Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce310079292b5e6b…

MALICIOUS

PDF

43.9 KB Created: 2020-08-31 03:23:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 798244a6019504ad00c10878b26cc4d0 SHA-1: 98b4605df410248c002d3435bbe6a6b445e0bc8e SHA-256: ce310079292b5e6bf8a0ec55606a22f830f0926765662eeb3c7e4902604edada
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many pointing to Shopify domains, suggesting a link farm or SEO poisoning attempt. One critical heuristic identified a link to a known malicious redirector at 'ttraff.ru'. The document body contains a Turkish video title, likely used as bait to encourage clicks on the malicious link. The primary attack vector appears to be directing users to malicious infrastructure via embedded links.

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/wix?keyword=ye%25C5%259Fil+yol+full+izle+t%25C3%25BCrk%25C3%25A7e+dublaj
    • https://cdn.shopify.com/s/files/1/0430/0279/0039/files/padimawedagovuju.pdf
    • https://cdn.shopify.com/s/files/1/0433/8545/4757/files/bunny_wailer_ballroom_floor.pdf
    • https://cdn.shopify.com/s/files/1/0435/5548/7905/files/19182789812.pdf
    • https://cdn.shopify.com/s/files/1/0429/9515/5105/files/23388614298.pdf
    • https://cdn.shopify.com/s/files/1/0437/0071/5674/files/nawonevomoremomelifugexi.pdf
    • https://cdn.shopify.com/s/files/1/0434/7042/2180/files/82532403355.pdf
    • https://cdn.shopify.com/s/files/1/0431/4352/8609/files/xakekalisunenoka.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/sividejujim.pdf
    • https://cdn.shopify.com/s/files/1/0433/5173/6471/files/ac_dc_hells_bells_tab.pdf
    • https://cdn.shopify.com/s/files/1/0427/7973/8278/files/busuxomuxe.pdf
    • https://cdn.shopify.com/s/files/1/0433/3702/3656/files/fodivutikuvezo.pdf
    • https://cdn.shopify.com/s/files/1/0431/6463/1195/files/teviwalisoxojogonip.pdf
    • https://cdn.shopify.com/s/files/1/0438/2287/4781/files/online_editor_replace_pages.pdf
    • https://cdn.shopify.com/s/files/1/0431/2032/8864/files/52114656576.pdf
    • https://cdn.shopify.com/s/files/1/0433/7077/4693/files/63811035096.pdf
    • https://cdn.shopify.com/s/files/1/0435/8042/4351/files/all_passive_forms.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_off00005cca.bin
48e849e17281e99ac73985cf07d3777eac141a11ac66d4a3a2d421a284842733		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5CCA 5664 bytes
font_01_sfnt_off00006fc7.bin
6e218b6e8c3617a4773d60a7199240481edbcc5e0c9b0d56f50bf15bfa57fcac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6FC7 16236 bytes

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