Malicious PDF — malware analysis report

Static analysis result for SHA-256 d7943bf0fc2d470b…

MALICIOUS

PDF

45.7 KB Created: 2020-08-15 12:42:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 83076539e9274f0e3d0595cc00d79de2 SHA-1: fe80900a200728cc3cabf9f90637d08601a66972 SHA-256: d7943bf0fc2d470bc85e56b29e28a588a189fcd182a78af3b565300898ec7e5f
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 external PDF files hosted on various domains, including a redirector. The document body mentions a movie title and includes a URL that appears to be part of a link farm designed to attract traffic. The primary malicious URL, https://ttraff.com/pify?keyword=bhakta+tukaram+telugu+full+movie, is identified as a malicious redirector, suggesting the intent is to lead users to harmful content.

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=bhakta+tukaram+telugu+full+movie
    • http://xaladaj.easetherapy.uk/uploads/1/3/1/4/131437237/tofogixobu.pdf
    • http://files.act2blytheville.org/uploads/1/3/0/7/130739204/7979772.pdf
    • http://files.ghouliesmovies.com/uploads/1/3/0/8/130814308/9493754.pdf
    • https://cdn.shopify.com/s/files/1/0434/3722/8188/files/jiwiloni.pdf
    • https://cdn.shopify.com/s/files/1/0427/6633/6167/files/51168188711.pdf
    • https://cdn.shopify.com/s/files/1/0427/7341/4055/files/bokunapabonujo.pdf
    • https://cdn.shopify.com/s/files/1/0434/1052/2268/files/76580559989.pdf
    • https://cdn.shopify.com/s/files/1/0435/6728/4379/files/beaufort_wind_scale_sea.pdf
    • https://cdn.shopify.com/s/files/1/0433/3387/7914/files/19314958142.pdf
    • https://cdn.shopify.com/s/files/1/0440/8036/5720/files/losireluzopovur.pdf
    • https://cdn.shopify.com/s/files/1/0429/9682/6273/files/zamavusasafofivozele.pdf
    • https://cdn.shopify.com/s/files/1/0431/0558/3266/files/35412008065.pdf
    • https://cdn.shopify.com/s/files/1/0432/5936/3478/files/80234274860.pdf
    • https://cdn.shopify.com/s/files/1/0430/5967/5290/files/caselet_di_for_bank_po.pdf
    • https://cdn.shopify.com/s/files/1/0432/3665/5259/files/nokisej.pdf
    • https://cdn.shopify.com/s/files/1/0438/0524/5597/files/remote_support_engineer_interview_questions_and_answers.pdf
    • https://cdn.shopify.com/s/files/1/0427/4287/4278/files/valudagatinonijuvi.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_off00007650.bin
c0860c4bb25951b6b4f6531adcd19534603b311cbe5290699e2ee20b60886722		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7650 5176 bytes
font_01_sfnt_off000087d8.bin
0ae62bb1cc392ed653676b16b2af644e8932cfbf5aa66809a6c39113564e21a9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x87D8 9944 bytes

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