Malicious PDF — malware analysis report

Static analysis result for SHA-256 246ea80a4b3e6718…

MALICIOUS

PDF

38.8 KB Created: 2020-08-17 00:02:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5808bb2b22385c8d101eaabfcf41b2ac SHA-1: 9ea016f3101f130a413032d5bcdcfdd8ba0e40e9 SHA-256: 246ea80a4b3e67185437e700c8077f01feb4ed2fe1263799c34126541b471169
120 Risk Score

Malware Insights

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

The PDF file contains a link farm and a direct link to a known malicious redirector, indicating a phishing or scam attempt. The document body, though heavily obfuscated, contains text related to an 'mp online kiosk agreement format' and the malicious URL. The primary malicious URL is https://ttraff.ru/pify?keyword=mp+online+kiosk+agreement+format, which is likely used to redirect the user to a malicious site. The presence of numerous Shopify links suggests an attempt to blend in with legitimate content while distributing the malicious payload.

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=mp+online+kiosk+agreement+format
    • http://files.shoploveis.com/uploads/1/3/1/4/131452887/zazopulig.pdf
    • http://files.bakingthebakeoff.com/uploads/1/3/0/7/130775561/2492813.pdf
    • http://zomopose.mjohnandson.com/uploads/1/3/2/6/132680866/bijun-sadowitenufanaf.pdf
    • http://files.chippersdesigns.co.uk/uploads/1/3/1/3/131379700/pamalireka_salazanatozu_fakazixiwel_kurakajibivuj.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/4107173541.pdf
    • https://cdn.shopify.com/s/files/1/0431/6551/5933/files/54750537118.pdf
    • https://cdn.shopify.com/s/files/1/0430/5059/8562/files/givazedigikuzufojivef.pdf
    • https://cdn.shopify.com/s/files/1/0432/9200/0406/files/velolodot.pdf
    • https://cdn.shopify.com/s/files/1/0434/6223/0181/files/bufaro.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/75904593322.pdf
    • https://cdn.shopify.com/s/files/1/0431/1918/1985/files/78475068821.pdf
    • https://cdn.shopify.com/s/files/1/0440/0994/7301/files/detalunibemav.pdf
    • https://cdn.shopify.com/s/files/1/0434/5472/6310/files/vunalukavilixeja.pdf
    • https://cdn.shopify.com/s/files/1/0430/9037/8909/files/39211660107.pdf
    • https://cdn.shopify.com/s/files/1/0434/5744/6038/files/bharathiar_kavidhaigal_with_meaning.pdf
    • https://cdn.shopify.com/s/files/1/0431/2816/0420/files/kendall_atkinson_an_introduction_to_numerical_analysis.pdf
    • https://cdn.shopify.com/s/files/1/0435/4693/5460/files/41436511535.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_off00005a00.bin
5c872306394dac136f99b7d9aeaba2c334f79c9b76295728a1d3bc3b8f47f8e1
pdf-font-stream PDF embedded font (sfnt) at offset 0x5A00 5288 bytes
font_01_sfnt_off00006bf1.bin
793439b116ed780d76cae78b5116126be5bb3f3789c07ac525a835ca4ef963c2
pdf-font-stream PDF embedded font (sfnt) at offset 0x6BF1 9972 bytes