Malicious PDF — malware analysis report

Static analysis result for SHA-256 dfe4eba1035a64a9…

MALICIOUS

PDF

37.8 KB Created: 2020-08-22 11:00:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6075e2ef45ee5b0f5b3a62f77b310ace SHA-1: d1982a04158566b9da0ce4fc3947671a4ad94ac4 SHA-256: dfe4eba1035a64a9aaf1cf705c8ee8f29360e215737b8e1002b0c80a3e2af596
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'The great debaters movie viewing guide' and the malicious URL, suggesting a lure to a phishing or malware distribution site. The presence of multiple Shopify-hosted PDF links indicates a potential link farm used for SEO poisoning to drive traffic to malicious sites.

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=the+great+debaters+movie+viewing+guide
    • http://wodorudi.passion4healing.club/uploads/1/3/0/8/130814448/54d0b65.pdf
    • http://files.serrano-padial.com/uploads/1/3/1/0/131069887/dokebubuze.pdf
    • http://tojaluzad.caulfieldpark.com/uploads/1/3/1/4/131453960/6158253.pdf
    • https://cdn.shopify.com/s/files/1/0434/0255/9655/files/66380876910.pdf
    • https://cdn.shopify.com/s/files/1/0431/2632/5402/files/geomorphology_book_by_thornbury.pdf
    • https://cdn.shopify.com/s/files/1/0434/7405/9430/files/wafasizefukokupogaroxo.pdf
    • https://cdn.shopify.com/s/files/1/0438/4607/4525/files/editorial_writing_campus_journalism.pdf
    • https://cdn.shopify.com/s/files/1/0432/7201/1941/files/4051135961.pdf
    • https://cdn.shopify.com/s/files/1/0429/1916/6105/files/libure.pdf
    • https://cdn.shopify.com/s/files/1/0432/6067/4198/files/zegawuwawipoxewafixaw.pdf
    • https://cdn.shopify.com/s/files/1/0431/5555/4458/files/53959709111.pdf
    • https://cdn.shopify.com/s/files/1/0438/5089/1424/files/50818907409.pdf
    • https://cdn.shopify.com/s/files/1/0431/8386/6007/files/vixutuga.pdf
    • https://cdn.shopify.com/s/files/1/0434/5865/8454/files/rotuninazilokake.pdf
    • https://cdn.shopify.com/s/files/1/0435/7767/1843/files/luzevenu.pdf
    • https://cdn.shopify.com/s/files/1/0437/2247/3624/files/2650264901.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_off000048f3.bin
38bca76d0613e9d9f14a02a4172b31d552e792f0fccc0f24d14f0fe4410d9803
pdf-font-stream PDF embedded font (sfnt) at offset 0x48F3 5328 bytes
font_01_sfnt_off00005afd.bin
e47fd2d0086b49d1ce0d198a83e429c3918848e1ba213f59836ebac17c50dfa5
pdf-font-stream PDF embedded font (sfnt) at offset 0x5AFD 9704 bytes
font_02_sfnt_off00007c29.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34
pdf-font-stream PDF embedded font (sfnt) at offset 0x7C29 4324 bytes