Malicious PDF — malware analysis report

Static analysis result for SHA-256 e24913d31a6acb3f…

MALICIOUS

PDF

50.6 KB Created: 2020-08-02 05:01:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6f6ad9aaeafbfae6ad2a995a434fc89a SHA-1: 61710095a21c96faeca96bfa8c621235229531f3 SHA-256: e24913d31a6acb3f76ca520541f9447601b7d98e09f0fb4c5861d343b2520fee
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 Shopify domains hosting other PDFs, suggesting a link farm for SEO manipulation or traffic redirection. One critical heuristic identified a link to a known malicious redirector at 'https://ttraff.ru/pify?keyword=bourne+idenity+soundtrack'. The document body, though heavily obfuscated, contains references to the redirector URL and other PDF links. 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=bourne+idenity+soundtrack
    • http://files.tribalexperiences.com/uploads/1/3/0/7/130738921/lavurogelebug_piduzi_lesuje.pdf
    • http://files.thedrewdrake.com/uploads/1/3/0/8/130814666/wuwemuzami.pdf
    • http://files.almahdan.com/uploads/1/3/1/4/131437149/xefiwubuwabavewaxi.pdf
    • https://cdn.shopify.com/s/files/1/0431/6954/6395/files/tesibiliwagoxujomir.pdf
    • https://cdn.shopify.com/s/files/1/0430/4837/0333/files/tafununubotureduvuk.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nexunalazuzifoginiwaboliz.pdf
    • https://cdn.shopify.com/s/files/1/0440/5503/6054/files/37121742286.pdf
    • https://cdn.shopify.com/s/files/1/0430/8611/9079/files/21783005177.pdf
    • https://cdn.shopify.com/s/files/1/0433/0926/9156/files/show_the_world_lil_bossie.pdf
    • https://cdn.shopify.com/s/files/1/0430/4220/9945/files/heat_and_mass_transfer_4th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0430/6026/5117/files/cross_out_text_discord.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/30408896218.pdf
    • https://cdn.shopify.com/s/files/1/0436/7548/4313/files/xikuvedirasopupa.pdf
    • https://cdn.shopify.com/s/files/1/0435/7609/8975/files/najimeliwavivozif.pdf
    • https://cdn.shopify.com/s/files/1/0429/8198/2361/files/kajizasa.pdf
    • https://cdn.shopify.com/s/files/1/0432/0159/3507/files/mojatajapofekuzeg.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_off00008710.bin
b225283630aece32cf103f7374fd991b96da7cf70025fcf2ab2d7dac62f40f4e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8710 5116 bytes
font_01_sfnt_off00009895.bin
f4ebf48b4b226b7f7c13986340a63809a001fe5db047d13ee92f0095a2ad9c36		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9895 10756 bytes

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