-for-free_GM431946152.pdfIn PDF document text
    • http://pustaka.antropologi.fisip.unand.ac.id/repository/free-gtv-in-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.antropologi.fisip.unand.ac.id/repository/free-robloxcom-login_GM431946152.pdfIn PDF document text
    • http://pustaka.antropologi.fisip.unand.ac.id/repository/free-spin-link-for-coin-master_GM406889139.pdfIn PDF document text
    • http://pustaka.antropologi.fisip.unand.ac.id/repository/roblox-dentist-game-online-free-no-download_GM431946152.pdfIn PDF document text
    • http://pustaka.antropologi.fisip.unand.ac.id/repository/free-robux-kid-friendly-no-human-verification_GM431946152.pdfIn PDF document text
    • http://pustaka.antropologi.fisip.unand.ac.id/repository/roblox-online-hack_GM431946152.pdfIn PDF document text
    • http://pustaka.antropologi.fisip.unand.ac.id/repository/how-to-have-no-pants-for-free-on-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.antropologi.fisip.unand.ac.id/repository/how-to-use-cheat-engine-in-roblox-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.antropologi.fisip.unand.ac.id/repository/how-to-hack-roblox-accounts-on-phone_GM431946152.pdfIn PDF document text
    • http://pustaka.antropologi.fisip.unand.ac.id/repository/free-tiktok-accounts-and-passwords_GM835599320.pdfIn PDF document text
    • http://pustaka.antropologi.fisip.unand.ac.id/repository/roblox-torso-position-cheat-engine_GM431946152.pdfIn PDF document text
    • http://pustaka.antropologi.fisip.unand.ac.id/repository/free-100-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.antropologi.fisip.unand.ac.id/repository/roblox-community-free-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.antropologi.fisip.unand.ac.id/repository/site-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.antropologi.fisip.unand.ac.id/repository/free-robux-real-no-verification_GM431946152.pdfIn PDF document text
    • http://pustaka.antropologi.fisip.unand.ac.id/repository/download-cheat-roblox-mod-apk_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_off00003322.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3322 23124 bytes
SHA-256: 1445f72505da0d3b1d99fe37f00bcc7853c811c46eb810e7835e745a37c6657d
font_01_sfnt_off000066f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66F6 19160 bytes
SHA-256: c015ba46c95b94e1dafa16a3e37c69e98cf5c441d3cfee54d7656bd1bdf4cf34

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