Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc629b0c069bfc9a…

MALICIOUS

PDF

36.7 KB Created: 2020-08-20 19:17:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 71675657f066ca896614eb6510eecceb SHA-1: 2e6c53c4e5b1a3b4f1ebc7e9cfeebb985cd1f0d6 SHA-256: fc629b0c069bfc9a53fa13db0e576c2686769615c65f2cded58fdbb29827ba40
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF was identified as a malicious redirector and a link farm. It contains numerous embedded links, with one specifically pointing to the malicious domain 'ttraff.com'. The document body, though heavily obfuscated, contains the same malicious URL, suggesting an attempt to lure users to a potentially harmful site.

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=any+shape+or+form+synonym
    • http://gufudi.patricia-a-gaines.com/uploads/1/3/0/7/130776688/dejunefosefoxan.pdf
    • https://cdn.shopify.com/s/files/1/0436/5497/1557/files/ponilerubopof.pdf
    • https://cdn.shopify.com/s/files/1/0429/4583/9271/files/biografia_de_canserbero.pdf
    • https://cdn.shopify.com/s/files/1/0432/5530/0249/files/82906209367.pdf
    • https://cdn.shopify.com/s/files/1/0432/6418/0390/files/p90x3_nutrition_guide_download.pdf
    • https://cdn.shopify.com/s/files/1/0429/7588/7523/files/jadevavepabovapafafuzalu.pdf
    • https://cdn.shopify.com/s/files/1/0435/2367/0176/files/zokijefejalufupupulas.pdf
    • https://cdn.shopify.com/s/files/1/0433/4164/3928/files/15461348147.pdf
    • https://cdn.shopify.com/s/files/1/0462/7981/9413/files/university_hospital_cincinnati_ohio_patient_information.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_off000049f2.bin
1054fe9d1d22def1810b6b9f117a70877ba6936a5555cb94f6ece376ef39ec55		 pdf-font-stream PDF embedded font (sfnt) at offset 0x49F2 5200 bytes
font_01_sfnt_off00005b7a.bin
8955481884906fdc0bec630bd021f3e118e97b0247e8a05005ce863cf058f951		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5B7A 13536 bytes

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