Malicious PDF — malware analysis report

Static analysis result for SHA-256 464de8c4ef0fe718…

MALICIOUS

PDF

40.8 KB Created: 2020-08-25 04:39:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3bcea4059474114231159a523386fcd5 SHA-1: c175aabe1feb0cb979d118715b020ff8fdb6f3b7 SHA-256: 464de8c4ef0fe71876ac7a5ef165b1d090219e54f979f7777104587f88197994
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on Shopify. One critical heuristic identified a link to a known malicious redirector, ttraff.com, which likely serves as the initial lure. The document body, though heavily obfuscated, contains the same malicious URL and several other PDF links, suggesting a coordinated effort to direct users to potentially harmful content. No scripts were extracted, but the primary attack pattern involves social engineering through deceptive links.

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.com/pify?keyword=baaghi+salman+khan+video+song
    • http://files.blackraven6.com/uploads/1/3/1/3/131383247/fewerulujob_wiropalag_bumitalalivu_wumugobij.pdf
    • http://files.finewineandesotericspirits.com/uploads/1/3/1/6/131637850/xetefewilugibisixe.pdf
    • http://files.rejectrobotics.com/uploads/1/3/0/9/130969659/3aa808899.pdf
    • http://files.mainlinetv.org/uploads/1/3/1/3/131398477/3792164.pdf
    • https://cdn.shopify.com/s/files/1/0439/4981/8024/files/poe_broken_bridge.pdf
    • https://cdn.shopify.com/s/files/1/0432/2390/8520/files/jizuwopakakir.pdf
    • https://cdn.shopify.com/s/files/1/0432/5706/9721/files/gepoz.pdf
    • https://cdn.shopify.com/s/files/1/0438/2598/7734/files/53086302431.pdf
    • https://cdn.shopify.com/s/files/1/0436/2010/6404/files/vivuzo.pdf
    • https://cdn.shopify.com/s/files/1/0432/8721/6293/files/12686489641.pdf
    • https://cdn.shopify.com/s/files/1/0430/3532/8663/files/kukukobexinujevaseg.pdf
    • https://cdn.shopify.com/s/files/1/0429/1896/9507/files/11801813848.pdf
    • https://cdn.shopify.com/s/files/1/0432/0041/3856/files/23513828633.pdf
    • https://cdn.shopify.com/s/files/1/0437/0500/8280/files/26758614802.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004e84.bin
867e5acb705af79d3e3f1d0228d28a9f89c6575443d51ff6aad3a8c24dd04b91		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4E84 5316 bytes
font_01_sfnt_off0000607c.bin
9ec613252ed2abd35ce4c182977e60b348aad83586cffb028b1c15e012acad2f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x607C 10324 bytes
font_02_sfnt_off00008413.bin
8c740efe166ad032b11cde43fdff6a60c9396b8ca6592ca5452085c778e3c970		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8413 5180 bytes

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