Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2fb0bcd336c5904…

MALICIOUS

PDF

43.5 KB Created: 2020-08-15 13:47:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 69ef6ff966c420d32f43b97c2ee02be4 SHA-1: cbf7042873efb0ce058f117d56352be77d71c67f SHA-256: f2fb0bcd336c590452785749bef5d7d42b372610b6cf0841d39c609f84b4da5a
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, many of which point to a link farm hosted on Shopify. The primary malicious link, "https://ttraff.com/wb?keyword=civic%202007%20manual%20olx", is identified as a malicious redirector. The document body, though heavily obfuscated, contains the text "Civic 2007 manual olx", suggesting a lure to trick users into clicking the malicious link. 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.com/wb?keyword=civic%202007%20manual%20olx
    • http://files.americandancecenters.com/uploads/1/3/0/8/130814052/d035a.pdf
    • http://noniza.alessandronardini.com/uploads/1/3/1/4/131483492/3206487.pdf
    • http://sonovuf.highpeaksconsulting.ca/uploads/1/3/1/4/131438775/vivesaritimozulo.pdf
    • http://files.waynevalleyband.com/uploads/1/3/2/6/132682882/b352ece5b.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/39858795743.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/68769425665.pdf
    • https://cdn.shopify.com/s/files/1/0432/6952/1568/files/57192356624.pdf
    • https://cdn.shopify.com/s/files/1/0433/9348/2902/files/lakekajijivupiriwidalofiw.pdf
    • https://cdn.shopify.com/s/files/1/0436/8682/2053/files/cfd_ansys_fluent_tutorial.pdf
    • https://cdn.shopify.com/s/files/1/0438/2710/1853/files/vumepuzuwofapuwanetusuro.pdf
    • https://cdn.shopify.com/s/files/1/0440/1663/1973/files/4142401616.pdf
    • https://cdn.shopify.com/s/files/1/0427/9474/6023/files/zeroruzotogatumolenunos.pdf
    • https://cdn.shopify.com/s/files/1/0438/2638/0960/files/masofun.pdf
    • https://cdn.shopify.com/s/files/1/0437/4088/9242/files/12831478852.pdf
    • https://cdn.shopify.com/s/files/1/0431/6479/5044/files/top_1000_french_words.pdf
    • https://cdn.shopify.com/s/files/1/0431/1089/1680/files/1225690607.pdf
    • https://cdn.shopify.com/s/files/1/0440/4566/4406/files/download_niv_study_bible_in_format.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_off000061dc.bin
70c292b26b8872ca8555ecbd0881ce631e1968f43b380329507cbe5e16c21033		 pdf-font-stream PDF embedded font (sfnt) at offset 0x61DC 5060 bytes
font_01_sfnt_off0000730a.bin
2044c821f639bdd699566da9fd64b081460233186d8d82020df87a590598f1df		 pdf-font-stream PDF embedded font (sfnt) at offset 0x730A 15012 bytes

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