Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0200989f32255f4…

MALICIOUS

PDF

45.0 KB Created: 2020-08-17 06:26:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9dee35c5d86e13f72200641edd699ece SHA-1: 4a25dab26e07c590d66609a2b6012ce8ec65a550 SHA-256: e0200989f32255f4a80937c8a5385009bbc1e97d6e7a74b31beb7e0afcf1e9d5
150 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. It also exhibits a PDF link farm heuristic, with numerous links to Shopify-hosted PDFs, likely for SEO poisoning or to obscure the malicious redirector. The ML classifier strongly indicates maliciousness. The primary attack pattern involves luring the user via a seemingly relevant link to a malicious site.

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=carsguide+suv+of+the+year
    • http://files.thenewhempco.com.au/uploads/1/3/1/1/131163856/adf06b8ed16.pdf
    • http://mogejoj.vipfrenchnannies.com/uploads/1/3/1/3/131378950/wupilupigupezebir.pdf
    • http://files.nomadesgourmandes.com/uploads/1/3/1/0/131069789/sezulaveselamixud.pdf
    • https://cdn.shopify.com/s/files/1/0437/9531/6893/files/39166089287.pdf
    • https://cdn.shopify.com/s/files/1/0436/2049/9616/files/timoxokuxumevijuwek.pdf
    • https://cdn.shopify.com/s/files/1/0439/8638/7102/files/vexikizaxejojidezapun.pdf
    • https://cdn.shopify.com/s/files/1/0435/2652/0987/files/girofisuwubexopo.pdf
    • https://cdn.shopify.com/s/files/1/0451/3277/5589/files/kog_maw_jungle_s6.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/87745409623.pdf
    • https://cdn.shopify.com/s/files/1/0433/5514/4347/files/xatabuloforegokulusevikod.pdf
    • https://cdn.shopify.com/s/files/1/0432/9901/2766/files/93535989786.pdf
    • https://cdn.shopify.com/s/files/1/0435/6512/1695/files/criminal_law_cases_and_materials.pdf
    • https://cdn.shopify.com/s/files/1/0434/8667/5108/files/kayaking_merit_badge_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0435/8252/1512/files/12088671653.pdf
    • https://cdn.shopify.com/s/files/1/0431/4031/7335/files/zekutisisikof.pdf
    • https://cdn.shopify.com/s/files/1/0431/4542/9160/files/aptitude_questions_and_answers_for_cat.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000641f.bin
3cbeeaf0b12c373242fbfb7126aa6c67134c95ac312ca04bfe7c9efbd6f934b6
pdf-font-stream PDF embedded font (sfnt) at offset 0x641F 5096 bytes
font_01_sfnt_off000075a1.bin
47715bdd23089fd22e5208db5a6aff57689726b1ef0c26221f7ca5ee007cd84c
pdf-font-stream PDF embedded font (sfnt) at offset 0x75A1 10196 bytes
font_02_sfnt_off0000988c.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176
pdf-font-stream PDF embedded font (sfnt) at offset 0x988C 4324 bytes