Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd392a5e746c9e3e…

MALICIOUS

PDF

40.3 KB Created: 2020-09-20 09:48:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 540fc4783d2e47c7d333223ba78c0af7 SHA-1: 7b46b2c037ead71c9c477c309b82076eba9e4e5a SHA-256: fd392a5e746c9e3ebd4e1782480343a422fd34833e4c56afb2dc9d830acf19fd
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains a deceptive title 'Quiet partner ii reset' and embeds a large number of external links. One of these links, 'https://ttraff.link/wix?keyword=quiet+partner+ii+reset', is identified as a malicious redirector. The heuristic 'PDF_SEO_LINK_FARM' indicates a mass of external PDF links, suggesting a link farm designed to manipulate search engine results or distribute malicious content. The presence of multiple unknown URLs further supports the malicious intent.

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.link/wix?keyword=quiet+partner+ii+reset
    • http://tuburibit.globalstakesconsulting.com/uploads/1/3/2/6/132696067/972ed87b61a.pdf
    • http://files.giuliosartisanalpasta.com/uploads/1/3/1/1/131164476/toniguriw-zanafomu.pdf
    • http://files.bethelchurchipm.com/uploads/1/3/1/1/131163976/5b481b20b7ed4.pdf
    • http://pumazipa.jenniferjostcounseling.com/uploads/1/3/0/9/130969940/repipol.pdf
    • http://files.mosquitosaregone.com/uploads/1/3/0/7/130775565/1582812.pdf
    • http://files.infinitefitness.studio/uploads/1/3/1/3/131380895/lememexevonodikudo.pdf
    • http://files.alignwellnessatl.com/uploads/1/3/0/8/130813135/25f771ac8e24.pdf
    • https://cdn.shopify.com/s/files/1/0434/4204/5090/files/22983993899.pdf
    • https://cdn.shopify.com/s/files/1/0430/6049/4485/files/importance_of_marriage_in_islam.pdf
    • https://cdn.shopify.com/s/files/1/0438/1753/3597/files/advertising_and_sales_management_notes.pdf
    • https://cdn.shopify.com/s/files/1/0428/3770/4867/files/vijigusividu.pdf
    • https://cdn.shopify.com/s/files/1/0427/6341/9815/files/toefl_writing_exam_format.pdf
    • https://cdn.shopify.com/s/files/1/0479/2526/4540/files/tinted_reading_glasses_for_computer.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_off00005435.bin
65023aa2af0f1d6d3539c1e7ca1f9135502ff3585a9b05ffe0c890bcb930855b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5435 4616 bytes
font_01_sfnt_off000063e5.bin
e11cf6bb901f0f94dd79d764baf7a5a8147bdb612fed62524406cae69fe2f256		 pdf-font-stream PDF embedded font (sfnt) at offset 0x63E5 10144 bytes
font_02_sfnt_off00008674.bin
ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8674 4324 bytes

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