Malicious PDF — malware analysis report

Static analysis result for SHA-256 20375f128f8bd6ea…

MALICIOUS

PDF

44.2 KB Created: 2020-08-21 22:45:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 574abc205d32d5ac536ad01107cdc0a8 SHA-1: 00dbd6c0f74b0dc96a2950626f36959118bc0383 SHA-256: 20375f128f8bd6ea7a462e99f00531387927411b60ead8d95a3145e79f48bd07
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, which is also present in the document body. This link, 'https://ttraff.cc/pify?keyword=lagi+hai+teri+aadat+song++mp4', is designed to redirect users to potentially harmful content. The file also exhibits characteristics of a link farm, with numerous embedded URLs pointing to various PDF documents, some of which are hosted on potentially suspicious domains.

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.cc/pify?keyword=lagi+hai+teri+aadat+song++mp4
    • http://files.omsbands.com/uploads/1/3/1/3/131379732/tuxuxopof.pdf
    • http://rexib.helenharaldsen.co.uk/uploads/1/3/0/7/130776886/vetedimupafatude.pdf
    • http://files.katherienclairvoyant.com/uploads/1/3/1/6/131606330/fejupixapimoj_kukazotiwutamor_xivawowe_jogidizix.pdf
    • https://cdn.shopify.com/s/files/1/0434/8814/9668/files/boolean_search_cheat_sheet.pdf
    • https://cdn.shopify.com/s/files/1/0431/9599/0175/files/91956474158.pdf
    • https://cdn.shopify.com/s/files/1/0434/8038/3653/files/visit_an_apiculture_centre_and_gather_information_about_it.pdf
    • https://cdn.shopify.com/s/files/1/0431/0492/7905/files/high_school_drawing_book.pdf
    • https://cdn.shopify.com/s/files/1/0434/0128/1701/files/mafedonesewet.pdf
    • https://cdn.shopify.com/s/files/1/0435/0866/2440/files/45311242250.pdf
    • https://cdn.shopify.com/s/files/1/0441/3577/6408/files/72398519767.pdf
    • https://cdn.shopify.com/s/files/1/0435/5814/2120/files/cricket_information_in_marathi_download.pdf
    • https://cdn.shopify.com/s/files/1/0437/3318/8759/files/farmacos_antagonistas_de_calcio.pdf
    • https://cdn.shopify.com/s/files/1/0433/0445/2246/files/bovupikikiwojexowusosoja.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_off00007014.bin
ffc051ff37b43add155e41e812efc7cdf7d322db26f399b1311f28af0e4cbfa2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7014 5368 bytes
font_01_sfnt_off00008233.bin
7a193745ed59e6cb15eb43391bd5358342e60bdbc6e4fc69e9c6ade16c48c56c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8233 10072 bytes

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