Malicious PDF — malware analysis report

Static analysis result for SHA-256 cebafc7eacd28a52…

MALICIOUS

PDF

37.8 KB Created: 2020-08-19 14:10:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9e60cf3d3773821cd731836959ef3016 SHA-1: b281416c98d41ada66f2201de093cd4ea835ed51 SHA-256: cebafc7eacd28a528b00467644b49ed7b89989cbf12330ea7dba3cd8ee59b5cf
150 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link disguised as a USDA international health certificate form, aiming to trick users into clicking it. The PDF also hosts a large number of external links, many pointing to Shopify, likely for SEO manipulation or to host further malicious content. No scripts were extracted, but the presence of a critical PDF redirector link and a high ML score strongly indicate malicious intent.

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=usda+international+health+certificate+form+7001
    • http://files.arcticecology.ca/uploads/1/3/2/6/132681740/regewoguzoru.pdf
    • http://files.bobfritz.net/uploads/1/3/0/9/130969652/bunaven.pdf
    • http://zugipev.karmenkooyers.com/uploads/1/3/0/8/130873995/f8681d2.pdf
    • http://files.1nelson.ca/uploads/1/3/1/0/131070207/6957002.pdf
    • http://files.yaawesomesauce.com/uploads/1/3/2/8/132816091/fimifatu.pdf
    • https://cdn.shopify.com/s/files/1/0437/1618/2166/files/jurnal_anemia_2020.pdf
    • https://cdn.shopify.com/s/files/1/0430/2045/1997/files/free_worksheet_ordinal_numbers_grade_1.pdf
    • https://cdn.shopify.com/s/files/1/0431/3730/2690/files/distributive_property_problems_and_answers.pdf
    • https://cdn.shopify.com/s/files/1/0434/5207/2088/files/agustin_barrios_julia_florida.pdf
    • https://cdn.shopify.com/s/files/1/0431/3264/9636/files/tetefis.pdf
    • https://cdn.shopify.com/s/files/1/0431/5525/9546/files/63062525637.pdf
    • https://cdn.shopify.com/s/files/1/0432/7990/9017/files/41927594762.pdf
    • https://cdn.shopify.com/s/files/1/0428/5346/6271/files/83015378291.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nejoxalivivurotuzepebibus.pdf
    • https://cdn.shopify.com/s/files/1/0434/0432/9125/files/79297162060.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_off000053fd.bin
8e1325afc617a1222f94899598d63d398f0c6c21e16edb95c32e87b2a72b5d83		 pdf-font-stream PDF embedded font (sfnt) at offset 0x53FD 5528 bytes
font_01_sfnt_off000066a7.bin
17a0c94fd266bd41ba753ad1b491117643700e01d9d27456d88c35923d0b85ae		 pdf-font-stream PDF embedded font (sfnt) at offset 0x66A7 10408 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.