Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d10b9ebf019e7b0…

MALICIOUS

PDF

39.9 KB Created: 2020-08-24 01:37:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 520eef578a05ff644f60ee11e4cee5f2 SHA-1: 81fa57a688730e2b19c9a95cba8dab1b52a5ef33 SHA-256: 1d10b9ebf019e7b034c780c0fdb83d3e9983583ff79cc5fede0ee60926aa51ef
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, specifically pointing to 'https://ttraff.ru/pify?keyword=information+report+about+pandas'. This indicates an attempt to direct users to a potentially harmful site under the guise of an information report. The document body, though heavily obfuscated, also contains this URL, reinforcing the malicious intent. No scripts were extracted, and the file type is PDF, suggesting a social engineering lure.

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=information+report+about+pandas
    • http://files.111pta.org/uploads/1/3/0/7/130775635/nakesozakaxot.pdf
    • https://cdn.shopify.com/s/files/1/0430/9227/9445/files/wizokesifofixasevamafizuk.pdf
    • https://cdn.shopify.com/s/files/1/0434/0465/6790/files/63772394499.pdf
    • https://cdn.shopify.com/s/files/1/0430/7514/1783/files/recognizing_communication_barriers_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0430/5387/5357/files/the_twins_effect_ii_2004.pdf
    • https://cdn.shopify.com/s/files/1/0429/6006/0567/files/82133168239.pdf
    • https://cdn.shopify.com/s/files/1/0437/8850/1143/files/digebovirak.pdf
    • https://cdn.shopify.com/s/files/1/0429/6274/7548/files/43887673947.pdf
    • https://cdn.shopify.com/s/files/1/0435/5165/4047/files/97840146862.pdf
    • https://cdn.shopify.com/s/files/1/0429/5557/1353/files/xogixalilebapekujovit.pdf
    • https://cdn.shopify.com/s/files/1/0435/1390/5311/files/in_between_the_sheets_remix.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_off00005eb2.bin
1a104c9eaa3b799e627625d7746dcde09db97b0f1742101bb59c31fa8fc288dd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5EB2 5232 bytes
font_01_sfnt_off00007051.bin
7c749b644ca36acb14b9fc607e60d549bd3433ab7b588ae84bb5bad4294787f8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7051 10244 bytes

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