Malicious PDF — malware analysis report

Static analysis result for SHA-256 488c24594116e527…

MALICIOUS

PDF

69.0 KB Created: 2020-08-17 18:10:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3a3f83594d052b6f3a0cccf243c8fe8e SHA-1: c1299f396e5efb93edf817b94cb5a932d8394cc8 SHA-256: 488c24594116e527e01f065b6ce78c22c7ffdbc06353206cc68403ea75b6da55
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the URL that triggered the redirector heuristic. This suggests the primary goal is to redirect the user to malicious infrastructure, likely for further exploitation or credential harvesting. No scripts were extracted from this sample.

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=aquelarre+juego+pdf
    • http://files.asiaklik.com/uploads/1/3/1/0/131071095/xosojosin.pdf
    • http://files.poderezollaio.org/uploads/1/3/1/4/131407704/wezibunuv.pdf
    • https://cdn.shopify.com/s/files/1/0430/9562/1781/files/lopaximafonorafi.pdf
    • https://cdn.shopify.com/s/files/1/0433/1739/5614/files/zanusomewatijavegusufor.pdf
    • https://cdn.shopify.com/s/files/1/0430/0495/2735/files/fewupi.pdf
    • https://cdn.shopify.com/s/files/1/0433/9505/5777/files/nunopuvugin.pdf
    • https://cdn.shopify.com/s/files/1/0437/5393/0904/files/halloween_worksheets_kindergarten.pdf
    • https://cdn.shopify.com/s/files/1/0437/9354/7424/files/rational_choice_theory_and_religion.pdf
    • https://cdn.shopify.com/s/files/1/0430/4506/0762/files/rogete.pdf
    • https://cdn.shopify.com/s/files/1/0431/1092/4437/files/kidazijemapemum.pdf
    • https://cdn.shopify.com/s/files/1/0429/3260/0985/files/helm_chart_template_functions.pdf
    • https://cdn.shopify.com/s/files/1/0434/8998/4678/files/bangsamoro_basic_law_advantages_and_disadvantages.pdf
    • https://cdn.shopify.com/s/files/1/0433/0343/6446/files/kolixosuzuvifileninukup.pdf
    • https://cdn.shopify.com/s/files/1/0430/9565/4554/files/26285292889.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_off0000cd58.bin
8486919b24f917340e7578a5a15862dc731f1a608364af10eac5d80cf3c9bd89		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCD58 5220 bytes
font_01_sfnt_off0000df2c.bin
bb61e4c272cafc86f1c6cb90ee7f8692b72dfbc8be4b81d2438210a763dbcf6c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDF2C 11836 bytes

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