Malicious PDF — malware analysis report

Static analysis result for SHA-256 96735ce08b59578f…

MALICIOUS

PDF

38.0 KB Created: 2020-08-03 05:45:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4a006ef3f00f9ec6a35ed8aa0aaa657b SHA-1: ca43b156622db7936e6edd8b269dca1649985f60 SHA-256: 96735ce08b59578f9c72cb8b57b28de47464ab60f207576e9473b86acf62a6b1
120 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1204.002 Malicious Link

The PDF document contains a prominent link to 'ttraff.ru' with the keyword 'disable_macafee_on_mac', indicating a social engineering attempt to trick users into disabling security software. The document also functions as a link farm, pointing to numerous other PDF files hosted on Shopify and other domains, likely for SEO poisoning or to distribute further malicious content. The embedded URLs suggest a phishing or malware distribution campaign.

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/pify?keyword=disable+macafee+on+mac
    • http://files.calhighdance.com/uploads/1/3/1/8/131859993/f980ffb5.pdf
    • http://files.marsal-solutions.com/uploads/1/3/2/6/132696621/be0f3bb339be3c.pdf
    • http://files.goorooglass.com/uploads/1/3/0/8/130813953/4a2d3bea.pdf
    • https://cdn.shopify.com/s/files/1/0430/6989/8914/files/jipadowotevabupokopuz.pdf
    • https://cdn.shopify.com/s/files/1/0432/0172/4580/files/30255575558.pdf
    • https://cdn.shopify.com/s/files/1/0429/8833/9354/files/21853645910.pdf
    • https://cdn.shopify.com/s/files/1/0431/9988/9569/files/xuwalisowojedelijapeve.pdf
    • https://cdn.shopify.com/s/files/1/0435/2717/6344/files/fuzenafonaje.pdf
    • https://cdn.shopify.com/s/files/1/0437/8319/2727/files/vugijugemifokefo.pdf
    • https://cdn.shopify.com/s/files/1/0432/4841/8973/files/91352035567.pdf
    • https://cdn.shopify.com/s/files/1/0434/0501/7249/files/3742253612.pdf
    • https://cdn.shopify.com/s/files/1/0434/2392/4376/files/46448528726.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_off00005758.bin
4a3ad5fdf0db1e7cc37eeb0f9236749e181ccf1a216faa692ed212135daf4d73		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5758 5068 bytes
font_01_sfnt_off0000688f.bin
e0356bbfba324a97eab0d1841de07376789e1ad2a00c2bb88a09218908c7894b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x688F 10276 bytes

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