Malicious PDF — malware analysis report

Static analysis result for SHA-256 296f4f5789124e1d…

MALICIOUS

PDF

53.4 KB Created: 2020-08-14 00:59:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 49f78d5ed1036b39318a0ccf4a90b70e SHA-1: 91a6fd1738f3782968b78d73a2f794483620f7d4 SHA-256: 296f4f5789124e1dd0f7b2691256abc8e658cd790a39d155c8fe4ae79ab150ac
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, with a critical heuristic firing indicating a link farm pointing to a malicious redirector. The primary malicious URL identified is https://ttraff.com/pify?keyword=benign+positional+vertigo%2528+bppv+pdf. While many other links point to benign Shopify domains, the presence of the redirector suggests an attempt to obscure the final malicious destination, 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.com/pify?keyword=benign+positional+vertigo%2528+bppv+pdf
    • http://liwewal.episcopalyouthcamp.org/uploads/1/3/1/3/131380429/8509820.pdf
    • http://files.pharmavetsa.com/uploads/1/3/2/8/132814276/9259902.pdf
    • http://files.danawensley.com/uploads/1/3/1/4/131483153/9e5f3.pdf
    • https://cdn.shopify.com/s/files/1/0433/9105/8083/files/canon_rebel_g.pdf
    • https://cdn.shopify.com/s/files/1/0434/6544/1430/files/bidurolobiwajufo.pdf
    • https://cdn.shopify.com/s/files/1/0429/7408/5279/files/83022187298.pdf
    • https://cdn.shopify.com/s/files/1/0431/1895/2612/files/18125764360.pdf
    • https://cdn.shopify.com/s/files/1/0438/5452/8677/files/fipovoxepisaz.pdf
    • https://cdn.shopify.com/s/files/1/0431/8996/0861/files/tununulagidolaxewajuri.pdf
    • https://cdn.shopify.com/s/files/1/0436/3649/0398/files/neet_chemistry_formula_download.pdf
    • https://cdn.shopify.com/s/files/1/0428/8030/3263/files/1749109066.pdf
    • https://cdn.shopify.com/s/files/1/0431/6073/1808/files/55879329354.pdf
    • https://cdn.shopify.com/s/files/1/0431/6885/8280/files/wejafobesudukawogonomudoz.pdf
    • https://cdn.shopify.com/s/files/1/0435/6974/1983/files/fibutiliwodemevamuvud.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_off00009216.bin
bfb6f88d8cb4201e705d783b254b166c554dfc2e21cb602773661ed07ec5cdf9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9216 5536 bytes
font_01_sfnt_off0000a500.bin
ff98b9b2fb6331aaa70345ef42026f234fd09d1faa21fa334ab4eb38aadd5362		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA500 10404 bytes

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