Malicious PDF — malware analysis report

Static analysis result for SHA-256 be1e43ba7987ffe0…

MALICIOUS

PDF

35.7 KB Created: 2020-09-04 21:03:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 47fbd4f98d4ad2b3ccfc6d558de7cd9d SHA-1: baba76bb0099cddbea8838439ce631d95d964163 SHA-256: be1e43ba7987ffe0d3712377c0a20b76d2d8022f25e12f74aab8c877840c7944
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic identifying a link to a known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the URL that triggered the heuristic. This suggests the document's primary purpose is to redirect the user to malicious content, likely for further exploitation or phishing. 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.club/wix?keyword=beneficial+insects+in+rice+pdf
    • https://static.usrfiles.com/ugd/ac72e0_c56c75ad0b2a440d810cce40d30e1a84.pdf
    • https://static.usrfiles.com/ugd/d5cf39_561c338b19ef470391cd3143befce5c5.pdf
    • https://static.usrfiles.com/ugd/9e41f0_e44b55debf484a5fa3ecdf7d33627e31.pdf
    • https://static.usrfiles.com/ugd/7f929b_5fe657b17da546c8a9f49a1c1a180265.pdf
    • https://static.usrfiles.com/ugd/57c819_e9d11b0c1c9a4c37a858d3e52d1ead65.pdf
    • https://static.usrfiles.com/ugd/0ad6c7_13c30c3e200e4dbcb72f382639812c26.pdf
    • https://static.usrfiles.com/ugd/0d089b_a362a3b45efb4b5c9c8d471f9bc965ac.pdf
    • https://cdn.shopify.com/s/files/1/0427/9068/2783/files/farmer_s_almanac_2020.pdf
    • https://cdn.shopify.com/s/files/1/0435/3087/9125/files/sanavajuzibotilit.pdf
    • https://cdn.shopify.com/s/files/1/0434/1674/8188/files/50421450487.pdf
    • https://cdn.shopify.com/s/files/1/0429/3997/3788/files/72622662075.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_off00004bb8.bin
3d12e81e28fe98d2927e4d82ff8a177af530bda668463a6a9057a056d8b17123		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4BB8 5200 bytes
font_01_sfnt_off00005d75.bin
1bf972e8dc8140d02c5163b020ca37c4ae7822d50ee09b39c34d2f975039c829		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D75 10888 bytes

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