Malicious PDF — malware analysis report

Static analysis result for SHA-256 a36eb98d2a57d44f…

MALICIOUS

PDF

40.1 KB Created: 2020-08-18 19:54:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c0675a409abbbf34eed7dfd3dc4bd9ba SHA-1: 34ae4b14fa1f1036de1c58be91582792614b5811 SHA-256: a36eb98d2a57d44fd37c663b6cfde9da68e66b825dc4ffbdc2b3b9aed16543aa
150 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. This URL is likely used to redirect users to a malicious site. The document body, though partially obfuscated, contains text related to 'sea cadet uniform suppliers' and the malicious URL, suggesting a lure to entice clicks. The presence of numerous embedded links, many pointing to Shopify, further supports the link farm heuristic, indicating an attempt to obscure the malicious destination.

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=sea+cadet+uniform+suppliers
    • http://files.foodbiomedicalscience.com/uploads/1/3/2/6/132681394/7e1b9ce39.pdf
    • https://cdn.shopify.com/s/files/1/0431/1629/8393/files/cambridge_primary_science_learner_s_book_2.pdf
    • https://cdn.shopify.com/s/files/1/0432/0041/3856/files/bujidarakasaw.pdf
    • https://cdn.shopify.com/s/files/1/0431/2757/0596/files/mulula.pdf
    • https://cdn.shopify.com/s/files/1/0430/6056/0021/files/30914167251.pdf
    • https://cdn.shopify.com/s/files/1/0435/7367/4142/files/sexeweveribaroruwol.pdf
    • https://cdn.shopify.com/s/files/1/0433/0120/8232/files/74699876184.pdf
    • https://cdn.shopify.com/s/files/1/0430/3526/3138/files/7244589197.pdf
    • https://cdn.shopify.com/s/files/1/0434/1111/2092/files/fibuk.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000050be.bin
c99c2daa03abbf3cc5c443c2812f95361d791eb660ea480bed3c7f2d85bacfa6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x50BE 5288 bytes
font_01_sfnt_off0000628d.bin
cbe940a6ff5850397eb02365a3d01af6b8be0820b9179224d1f45d2be8cd7814		 pdf-font-stream PDF embedded font (sfnt) at offset 0x628D 10896 bytes
font_02_sfnt_off000085e6.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378		 pdf-font-stream PDF embedded font (sfnt) at offset 0x85E6 4324 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.