Malicious PDF — malware analysis report

Static analysis result for SHA-256 da19e85a4407abe4…

MALICIOUS

PDF

41.7 KB Created: 2020-08-21 03:52:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bd69c12d4f5368f04724c7f6d7674f18 SHA-1: e529e9aba7188a5d0bcde30a02b549815a7ffa6a SHA-256: da19e85a4407abe4d4dc233b76d096ec2f17de53595009bf9882e78ce9542a09
150 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'. This URL is presented within the document body, disguised as a user manual for a Philips beard trimmer. The PDF also exhibits characteristics of a link farm, with numerous embedded links, many pointing to Shopify domains. The primary malicious URL is 'https://ttraff.com/pify?keyword=philips+series+3000+beard+trimmer+user+manual', which likely serves as a lure to a malicious site.

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.com/pify?keyword=philips+series+3000+beard+trimmer+user+manual
    • http://files.priorityenvironmental.ca/uploads/1/3/2/7/132740415/poturowinu-pepurefeme-zomoxiru.pdf
    • http://files.moranenterprises.com/uploads/1/3/1/8/131856723/be1151cbc9afd.pdf
    • http://files.jordanmclayton.com/uploads/1/3/1/6/131607163/4443392.pdf
    • http://xeniwegik.germantownwrestling.org/uploads/1/3/2/6/132695569/zinaz_zefivoboxesa_tenubima_xepaputanegif.pdf
    • https://cdn.shopify.com/s/files/1/0434/7074/9861/files/davopusosuvu.pdf
    • https://cdn.shopify.com/s/files/1/0431/2167/2356/files/1355755596.pdf
    • https://cdn.shopify.com/s/files/1/0436/8711/6965/files/47876853231.pdf
    • https://cdn.shopify.com/s/files/1/0431/2439/2087/files/30471900856.pdf
    • https://cdn.shopify.com/s/files/1/0440/1194/6134/files/f_alphabet_wallpaper_hd.pdf
    • https://cdn.shopify.com/s/files/1/0436/0221/5069/files/wipazimoburer.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/ruxejuvekega.pdf
    • https://cdn.shopify.com/s/files/1/0436/9901/1738/files/celtic_mythology_a_to_z.pdf
    • https://cdn.shopify.com/s/files/1/0437/6395/7909/files/petipubofoxa.pdf
    • https://cdn.shopify.com/s/files/1/0432/0778/6654/files/51257576257.pdf
    • https://cdn.shopify.com/s/files/1/0431/0034/0381/files/29315328748.pdf
    • https://cdn.shopify.com/s/files/1/0431/3936/7061/files/axis_bank_rtgs_form_2020.pdf
    • https://cdn.shopify.com/s/files/1/0433/6395/8938/files/bijufomukowebenobotix.pdf
    • https://cdn.shopify.com/s/files/1/0440/1682/8581/files/autosys_scheduler_tutorial.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_off00006393.bin
90961dfa69748d9dbff90215388e0d63b6f5175e02486e58e1ec0c7ba27a150b
pdf-font-stream PDF embedded font (sfnt) at offset 0x6393 5644 bytes
font_01_sfnt_off00007684.bin
a9095f1885cafa39f491c98ab070d5b7375d7e8c9a8da70cd0def02def5d6acc
pdf-font-stream PDF embedded font (sfnt) at offset 0x7684 10484 bytes