Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0ebafa602e0ffb8…

MALICIOUS

PDF

41.5 KB Created: 2020-09-17 15:42:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: dad015bae01d0d2489564a170a804aba SHA-1: 200063e2444346508e6b8cbf3847bf83185c5198 SHA-256: e0ebafa602e0ffb826478f8f68970ce994619f533f98084abddb69eea3fd94b9
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF was flagged as malicious due to a high number of embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.me/wix?keyword=the+rules+time+tested+secrets+pdf', which is also listed as a malicious redirector. The presence of numerous external links suggests a link farm or redirection scheme designed to lead users to harmful content.

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.me/wix?keyword=the+rules+time+tested+secrets+pdf
    • http://tavuvexo.portisaacpottery.co.uk/uploads/1/3/2/7/132712127/mogoremiwoxeja-takulibejok-kojunab-dodugerofelariw.pdf
    • http://files.rachaelbdesign.com/uploads/1/3/1/4/131438245/4b6fc9f9c.pdf
    • https://4a3324fa-5583-411b-8458-a2eef10d3a65.filesusr.com/ugd/d775a9_8977f9e8731f4430a7e8fc1d796c7ab5.pdf?index=true
    • https://31c43f4f-8ded-4d85-b86b-a3c8720dcc83.filesusr.com/ugd/b52961_441cb437ff7e4a90b87ecf11649e22de.pdf?index=true
    • https://aad1cd90-b90b-4588-8345-5a01583b6219.filesusr.com/ugd/daca0d_06f904715fc248a2af4e522a708edcd9.pdf?index=true
    • https://8e08556c-f363-4288-ae4a-6f4d20815744.filesusr.com/ugd/136d07_0ee6a7edf83a4eca817bde50eade11f3.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0461/8600/4633/files/dreams_movie_song_malayalam.pdf
    • https://cdn.shopify.com/s/files/1/0435/4211/8555/files/carbon_footprint_survey.pdf
    • https://b0b5a9f3-aa9f-4e07-ab4c-9d6d57cbf5dc.filesusr.com/ugd/b65acf_e014c52273c14a47a791eb876ecdc14a.pdf?index=true
    • https://a0c2fe78-e7d7-4e79-bf4c-a8d024b3662e.filesusr.com/ugd/38eac1_980fbeb5485149fc96cebb5d3bd40096.pdf?index=true
    • https://0264477b-ea78-43d1-8af5-91b6fe20bba8.filesusr.com/ugd/217b8a_6834d5af473247fb9a25510c39095285.pdf?index=true
    • https://3dba4196-45a7-4bb8-8e81-7c103f1d50f8.filesusr.com/ugd/7603ae_6b43484c9f39402b873c7ca691e68048.pdf?index=true
    • 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_off00006509.bin
b79a060a9621e451fbbfcfde360af8ec8823535d65d5d9686daca268f396bd0e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6509 5132 bytes
font_01_sfnt_off00007651.bin
6dbf98d881c64a4ed0776fd73a63ec2b738ca8b62868da086e7caef8b1b50acb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7651 10284 bytes

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