Malicious PDF — malware analysis report

Static analysis result for SHA-256 f3f0e253d8afb934…

MALICIOUS

PDF

45.3 KB Created: 2020-08-30 21:55:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 871308df483cf5b27dc2442029c9405a SHA-1: 47397eac6b96f30b3954acca0c21dd8f0c7aac4a SHA-256: f3f0e253d8afb934ceb939e8f5b1e9e366a63fab7786f012067788d90e71b8d9
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing 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 'trucos dragon ball xenoverse'. This suggests a social engineering tactic to entice clicks to the malicious redirector. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs, further supporting the redirection attack pattern.

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/wix?keyword=trucos+dragon+ball+xenoverse
    • https://cdn.shopify.com/s/files/1/0434/3873/5517/files/iicrc_s500_free.pdf
    • https://cdn.shopify.com/s/files/1/0430/1671/6437/files/hot_twink_porn.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/datumaf.pdf
    • https://cdn.shopify.com/s/files/1/0428/6880/1695/files/58064270739.pdf
    • https://cdn.shopify.com/s/files/1/0429/0710/7495/files/pagefadigakaguxunomemagak.pdf
    • https://cdn.shopify.com/s/files/1/0428/4855/1068/files/bafizazavon.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zavoriduxosijalas.pdf
    • https://cdn.shopify.com/s/files/1/0428/0962/2687/files/zavabulorazelosubusowe.pdf
    • https://cdn.shopify.com/s/files/1/0427/8052/4710/files/giwetapa.pdf
    • https://cdn.shopify.com/s/files/1/0428/5209/0022/files/7_days_to_die_nitrate_powder.pdf
    • https://cdn.shopify.com/s/files/1/0429/5265/5002/files/68229009301.pdf
    • https://cdn.shopify.com/s/files/1/0433/4583/8248/files/mangal_emotional_intelligence_inventory.pdf
    • https://cdn.shopify.com/s/files/1/0432/0778/6657/files/75716145980.pdf
    • https://static.usrfiles.com/ugd/b8c837_bd4f171c888e4876a82e3c5141e8aab8.pdf
    • https://static.usrfiles.com/ugd/b8c837_4890071b2bbf4314940612ace5b2b058.pdf
    • https://static.usrfiles.com/ugd/8c0e65_9b92e97dff6849c3820a77a38a376dcc.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_off000071d5.bin
50c325a343101a0ae5c68cde0c019496e917e236e77dee4cf806ba8b2f716f0b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x71D5 5324 bytes
font_01_sfnt_off00008402.bin
c6eb4a19e5d617ebf0602d479927026a3ea0b1a04d810611df47b67b0b8038f5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8402 10560 bytes

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