Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7e3e40bd1d20bf0…

MALICIOUS

PDF

64.2 KB Created: 2020-08-31 05:06:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 304ed006c272010c5ecb4f893b9dc6ae SHA-1: 68ef44ed05390ca6aecd69b9b600511dcc6404fb SHA-256: e7e3e40bd1d20bf01b54dff39eba49f6d5bcb5339064facc7b75df59f480d11f
152 Risk Score

Malware Insights

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

The PDF contains a link that redirects to a known malicious domain, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The embedded URL in the document body, 'https://ttraff.ru/wix?keyword=what+games+are+on+atari+flashback+8', is the primary indicator of malicious intent. The PDF_SEO_LINK_FARM heuristic indicates a large number of outbound links, suggesting a link farm or SEO poisoning attempt to distribute malicious content. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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.ru/wix?keyword=what+games+are+on+atari+flashback+8
    • https://static.usrfiles.com/ugd/585b1d_12427d8197e14ba0bd1c28b99ca20837.pdf
    • https://static.usrfiles.com/ugd/b8c837_7fc11c3a676642a194389e4fea123cbc.pdf
    • https://static.usrfiles.com/ugd/90c678_9e8831da248a46e1834a578dc611e4d1.pdf
    • https://static.usrfiles.com/ugd/fb83f1_d7ea1156e0404f17975630a87ebeda85.pdf
    • https://static.usrfiles.com/ugd/dcfb95_6b3e812a90f34f3097ce72aa9cafb7ec.pdf
    • https://cdn.shopify.com/s/files/1/0431/2917/6232/files/26861054020.pdf
    • https://cdn.shopify.com/s/files/1/0449/0225/2699/files/87689828877.pdf
    • https://cdn.shopify.com/s/files/1/0433/7080/7461/files/tokufuzoxupemujipit.pdf
    • https://static.usrfiles.com/ugd/ca32a8_c8cb9b396da34c8f8240c00e09a332c3.pdf
    • https://static.usrfiles.com/ugd/b88e3d_644582a569a54387a618ff30dbbd73d1.pdf
    • https://static.usrfiles.com/ugd/4b7290_7f370a1934d246a397eb5343d4c2e472.pdf
    • https://static.usrfiles.com/ugd/b8c837_d0183fa233b04eaba1a5c57c03c6be3f.pdf
    • https://static.usrfiles.com/ugd/80c1db_ba47d38237c34158bf4c7267b9e8d504.pdf
    • https://cdn.shopify.com/s/files/1/0432/4786/1928/files/zobuwiderulugogafabi.pdf
    • https://cdn.shopify.com/s/files/1/0429/9984/0921/files/womug.pdf
    • https://cdn.shopify.com/s/files/1/0432/0310/0836/files/suzilimupirekugaxuraxo.pdf
    • https://cdn.shopify.com/s/files/1/0438/1910/6461/files/arris_surfboard_manager.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_off0000babc.bin
a99265d86e754484dee0d6c9790a8766cf186315daf5357886462c81af30682f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBABC 5708 bytes
font_01_sfnt_off0000ce12.bin
42037a382d31d79e510bbf09955faf42938dfbdcbc73a50e994fe89f485d1faf		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCE12 10988 bytes

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