Malicious PDF — malware analysis report

Static analysis result for SHA-256 8025455c581e06af…

MALICIOUS

PDF

45.7 KB Created: 2020-08-03 01:39:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 55b8d61a47609d98d133bbdc05ac9846 SHA-1: 2a447c2aa25d0761a7fe32cefbe65369611a13af SHA-256: 8025455c581e06afe83f7c22d5230c76be252c033f2e4aa8677570b56a8d0ef3
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link T1059.001 PowerShell

The PDF contains a link farm pointing to numerous Shopify-hosted PDFs, with one primary link redirecting to malicious infrastructure at 'ttraff.ru'. This suggests a phishing or scam attempt using a lure document. The embedded link 'https://ttraff.ru/pify?keyword=300+workout+pdf' is the highest priority IOC, as it is identified as a malicious redirector.

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=300+workout+pdf
    • http://files.acreativedesigncompany.com/uploads/1/3/2/6/132683014/eab77.pdf
    • http://files.atlantamedicalaesthetics.com/uploads/1/3/1/6/131606694/vogowarofo_nepakunopisasib.pdf
    • http://files.omanroadshow.com/uploads/1/3/1/3/131380158/7738119.pdf
    • https://cdn.shopify.com/s/files/1/0433/4164/3928/files/gawogozujewozoledesali.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tanedikefiresemur.pdf
    • https://cdn.shopify.com/s/files/1/0432/6617/9230/files/78554201049.pdf
    • https://cdn.shopify.com/s/files/1/0430/6839/1577/files/bjp3_self-_check_5._1_whileloops.pdf
    • https://cdn.shopify.com/s/files/1/0436/7699/1653/files/felikogunubowuxuvamowero.pdf
    • https://cdn.shopify.com/s/files/1/0431/9009/1940/files/75072005222.pdf
    • https://cdn.shopify.com/s/files/1/0431/0561/6026/files/ellis_and_associates_lifeguard_book.pdf
    • https://cdn.shopify.com/s/files/1/0429/3571/3958/files/sologezurerelevaj.pdf
    • https://cdn.shopify.com/s/files/1/0429/8375/1831/files/13756552698.pdf
    • https://cdn.shopify.com/s/files/1/0434/3349/2641/files/zelejuminozovize.pdf
    • https://cdn.shopify.com/s/files/1/0431/5283/4717/files/80231117278.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_off00007468.bin
9fad76bcdbd61f0b23431225522c623a57d3b4902bc1d9d35c01edc467ee0e1b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7468 4980 bytes
font_01_sfnt_off0000858b.bin
9df8786ff05bb2f8678e6ac3ab597aa55b73504f4302e851aa3782f2f31a1b89		 pdf-font-stream PDF embedded font (sfnt) at offset 0x858B 10904 bytes

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