Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0de53abbcd7a757…

MALICIOUS

PDF

33.3 KB Created: 2020-08-21 18:49:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 492a4366ef4032e09bf9432c3b93ca93 SHA-1: 44df8d4670266116a7b88e3f3b9beda5e1bb6d44 SHA-256: e0de53abbcd7a757bf4481efce5bd926ee63e64e754e4b7a0c11f9ad4723e53c
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic match for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it directs users to malicious infrastructure. The document body, though heavily obfuscated, contains a URL that appears to be a lure related to a game. The file also contains a PDF_SEO_LINK_FARM heuristic, suggesting it's part of a larger campaign to generate traffic. The primary IOC is the redirector URL, which is likely used to deliver a secondary payload.

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.cc/pify?keyword=busman+parking+3d+game
    • http://files.newincomastires.com/uploads/1/3/1/4/131438759/6002272.pdf
    • http://files.cliftonrefugeesponsorship.co.uk/uploads/1/3/0/9/130969046/6049883.pdf
    • http://tutimus.futbolpapa.com/uploads/1/3/0/9/130969959/milegojuxeluxitirav.pdf
    • https://cdn.shopify.com/s/files/1/0436/0480/3746/files/20613472660.pdf
    • https://cdn.shopify.com/s/files/1/0435/5083/4847/files/tijazesasinelovuresej.pdf
    • https://cdn.shopify.com/s/files/1/0428/4206/3004/files/nenojok.pdf
    • https://cdn.shopify.com/s/files/1/0434/7022/5574/files/vafubowolofikol.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/42386580717.pdf
    • https://cdn.shopify.com/s/files/1/0444/3917/5335/files/definition_of_capital_market.pdf
    • https://cdn.shopify.com/s/files/1/0432/4117/7252/files/20109977266.pdf
    • https://cdn.shopify.com/s/files/1/0439/1452/6872/files/lutukasizetibipafefevuwer.pdf
    • https://cdn.shopify.com/s/files/1/0436/4628/8025/files/sonodek.pdf
    • https://cdn.shopify.com/s/files/1/0431/4831/2740/files/paulo_coelho_aleph_franais.pdf
    • https://cdn.shopify.com/s/files/1/0437/0920/2597/files/57704476468.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_off000044e8.bin
dd8ea9a3f90d8b0ddbd5a3c59acb97307a18c4a835086eec53aaded5d6dd9158		 pdf-font-stream PDF embedded font (sfnt) at offset 0x44E8 5524 bytes
font_01_sfnt_off00005793.bin
44d64d60ddeefc1b1c13df55e3df490dbd59cc459d81281e2c661974539ed44e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5793 9780 bytes

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