Malicious PDF — malware analysis report

Static analysis result for SHA-256 235fe081897edd63…

MALICIOUS

PDF

42.7 KB Created: 2020-08-09 00:42:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0007213c6c9dbbd6bffb6dba0834e50f SHA-1: bc56e43ed1ee8fc72593bdf941a7b124b34c7fe2 SHA-256: 235fe081897edd6372d251ec4250b375a2f4b74c2ea4ac29de57b8e4b42375d3
150 Risk Score

Malware Insights

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

The PDF contains a high density of external links, many pointing to a redirector service. The primary malicious URL identified is ttraff.com, which is flagged as a malicious redirector. The document body, though heavily obfuscated, contains references to 'uv vis spectroscopy applications pdf' and the malicious URL, suggesting a lure to disguise the malicious intent. The ML classifier also strongly indicated maliciousness.

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=uv+vis+spectroscopy+applications+pdf
    • http://files.jacktaylorphillips.com/uploads/1/3/1/3/131380612/a28a09c6c02a5e.pdf
    • http://files.myveganlife.ca/uploads/1/3/1/3/131381480/67ce40e8.pdf
    • http://files.bamboomountain.org/uploads/1/3/0/7/130775063/bosuj-zemas-jadamibivozabev.pdf
    • http://files.xs420.com/uploads/1/3/1/4/131406149/nagujibod.pdf
    • https://cdn.shopify.com/s/files/1/0433/0982/6213/files/45951873929.pdf
    • https://cdn.shopify.com/s/files/1/0432/8446/3784/files/german_grammar_exercises_with_answers.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/26965864763.pdf
    • https://cdn.shopify.com/s/files/1/0429/4197/2646/files/gta_4_mod_xbox_360_download.pdf
    • https://cdn.shopify.com/s/files/1/0429/9957/8773/files/daxonosoriva.pdf
    • https://cdn.shopify.com/s/files/1/0437/4895/0170/files/wefog.pdf
    • https://cdn.shopify.com/s/files/1/0431/8658/5764/files/bawozekutev.pdf
    • https://cdn.shopify.com/s/files/1/0433/4164/3928/files/15137997142.pdf
    • https://cdn.shopify.com/s/files/1/0428/1214/5823/files/pozufidexi.pdf
    • https://cdn.shopify.com/s/files/1/0430/4217/7181/files/wuzoniripavonuzujibi.pdf
    • https://cdn.shopify.com/s/files/1/0439/4765/5323/files/sorujenutuzupodo.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xozujegemuzudileruzodedus.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_off000068ec.bin
8834a9a483e4f8934a92089d86566c66d173bc47cce71d5232dccad3e98b3737		 pdf-font-stream PDF embedded font (sfnt) at offset 0x68EC 5304 bytes
font_01_sfnt_off00007b16.bin
dc9ebb32226f8f4003e1c74c1c257be8d9650f8ae2d12dccb240ca31e7841816		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B16 10224 bytes

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