Malicious PDF — malware analysis report

Static analysis result for SHA-256 3921044f5123ac88…

MALICIOUS

PDF

39.6 KB Created: 2020-10-07 03:04:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 78bc5e5d4459de77cfe199c73f72aa59 SHA-1: d1a894b8e680099f81b6f56b6769f90a684dc2f0 SHA-256: 3921044f5123ac8814407baa1390c6c4a313a571808f604c6ec3ecaaeae58e50
120 Risk Score

Malware Insights

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

The PDF contains a link farm designed to mimic search results for academic papers, specifically mentioning 'strategic management competitiveness and globalization concepts and cases 11th edition'. The primary embedded URL, https://ttraff.link/pify?keyword=download+pdf+strategic+management+competitiveness+and+globalization+concepts+and+cases+11th+edition, is identified as a malicious redirector. This suggests the document's purpose is to trick users into clicking the link to download a PDF, ultimately leading them to malicious infrastructure.

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.link/pify?keyword=download+pdf+strategic+management+competitiveness+and+globalization+concepts+and+cases+11th+edition
    • https://site-1036640.mozfiles.com/files/1036640/fekimadexaxifimixasu.pdf
    • https://site-1039150.mozfiles.com/files/1039150/74286187744.pdf
    • https://site-1037141.mozfiles.com/files/1037141/71136221784.pdf
    • https://site-1036864.mozfiles.com/files/1036864/68915280672.pdf
    • https://site-1041695.mozfiles.com/files/1041695/40318615057.pdf
    • https://site-1037098.mozfiles.com/files/1037098/redopubewolejipesumewa.pdf
    • https://site-1037833.mozfiles.com/files/1037833/82520055419.pdf
    • https://digitalcontentmarket.org/wp-content/uploads/2018/03/Download-Solution-Manual-fo
    • https://site-1039150.mozfile
    • https://uploads.strikinglycdn.com/files/260d2691-5f5c-4a58-b4e5-3f9187541bb1/lilik.pdf
    • https://uploads.strikinglycdn.com/files/2040a025-3aae-4970-9211-7cda7edbfbc9/86191739875.pdf
    • https://uploads.strikinglycdn.com/files/090fa792-def2-4377-b283-6fa9bb1c9237/4892558154.pdf
    • https://cdn.shopify.com/s/files/1/0486/3665/7822/files/94948201587.pdf
    • https://cdn.shopify.com/s/files/1/0486/0087/5173/files/20828893958.pdf
    • https://cdn.shopify.com/s/files/1/0493/2186/9471/files/46136087930.pdf
    • https://cdn.shopify.com/s/files/1/0465/8338/2183/files/zejamililojo.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_off000056ba.bin
eb0b793d9e9293cb889822d69499a761fb6b30b1844e1ee21b09ac1f5cfd2ca7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x56BA 5964 bytes
font_01_sfnt_off00006b09.bin
65e4f67f20dea2e48fe6d9b222298a799a6d60170d9399eca2f6e8ecce4c775b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6B09 10856 bytes

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