Malicious PDF — malware analysis report

Static analysis result for SHA-256 89679f5334f3a4b7…

MALICIOUS

PDF

44.7 KB Created: 2020-08-25 05:46:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a7603383cd3753221ea8f7c0a702ab3e SHA-1: bd03a8a06662b3f4b8ef7d42ffd90949ff824869 SHA-256: 89679f5334f3a4b7f72e0b94ee4325d0ec2f3d1113589fdccc186f3d6d05569d
150 Risk Score

Malware Insights

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

The PDF was flagged by multiple critical heuristics for containing malicious redirector links and a link farm. The primary malicious URL identified is https://ttraff.cc/pify?keyword=twin+platform+bed+with+upholstered+headboard, which is a known malicious redirector. The document body contains garbled text but also includes the same URL, suggesting it is intentionally placed. The presence of numerous external links, many pointing to Shopify domains, indicates a potential attempt to obscure the final malicious destination or to leverage legitimate platforms for hosting malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.cc/pify?keyword=twin+platform+bed+with+upholstered+headboard
    • http://files.enochsantiquearms.com/uploads/1/3/1/6/131607467/5459249.pdf
    • http://files.readingthegame.org/uploads/1/3/0/7/130776148/dunesenemokugubebuxu.pdf
    • http://megoseveg.mgservicesltd.com/uploads/1/3/2/7/132741555/6654622.pdf
    • http://kilig.artworkbykm.com/uploads/1/3/0/7/130775518/posawumorosajasefu.pdf
    • https://cdn.shopify.com/s/files/1/0430/5852/8405/files/bofiweganoxejukesi.pdf
    • https://cdn.shopify.com/s/files/1/0430/4571/6119/files/38690858784.pdf
    • https://cdn.shopify.com/s/files/1/0448/1089/5520/files/accountancy_comprehensive_project_for_class_12_cbse_2020_20.pdf
    • https://cdn.shopify.com/s/files/1/0434/7504/2457/files/cast_away_full_movie_tamil_dubbed.pdf
    • https://cdn.shopify.com/s/files/1/0432/3259/2040/files/lulemerorinafagifoxinexes.pdf
    • https://cdn.shopify.com/s/files/1/0431/0600/9242/files/zanilojabubesuziruxek.pdf
    • https://cdn.shopify.com/s/files/1/0438/6743/9264/files/xalowujadibakebapegujegot.pdf
    • https://cdn.shopify.com/s/files/1/0438/5079/3122/files/ciao_adios_pagalworld.pdf
    • https://cdn.shopify.com/s/files/1/0433/0012/6880/files/top_1000_cities_in_us.pdf
    • https://cdn.shopify.com/s/files/1/0428/7440/5023/files/38206147113.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_off00006fc8.bin
84b18924c8f6436e182641caab2b0f9d1d91a1d43117a51f27c2d3ddb692c76b
pdf-font-stream PDF embedded font (sfnt) at offset 0x6FC8 5460 bytes
font_01_sfnt_off00008231.bin
60254c2285567262e0cc9d77e012d95325942862cf4c849bce978be724b9ea38
pdf-font-stream PDF embedded font (sfnt) at offset 0x8231 10488 bytes