Malicious PDF — malware analysis report

Static analysis result for SHA-256 1be4239b357104b2…

MALICIOUS

PDF

33.8 KB Created: 2020-08-04 04:09:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b7b0b033d5faa50bfe9162792eb37b30 SHA-1: 451f48116d262573b2fc25492dbd0986d4326048 SHA-256: 1be4239b357104b2beae0861f83407d203dc0757ed2f715a0ccfa7894b3ad4d4
150 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, includes the text 'Application form for uk passport pdf' and the malicious URL, suggesting a phishing lure. The presence of multiple external PDF links also indicates a link farm strategy, likely to improve search engine ranking for 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.ru/pify?keyword=application+form+for+uk+passport+pdf
    • http://files.dbblue.com/uploads/1/3/2/7/132710491/rifovatuxaw_jerovejule.pdf
    • http://files.glennstenson.com/uploads/1/3/0/7/130739285/kuzabarixak.pdf
    • http://files.dgw-america.org/uploads/1/3/1/4/131408209/99d5ed317972.pdf
    • https://cdn.shopify.com/s/files/1/0427/4126/8647/files/33136708130.pdf
    • https://cdn.shopify.com/s/files/1/0434/3640/8982/files/rusituzomuwos.pdf
    • https://cdn.shopify.com/s/files/1/0432/0028/2783/files/16906574467.pdf
    • https://cdn.shopify.com/s/files/1/0440/6041/0021/files/mosapoputowofuv.pdf
    • https://cdn.shopify.com/s/files/1/0431/3464/8474/files/fikefaxidaxexox.pdf
    • https://cdn.shopify.com/s/files/1/0427/7505/2454/files/xomujesogelefibes.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xarapidarobumebavo.pdf
    • https://cdn.shopify.com/s/files/1/0433/4302/0183/files/ladubabejoziritatoz.pdf
    • https://cdn.shopify.com/s/files/1/0431/0505/8976/files/97859699372.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_off0000470b.bin
ab510f736c1ec2c9e5855a32ff57113d607ba6b1be61cc6e16385e4c72e82869		 pdf-font-stream PDF embedded font (sfnt) at offset 0x470B 5356 bytes
font_01_sfnt_off0000592c.bin
9d32515f80b6a453f013e4620fa7ca309cf51af34a90bf8abc7429364f084fbf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x592C 9744 bytes

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