Malicious PDF — malware analysis report

Static analysis result for SHA-256 28f264971516354e…

MALICIOUS

PDF

60.2 KB Created: 2020-08-21 14:40:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 01ffe5e0d51638630e08faa5a7f4583e SHA-1: d5b04fbbd346ac3bf9065634c5bb00ca8fdc4693 SHA-256: 28f264971516354ea54b189deae4a6c7f47120c3f781f61373cad16ff6e82361
150 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.com, which is likely used to obscure the final destination. The document body, though heavily obfuscated, contains the same URL and a blockchain-related keyword, suggesting a lure. The presence of a large number of external PDF links, many hosted on Shopify, indicates a link farm used for SEO poisoning or to distribute malicious content. The ML classifier strongly supports the malicious nature of this PDF.

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=blockchain+platform+for+supply+chain
    • http://files.collinsvillecrimsoncadets.com/uploads/1/3/1/6/131607062/jepuxego.pdf
    • http://dipegat.snaptoitstaging.com/uploads/1/3/1/1/131164066/9f5c29c34.pdf
    • http://bopit.oceannotions.com/uploads/1/3/1/4/131453540/bc8e33ab446c25c.pdf
    • http://files.alohawraps.co/uploads/1/3/1/1/131163920/9694081.pdf
    • http://dipegat.snaptoitstaging.com/up
    • https://cdn.shopify.com/s/files/1/0431/2721/0144/files/86351280553.pdf
    • https://cdn.shopify.com/s/files/1/0428/2885/7503/files/40417968525.pdf
    • https://cdn.shopify.com/s/files/1/0434/0360/8216/files/working_memory_in_the_classroom.pdf
    • https://cdn.shopify.com/s/files/1/0431/0440/3613/files/76306847049.pdf
    • https://cdn.shopify.com/s/files/1/0430/4899/2930/files/rasewizogumu.pdf
    • https://cdn.shopify.com/s/files/1/0440/2115/3957/files/kozek.pdf
    • https://cdn.shopify.com/s/files/1/0437/9534/9666/files/water_id_minecraft.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/telisupuf.pdf
    • https://cdn.shopify.com/s/files/1/0431/2665/3090/files/working_with_algebra_tiles.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_off0000ada9.bin
2fb03a7975f6c9df3efe2f8fcc1b10cdfd6768b885dbf18588d3c1877df232a8		 pdf-font-stream PDF embedded font (sfnt) at offset 0xADA9 5468 bytes
font_01_sfnt_off0000c010.bin
d83a746ccebdc380ac6867142d1f523b40a85a3da1d9019c716d43f795618118		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC010 10500 bytes

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