Malicious PDF — malware analysis report

Static analysis result for SHA-256 32603c6f28166e20…

MALICIOUS

PDF

40.7 KB Created: 2020-08-15 01:36:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a46bf0bdab4a91b2d0daf0b9a368cadb SHA-1: 88ba3c898d1c761033b6a9ca1e84af1ae0b12ad3 SHA-256: 32603c6f28166e20aafc96ffcb582985952486fa39797f3d98d4dcaf7bc35026
150 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, with one identified as a malicious redirector. The ML classifier also flagged this PDF with high confidence. The document body contains obfuscated text and a URL that appears to be part of a link farm, suggesting an attempt to lure users to malicious content.

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.cc/pify?keyword=formato+boda+civil+cdmx
    • http://padojaf.readingthegame.org/uploads/1/3/1/4/131438641/c988114.pdf
    • http://files.smithwlac.com/uploads/1/3/0/8/130874382/3a9d04cdcfd0.pdf
    • http://files.howardpatten.com/uploads/1/3/1/4/131483266/jelosuwuxemomiw-tasuroxotej-zosatewumefi.pdf
    • http://wotokuki.mkwritingsolutions.co.uk/uploads/1/3/0/9/130969300/8844672.pdf
    • http://nuwid.ihomeprestigeluxury.ca/uploads/1/3/1/0/131070450/digabavigelowu.pdf
    • https://cdn.shopify.com/s/files/1/0435/2393/2311/files/meripomovegutosanufawije.pdf
    • https://cdn.shopify.com/s/files/1/0428/2246/7740/files/fomebokilabasuvifopemom.pdf
    • https://cdn.shopify.com/s/files/1/0429/8797/8913/files/zisir.pdf
    • https://cdn.shopify.com/s/files/1/0429/5137/7049/files/xatugofuzigodixolifo.pdf
    • https://cdn.shopify.com/s/files/1/0430/8133/4933/files/capacitors_and_their_applications.pdf
    • https://cdn.shopify.com/s/files/1/0430/6888/3097/files/cet_davv_previous_year_papers.pdf
    • https://cdn.shopify.com/s/files/1/0436/7322/3321/files/52460214544.pdf
    • https://cdn.shopify.com/s/files/1/0435/7128/2079/files/bebikaworitexurobanus.pdf
    • https://cdn.shopify.com/s/files/1/0431/9982/4032/files/sokamibol.pdf
    • https://cdn.shopify.com/s/files/1/0430/6649/1042/files/c_two_dimensional_array.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_off000061ef.bin
f67f736f3ad6a949cbd9700d0451eb1e59cc69564020296a85914f52f0e0e876		 pdf-font-stream PDF embedded font (sfnt) at offset 0x61EF 5128 bytes
font_01_sfnt_off0000734d.bin
7380cc632a8f50c9c72c115dc1021aa8dccb794616a5445750f89418805c4a8d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x734D 10212 bytes

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