Malicious PDF — malware analysis report

Static analysis result for SHA-256 b407cf7fde562697…

MALICIOUS

PDF

31.8 KB Created: 2020-08-03 01:29:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6a7597279a1691f539fa6f372de0f464 SHA-1: e46d4173e9271e8e7a445a5ca27d8195bcfa083d SHA-256: b407cf7fde562697c1e305294929a537a8f6a2c05384e6b39517245be158a083
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains multiple embedded links, with one pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the URL that leads to the redirector. This suggests a phishing or scam attempt, likely aiming to lure users to malicious content. No scripts were extracted, limiting the analysis of direct execution capabilities.

Heuristics 3

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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 https://ttraff.cc/pify?keyword=ryobi+18v+trimmer+manual
    • http://files.madcityparagliding.com/uploads/1/3/1/0/131069987/1700156.pdf
    • http://files.teachforkosova.org/uploads/1/3/0/7/130739542/guwijumebono.pdf
    • http://files.edwardsartstudios.com/uploads/1/3/1/1/131163832/7862060.pdf
    • https://cdn.shopify.com/s/files/1/0430/4296/3613/files/17106398895.pdf
    • https://cdn.shopify.com/s/files/1/0432/6758/8252/files/regelazufupixanogok.pdf
    • https://cdn.shopify.com/s/files/1/0431/5054/0964/files/zetoxekipapuwisagug.pdf
    • https://cdn.shopify.com/s/files/1/0428/4920/6439/files/ragarozijow.pdf
    • https://cdn.shopify.com/s/files/1/0431/1983/7346/files/37372905445.pdf
    • https://cdn.shopify.com/s/files/1/0431/2937/2832/files/38444431304.pdf
    • https://cdn.shopify.com/s/files/1/0428/1778/1927/files/fate_zero_episode_1.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/22271122494.pdf
    • https://cdn.shopify.com/s/files/1/0434/7117/5846/files/xemexeribireremawisiginob.pdf
    • https://cdn.shopify.com/s/files/1/0432/8184/2341/files/219451632.pdf
    • https://cdn.shopify.com/s/files/1/0429/5242/5631/files/tamudixajibeza.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004241.bin
5c63ad77a8969d08e3debaa6001b9cc01d759fcf1c7c103c0ca80b31bdb85510		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4241 5208 bytes
font_01_sfnt_off000053f9.bin
c680977929b39e4b367374ad1518e8292b35223e2d5a77b72f1bc3d019fa9837		 pdf-font-stream PDF embedded font (sfnt) at offset 0x53F9 8960 bytes

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