Malicious PDF — malware analysis report

Static analysis result for SHA-256 94559ba9cd282faf…

MALICIOUS

PDF

37.1 KB Created: 2020-08-09 06:13:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 43097f3b5e177fed40aa0ec1c6db3d52 SHA-1: 7a0ea21c4cd680e06c6edb9a7a8b8d63130bb08f SHA-256: 94559ba9cd282faf369cbccd4bc68bc00d845df623297468e092509a466b524c
120 Risk Score

Malware Insights

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

The PDF document contains a high number of embedded links, many pointing to external PDF files, a technique often used for SEO poisoning or to host malicious content. One critical heuristic identified a link to a known malicious redirector infrastructure at `https://ttraff.com/pify?keyword=bethel+woods+seating+chart+pdf`. The document body, though malformed, contains text referencing 'Bethel woods seating chart pdf', suggesting a lure to disguise the malicious intent. No scripts were extracted from this sample.

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=bethel+woods+seating+chart+pdf
    • http://files.huron-athletics.org/uploads/1/3/1/3/131382395/wisipuz.pdf
    • http://pedupi.natashasteer.com/uploads/1/3/2/6/132695278/1062888.pdf
    • http://bepemiwol.azguide.net/uploads/1/3/2/6/132681670/4272233.pdf
    • http://files.custommailservices.com/uploads/1/3/1/4/131411539/3835045.pdf
    • http://xizejikix.nickwinter.co.uk/uploads/1/3/2/6/132681352/9929075.pdf
    • https://cdn.shopify.com/s/files/1/0428/5969/2198/files/5949833221.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xopiforosolakalaxelavur.pdf
    • https://cdn.shopify.com/s/files/1/0433/5131/0488/files/61863005395.pdf
    • https://cdn.shopify.com/s/files/1/0447/8880/9879/files/pectoralis_minor_stretch.pdf
    • https://cdn.shopify.com/s/files/1/0431/0568/1562/files/72961416104.pdf
    • https://cdn.shopify.com/s/files/1/0431/4926/3004/files/integrity_selling_for_the_21st_century.pdf
    • https://cdn.shopify.com/s/files/1/0428/2620/3302/files/12495884221.pdf
    • https://cdn.shopify.com/s/files/1/0428/9613/0211/files/65138259565.pdf
    • https://cdn.shopify.com/s/files/1/0433/8856/7706/files/ti._paper_trail_torrent.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_off000050f0.bin
fdc7d214da968807f54ea00e3ffb82684c2eb0487b37d8c4c21d53f349f28ef2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x50F0 5556 bytes
font_01_sfnt_off000063e9.bin
f783edbf3733894c5f4b4daa296d1bc1a6ea9b273d3e43c457405eca12e975bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x63E9 10524 bytes

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