Malicious PDF — malware analysis report

Static analysis result for SHA-256 368e5ddc95208c0f…

MALICIOUS

PDF

48.5 KB Created: 2020-07-31 01:12:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6e7375a56a577c89ae72fcb14e812989 SHA-1: 0081ee777550f382fe055d6433971035138bfbda SHA-256: 368e5ddc95208c0ff33014cbc337322517b0bd0dfd20bafeb1e05b456c62ed04
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, a technique often used to create SEO link farms. One of the primary links directs to a known malicious redirector, ttraff.com, which is likely used to obscure the final malicious destination. The document body, though heavily obfuscated, suggests a lure related to a songbook, which is a common tactic to entice users to click on malicious 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=the+beatles+complete+chord+songbook+hal+leonard+pdf
    • http://files.katiegracecollins.com/uploads/1/3/1/0/131070202/7394071.pdf
    • http://files.warkprimaryschool.co.uk/uploads/1/3/1/3/131380158/3763230.pdf
    • http://files.schoolsectionlake.com/uploads/1/3/0/7/130775856/fukefudeju.pdf
    • https://cdn.shopify.com/s/files/1/0432/0909/7384/files/xesabubotaj.pdf
    • https://cdn.shopify.com/s/files/1/0427/8091/7926/files/ruleletuguxegep.pdf
    • https://cdn.shopify.com/s/files/1/0431/5214/6587/files/69858430908.pdf
    • https://cdn.shopify.com/s/files/1/0436/2996/9561/files/12984831997.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/duzawubemamomavokam.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vonabubabosutogoxofe.pdf
    • https://cdn.shopify.com/s/files/1/0433/3076/4968/files/74287603506.pdf
    • https://cdn.shopify.com/s/files/1/0428/3029/9292/files/maluxeti.pdf
    • https://cdn.shopify.com/s/files/1/0433/3325/5323/files/29016783259.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jivanup.pdf
    • https://cdn.shopify.com/s/files/1/0432/0886/8008/files/zetupudazuf.pdf
    • https://cdn.shopify.com/s/files/1/0433/2886/4409/files/navevup.pdf
    • https://cdn.shopify.com/s/files/1/0431/1747/8044/files/xenofama.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/
    • https://cdn.shopify.com/s/files/1/0433/0

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007466.bin
a7506c851889af47a76a0639ab3f376136fe9103d13c92e283615167c22795c4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7466 5464 bytes
font_01_sfnt_off000086c6.bin
0cad9629e836fb155118f67e36b159b0d6d3ca745c7b10b41bab9032ce7627c5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x86C6 14616 bytes

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