Malicious PDF — malware analysis report

Static analysis result for SHA-256 ccb369b2fc465618…

MALICIOUS

PDF

46.8 KB Created: 2020-08-02 09:00:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 599f30758c54966e4fef5bc4a8a6fdd2 SHA-1: 38acbb468e48c6db862b519ad59c6f4b6c0b5e22 SHA-256: ccb369b2fc4656186773bd5ae21381333a956f3f946d81096cce69e6f70d7fd4
120 Risk Score

Malware Insights

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

The PDF file contains a link farm with numerous embedded URLs, many hosted on Shopify, designed to appear as legitimate content. One of the primary links, however, redirects to a known malicious infrastructure at 'ttraff.ru'. This suggests a phishing or redirection attack aimed at leading users to malicious content. No scripts were extracted from this sample.

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.ru/pify?keyword=gtx+970+benchmark
    • http://files.theflourishsisterhood.com/uploads/1/3/1/3/131398156/95d18288fa830.pdf
    • http://files.castlespacovers.com/uploads/1/3/0/8/130874067/zozila.pdf
    • http://files.oshunswimschool.com/uploads/1/3/1/3/131379732/jokegixifubixaw.pdf
    • http://files.gogovernors.com/uploads/1/3/1/4/131406762/6528224.pdf
    • http://files.anzaborregopaleo.org/uploads/1/3/1/4/131437246/83768c05.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wopesutokuvikoku.pdf
    • https://cdn.shopify.com/s/files/1/0433/3862/9275/files/80921411219.pdf
    • https://cdn.shopify.com/s/files/1/0429/5943/7975/files/54841851823.pdf
    • https://cdn.shopify.com/s/files/1/0435/4270/8378/files/stoeger_condor_supreme.pdf
    • https://cdn.shopify.com/s/files/1/0430/3070/8375/files/94964908696.pdf
    • https://cdn.shopify.com/s/files/1/0430/4519/1841/files/walubiniwil.pdf
    • https://cdn.shopify.com/s/files/1/0435/9523/5490/files/tuzibuzuvifer.pdf
    • https://cdn.shopify.com/s/files/1/0432/8348/0736/files/kuwoko.pdf
    • https://cdn.shopify.com/s/files/1/0433/9315/5237/files/java_sprint_boot_read_a_rsa_file.pdf
    • https://cdn.shopify.com/s/files/1/0433/2650/5118/files/virezuzovabinosu.pdf
    • https://cdn.shopify.com/s/files/1/0430/3169/1421/files/91988417972.pdf
    • https://cdn.shopify.com/s/files/1/0431/2314/6906/files/poxupewiwujazuf.pdf
    • https://cdn.shopify.com/s/files/1/0432/5307/2022/files/48038603938.pdf
    • https://cdn.shopify.com/s/files/1/0434/6016/5797/files/taxisexexened.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_off000069a7.bin
72311c3c7131466ebfca983ca6fe922bb4248f276c4ac3a8992f514855f28d22
pdf-font-stream PDF embedded font (sfnt) at offset 0x69A7 5140 bytes
font_01_sfnt_off00007aed.bin
2fb4cbca4466e57275f8bdf167e629113d6edf3175c5de2061273b196cfc1b12
pdf-font-stream PDF embedded font (sfnt) at offset 0x7AED 10712 bytes
font_02_sfnt_off00009f9b.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34
pdf-font-stream PDF embedded font (sfnt) at offset 0x9F9B 4324 bytes