Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1e975193f781414…

MALICIOUS

PDF

43.9 KB Created: 2020-08-22 22:16:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 667710fd50a82e82d32d892e7daf3a3e SHA-1: 0edb25a241a1da3e938613b84f12b65fab939c53 SHA-256: e1e975193f7814142118c69ab0066c94575f31f108126c15f16dc9aa20e20115
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.ru/pify?keyword=video+er+ios+browser'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, many hosted on cdn.shopify.com. The document body contains a URL that appears to be the same malicious redirector. These elements strongly suggest the document's primary purpose is to redirect 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/pify?keyword=video+er+ios+browser
    • http://files.cadecim.com/uploads/1/3/2/6/132680986/bovelolebiv.pdf
    • http://files.mygingko.com/uploads/1/3/1/8/131858661/sukurevibaneb_jemewonetimoki.pdf
    • http://files.jamestruslerphotography.com/uploads/1/3/2/7/132712040/ea5ff37160a7.pdf
    • http://files.kspaceonline.com/uploads/1/3/1/3/131380868/b7e90.pdf
    • http://files.darynandsimon.com/uploads/1/3/1/6/131606630/tojasejaj-busik-falar-gemexiwonaw.pdf
    • https://cdn.shopify.com/s/files/1/0433/3921/9099/files/44535917306.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nuruge.pdf
    • https://cdn.shopify.com/s/files/1/0431/0522/2822/files/champneys_tring_treatments.pdf
    • https://cdn.shopify.com/s/files/1/0447/0459/6122/files/edexcel_a_level_biology_b_notes.pdf
    • https://cdn.shopify.com/s/files/1/0430/9424/5537/files/german_english_dictionary.pdf
    • https://cdn.shopify.com/s/files/1/0443/8884/3686/files/28004287505.pdf
    • https://cdn.shopify.com/s/files/1/0463/0570/6146/files/budurapijevupufofex.pdf
    • https://cdn.shopify.com/s/files/1/0437/8545/3728/files/ww2_map_of_europe_allies_and_axis.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_off00006f4c.bin
48bfae23cc35f597fb6461a10830604d1d5d32da30db842b163b607d5c315efb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F4C 4772 bytes
font_01_sfnt_off00007fae.bin
312df87a17bb111d3126ee77af82a61b8303abb5d3759b43b9450feb18352370		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7FAE 10420 bytes

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