Malicious PDF — malware analysis report

Static analysis result for SHA-256 6b14c2e8e8a0b3ae…

MALICIOUS

PDF

40.7 KB Created: 2020-08-28 09:03:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e29361f5a0b030f9ae32efe1cbb6cbe8 SHA-1: b826566005d4987774806ecad5b3291650c19e34 SHA-256: 6b14c2e8e8a0b3ae221124760455b1658f7d2365b27e222122bce9041879696e
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a large number of embedded links, many of which point to a link farm designed for SEO manipulation. One prominent URL, 'https://ttraff.ru/pify?keyword=logitech+x3d+joystick+drivers', is identified as a malicious redirector. The document body, though heavily obfuscated, also contains this URL and other links to Shopify-hosted PDFs, suggesting a lure to malicious infrastructure.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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=logitech+x3d+joystick+drivers
    • http://files.chrismurraywheelworks.com/uploads/1/3/1/4/131407388/114c031.pdf
    • http://tifega.uuhk.org/uploads/1/3/0/9/130969723/gikabafivobaf.pdf
    • http://bejatobeb.artsfortheschools.org/uploads/1/3/1/4/131406082/5280592.pdf
    • http://files.joh4autism.org/uploads/1/3/2/6/132681080/293d870.pdf
    • http://sizemez.theraveninn.net/uploads/1/3/0/8/130873863/kegijoridekurez-jupiwi-xujopomogorawix-vasezaso.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0437/6294/2101/files/bad_bunny_songs_mp4.pdf
    • https://cdn.shopify.com/s/files/1/0433/8712/5927/files/gepapobexelerama.pdf
    • https://cdn.shopify.com/s/files/1/0450/1661/3014/files/pass_2d_array_to_function_c.pdf
    • https://cdn.shopify.com/s/files/1/0437/3364/7525/files/piregenesajivavabixij.pdf
    • https://cdn.shopify.com/s/files/1/0430/3136/3747/files/dagadari.pdf
    • https://cdn.shopify.com/s/files/1/0438/2402/1664/files/50199010450.pdf
    • https://cdn.shopify.com/s/files/1/0463/4007/9777/files/celebration_of_life_service_format.pdf
    • https://cdn.shopify.com/s/files/1/0433/6350/0197/files/51358700841.pdf
    • https://cdn.shopify.com/s/files/1/0431/3012/6490/files/butch_cassidy_and_the_sundance_kid_screenplay.pdf
    • https://cdn.shopify.com/s/files/1/0435/3127/2346/files/70657991911.pdf
    • https://cdn.shopify.com/s/files/1/0429/3486/1987/files/51902383407.pdf
    • https://cdn.shopify.com/s/files/1/0447/4735/8362/files/rudetudaw.pdf
    • https://cdn.shopify.com/s/files/1/0440/9910/9016/files/electronics_workbench.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006055.bin
ab6c3346f777ec86f8d20b79ef052a500dda918c5c1a28f5f7f38341d6fa1bdd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6055 5436 bytes
font_01_sfnt_off000072e7.bin
3d0be16c1cb62cbe527a6402ad606a3462e41bf769733573d59cd7cb67c45994		 pdf-font-stream PDF embedded font (sfnt) at offset 0x72E7 10196 bytes

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