Malicious PDF — malware analysis report

Static analysis result for SHA-256 827086c66b932e6c…

MALICIOUS

PDF

40.1 KB Created: 2020-09-17 13:04:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 513a8e65211d189cb5d510cc1452af08 SHA-1: 354d3aadfc7f7c67f00c299faf2569459c20c424 SHA-256: 827086c66b932e6cb8b83a70223d4ece2173b5b91b7be459cc60e7e7dcca6dd5
120 Risk Score

Malware Insights

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

The PDF contains a link farm designed to direct users to a malicious redirector. The primary malicious URL identified is https://ttraff.me/wix?keyword=sin+city+deciples+mc+florida. The document body is heavily obfuscated and appears to be a byproduct of the PDF generation process rather than user-readable content.

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.me/wix?keyword=sin+city+deciples+mc+florida
    • http://files.bearvalleyanimalhospital.com/uploads/1/3/1/3/131381850/3719425.pdf
    • http://zorefa.benjamindbrown.com/uploads/1/3/2/8/132814930/ce246324.pdf
    • http://files.depedkabankalancity.com/uploads/1/3/0/8/130874090/gapenugulovokuxi.pdf
    • http://vazibubus.belizehistorysjc.com/uploads/1/3/1/1/131163782/1300528.pdf
    • http://files.wtfprintnz.com/uploads/1/3/0/7/130740517/judapebo_dovizomu_nijipi.pdf
    • http://vifireg.canadianastatic.com/uploads/1/3/1/3/131383483/ratiwalamaxebalagir.pdf
    • https://1bdecc7c-4d40-4fca-ae72-54cdf1781662.filesusr.com/ugd/c8df25_4dd33128dabc4f6b846ddf34ae450e8a.pdf?index=true
    • https://efc4d397-5d8a-4bac-aee3-c5966bcf6f53.filesusr.com/ugd/3ce946_a297c562cd5d4a548b855275b6b623fd.pdf?index=true
    • https://ce2bd3f1-7a38-479a-968c-57316300d807.filesusr.com/ugd/8508de_e459bacfe26c4a9eb9f11e6907103d0a.pdf?index=true
    • https://70d6d9fd-b119-4faa-91bc-5bd02777a3d1.filesusr.com/ugd/07e02c_8ade1931969246ffac32d356b3fdca40.pdf?index=true
    • https://d8026418-aabe-4f6f-9769-f9d62c9c2cef.filesusr.com/ugd/724fb5_1dcee7ea933e406fa77fcd5bb0a210b6.pdf?index=true
    • https://8d291fb7-852f-4a3f-b29a-23aedd1a038b.filesusr.com/ugd/95bb70_96aa44f5d8b2428cb0077666659f14f5.pdf?index=true
    • 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_off00005d4e.bin
d59b81d0b12416b2e9aabeeeaca8b36d7bb88a2af31f0b69fb68b463e3fb730a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D4E 5508 bytes
font_01_sfnt_off00006ff9.bin
166048886d0326798871831ab73d839ed959c72045ffbdc0ed8b0954040c92a0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6FF9 10664 bytes

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