Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e0575a45a419eae…

MALICIOUS

PDF

33.4 KB Created: 2021-06-25 23:31:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: cf9ab60606a772cf0404311ceae1435d SHA-1: 1cb405c6cc0be7f90d97547a79b9eccebf8906d4 SHA-256: 3e0575a45a419eaec296d18a68430d4f1f87e4c6a1318d87e02c79bd45c02f0d
102 Risk Score

Malware Insights

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

The PDF document contains numerous embedded links and a call-to-action phrase, strongly suggesting a phishing or scam attempt. The document body and extracted URLs indicate a lure for free in-game items or hacks for popular games like Roblox and Minecraft. The heuristic 'PDF_SEO_LINK_FARM' further supports that this document is designed to host a large number of external links, likely for malicious purposes.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

Heuristics 4

  • 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.
  • 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/how-to-get-free-cloth-roblox-game-hack PDF link annotation
    • http://junktiquecollector.com/images/how-can-you-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://junktiquecollector.com/images/free-robux-glitch-2021_GM431946152.pdfIn PDF document text
    • http://junktiquecollector.com/images/coin-master-free-spins-cash_GM406889139.pdfIn PDF document text
    • http://junktiquecollector.com/images/minecraft-bedrock-edition-free_GM479516143.pdfIn PDF document text
    • http://junktiquecollector.com/images/free-robux-come_GM431946152.pdfIn PDF document text
    • http://junktiquecollector.com/images/how-to-make-a-free-t-shirt-roblox_GM431946152.pdfIn PDF document text
    • http://junktiquecollector.com/images/minecraft-app-free-download_GM479516143.pdfIn PDF document text
    • http://junktiquecollector.com/images/free-robux-gift-card-codes-2021_GM431946152.pdfIn PDF document text
    • http://junktiquecollector.com/images/roblox-hacked-com-2021_GM431946152.pdfIn PDF document text
    • http://junktiquecollector.com/images/free-tiktok-likes-no-human-verification-or-downloading-apps_GM835599320.pdfIn PDF document text
    • http://junktiquecollector.com/images/how-to-get-free-roebucks-on-roblox_GM431946152.pdfIn PDF document text
    • http://junktiquecollector.com/images/earn-free-robux-for-roblox_GM431946152.pdfIn PDF document text
    • http://junktiquecollector.com/images/how-to-hack-roblox-to-get-robux_GM431946152.pdfIn PDF document text
    • http://junktiquecollector.com/images/ways-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://junktiquecollector.com/images/how-to-get-free-robux-instantly_GM431946152.pdfIn PDF document text
    • http://junktiquecollector.com/images/how-to-get-minecraft-for-free-on-android_GM479516143.pdfIn PDF document text
    • http://junktiquecollector.com/images/all-roblox-dance-hacks_GM431946152.pdfIn PDF document text
    • http://junktiquecollector.com/images/roblox-change-name-hack-pastebin_GM431946152.pdfIn PDF document text
    • http://junktiquecollector.com/images/roblox-dragon-ball-after-future-clicker-script-hack_GM431946152.pdfIn PDF document text
    • http://junktiquecollector.com/images/minecraft-anarchy-server-no-hacks_GM479516143.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_off00002bf7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2BF7 22320 bytes
SHA-256: ec8389aaf765ec23cc8e86bbbcafef8c901a7443ddb8307a436e200d5b4e78c1
font_01_sfnt_off00005d94.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D94 19084 bytes
SHA-256: 19226ae84bc2d95dab0236afd2ab906cc884c4f6a116e151323f8426ca41f113

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