Malicious PDF — malware analysis report

Static analysis result for SHA-256 44903c419815df21…

MALICIOUS

PDF

40.1 KB Created: 2020-08-18 16:52:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6706b3cd12e1c3db3acda32c7cf94f75 SHA-1: 93ea29e77276a413baa2041f5d6a44212d5d7ae2 SHA-256: 44903c419815df211b36b4daebfb146cb3bfad08b76463b7a0b56988c74f67f5
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, many of which point to domains associated with link farms and redirectors. The document body includes the keyword '10th class 2019 date sheet ts', likely intended to attract users searching for this information. The primary malicious URL identified is https://ttraff.com/pify?keyword=10th+class+2019+date+sheet+ts, which is flagged as a malicious redirector. The file's structure and extensive use of external links suggest a phishing or malware distribution attempt.

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=10th+class+2019+date+sheet+ts
    • http://pagegunuj.joyfulbrush.com/uploads/1/3/0/9/130969465/ruxite.pdf
    • http://rogutuno.wasagabeachcorvetteclub.com/uploads/1/3/0/9/130969772/mewaxibezo-lulomotuxatam-wadibabulofosow-zomodo.pdf
    • http://files.potluckcornwall.co.uk/uploads/1/3/0/7/130775265/97387.pdf
    • http://files.cluminouseyecare.com/uploads/1/3/1/4/131438071/fatusesu.pdf
    • http://files.chqchurches.net/uploads/1/3/2/6/132681295/4b61976.pdf
    • https://cdn.shopify.com/s/files/1/0432/7990/9028/files/25803138625.pdf
    • https://cdn.shopify.com/s/files/1/0435/4169/2570/files/geximosikiveropoxe.pdf
    • https://cdn.shopify.com/s/files/1/0431/7573/9560/files/nidinanom.pdf
    • https://cdn.shopify.com/s/files/1/0429/2735/8115/files/zevogaxujokimewameba.pdf
    • https://cdn.shopify.com/s/files/1/0429/1792/0934/files/82498058566.pdf
    • https://cdn.shopify.com/s/files/1/0429/4865/7318/files/44909643918.pdf
    • https://cdn.shopify.com/s/files/1/0435/6934/8763/files/architecture_informatique.pdf
    • https://cdn.shopify.com/s/files/1/0447/1272/2585/files/intel_assembly_language.pdf
    • https://cdn.shopify.com/s/files/1/0434/9142/6469/files/bs_bahl_organic_chemistry_download.pdf
    • https://cdn.shopify.com/s/files/1/0435/3448/3605/files/graduation_diploma_template.pdf
    • https://cdn.shopify.com/s/files/1/0431/6046/9660/files/car_parking_design_standards.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_off00006036.bin
cd473e531c47383b3d8d5377517d34badc5c43386da26825691726b9e40cd924
pdf-font-stream PDF embedded font (sfnt) at offset 0x6036 5316 bytes
font_01_sfnt_off00007237.bin
d2f4a4385f0dc7d392a0ed6785b07071b57d8b5c6bb03d0da30dd107480dc4a3
pdf-font-stream PDF embedded font (sfnt) at offset 0x7237 9808 bytes