Malicious PDF — malware analysis report

Static analysis result for SHA-256 09ea06fbb182e234…

MALICIOUS

PDF

43.5 KB Created: 2020-08-25 02:18:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c6e869e01cade264d8a7433e383ab090 SHA-1: e3bf5d8091815ae0a8893f436af2ae0233c78d31 SHA-256: 09ea06fbb182e234d6ea825750c4dfe67cfdda0ad61012665022cedb031721d7
154 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to external PDF files hosted on Shopify and other domains, suggesting a link farm or SEO manipulation tactic. One critical heuristic identified a link to known malicious redirector infrastructure, specifically 'ttraff.cc', which is used to obscure the final destination. The document body, though partially corrupted, contains text related to 'consumer reports identity theft protection companies' and the authoring application 'wkhtmltopdf', indicating a potential lure to disguise malicious content. The presence of numerous external links and the redirection to known malicious infrastructure strongly suggest a phishing or scam attempt.

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/pify?keyword=consumer+reports+identity+theft+protection+companies
    • http://kiwez.got-a-man.com/uploads/1/3/2/7/132740763/gususijagijaxig.pdf
    • http://tuvozoki.dentistsanjose.com/uploads/1/3/2/7/132741100/4664831.pdf
    • http://xinuva.thecollegiatechoice.com/uploads/1/3/1/3/131382133/mexide.pdf
    • http://files.earthspirithearth.com/uploads/1/3/2/6/132682819/4570787.pdf
    • http://files.builtbykamin.com/uploads/1/3/0/9/130970009/sawulutu-zoxatadimage.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0430/7560/0535/files/11552495706.pdf
    • https://cdn.shopify.com/s/files/1/0432/6745/7182/files/35613040719.pdf
    • https://cdn.shopify.com/s/files/1/0432/6031/3763/files/babbitt_book.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/22271122494.pdf
    • https://cdn.shopify.com/s/files/1/0432/3619/6507/files/vanevuz.pdf
    • https://cdn.shopify.com/s/files/1/0431/5778/2694/files/cp30_batching_plant_spare_parts_manual.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nedodakamilutejevojive.pdf
    • https://cdn.shopify.com/s/files/1/0430/7773/0455/files/liradegikajewirem.pdf
    • https://cdn.shopify.com/s/files/1/0429/0750/0711/files/stopping_by_woods_on_a_snowy_evening.pdf
    • https://cdn.shopify.com/s/files/1/0434/7383/0048/files/disimekasolewesisa.pdf
    • https://cdn.shopify.com/s/files/1/0430/9575/2858/files/62296943160.pdf
    • https://cdn.shopify.com/s/files/1/0431/7016/8986/files/dokarevika.pdf
    • https://cdn.shopify.com/s/files/1/0464/7177/4366/files/42053368573.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_off00006b1e.bin
5cfef744db0a24f979a47eef2e157f0753698ae8b2868c2443e7ac3ef1c5737f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6B1E 5368 bytes
font_01_sfnt_off00007d38.bin
7e5dfeff21ca7ba4168543db44d8fdb97df6c3e37b585fc504d428be3a88edec		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D38 10272 bytes

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