Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ec704f0ec1d6885…

MALICIOUS

PDF

106.2 KB Created: 2020-08-18 22:18:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 043ba9f014c13a1340a685fdad014415 SHA-1: 5ddd8e1950e1b25b5e587fd3d21cfd7d3dc1e51d SHA-256: 3ec704f0ec1d6885692274a9fe0a276420b964303b977de61bdd495dd8d2dd61
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a PDF link farm, with numerous links, many hosted on 'cdn.shopify.com'. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=free+templates+html5+css', suggesting a lure for free templates to redirect users to malicious infrastructure.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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.
  • 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=free+templates+html5+css
    • http://files.jimmymooreguitar.com/uploads/1/3/2/6/132695575/a1d6b0192.pdf
    • http://files.emiliomoralesmusic.com/uploads/1/3/0/8/130874554/tekad.pdf
    • http://fezupavi.jessiesflorist.com/uploads/1/3/1/1/131163658/zulovigapo-favuxoxisibole-koxufateremi.pdf
    • http://files.sharpnutrition.net/uploads/1/3/0/7/130739243/jititimafuviku.pdf
    • http://files.chatteriemainecoonroswell.com/uploads/1/3/0/7/130738806/6066150.pdf
    • https://cdn.shopify.com/s/files/1/0427/9956/2911/files/mafizolavezagi.pdf
    • https://cdn.shopify.com/s/files/1/0432/8947/7273/files/dba_ciencias_sociales_version_2.pdf
    • https://cdn.shopify.com/s/files/1/0430/6305/0394/files/68816069943.pdf
    • https://cdn.shopify.com/s/files/1/0437/2440/6938/files/roduwoximisifoduz.pdf
    • https://cdn.shopify.com/s/files/1/0433/3669/5959/files/jepesaferebefukisokugav.pdf
    • https://cdn.shopify.com/s/files/1/0433/0350/1989/files/wowaxavebewividavopumevit.pdf
    • https://cdn.shopify.com/s/files/1/0428/9419/6902/files/sebi_guidelines_for_mutual_funds_notes.pdf
    • https://cdn.shopify.com/s/files/1/0436/2466/1154/files/kuxafimi.pdf
    • https://cdn.shopify.com/s/files/1/0438/0885/0081/files/pdf_accessibility_webaim.pdf
    • https://cdn.shopify.com/s/files/1/0432/9259/0236/files/45112015430.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/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000166bd.bin
d7fb2387b89755b04fc2ee860426fa2d28ba17b78d73e0b28c3bcdcff648b911		 pdf-font-stream PDF embedded font (sfnt) at offset 0x166BD 5252 bytes
font_01_sfnt_off0001786c.bin
ecc090d15d9cbc29e8b02858de1e1f9f388cfa5e0a7dab566b183067fe7851ff		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1786C 10188 bytes

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