Malicious PDF — malware analysis report

Static analysis result for SHA-256 9199220aed1b2c05…

MALICIOUS

PDF

40.1 KB Created: 2020-08-28 03:13:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 97376af132a84d19d88b57697ea97c6f SHA-1: c8472c2fa228fe78199b1b301badd5c5841983ca SHA-256: 9199220aed1b2c05c59df5145dc34e789bebc44be9634545a8232781d5bb7e03
150 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external resources. One critical heuristic indicates that the PDF links to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=chitty+chitty+bang+bang+child+catcher', which is flagged as malicious. This suggests the document's primary purpose is to redirect users to malicious sites, likely for further exploitation or phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=chitty+chitty+bang+bang+child+catcher
    • http://files.pennyormsbee.ca/uploads/1/3/1/6/131606758/kaxibedawegadoja.pdf
    • http://rugevimax.laingtravel.com/uploads/1/3/0/7/130775195/db3c24cc.pdf
    • https://cdn.shopify.com/s/files/1/0430/3316/5986/files/42479886718.pdf
    • https://cdn.shopify.com/s/files/1/0433/4007/1070/files/black_powder_reloading_manual.pdf
    • https://cdn.shopify.com/s/files/1/0462/6851/4453/files/calibre_old_version.pdf
    • https://cdn.shopify.com/s/files/1/0429/9587/5989/files/customer_registration_form_template_html.pdf
    • https://cdn.shopify.com/s/files/1/0431/6338/6016/files/73713362528.pdf
    • https://cdn.shopify.com/s/files/1/0436/9884/7896/files/wojozedikeroxeti.pdf
    • https://cdn.shopify.com/s/files/1/0432/2977/3979/files/mivinoxodugibaxotukasu.pdf
    • https://cdn.shopify.com/s/files/1/0429/8512/8099/files/pujonadorejedejelelugi.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_off00005fbc.bin
d6bea63c2c6702952737d3a95a9bbc66b1a1c87b5fe28f3e1f4ea103952f0dc5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5FBC 5172 bytes
font_01_sfnt_off00007144.bin
14f42d3ec8f4dc379181b60546fce58ef04183a18c09fbfca5a7cb6f3382a9fe		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7144 10120 bytes

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