Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee1f6b746e5a562f…

MALICIOUS

PDF

43.3 KB Created: 2020-08-22 15:59:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 44c637296e9ceaecc0683f478a6137dd SHA-1: a32ab158d327c2e58c8bd53933c867d34ba2ee0e SHA-256: ee1f6b746e5a562f2d08894e6594921c954d972b8cc05577cd77875bc3103b32
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'ttraff.ru'. The document body and embedded links also indicate a lure related to a 'Portland General Electric Company Annual Report', which redirects to this malicious domain. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs, many of which are hosted on Shopify. The primary malicious IOC is the redirector URL.

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=portland+general+electric+company+annual+report
    • http://xuxudujej.shupik.com/uploads/1/3/2/6/132682892/lufofukumomataz_gufasug_lovaz_sawik.pdf
    • http://files.djwalterswriter.com/uploads/1/3/1/3/131380729/musibevejofij.pdf
    • https://cdn.shopify.com/s/files/1/0433/7664/0156/files/account_hacker_v3._9._9.pdf
    • https://cdn.shopify.com/s/files/1/0463/0370/7298/files/fegigovuv.pdf
    • https://cdn.shopify.com/s/files/1/0430/2834/9079/files/tinibajuz.pdf
    • https://cdn.shopify.com/s/files/1/0445/3682/3972/files/xapavoludi.pdf
    • https://cdn.shopify.com/s/files/1/0431/5217/9364/files/beginner_headway.pdf
    • https://cdn.shopify.com/s/files/1/0440/5982/0182/files/89990300587.pdf
    • https://cdn.shopify.com/s/files/1/0432/2335/1458/files/xarelokopatolodazuzutib.pdf
    • https://cdn.shopify.com/s/files/1/0437/8935/3109/files/47328867914.pdf
    • https://cdn.shopify.com/s/files/1/0431/5430/9280/files/juxoko.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_off00006a87.bin
bf39eddaacead4e4e7c8054150cdacb4973b67a6b31b278c97eaecdd23394b1f
pdf-font-stream PDF embedded font (sfnt) at offset 0x6A87 5316 bytes
font_01_sfnt_off00007c89.bin
3517ccf5fc209b3fe989769f68a3289bd7acb506a63ac78bc8abf30fd4aedfbb
pdf-font-stream PDF embedded font (sfnt) at offset 0x7C89 10528 bytes