Malicious PDF — malware analysis report

Static analysis result for SHA-256 59c3665c86eab940…

MALICIOUS

PDF

46.9 KB Created: 2020-08-07 19:27:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 74704fb275bd725c628488529c07ba61 SHA-1: b579c987ab03a405e1662b7d75e2ed1d0588d61d SHA-256: 59c3665c86eab940a2916f4a14f400befe9caafb518cb69ac8b7eda75b53acd0
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, which is the primary attack vector. It also exhibits characteristics of a link farm, with numerous external PDF links, many hosted on Shopify. The embedded URL points to a redirector that likely leads to a malicious payload or phishing page. 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.cc/pify?keyword=arteria+iliaca+externa+pdf
    • http://files.planbfundingoptions.com/uploads/1/3/1/3/131398244/1008300.pdf
    • http://files.localrootsjuiceco.com/uploads/1/3/1/8/131856446/doxaxalisak_xalimakumopeli_kawufulovaru_subixorezi.pdf
    • http://files.gdshub.com/uploads/1/3/0/7/130739238/kusowiderozexuguxelo.pdf
    • https://cdn.shopify.com/s/files/1/0432/8793/7179/files/wosixavura.pdf
    • https://cdn.shopify.com/s/files/1/0445/3344/8868/files/root_cause_failure_analysis.pdf
    • https://cdn.shopify.com/s/files/1/0435/6944/7073/files/dovizutivizu.pdf
    • https://cdn.shopify.com/s/files/1/0432/2649/7182/files/60926971496.pdf
    • https://cdn.shopify.com/s/files/1/0437/9371/1265/files/basic_definitions_in_chemistry.pdf
    • https://cdn.shopify.com/s/files/1/0431/2170/5124/files/drawing_idea_generator.pdf
    • https://cdn.shopify.com/s/files/1/0438/4977/7312/files/22754919863.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/26450106566.pdf
    • https://cdn.shopify.com/s/files/1/0437/7152/7325/files/vepabidurijemit.pdf
    • https://cdn.shopify.com/s/files/1/0440/3865/2069/files/taxijejirapotanof.pdf
    • https://cdn.shopify.com/s/files/1/0431/6826/8456/files/how_to_bring_up_coordinates_in_minecraft.pdf
    • https://cdn.shopify.com/s/files/1/0433/5419/4085/files/91030506917.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_off00007657.bin
e81360bc2d88f5d35ebe041df9cbe2d659c8aa069884b3af64c458792747f945		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7657 5028 bytes
font_01_sfnt_off00008788.bin
1de973b9e77a4cdef9c60b9c1cc5f2a41f9a3a36e8a947fcfca79ac4c9a4bcd6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8788 11728 bytes

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