Malicious PDF — malware analysis report

Static analysis result for SHA-256 f5efcbbe14b32693…

MALICIOUS

PDF

44.4 KB Created: 2020-08-09 02:13:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4f9d75582f51474e97d6c0e4c1ef7586 SHA-1: 88309e7dd52bf5679269c712e7009a32f5f7308c SHA-256: f5efcbbe14b32693e505bc3bd03fb0e900f7f2e39fdc2af08426008c3d005c8e
120 Risk Score

Malware Insights

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

The PDF contains a link farm designed to appear as a legitimate download for 'English premier league fixtures'. The primary link, however, redirects through ttraff.com, a known malicious redirector, to ultimately serve malicious content. The document body and embedded links strongly suggest a phishing or malware delivery attempt disguised as a sports-related download.

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=english+premier+league+fixtures+pdf+download
    • http://files.foxxpropertiesllc.com/uploads/1/3/1/8/131871602/susodegenusafamazufa.pdf
    • http://files.ibiogen.eu/uploads/1/3/1/4/131406433/3822147.pdf
    • http://files.nasuwtrochdale.org/uploads/1/3/0/7/130739032/277874.pdf
    • http://files.havenesthetics.com/uploads/1/3/1/4/131453605/kipoxawijexun_nasobibin.pdf
    • https://cdn.shopify.com/s/files/1/0430/2028/8153/files/48832486221.pdf
    • https://cdn.shopify.com/s/files/1/0430/4633/8709/files/49915253485.pdf
    • https://cdn.shopify.com/s/files/1/0429/1028/5990/files/51197601571.pdf
    • https://cdn.shopify.com/s/files/1/0437/0386/1401/files/kalurogetuzuxixomud.pdf
    • https://cdn.shopify.com/s/files/1/0435/9749/6488/files/lakamodovaridokikunarilik.pdf
    • https://cdn.shopify.com/s/files/1/0432/9698/1147/files/makaxisejizo.pdf
    • https://cdn.shopify.com/s/files/1/0427/8855/2870/files/weather_channel_new_braunfels.pdf
    • https://cdn.shopify.com/s/files/1/0434/0776/9752/files/lotadirubugup.pdf
    • https://cdn.shopify.com/s/files/1/0427/9946/4611/files/19052150112.pdf
    • https://cdn.shopify.com/s/files/1/0435/6079/6318/files/75967337289.pdf
    • https://cdn.shopify.com/s/files/1/0434/5423/4785/files/prevention_of_diabetes_mellitus.pdf
    • https://cdn.shopify.com/s/files/1/0428/7243/8947/files/75179097168.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_off0000669d.bin
1d92ae81c4ad8f4c3f8996cb20e480d258940db79dfadb90b0a5f865da884d19		 pdf-font-stream PDF embedded font (sfnt) at offset 0x669D 5572 bytes
font_01_sfnt_off0000797b.bin
e8f987881fe718c57a5ca383241cff8692e60ae7e3eebc18d6557d40a4fd9589		 pdf-font-stream PDF embedded font (sfnt) at offset 0x797B 13904 bytes

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