Malicious PDF — malware analysis report

Static analysis result for SHA-256 edd812772a15f423…

MALICIOUS

PDF

36.8 KB Created: 2020-08-15 13:47:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5744c6cee8377c0b2124cd04a59ded0c SHA-1: 1d4c34d6eb29b92376b929b34425d9534e06cbec SHA-256: edd812772a15f4238606668abec54af316365d924766edfc77b00ad63d4a49a2
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, identified as a PDF link farm. One of these links, 'https://ttraff.ru/wb?keyword=ransomes%20gang%20mower%20manual', is flagged as a malicious redirector. The document body, though heavily obfuscated, contains references to this URL and other Shopify-hosted PDF links, suggesting an attempt to manipulate search engine results or redirect users to 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.ru/wb?keyword=ransomes%20gang%20mower%20manual
    • http://mevakez.andrerowejr.com/uploads/1/3/1/3/131398428/zugepo_kokegitevowedof_geligovanegabu.pdf
    • https://cdn.shopify.com/s/files/1/0431/6741/6488/files/79257371661.pdf
    • https://cdn.shopify.com/s/files/1/0440/4133/9045/files/78366921892.pdf
    • https://cdn.shopify.com/s/files/1/0430/6678/5949/files/22358972168.pdf
    • https://cdn.shopify.com/s/files/1/0439/5145/6411/files/kotaj.pdf
    • https://cdn.shopify.com/s/files/1/0429/4213/6476/files/sijigusijemilata.pdf
    • https://cdn.shopify.com/s/files/1/0433/5288/3352/files/adobe_flash_cs3_download.pdf
    • https://cdn.shopify.com/s/files/1/0429/8955/1770/files/67353795667.pdf
    • https://cdn.shopify.com/s/files/1/0428/5438/3782/files/potofebazuba.pdf
    • https://cdn.shopify.com/s/files/1/0440/6483/3686/files/31348919066.pdf
    • https://cdn.shopify.com/s/files/1/0430/6858/8185/files/the_sociopath_next_door_espaol.pdf
    • https://cdn.shopify.com/s/files/1/0431/1384/0794/files/mabirojegagomala.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_off000051b3.bin
6468607e54a65643d9aacffb30e48d9e1817dd1755ac59a9273d73f241628ce9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x51B3 5104 bytes
font_01_sfnt_off00006310.bin
317bf63160d8f0b3de82813f58ac2e916d23f2003491aba767f5ff588d955f3b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6310 10788 bytes

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