Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e01f202e329933f…

MALICIOUS

PDF

57.8 KB Created: 2020-07-22 12:59:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c2d15d96c12bf568ef684994c299afb9 SHA-1: dcfa5e4d1ba786ede337ab76cacd98f76fbc4aae SHA-256: 6e01f202e329933fef9b793e32af324116870ef27e31c60b78fbfa93f6a9560d
154 Risk Score

Malware Insights

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

The PDF contains numerous external links, with one identified as a malicious redirector. The document body, though heavily obfuscated, suggests a lure related to environmental definitions. The presence of many external links, including those hosted on Shopify and WordPress, indicates an attempt to distribute malicious content or redirect users to phishing sites.

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=defini%25C3%25A7%25C3%25A3o+do+meio+ambiente+pdf
    • http://files.athensmediation.com/uploads/1/3/2/7/132712505/bifawiromeni.pdf
    • http://files.michellexiao.net/uploads/1/3/2/6/132683070/rozivi_nixuwudafini_kujanide.pdf
    • http://files.oceansandstarshine.com/uploads/1/3/0/8/130813827/26b5789702.pdf
    • http://files.crossroadschurchsc.org/uploads/1/3/2/7/132710765/6c2fbdb3039510f.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0434/9375/2997/files/zazonilofogixilolojasu.pdf
    • https://cdn.shopify.com/s/files/1/0433/5570/1398/files/83076357532.pdf
    • https://cdn.shopify.com/s/files/1/0432/5244/9444/files/5568663240.pdf
    • https://mewazaxudo.files.wordpress.com/2020/07/natawizolamegagaruvob.pdf
    • https://ronoretexupo.files.wordpress.com/2020/06/wivivuroxafesojex.pdf
    • https://taxasegino.files.wordpress.com/2020/06/82079603756.pdf
    • https://cdn.shopify.com/s/files/1/0429/9161/6153/files/pasalikijojezileda.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/20745245188.pdf
    • https://cdn.shopify.com/s/files/1/0434/5534/8888/files/59825080197.pdf
    • https://cdn.shopify.com/s/files/1/0429/9092/8026/files/rudevanenegobukojinuv.pdf
    • https://cdn.shopify.com/s/files/1/0437/1939/3448/files/venufabarewikikuxaz.pdf
    • https://cdn.shopify.com/s/files/1/0438/8664/1304/files/87851087279.pdf
    • https://cdn.shopify.com/s/files/1/0429/2280/3366/files/8297172902.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_off0000a144.bin
3848425267024a5f059263bddc5a642d47eb17607ca59f82431dd7d9528e8d59		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA144 5308 bytes
font_01_sfnt_off0000b2a7.bin
5e9b4d70687a658f926c7d1a5ba63132288b8e1647cf0b5be44d2e71815a8fd7		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB2A7 12452 bytes

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