Malicious PDF — malware analysis report

Static analysis result for SHA-256 3a5d1e6acfc252e1…

MALICIOUS

PDF

43.2 KB Created: 2020-08-15 07:20:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8a565f74c1b59d23227970049e82b0cc SHA-1: e91cdfe2fe8e5fb793e49fd363edb03352e538b4 SHA-256: 3a5d1e6acfc252e13b6bc0b7e444d9c76dfff1085616fc2859c71f1389324e1e
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains the same URL and mentions 'editorsdepot.com for free templates', suggesting a lure. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs, many pointing to Shopify, likely to improve search engine ranking for malicious content. No scripts were extracted from this sample.

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/pify?keyword=editorsdepot.+com+for+free+templates
    • http://files.andrewkellyfilms.com/uploads/1/3/0/7/130738554/9643229.pdf
    • http://files.fmtpr.com/uploads/1/3/2/7/132740997/zasup_xojud.pdf
    • http://files.capriislandreview.com/uploads/1/3/2/6/132681796/6897317.pdf
    • http://ruberanel.mid-atlanticpermits.com/uploads/1/3/2/7/132712376/lakusi.pdf
    • https://cdn.shopify.com/s/files/1/0440/2266/1278/files/kesavukipakixip.pdf
    • https://cdn.shopify.com/s/files/1/0433/5930/5880/files/rojulawisunufigozazavunu.pdf
    • https://cdn.shopify.com/s/files/1/0437/7139/6257/files/66065159367.pdf
    • https://cdn.shopify.com/s/files/1/0431/0925/3281/files/wudibarugorafoxisepusaji.pdf
    • https://cdn.shopify.com/s/files/1/0429/4528/2214/files/control_panel_wiring_guidelines_uk.pdf
    • https://cdn.shopify.com/s/files/1/0431/5080/3095/files/weighted_moving_average_python.pdf
    • https://cdn.shopify.com/s/files/1/0430/7035/7653/files/79617191613.pdf
    • https://cdn.shopify.com/s/files/1/0433/5858/4986/files/anabolisme_karbohidrat_pdf.pdf
    • https://cdn.shopify.com/s/files/1/0429/9954/6009/files/mukutoruxipabusorigar.pdf
    • https://cdn.shopify.com/s/files/1/0439/4686/8891/files/jaludipetolejikadefu.pdf
    • https://cdn.shopify.com/s/files/1/0428/6060/9692/files/14453313322.pdf
    • https://cdn.shopify.com/s/files/1/0437/8004/6997/files/88274957066.pdf
    • https://cdn.shopify.com/s/files/1/0434/7399/3890/files/entrepreneurship_ncert_book_class_11.pdf
    • https://cdn.shopify.com/s/files/1/0432/0008/6180/files/51455400070.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_off00006ab9.bin
d0caf909215635e6e27a8c1d956dcdd2f94ce663236ba234dbf4601f9ef925a5
pdf-font-stream PDF embedded font (sfnt) at offset 0x6AB9 5292 bytes
font_01_sfnt_off00007cac.bin
c464c120678e024be8565e5cc7f343ae1779bd089aa2858f25f348c42ad862d1
pdf-font-stream PDF embedded font (sfnt) at offset 0x7CAC 10216 bytes