Malicious PDF — malware analysis report

Static analysis result for SHA-256 9b5d5fe6d3061f8d…

MALICIOUS

PDF

42.9 KB Created: 2020-08-27 19:54:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 44edae66fda2552dbbcf1501c3e70d8f SHA-1: be5b6d1addbefc72a715af1f4017ac9166909b8a SHA-256: 9b5d5fe6d3061f8de9d240857804736b7b6d8597e79bd81fc496af70de618404
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, many of which point to a link farm infrastructure hosted on ttraff.ru. This infrastructure is known to redirect to malicious sites. The document body, though heavily obfuscated, also contains the URL https://ttraff.ru/pify?keyword=runestones+witcher+3, reinforcing the malicious redirection intent. The presence of numerous links to Shopify domains, while some are benign, likely serves to obscure the malicious redirector among legitimate-looking content.

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=runestones+witcher+3
    • http://zugalexil.peninsulafilmfestival.com/uploads/1/3/1/3/131381078/pidagededojibuxis.pdf
    • http://rezokami.moneygramvnvn.com/uploads/1/3/1/1/131164250/d09c506dfd64e.pdf
    • http://lawufu.shadowcreekchoir.com/uploads/1/3/1/3/131381762/056378c.pdf
    • https://cdn.shopify.com/s/files/1/0431/8298/1281/files/gw2_cooking_crafting_guide_1-_400.pdf
    • https://cdn.shopify.com/s/files/1/0439/5725/6350/files/66678253186.pdf
    • https://cdn.shopify.com/s/files/1/0433/9128/7450/files/unity_change_text_color.pdf
    • https://cdn.shopify.com/s/files/1/0433/9243/4326/files/brazil_world_cup_font.pdf
    • https://cdn.shopify.com/s/files/1/0432/0601/7186/files/tisigavav.pdf
    • https://cdn.shopify.com/s/files/1/0427/7560/9510/files/sevusat.pdf
    • https://cdn.shopify.com/s/files/1/0428/6559/0438/files/pefemutivina.pdf
    • https://cdn.shopify.com/s/files/1/0434/0734/3779/files/elliatt_clothing_size_guide.pdf
    • https://cdn.shopify.com/s/files/1/0462/7061/1613/files/gikutovepazibabazadeko.pdf
    • https://cdn.shopify.com/s/files/1/0431/9064/8994/files/fukutofitepuzif.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_off00006082.bin
34862df6e204ba32add9630961644444f13c4aff2f56e61a8ea297733e2c32e4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6082 4908 bytes
font_01_sfnt_off0000714a.bin
77c4596c0eb94a6bbb4174abc4c9beb993f07151798cc3327d89ebb85e144137		 pdf-font-stream PDF embedded font (sfnt) at offset 0x714A 14668 bytes

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