Malicious PDF — malware analysis report

Static analysis result for SHA-256 62ced2dd58937b78…

MALICIOUS

PDF

74.2 KB Created: 2020-08-01 16:29:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d1f978f917b021f866f571aa472469c8 SHA-1: 696a88eb6a9c238c4c0d74c15fd58dad0ab3fcec SHA-256: 62ced2dd58937b78ca37411e8fa044711c9c097b82e2110967a3ac463b380684
154 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=zapruder+film+frame+by+frame', suggesting a lure to external malicious content. The presence of a malicious redirector and a large number of external links indicates an attempt to lead the user to a compromised or malicious site.

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.com/pify?keyword=zapruder+film+frame+by+frame
    • http://files.inthehandofgod.com/uploads/1/3/1/1/131163734/5403b6.pdf
    • http://files.figman.com/uploads/1/3/1/6/131606262/nirebiteputobet-vozidepube-nubuvewo-rimejarirori.pdf
    • http://files.mooncityeventcenter.com/uploads/1/3/1/4/131453253/reguwapilixa.pdf
    • http://files.yourplacetoheal.com/uploads/1/3/1/8/131872054/malumesewabas.pdf
    • http://files.newhope4children.org/uploads/1/3/1/4/131407892/20a99c5.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0429/2552/3103/files/43056778940.pdf
    • https://cdn.shopify.com/s/files/1/0428/2590/8383/files/54557496849.pdf
    • https://cdn.shopify.com/s/files/1/0429/9322/1783/files/77980585726.pdf
    • https://cdn.shopify.com/s/files/1/0433/9535/0684/files/19596264281.pdf
    • https://cdn.shopify.com/s/files/1/0428/3197/0471/files/ruxibigimukarexejirak.pdf
    • https://cdn.shopify.com/s/files/1/0435/1708/3803/files/gezuteluramutiganaxe.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/41448402009.pdf
    • https://cdn.shopify.com/s/files/1/0437/6592/3992/files/51388037753.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/fawalonilon.pdf
    • https://cdn.shopify.com/s/files/1/0435/1347/9320/files/danunekebo.pdf
    • https://cdn.shopify.com/s/files/1/0434/1451/9966/files/fuvuwalazugazut.pdf
    • https://cdn.shopify.com/s/files/1/0433/4754/2175/files/67058310254.pdf
    • https://cdn.shopify.com/s/files/1/0428/5346/6271/files/3132556009.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_off0000e59b.bin
4817cb0c43ced43b767a9988d99fe346149baaf012c75f651c176c19284256b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE59B 5208 bytes
font_01_sfnt_off0000f745.bin
41a5e4bb187c039dbbc3a99bffa77a6035a744f1a70490607e879a3e9e3c24fc		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF745 10656 bytes

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