Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe843bff2ad0e7ea…

MALICIOUS

PDF

43.5 KB Created: 2020-08-02 16:12:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 74b1cb535b5e46ce3faad6ec6eff3254 SHA-1: 422577a21001732e5ce6ca5477025a873f7a5294 SHA-256: fe843bff2ad0e7eaf8da30b5ff21f07fb332fedfb0fa802c8d7e22d395452f6a
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at ttraff.ru. This suggests the document is designed to lead users to malicious content through a chain of redirects. No scripts were extracted, and the document body is heavily obfuscated, but the presence of the malicious redirector is a strong indicator of malicious intent.

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=attached+amir+levine+pdf
    • http://files.islandbeautyportland.com/uploads/1/3/0/9/130969243/522dd448b29a.pdf
    • http://files.kairos-engineering.com/uploads/1/3/1/1/131163740/kabip.pdf
    • http://files.cvillematerials.com/uploads/1/3/2/6/132681743/nufojalelaxuloweku.pdf
    • http://files.hottopicstalkradio.com/uploads/1/3/0/9/130970005/kalorumopimora.pdf
    • http://files.reinamorapuertorico.com/uploads/1/3/1/4/131409200/882628ee57bc4.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/86662201832.pdf
    • https://cdn.shopify.com/s/files/1/0427/6482/8838/files/11964485259.pdf
    • https://cdn.shopify.com/s/files/1/0431/6371/3695/files/68181757980.pdf
    • https://cdn.shopify.com/s/files/1/0431/5031/1579/files/pivasanakutawepibavus.pdf
    • https://cdn.shopify.com/s/files/1/0429/1438/1980/files/fanazejemefitan.pdf
    • https://cdn.shopify.com/s/files/1/0431/7793/5005/files/nujujakipifipexemajedopi.pdf
    • https://cdn.shopify.com/s/files/1/0434/2457/9751/files/zemug.pdf
    • https://cdn.shopify.com/s/files/1/0429/3584/5017/files/xumoruvaruxajul.pdf
    • https://cdn.shopify.com/s/files/1/0437/3282/8314/files/download_geckodriver._tar._gz.pdf
    • https://cdn.shopify.com/s/files/1/0435/8176/7841/files/sanford_guide.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_off00006c37.bin
e6094f584d50a115be3f5da3ca9d814b54d7ab5f1c11fceb66538eb2c5f9ff56		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C37 5268 bytes
font_01_sfnt_off00007dfe.bin
b0f93d4c3a1277b14db6be21c5dc8c6c51d2d5e102c54696000d4ce053f04618		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7DFE 10436 bytes

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