Malicious PDF — malware analysis report

Static analysis result for SHA-256 9b5c9401c68451a3…

MALICIOUS

PDF

48.0 KB Created: 2020-07-29 07:30:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 599151a58ec8b6a1950fc7c0c3b68558 SHA-1: 2ddcc83499994e3efd7ea1f5c45288d4dc1184a1 SHA-256: 9b5c9401c68451a31bc446c1d1c313a919472e1ca9c8c654d0e3f1daf5050619
120 Risk Score

Malware Insights

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

The PDF file was identified as malicious due to a high number of embedded external links, a common tactic for distributing malicious content. One critical heuristic firing indicates that these links point to known malicious redirector infrastructure. The primary redirector URL is `https://ttraff.cc/pify?keyword=daily+nutrition+journal+template`. While many links point to benign Shopify domains, the presence of the redirector and the sheer volume of links suggest a link farm designed to obscure the ultimate destination, likely a phishing or malware download site.

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.cc/pify?keyword=daily+nutrition+journal+template
    • http://files.thedanceacademynewton.com/uploads/1/3/2/3/132302894/gejil-jimutidile-xiwulebewako.pdf
    • http://files.valkyrieglass.com/uploads/1/3/0/9/130969633/3830757.pdf
    • http://files.carneiroscrystals.com/uploads/1/3/0/8/130874495/dobevotimezamala.pdf
    • http://files.jnicolespa.com/uploads/1/3/0/8/130815093/9132307.pdf
    • http://files.carneiroscr
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/jokopewizemaw.pdf
    • https://cdn.shopify.com/s/files/1/0431/5863/4658/files/wemagodob.pdf
    • https://cdn.shopify.com/s/files/1/0427/4647/8759/files/26403839525.pdf
    • https://cdn.shopify.com/s/files/1/0431/1633/1172/files/57994291813.pdf
    • https://cdn.shopify.com/s/files/1/0427/3229/0215/files/xapukozukobowalij.pdf
    • https://cdn.shopify.com/s/files/1/0429/4439/7468/files/jixevukatevilekef.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/4077026649.pdf
    • https://cdn.shopify.com/s/files/1/0431/9805/4558/files/26259199987.pdf
    • https://cdn.shopify.com/s/files/1/0431/7220/0608/files/34125599061.pdf
    • https://cdn.shopify.com/s/files/1/0438/4335/4781/files/12094178441.pdf
    • https://cdn.shopify.com/s/files/1/0431/5581/6608/files/15352827736.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_off00007c0c.bin
ede4f29d35b65f010ed227919bdbf7a4d974e8893b8b27b5d3ef12263cf36079		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7C0C 4848 bytes
font_01_sfnt_off00008c72.bin
ba858f49cf742d813467b0c08da89b7d5e235583bb035c915cdb2d2423268ce5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8C72 11968 bytes

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