Malicious PDF — malware analysis report

Static analysis result for SHA-256 d66efb173062ce55…

MALICIOUS

PDF

44.5 KB Created: 2020-09-18 22:04:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 015b5b993cdf1951d1a68dede0212893 SHA-1: 6cde49907e1c9fa0ab52458c6effc3f6fb0ab3ab SHA-256: d66efb173062ce552d28ba2a7eed9aa30472b508740b2128d0345d87fbca86a7
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, specifically pointing to 'https://ttraff.link/wix?keyword=playboy+bunny+manual'. This link is presented within the document body, disguised as a 'Playboy bunny manual', indicating a social engineering lure. The file also exhibits characteristics of a PDF link farm, with numerous embedded URLs, many hosted on Shopify. The primary malicious IOC is the redirector URL, which likely leads to further malicious content or phishing pages.

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.link/wix?keyword=playboy+bunny+manual
    • https://cdn.shopify.com/s/files/1/0435/8638/8136/files/19241845287.pdf
    • https://cdn.shopify.com/s/files/1/0431/5421/0980/files/wufaginotoni.pdf
    • https://cdn.shopify.com/s/files/1/0434/5570/9351/files/naruto_season_9.pdf
    • https://40f9d343-2aca-4c6f-b8c0-34d63f0043bd.filesusr.com/ugd/bd1fc0_166966b715ea4d3fb8f118f0edd61f1a.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0435/4116/8283/files/roche_clinical_trials.pdf
    • https://cdn.shopify.com/s/files/1/0454/4095/8614/files/triangle_angle_bisector_theorem.pdf
    • https://cdn.shopify.com/s/files/1/0461/0942/5828/files/mubitukalivibujinuzo.pdf
    • https://cdn.shopify.com/s/files/1/0435/4765/6351/files/xusupugimegapawali.pdf
    • https://cdn.shopify.com/s/files/1/0431/4310/2613/files/watlow_ez_zone_manual.pdf
    • https://cdn.shopify.com/s/files/1/0429/6150/2362/files/kebidikotezitodinudi.pdf
    • https://cdn.shopify.com/s/files/1/0434/9041/0658/files/16070695043.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_off00007092.bin
26e5eee9282e8057dfe3a04f374eef83f926aee78487d87653ab80edcba4ca2a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7092 4800 bytes
font_01_sfnt_off000080dd.bin
0819074bdaec7225efa5475dc6143cc5162850a0574a2ca2b7c20ffb8278db83		 pdf-font-stream PDF embedded font (sfnt) at offset 0x80DD 10868 bytes

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