Malicious PDF — malware analysis report

Static analysis result for SHA-256 400c85cf32c39bf7…

MALICIOUS

PDF

40.1 KB Created: 2020-08-30 20:40:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7fe64ffbc13453e96ddab91753687270 SHA-1: 0db91bad970b0ae4f147d4fce7836601adcad91c SHA-256: 400c85cf32c39bf74575a5cb1e61dbc99c4b564a1687162e2bf477d62e59f67d
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a significant number of embedded links, with one heuristic specifically flagging it as a 'PDF_SEO_LINK_FARM'. The primary malicious link identified is 'https://ttraff.com/wix?keyword=judge+edward+garrison', which is categorized as a malicious redirector. The document body is heavily obfuscated and appears to contain the malicious URL, suggesting a phishing or malware distribution attempt.

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.com/wix?keyword=judge+edward+garrison
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/48975286879.pdf
    • https://cdn.shopify.com/s/files/1/0430/8385/8080/files/90979751206.pdf
    • https://cdn.shopify.com/s/files/1/0433/7827/8563/files/stick_on_laminate_sheets_bunnings.pdf
    • https://cdn.shopify.com/s/files/1/0435/5905/9615/files/61976920740.pdf
    • https://static.usrfiles.com/ugd/fbccce_4670f4dbed6646eda32d615fe63fbc60.pdf
    • https://static.usrfiles.com/ugd/b8c837_4db56a3895fa4965a81bf66695c320eb.pdf
    • https://static.usrfiles.com/ugd/87fdc7_fa885488e2c841acb8ec55519fc8f3b5.pdf
    • https://cdn.shopify.com/s/files/1/0439/5512/6430/files/80589598975.pdf
    • https://cdn.shopify.com/s/files/1/0435/1806/6842/files/52688392762.pdf
    • https://cdn.shopify.com/s/files/1/0433/0287/9387/files/jidudidebavoluxakodop.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_off00005f32.bin
af272d011d7c1f074686c4fea479e74de6e923e19ff315dae3c91fb1e3b565d8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F32 5044 bytes
font_01_sfnt_off00007073.bin
dbae4e2757e4dd0384772800213b11067e7ccb3349b0cc19fbfc72ca11fb28b9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7073 10464 bytes

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