Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e5c40355f713abd…

MALICIOUS

PDF

41.7 KB Created: 2020-09-03 00:25:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6899400d2b542a712fa5bf131d754c6b SHA-1: 5fe251013a9ef3a3125bedbf8bb2b867a3be3055 SHA-256: 2e5c40355f713abd7efc3c08ab25a1b66012ca0b6c6ba771600045d72ab8537d
120 Risk Score

Malware Insights

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

The PDF file contains a link farm of numerous embedded URLs, with the primary one leading to a known malicious redirector. The document body, though heavily obfuscated, contains the target URL. This suggests a social engineering attack aimed at directing users to malicious infrastructure.

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=how+to+say+bed+sheet+in+spanish
    • https://cdn.shopify.com/s/files/1/0430/7750/1079/files/malibu_boat_owners_manual.pdf
    • https://cdn.shopify.com/s/files/1/0429/9902/1717/files/46010948040.pdf
    • https://cdn.shopify.com/s/files/1/0439/2216/1832/files/60459405166.pdf
    • https://cdn.shopify.com/s/files/1/0430/9703/0817/files/30091959568.pdf
    • https://cdn.shopify.com/s/files/1/0439/3756/2779/files/refeneruvubixasijasel.pdf
    • https://static.usrfiles.com/ugd/0d2908_f28866e736024a768df6c8c0161fe494.pdf
    • https://cdn.shopify.com/s/files/1/0438/3234/4736/files/ios_icon_sizes_cheat_sheet.pdf
    • https://cdn.shopify.com/s/files/1/0430/8425/1285/files/nedebulirolomipujugiganup.pdf
    • https://cdn.shopify.com/s/files/1/0430/2995/4721/files/31076715789.pdf
    • https://cdn.shopify.com/s/files/1/0434/0439/4646/files/apprendistato_professionalizzante_commercio_piano_formativo.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/
    • https://cdn.shopify.com/s/files/1/0434/0439/4646/files/apprendistato_professionalizzante_commercio_piano_formativ

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000659e.bin
fa7d89a466521b3b09d380c783b37d474e7f0f2fa063f8b99e532ee70eeb58db		 pdf-font-stream PDF embedded font (sfnt) at offset 0x659E 5216 bytes
font_01_sfnt_off00007769.bin
3173273079d9a377c544d1fc7b474f0ea8d9bd706edfe0ab578b83c50126d8a5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7769 10140 bytes

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