Malicious PDF — malware analysis report

Static analysis result for SHA-256 0429b233f0cb725c…

MALICIOUS

PDF

45.3 KB Created: 2020-08-30 08:52:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9d2ffa9135daf8df93c5b5bedfc865c8 SHA-1: d5eb9942628037db37a1f5a91eceb0ce3adf7225 SHA-256: 0429b233f0cb725cb0cea8cc26414df6c80413d0e8cb4f06bcb995c846575858
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was flagged as malicious by an ML classifier and contains a link farm pointing to numerous external PDF files. One of the embedded URLs, 'https://ttraff.cc/wix?keyword=magellan+roadmate+2520-+lm', is identified as a malicious redirector. The document body, though heavily obfuscated, contains references to this URL and other PDF links, suggesting a coordinated effort to distribute malicious content or manipulate search results.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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/wix?keyword=magellan+roadmate+2520-+lm
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://static.usrfiles.com/ugd/eed56f_23cfc2159cd94f0a91677472154ea381.pdf
    • https://static.usrfiles.com/ugd/b8c837_1c8bcf3864ee4da09455be502f46e0e9.pdf
    • https://static.usrfiles.com/ugd/8cbfce_ade4ed8d94f84b9888a3df7fd6f4123f.pdf
    • https://static.usrfiles.com/ugd/696b8a_a116c240a5544621916d3cd17659d5db.pdf
    • https://static.usrfiles.com/ugd/b3bc21_4f0704c5e9ff4651875edca28f91745b.pdf
    • https://static.usrfiles.com/ugd/b8c837_7ad9077bb1ae479a94ef372cc60da741.pdf
    • https://static.usrfiles.com/ugd/b8c837_b6e58425420a424886fa6e7d8e2336de.pdf
    • https://static.usrfiles.com/ugd/822ecd_ec78174e07304cafb803d068b029b6a3.pdf
    • https://cdn.shopify.com/s/files/1/0431/6856/3355/files/fmla_certification_form_wh-_380-_f.pdf
    • https://cdn.shopify.com/s/files/1/0429/8119/5927/files/22781694581.pdf
    • https://cdn.shopify.com/s/files/1/0429/0406/0071/files/tarojijoduxaxunaki.pdf
    • https://cdn.shopify.com/s/files/1/0431/1416/8487/files/58200277777.pdf
    • https://cdn.shopify.com/s/files/1/0429/4960/7590/files/sedilaxapuzakipamuxifota.pdf
    • https://static.usrfiles.com/ugd/d3758e_327a70f544fb49b2837942eb7ef0f1bc.pdf
    • https://static.usrfiles.com/ugd/b4609a_51a63284215e4539b3779bb66055d93f.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006f09.bin
2aaaa887d464195fe70115b0e91959ce9636895ace9182f21cd4a6d688e06834		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F09 5404 bytes
font_01_sfnt_off0000815b.bin
ae9beab87fe885fde045692348a455aea4e439051170c6006db1c34b8eaef82f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x815B 11456 bytes

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