Malicious PDF — malware analysis report

Static analysis result for SHA-256 3529355f32811167…

MALICIOUS

PDF

55.7 KB Created: 2020-08-29 23:28:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7bda4a721dbda30282e14fb1ac41d130 SHA-1: 88bf9281f38019bd9b0dadbc2c00f2330ecb5169 SHA-256: 3529355f3281116781a853a34a2256e65ceb1095ba59e41f903af611f52f9702
120 Risk Score

Malware Insights

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

The PDF file contains heuristics indicating it's a malicious redirector and a link farm. The embedded URL 'https://ttraff.com/wix?keyword=imaikka+nodigal+songs' is a primary indicator of malicious intent, likely leading to further compromise. The document body, though heavily obfuscated, contains references to the same URL, reinforcing the lure.

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/wix?keyword=imaikka+nodigal+songs
    • https://cdn.shopify.com/s/files/1/0431/1239/9009/files/45606524255.pdf
    • https://cdn.shopify.com/s/files/1/0431/1243/1776/files/vikaxivirizifojifepajed.pdf
    • https://cdn.shopify.com/s/files/1/0433/5419/4085/files/free_online_cartoon_yourself_no.pdf
    • https://cdn.shopify.com/s/files/1/0462/1592/1818/files/baidyabati_current_weather_report.pdf
    • https://cdn.shopify.com/s/files/1/0435/8170/2301/files/17838704303.pdf
    • https://static.usrfiles.com/ugd/3aee12_7972cb2338614af2b440e9984a28f4ad.pdf
    • https://static.usrfiles.com/ugd/b8c837_bb28072733b24862b11105ec8d3431bb.pdf
    • https://static.usrfiles.com/ugd/b8c837_9d67ec2f2de2477b96a9c3a4be8db334.pdf
    • https://static.usrfiles.com/ugd/b8c837_71f729a6cd084929a663a34438542b81.pdf
    • https://static.usrfiles.com/ugd/b8c837_d2ed47b51d8f4aab89b7306997f4a98c.pdf
    • https://static.usrfiles.com/ugd/b8c837_8038d36d41934821ac87470cbef14c3d.pdf
    • https://static.usrfiles.com/ugd/b8c837_a6ac94d7694e49bdafb1d80a59324829.pdf
    • https://static.usrfiles.com/ugd/b8c837_21e0a85ceaa64d7caeb5db4b7b9dc534.pdf
    • https://static.usrfiles.com/ugd/b8c837_08b91a96f3c442e09092f9c64505cbca.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_off00008799.bin
00205abe535e415653ec501ee5fc59dfa4a61db76a59411823a4f78a57019fd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8799 4640 bytes
font_01_sfnt_off0000972d.bin
1a4f2433fab6d89cd0e32792cb546ce1429844db69b14e0db64a311ec26ca103		 pdf-font-stream PDF embedded font (sfnt) at offset 0x972D 14376 bytes
font_02_sfnt_off0000c45c.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC45C 4324 bytes

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