Malicious PDF — malware analysis report

Static analysis result for SHA-256 dde65c1d8a059417…

MALICIOUS

PDF

45.7 KB Created: 2020-08-11 07:18:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9607e0593309c388482865bf4054c973 SHA-1: 3de68b602c56fd2b4485397112f156a6447682fc SHA-256: dde65c1d8a0594172317a05254a1674a780f818cbad9de5cb7f74aa1cddb0717
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Phishing: Spearphishing Attachment T1204.002 Malicious Link

The PDF file was identified as malicious due to its inclusion of a large number of external links, a technique often used for SEO poisoning or to drive traffic to malicious sites. One critical heuristic firing indicates a link to a known malicious redirector infrastructure at 'ttraff.ru'. While many other links point to benign Shopify domains, the presence of the redirector and the sheer volume of links suggest a malicious intent to manipulate search engine results or direct users to harmful 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=agriculture+in+ancient+egypt+pdf
    • http://files.raymondjusticecreations.com/uploads/1/3/2/7/132741029/suxajo.pdf
    • http://files.jennifersmusing.com/uploads/1/3/1/4/131407571/7a6a683681e849f.pdf
    • http://files.thatweddingninja.com/uploads/1/3/0/7/130739549/bixekojufopezuri.pdf
    • http://files.rawseries.org/uploads/1/3/1/3/131384401/nurukudezeseg.pdf
    • http://files.ethelbustamante.net/uploads/1/3/1/4/131406356/7012749.pdf
    • https://cdn.shopify.com/s/files/1/0434/0737/6546/files/fifumulutojoletebogil.pdf
    • https://cdn.shopify.com/s/files/1/0434/4836/9319/files/ap_us_history_chapter_6.pdf
    • https://cdn.shopify.com/s/files/1/0434/0459/1255/files/guxipijokulozebisi.pdf
    • https://cdn.shopify.com/s/files/1/0430/5344/9367/files/entrepreneurship_characteristics.pdf
    • https://cdn.shopify.com/s/files/1/0429/5943/7975/files/88687304273.pdf
    • https://cdn.shopify.com/s/files/1/0436/0873/5907/files/64725675685.pdf
    • https://cdn.shopify.com/s/files/1/0435/7577/1304/files/36501766234.pdf
    • https://cdn.shopify.com/s/files/1/0435/9385/9231/files/building_energy_audit_report.pdf
    • https://cdn.shopify.com/s/files/1/0430/1760/1181/files/5988_e.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000067d0.bin
5887f09ea127d2499c9c94bc14a8afa9412051cec57bdf8f9cd0a50a5a328349		 pdf-font-stream PDF embedded font (sfnt) at offset 0x67D0 5008 bytes
font_01_sfnt_off000078ec.bin
6aea9442ff155094cac112f42f236c5ab983c379934a299f01a1d45c59cdfa19		 pdf-font-stream PDF embedded font (sfnt) at offset 0x78EC 10264 bytes
font_02_sfnt_off00009bc6.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9BC6 4324 bytes

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