Malicious PDF — malware analysis report

Static analysis result for SHA-256 84cc58fc23826ffe…

MALICIOUS

PDF

72.4 KB Created: 2020-08-11 05:00:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 609c05b6ebe7daffdc8470f6ddba57d0 SHA-1: f9bd626acb04c94de41aaec4faafb36cd93e4ff7 SHA-256: 84cc58fc23826ffebbe00bb4cb53ef568fbee2e3289479383771a73637f70d40
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=frame+of+reference+physics+pdf'. This indicates the document's primary purpose is to redirect users to a malicious website. The PDF also contains a link farm heuristic, suggesting it's part of a larger SEO poisoning campaign to attract victims. No scripts were extracted from this sample.

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=frame+of+reference+physics+pdf
    • http://files.lplimages.com/uploads/1/3/1/4/131452903/tekibuxezavo-fowudo-domejos.pdf
    • http://files.mainecela.org/uploads/1/3/0/7/130776002/rajuxelowolimu.pdf
    • http://files.heartpieces.net/uploads/1/3/1/3/131379749/3776242.pdf
    • https://cdn.shopify.com/s/files/1/0434/1995/9463/files/67831124839.pdf
    • https://cdn.shopify.com/s/files/1/0434/0432/9127/files/british_english_grammar_rules.pdf
    • https://cdn.shopify.com/s/files/1/0434/1573/2376/files/tujikebikenazijutevul.pdf
    • https://cdn.shopify.com/s/files/1/0432/1368/4891/files/fovebogi.pdf
    • https://cdn.shopify.com/s/files/1/0431/4995/1138/files/xonofe.pdf
    • https://cdn.shopify.com/s/files/1/0431/5525/9560/files/44491289505.pdf
    • https://cdn.shopify.com/s/files/1/0435/7108/5475/files/60795585038.pdf
    • https://cdn.shopify.com/s/files/1/0432/8062/9913/files/fundamentals_of_electrical_engineering_rizzoni.pdf
    • https://cdn.shopify.com/s/files/1/0434/4024/2840/files/pajifagobudeg.pdf
    • https://cdn.shopify.com/s/files/1/0430/3601/6802/files/carte_du_monde.pdf
    • https://cdn.shopify.com/s/files/1/0434/5459/5224/files/boundaries_in_marriage_participant_s_guide.pdf
    • https://cdn.shopify.com/s/files/1/0433/4754/2175/files/calculus_stewart_7th_edition_solutions.pdf
    • https://cdn.shopify.com/s/files/1/0441/1791/7848/files/rational_functions_worksheet.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/
    • https://cdn.shopify.com/s/files/1/0434/0432/9

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c72a.bin
0897228c769a3809e3a1e478446d0f8ea716cfe28124ff7b444dd242f17685cd
pdf-font-stream PDF embedded font (sfnt) at offset 0xC72A 5420 bytes
font_01_sfnt_off0000d973.bin
cc242302bfee80884b752a6884b383a66744ef5c858af52878eb430ec9a639de
pdf-font-stream PDF embedded font (sfnt) at offset 0xD973 11032 bytes
font_02_sfnt_off0000ff6f.bin
ae97ebdbf5cb6679ee3ae7f6f8963da9ec2437ada1f672a33085bc8cbe806833
pdf-font-stream PDF embedded font (sfnt) at offset 0xFF6F 16060 bytes