Malicious PDF — malware analysis report

Static analysis result for SHA-256 322227b53ba02127…

MALICIOUS

PDF

45.8 KB Created: 2020-08-04 17:17:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4fb04d631edfa53691e978474c549595 SHA-1: 978483080afcd5281ae00f718bb79664e1541c44 SHA-256: 322227b53ba021277a270f90c33c91af86640c228e8ef854334bd307e241f7a5
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link T1059.001 PowerShell

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=regulation+et+automatisme+pdf'. Additionally, it exhibits characteristics of a link farm, embedding numerous external PDF links, with the primary one being 'https://cdn.shopify.com/s/files/1/0439/9936/3222/files/bibuselunan.pdf'. The document body is heavily obfuscated, but the presence of the malicious redirector URL suggests the primary intent is to lead the user to a malicious site, likely for phishing or malware delivery.

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=regulation+et+automatisme+pdf
    • http://sapijope.1860sciviliancelebration.com/uploads/1/3/1/4/131453645/padigodetiloji.pdf
    • http://bedakuxap.alextechinfoforstudents.com/uploads/1/3/0/7/130739615/jabopeg_binazufomaviwi_vezuk.pdf
    • http://files.sportseconomics.org/uploads/1/3/0/9/130969576/nejupufuwuloka.pdf
    • https://cdn.shopify.com/s/files/1/0439/9936/3222/files/bibuselunan.pdf
    • https://cdn.shopify.com/s/files/1/0429/8915/8554/files/56337430997.pdf
    • https://cdn.shopify.com/s/files/1/0431/6564/7012/files/90595107586.pdf
    • https://cdn.shopify.com/s/files/1/0447/4611/3173/files/pre_interview_form.pdf
    • https://cdn.shopify.com/s/files/1/0431/5139/2922/files/55093366377.pdf
    • https://cdn.shopify.com/s/files/1/0433/5969/9109/files/73658729533.pdf
    • https://cdn.shopify.com/s/files/1/0445/5071/7604/files/highlighter-_rouge_bootstrap.pdf
    • https://cdn.shopify.com/s/files/1/0429/8450/5498/files/13141560664.pdf
    • https://cdn.shopify.com/s/files/1/0440/5464/2853/files/28248199736.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tapowizilefaj.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_off000075a0.bin
9b0de451ca5bd0ed62a78149dc36fbc75ebf12afc7b83b338c78c693b44d39fd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x75A0 5272 bytes
font_01_sfnt_off0000878b.bin
79b6d0ba1ba7e1cac781ac5b10106c874d19e90be9b3e7de403e363bce19e9b7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x878B 10268 bytes

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