Malicious PDF — malware analysis report

Static analysis result for SHA-256 f85b4f5d5d7b0eea…

MALICIOUS

PDF

40.6 KB Created: 2020-09-01 00:40:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7d21515f40b7915a45e9bd8da391ad09 SHA-1: 6ea8f4dc1321e7779cfc1c24952abbbf7937c4aa SHA-256: f85b4f5d5d7b0eea47fad29038fad38fdce3b3d1fd7b6b22ca3fd0ee11c849b8
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it points to malicious infrastructure. The document body, though heavily obfuscated, contains text related to 'Commando 2 movie free in tamil' and the malicious URL. This suggests a lure to trick users into visiting the redirector, likely for further malicious activity.

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.ru/wix?keyword=commando+2+movie+free++in+tamil
    • https://static.usrfiles.com/ugd/d9d1f5_c00674c88c3e410cb3874402157105e3.pdf
    • https://static.usrfiles.com/ugd/5a1791_7a0659c1dc794c1e85547eec6dead22e.pdf
    • https://static.usrfiles.com/ugd/b8c837_82ffa41a2f0a4ea58ef08650f38e5c37.pdf
    • https://cdn.shopify.com/s/files/1/0430/7235/6505/files/98228894361.pdf
    • https://cdn.shopify.com/s/files/1/0427/9923/5228/files/17759433757.pdf
    • https://static.usrfiles.com/ugd/3aee12_9fbbde440e3f4b0d841fcc670e234e1e.pdf
    • https://static.usrfiles.com/ugd/6924eb_e211ab9427fc41b592b59d5155711adf.pdf
    • https://cdn.shopify.com/s/files/1/0428/0143/0695/files/mebikibet.pdf
    • https://cdn.shopify.com/s/files/1/0459/2848/0919/files/40424543306.pdf
    • https://cdn.shopify.com/s/files/1/0430/0279/0039/files/91905396708.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_off00004d27.bin
080443145d65961a4dc51f98f4a2a6d2980fbef35d269ad40cc87eb22354a2df		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4D27 4972 bytes
font_01_sfnt_off00005dfe.bin
3d98264af7820641427b9cf187263fe935efebd5aa1a0a96895c331d2c58b36a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5DFE 10060 bytes
font_02_sfnt_off000080ac.bin
ead7fd593d7f5feef6f283420e9b55f8fa4552f107c64b0063d474dd3355abd8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x80AC 16164 bytes

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