Malicious PDF — malware analysis report

Static analysis result for SHA-256 cf2184f19428b102…

MALICIOUS

PDF

47.5 KB Created: 2020-08-30 21:42:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 021dc25a449afd4278f1d0d72e898bfb SHA-1: f15cf5fc4e084721458e91f4ef508209acbf5f27 SHA-256: cf2184f19428b102766d3d49ef189fe1613e78fe037bbcf45b838f18a5367984
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a redirector service. The document body mentions 'M9 bayonet lore' and includes a URL that appears to be a lure. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK strongly suggests that the primary goal is to redirect the user to malicious infrastructure.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.link/wix?keyword=m9+bayonet+lore
    • https://cdn.shopify.com/s/files/1/0434/4827/1000/files/siwuvok.pdf
    • https://cdn.shopify.com/s/files/1/0434/7474/7558/files/2008_ford_escape_manual.pdf
    • https://cdn.shopify.com/s/files/1/0432/6886/6208/files/noxemoruvuvezu.pdf
    • https://cdn.shopify.com/s/files/1/0429/3672/9766/files/7759887421.pdf
    • https://static.usrfiles.com/ugd/b8c837_abebc3777b5b4a4f8867a1f155e4821f.pdf
    • https://static.usrfiles.com/ugd/f1d680_4fa608aacb00450b948db20962e89192.pdf
    • https://static.usrfiles.com/ugd/f3ecbe_525f2d8be17b4edd981a357cf0d8a88c.pdf
    • https://static.usrfiles.com/ugd/724fb5_69d0b8bafbc24410a3bbd7816c3bc8cc.pdf
    • https://static.usrfiles.com/ugd/b8c837_03469f8f1a1c4133900d943862dac300.pdf
    • https://static.usrfiles.com/ugd/b8c837_38493757649841c7a5b34681288a6b9c.pdf
    • https://static.usrfiles.com/ugd/b8c837_7b12ea54676b4fd69226921cd694a7aa.pdf
    • https://static.usrfiles.com/ugd/a1fb72_c9206ab07c964ba784b5ed2538cfff42.pdf
    • https://static.usrfiles.com/ugd/b8c837_db3253c0efc7482b895a918465f5b309.pdf
    • https://static.usrfiles.com/ugd/a2d007_1692cd8e70054a788c883a9dca234558.pdf
    • https://cdn.shopify.com/s/files/1/0434/2802/0373/files/5010479092.pdf
    • https://cdn.shopify.com/s/files/1/0433/8014/6343/files/99519073086.pdf
    • https://cdn.shopify.com/s/files/1/0431/2937/2821/files/molesigigedaporumozo.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005493.bin
10b689507ba07a2c0ca68a355a747b5a91b6c53938f841809dd683b234103750
pdf-font-stream PDF embedded font (sfnt) at offset 0x5493 4644 bytes
font_01_sfnt_off0000646c.bin
d99ba58538f548a7a50a2cf35e5909aee26268769c64aeb2cedb660187838bed
pdf-font-stream PDF embedded font (sfnt) at offset 0x646C 12888 bytes
font_02_sfnt_off00008d7d.bin
2c5f1a2e3d9f683f6a217a47aeaaae813f7d4ef732a5ff54a929695507d09140
pdf-font-stream PDF embedded font (sfnt) at offset 0x8D7D 16092 bytes
font_03_sfnt_off0000a243.bin
ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230
pdf-font-stream PDF embedded font (sfnt) at offset 0xA243 4324 bytes