Malicious PDF — malware analysis report

Static analysis result for SHA-256 d043fa26cea00b25…

MALICIOUS

PDF

57.0 KB Created: 2020-09-05 06:07:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6a788b6975c00943a8dc03ac767cc786 SHA-1: 6f8e44686024924ae550c84b0ed60ac119417469 SHA-256: d043fa26cea00b25fe763fdcc9980be225fbbcacba267a4da3ec122162c6c975
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one critical heuristic firing indicating a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains text that appears to be a lure for movie templates, directing the user to the malicious URL. The presence of numerous external links suggests a link farm or redirection strategy to obscure the final malicious destination.

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=vinnaithandi+varuvaya+movie+templates
    • https://static.usrfiles.com/ugd/89363e_fe4b8f49903c4d5785f467ce60b55f37.pdf
    • https://static.usrfiles.com/ugd/b8c837_3ca6f42af8504f15a09752679f7346c2.pdf
    • https://static.usrfiles.com/ugd/5a1791_b645f0d61ee546689753b19ac403ab56.pdf
    • https://static.usrfiles.com/ugd/9e53d4_fc0a72ca19c34dc284c4c5a346153db7.pdf
    • https://static.usrfiles.com/ugd/724fb5_a0439515d321420996fae0162d060f05.pdf
    • https://cdn.shopify.com/s/files/1/0430/8523/4338/files/kisutirurajupu.pdf
    • https://cdn.shopify.com/s/files/1/0433/3443/4969/files/taxonomy_classification_worksheet.pdf
    • https://static.usrfiles.com/ugd/b6aaa0_a3c080c1848c41ffae6a6253b5039a81.pdf
    • https://static.usrfiles.com/ugd/e73fea_6d0485b0a5964c80bc90aad980c7317f.pdf
    • https://static.usrfiles.com/ugd/b8c837_717dc84d778946c8b63efb36bd22045a.pdf
    • https://cdn.shopify.com/s/files/1/0437/6055/0046/files/nugesemetigepipes.pdf
    • https://cdn.shopify.com/s/files/1/0429/6704/0163/files/30872673095.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_off00008c41.bin
40a8e5972887a8bf7189f4ef1246945ba4b179c933b8e8ae0e5eacd251d0245d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8C41 5328 bytes
font_01_sfnt_off00009e40.bin
ef57cd0d7837ca564c3d0f9906bfdd681334c871bd1dadd998667e9e54160a67		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9E40 10352 bytes
font_02_sfnt_off0000c1e9.bin
ead7fd593d7f5feef6f283420e9b55f8fa4552f107c64b0063d474dd3355abd8		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC1E9 16164 bytes

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