Malicious PDF — malware analysis report

Static analysis result for SHA-256 a476df0bd8c699e8…

MALICIOUS

PDF

45.4 KB Created: 2020-07-31 06:47:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 69601acddd4caf419ba1216a974984e3 SHA-1: 30c359a3830e4dbf9c5d4cafd0678af24f91c842 SHA-256: a476df0bd8c699e85f3c432147fa866d5e8b10123d6d01096a3eb46eda4b5af7
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 User Execution: Malicious Link T1059.001 Command and Scripting Interpreter: PowerShell

The PDF file contains a large number of embedded links, many of which point to Shopify-hosted PDFs, forming a link farm. One critical heuristic indicates that the PDF links to a known malicious redirector infrastructure at 'ttraff.cc'. This suggests the document's primary purpose is to lure users into clicking malicious links, 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.cc/pify?keyword=body+parts+worksheet+kindergarten+pdf
    • http://files.lebanontours.info/uploads/1/3/2/6/132681033/wexifijazama.pdf
    • http://files.kaconsulting.org/uploads/1/3/1/4/131409526/226670e17d1a.pdf
    • http://files.deborahlawrenceschafer.com/uploads/1/3/2/6/132695511/3777644.pdf
    • http://files.trinityprocounseling.com/uploads/1/3/1/3/131379540/5172681.pdf
    • http://files.mercerology.com/uploads/1/3/1/4/131438137/ba11df1.pdf
    • http://files.deborahlawrenceschafer.com/uploads/1/3/2/6/132695511/3777644.pd
    • https://cdn.shopify.com/s/files/1/0431/1823/1709/files/4276522046.pdf
    • https://cdn.shopify.com/s/files/1/0428/2492/5340/files/jasek.pdf
    • https://cdn.shopify.com/s/files/1/0431/7485/4820/files/86738793240.pdf
    • https://cdn.shopify.com/s/files/1/0430/1789/6089/files/28209807980.pdf
    • https://cdn.shopify.com/s/files/1/0428/0667/3574/files/bimaxumupowizerisurij.pdf
    • https://cdn.shopify.com/s/files/1/0441/3744/7576/files/61053419621.pdf
    • https://cdn.shopify.com/s/files/1/0427/5086/9671/files/liniwetusexoro.pdf
    • https://cdn.shopify.com/s/files/1/0433/4570/7162/files/dikinazozaridemuta.pdf
    • https://cdn.shopify.com/s/files/1/0432/0736/0667/files/xitolex.pdf
    • https://cdn.shopify.com/s/files/1/0427/8334/2748/files/90179440592.pdf
    • https://cdn.shopify.com/s/files/1/0432/2433/4498/files/69379456495.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/3365514284.pdf
    • https://cdn.shopify.com/s/files/1/0430/4030/9402/files/519331505.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_off000073dd.bin
267403c2ee3df413405a79781e73f0ea35d87cd8e8427030cf587dfbd01f4799
pdf-font-stream PDF embedded font (sfnt) at offset 0x73DD 5364 bytes
font_01_sfnt_off00008631.bin
5a6f1c9cc3b983a7f2aa76d1c110f84e3de8528ae52f901678184b38cec15948
pdf-font-stream PDF embedded font (sfnt) at offset 0x8631 9924 bytes