Malicious PDF — malware analysis report

Static analysis result for SHA-256 89d4616a810dfe16…

MALICIOUS

PDF

44.6 KB Created: 2020-08-09 23:18:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 83f52d18d06013b98cc5888c528b2aeb SHA-1: 6f0cd17fa617eb59afe35a20fc8941fb91f573ff SHA-256: 89d4616a810dfe1600c44281d86bfea506e5677fd150312149030d7fe56e8889
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, many of which point to external resources. One critical heuristic firing indicates that a link within the document directs to a known malicious redirector at 'https://ttraff.com/pify?keyword=cantos+catolicos+letras+pdf'. The document body, though heavily obfuscated, also contains this URL and other links to Shopify-hosted PDFs, suggesting a link farm or SEO poisoning tactic to distribute 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.com/pify?keyword=cantos+catolicos+letras+pdf
    • http://wufixigot.mindfuldemocracy.org/uploads/1/3/0/9/130969204/vefopemaxafu_zafedaj_genenonujunu.pdf
    • http://files.emergingchristians.com/uploads/1/3/0/7/130775659/2381510.pdf
    • http://files.marketingbycat.com/uploads/1/3/1/4/131483336/zatewij.pdf
    • http://files.auroracbdhemp.com/uploads/1/3/2/6/132681863/7087032.pdf
    • http://gexitad.mtpskitchengarden.com.au/uploads/1/3/1/3/131381428/zepole.pdf
    • https://cdn.shopify.com/s/files/1/0435/8940/2783/files/biostar_manual.pdf
    • https://cdn.shopify.com/s/files/1/0428/0261/0335/files/tutitinemibonidusi.pdf
    • https://cdn.shopify.com/s/files/1/0434/5564/3813/files/wodesemotijedozijaz.pdf
    • https://cdn.shopify.com/s/files/1/0437/0956/3045/files/skyrim_hd_texture_packs.pdf
    • https://cdn.shopify.com/s/files/1/0431/0496/0676/files/wotamunobixip.pdf
    • https://cdn.shopify.com/s/files/1/0429/8814/2743/files/press_statistic_in_r.pdf
    • https://cdn.shopify.com/s/files/1/0429/9898/8949/files/english_lessons_for_beginners.pdf
    • https://cdn.shopify.com/s/files/1/0432/5058/1662/files/principles_of_polymerization_solution.pdf
    • https://cdn.shopify.com/s/files/1/0432/2977/3982/files/rokinugezugenafuti.pdf
    • https://cdn.shopify.com/s/files/1/0437/2201/4870/files/jesibazepuxejokovuroxeve.pdf
    • https://cdn.shopify.com/s/files/1/0435/4277/3914/files/dipil.pdf
    • https://cdn.shopify.com/s/files/1/0429/4616/6943/files/46239936149.pdf
    • https://cdn.shopify.com/s/files/1/0431/1518/4295/files/xikodanimamizisivafubo.pdf
    • https://cdn.shopify.com/s/files/1/0432/6280/4136/files/learn_to_speak_english_book_free_download.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_off00007195.bin
ba95a45588b78a235ab01a7bddd3c32dc263b4ccf9ce277e31b325fbdea85f76
pdf-font-stream PDF embedded font (sfnt) at offset 0x7195 5052 bytes
font_01_sfnt_off000082d0.bin
123cef14dbee4334404a89524fab9896901b21ff19278c3156b4d84221305104
pdf-font-stream PDF embedded font (sfnt) at offset 0x82D0 10248 bytes