Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e2165696fa3b23c…

MALICIOUS

PDF

37.2 KB Created: 2020-08-08 20:24:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fe19c1587a1add3e881ca054285c9cd6 SHA-1: 6c757c317fbf07123a8ea56fb5fb5bfe1618d4aa SHA-256: 8e2165696fa3b23cfb59aa95e8c350d348c20557b2d6f6aa3be1388aaab1e6a3
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to ttraff.ru. Additionally, it exhibits characteristics of a link farm, embedding numerous external PDF links, many of which are hosted on Shopify. The document body itself contains the malicious URL and several other potentially malicious URLs, suggesting a lure to download further content or redirect to malicious sites. No scripts were extracted, limiting the analysis of direct execution capabilities.

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=bikhre+moti+maulana+yunus+palanpuri+pdf
    • http://files.startxbenefits.com/uploads/1/3/1/4/131406449/ee3c3461e8.pdf
    • http://files.janeconquest.com/uploads/1/3/1/8/131871816/goxumupelolaxir-jagusatenedop-vasim-vorijidiwavag.pdf
    • http://files.ratusaupdhpe.com/uploads/1/3/1/3/131380688/lutituxiv-demuz-nusakido.pdf
    • http://files.justguystravel.com/uploads/1/3/1/4/131406558/efa8f24fa.pdf
    • https://cdn.shopify.com/s/files/1/0427/9386/1279/files/reddit_meth_stories.pdf
    • https://cdn.shopify.com/s/files/1/0432/4920/5405/files/62315799378.pdf
    • https://cdn.shopify.com/s/files/1/0434/0688/5031/files/tunisofudisepex.pdf
    • https://cdn.shopify.com/s/files/1/0430/2965/9805/files/57161970126.pdf
    • https://cdn.shopify.com/s/files/1/0433/5593/0783/files/foredozudemibavomunaxu.pdf
    • https://cdn.shopify.com/s/files/1/0428/1165/4307/files/types_of_communication_networks_in_organizations.pdf
    • https://cdn.shopify.com/s/files/1/0430/0704/9877/files/86102319166.pdf
    • https://cdn.shopify.com/s/files/1/0433/8126/0440/files/66993277935.pdf
    • https://cdn.shopify.com/s/files/1/0431/6548/3172/files/nibiduzoforuruve.pdf
    • https://cdn.shopify.com/s/files/1/0449/5890/8584/files/genetic_algorithm_tutorial_step_by_step_example.pdf
    • https://cdn.shopify.com/s/files/1/0431/8576/6561/files/karedufiroxexu.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_off00005396.bin
5d392b0e8f5ba55f03f19a931867b8e23b8f413445a6c532ef7fd16c1e974316		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5396 5496 bytes
font_01_sfnt_off00006625.bin
25d13d8e59ca0cdbaab3ddf690417ac673aac652e658c3be19919ba8cf4af025		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6625 9864 bytes

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