Malicious PDF — malware analysis report

Static analysis result for SHA-256 9b563e33bdcaef45…

MALICIOUS

PDF

53.1 KB Created: 2020-08-27 23:09:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 042ee03d7c2e66296c1a865390dcd32b SHA-1: 098a2b38808b0a3d73cd17cf7724143123038070 SHA-256: 9b563e33bdcaef4512db64340ede3742d26b9fcbf88d441f746608e4f2d1cb11
150 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link disguised as a movie download, which is a common lure for phishing or malware distribution. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=free+download+the+exorcist+1973+movi', indicating an attempt to redirect the user. The presence of a PDF link farm further supports the malicious intent of distributing links to external content.

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.cc/pify?keyword=free+download+the+exorcist+1973+movi
    • http://zegodeba.brianlahittephotography.com/uploads/1/3/1/1/131164118/d706a6694.pdf
    • http://rumibajef.unexploredterritory.net/uploads/1/3/0/8/130814328/2964893.pdf
    • https://cdn.shopify.com/s/files/1/0437/3233/6791/files/genetics_in_medicine.pdf
    • https://cdn.shopify.com/s/files/1/0427/6341/9814/files/jigov.pdf
    • https://cdn.shopify.com/s/files/1/0435/9038/5821/files/zolopilevo.pdf
    • https://cdn.shopify.com/s/files/1/0431/2665/3090/files/sutezu.pdf
    • https://cdn.shopify.com/s/files/1/0431/1095/7210/files/84940366992.pdf
    • https://cdn.shopify.com/s/files/1/0431/9612/1251/files/payment_request_form_sample.pdf
    • https://cdn.shopify.com/s/files/1/0431/0273/2448/files/59332369619.pdf
    • https://cdn.shopify.com/s/files/1/0433/8535/6449/files/tumanagefififug.pdf
    • https://cdn.shopify.com/s/files/1/0433/9243/4326/files/37866419071.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_off0000905d.bin
fe3605ae2086267c008667f355eb16cdc97c5d89e71d13fb09253fd2dc65b1f6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x905D 5804 bytes
font_01_sfnt_off0000a413.bin
7b6c1738e6430b18e7b10dc6d210192af3402ccaaffad1f73ce3884856fddc1a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA413 10416 bytes

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