Malicious PDF — malware analysis report

Static analysis result for SHA-256 d930b5611da97e3d…

MALICIOUS

PDF

61.8 KB Created: 2020-08-04 08:21:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3f695b19b378a716e1744f5a2f9375a9 SHA-1: 30ce144f1e623406e30c3efeef9734d34d3376af SHA-256: d930b5611da97e3d37741e3165c2c8ea2ebc4f0e2ac2b1d3e6bebe48153c2498
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, many pointing to Shopify domains, which is indicative of a link farm or SEO spam tactic. One critical heuristic identified a link to a known malicious redirector infrastructure at `https://ttraff.ru/pify?keyword=sql+server+database+query+examples+pdf`. This suggests the document's primary purpose is to redirect users to malicious sites, likely for phishing or malware distribution.

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=sql+server+database+query+examples+pdf
    • http://files.cheyennepuga.com/uploads/1/3/1/8/131856435/gigemodeta_dujuvop.pdf
    • http://files.strikeposes.com/uploads/1/3/0/8/130874304/bazunuja.pdf
    • http://files.almathea18gallery.com/uploads/1/3/2/7/132740181/vepunuja-zapitorilapa-bomene.pdf
    • http://files.keyscientific.net/uploads/1/3/2/6/132681556/pobesebitis_xojaguluz_texapapikesemo_sixixeva.pdf
    • https://cdn.shopify.com/s/files/1/0431/6587/6379/files/wukasinijazejezanujoxamo.pdf
    • https://cdn.shopify.com/s/files/1/0429/4115/3439/files/65390446879.pdf
    • https://cdn.shopify.com/s/files/1/0431/9959/4656/files/xoforoxoxeboje.pdf
    • https://cdn.shopify.com/s/files/1/0433/2562/0374/files/42453773328.pdf
    • https://cdn.shopify.com/s/files/1/0431/0397/7634/files/duwawoxomibepalawinefir.pdf
    • https://cdn.shopify.com/s/files/1/0428/1604/5222/files/79195183249.pdf
    • https://cdn.shopify.com/s/files/1/0435/4513/3207/files/11897000056.pdf
    • https://cdn.shopify.com/s/files/1/0431/5666/8565/files/buvatavelidomiwivizinojif.pdf
    • https://cdn.shopify.com/s/files/1/0433/4718/1718/files/faxojowoletuvifawudisu.pdf
    • https://cdn.shopify.com/s/files/1/0430/0197/0837/files/88459503503.pdf
    • https://cdn.shopify.com/s/files/1/0431/7511/6961/files/35727505419.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_off0000b161.bin
42a171a57e5fa17724ee0a56ed6024d635fceac88f7d984ee24a28a57eb72b8e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB161 5784 bytes
font_01_sfnt_off0000c509.bin
86f2f1cd1c825dc6f0a45e364ccd0d3ddf1dcf6a94232c65c82ef27d5dc11ab2		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC509 10872 bytes

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