Malicious PDF — malware analysis report

Static analysis result for SHA-256 d4e625df2d201ece…

MALICIOUS

PDF

58.6 KB Created: 2020-08-03 21:03:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 438ac77cae2c7ca82387d12fc691c06d SHA-1: 8c4ebddd37a128aa83d42496242274f520eebcca SHA-256: d4e625df2d201ecee442825c0950787cb009fd8ec2a324a41d4eddcd8890e484
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to Shopify domains hosting other PDFs, suggesting a link farm for SEO manipulation. One critical heuristic indicates a direct link to a known malicious redirector at 'https://ttraff.ru/pify?keyword=exploracion+nervio+facial+pdf'. This redirector likely serves as a lure to a malicious site or payload. The document body contains garbled text but includes the redirector URL and mentions 'wkhtmltopdf', indicating it was likely generated by a tool. No scripts were extracted from this sample.

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=exploracion+nervio+facial+pdf
    • http://files.absolutelypaintedfaces.com/uploads/1/3/1/6/131637211/9c41905c90d6c4.pdf
    • http://files.burninghammerfilmfest.com/uploads/1/3/2/6/132683154/520fe8a2.pdf
    • http://files.usmgsol.com/uploads/1/3/1/6/131637218/3222349.pdf
    • http://files.risechildrenschoir.org/uploads/1/3/1/3/131383247/4900629.pdf
    • https://cdn.shopify.com/s/files/1/0437/8837/0072/files/tafifakudex.pdf
    • https://cdn.shopify.com/s/files/1/0439/0794/0520/files/bufakuxavurabo.pdf
    • https://cdn.shopify.com/s/files/1/0433/9941/3921/files/18999787199.pdf
    • https://cdn.shopify.com/s/files/1/0430/4211/1637/files/27813378510.pdf
    • https://cdn.shopify.com/s/files/1/0429/5429/3402/files/81105534862.pdf
    • https://cdn.shopify.com/s/files/1/0429/0979/4463/files/migebakiziferobotababoviv.pdf
    • https://cdn.shopify.com/s/files/1/0429/5327/7589/files/biceps_workout_at_home_with_dumbbells_pdf.pdf
    • https://cdn.shopify.com/s/files/1/0437/5989/4689/files/79363196274.pdf
    • https://cdn.shopify.com/s/files/1/0431/8419/3696/files/16479358742.pdf
    • https://cdn.shopify.com/s/files/1/0430/8254/7361/files/88312387382.pdf
    • https://cdn.shopify.com/s/files/1/0433/7234/7550/files/dolexinopodideta.pdf
    • https://cdn.shopify.com/s/files/1/0433/7005/3784/files/buwilexumuvekonufa.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_off0000a987.bin
5f9ca2cbaf6c253601632723dbef685f7b2e2e1cfa0be423afa3f863b22387e4		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA987 5056 bytes
font_01_sfnt_off0000bad3.bin
5dadb2d043ebba12ac89d14b1c100d5cd9aef8017d8f62a8396e812b14725fcc		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBAD3 9996 bytes

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