Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5f3f7a5eb0f6b67…

MALICIOUS

PDF

37.1 KB Created: 2020-08-08 13:18:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ff59675898187edbc821496adaafca8c SHA-1: 92d5f80160f499d9b46fedc0c8986aa713b3d7a3 SHA-256: e5f3f7a5eb0f6b67907705a8502735fdf870582d02c9422e17dee84a9a75e4f3
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on Shopify. One of the primary links, 'https://ttraff.ru/wb?keyword=redmi%20airdots%20twsej04ls%20manual', is flagged as a malicious redirector. This suggests the document's purpose is to drive traffic to malicious infrastructure, likely for phishing or malware distribution. No scripts were extracted, limiting the analysis of direct execution capabilities.

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/wb?keyword=redmi%20airdots%20twsej04ls%20manual
    • http://dawodopi.lynn-gustafson.com/uploads/1/3/0/7/130738799/2bba4ffeb2e217.pdf
    • http://files.focusedlifecoaching.org/uploads/1/3/1/3/131379949/9e07403d3.pdf
    • http://files.itslukemartin.com/uploads/1/3/1/4/131437045/gabowoxadixopefozefo.pdf
    • http://files.macedoniaiowa.com/uploads/1/3/2/6/132680808/6077163.pdf
    • https://cdn.shopify.com/s/files/1/0432/4586/3067/files/solidworks_tutorial_for_beginners.pdf
    • https://cdn.shopify.com/s/files/1/0431/1446/3394/files/jojikupafutid.pdf
    • https://cdn.shopify.com/s/files/1/0431/9064/8996/files/suzibisevim.pdf
    • https://cdn.shopify.com/s/files/1/0432/5412/0606/files/lekikoxuzeweruma.pdf
    • https://cdn.shopify.com/s/files/1/0451/3798/5690/files/collapse_of_bretton_woods_system.pdf
    • https://cdn.shopify.com/s/files/1/0440/6870/0310/files/destination_a1_macmillan.pdf
    • https://cdn.shopify.com/s/files/1/0428/3197/0471/files/kagovuzopimofamalomax.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/56317886700.pdf
    • https://cdn.shopify.com/s/files/1/0431/6128/8868/files/63599224213.pdf
    • https://cdn.shopify.com/s/files/1/0428/3308/4575/files/xalimugut.pdf
    • https://cdn.shopify.com/s/files/1/0433/2892/9960/files/bugox.pdf
    • https://cdn.shopify.com/s/files/1/0429/0999/1075/files/xixiwoparenoxoganazifitat.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_off00005279.bin
0c87c40203bcca4da953f114e6316546b50e0ab15b137316ee198865cfc3ac69		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5279 5376 bytes
font_01_sfnt_off000064be.bin
e60787b1f88c43376a156f6c64f05d173ff1cd04b9c60265faea2875a5c3e074		 pdf-font-stream PDF embedded font (sfnt) at offset 0x64BE 10356 bytes

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