Malicious PDF — malware analysis report

Static analysis result for SHA-256 c906089e59b8a5d9…

MALICIOUS

PDF

41.8 KB Created: 2020-09-09 11:44:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6b7a260ded4dfdc5736b383692c52a32 SHA-1: 9df72a73ff1f20cb75c49fc4c522c4b4f6487748 SHA-256: c906089e59b8a5d9d565ce1ef67fa4643fb9fe21bb1cbd1a1dcefe642a89da4d
128 Risk Score

Malware Insights

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

The PDF file contains a mass external link farm, with one critical link pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text that appears to be a lure for a 'Canon EOS 7D manual', combined with a call-to-action phrase. This suggests a phishing or scam attempt designed to redirect users to malicious content.

Heuristics 4

  • 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.
  • 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
  • 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.link/wix?keyword=canon+eos+7d+manual
    • https://cdn.shopify.com/s/files/1/0437/0399/2485/files/zemukisopamaka.pdf
    • https://cdn.shopify.com/s/files/1/0431/2514/5760/files/98989571223.pdf
    • https://cdn.shopify.com/s/files/1/0437/4183/9511/files/solved_renderitem_autocomplete.pdf
    • https://static.usrfiles.com/ugd/98e298_defd178ec27f46529c4f7b385da99ece.pdf
    • https://static.usrfiles.com/ugd/41a0b6_1fc38387ea624297b9e5a274ac0de5e2.pdf
    • https://static.usrfiles.com/ugd/9f6a24_109d5cca0f0b45fda8605d865dbb8174.pdf
    • https://static.usrfiles.com/ugd/1715bf_7b6d730d943b45f2a91c00065d0d2b79.pdf
    • https://cdn.shopify.com/s/files/1/0436/5549/5833/files/wobomutusubuzigegukatazof.pdf
    • https://cdn.shopify.com/s/files/1/0428/5651/3692/files/61941991794.pdf
    • https://cdn.shopify.com/s/files/1/0430/7202/8833/files/miliga.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_off00005d81.bin
10a61559fc36d5268ed04e97b81ab598168f1153c06d1c171625048eb94a1b51		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D81 4860 bytes
font_01_sfnt_off00006dfd.bin
b1f353536ee65d4587242c6b8e1bbbb70e8911b943a89ad65d2e2ef37e796598		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6DFD 14392 bytes

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