Malicious PDF — malware analysis report

Static analysis result for SHA-256 d4a3390375b31832…

MALICIOUS

PDF

34.2 KB Created: 2020-08-29 19:55:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4a34f851532659c2a980cdb85e7ffb62 SHA-1: f63de929121aaac4de5255d2f355e2b1dac605ad SHA-256: d4a3390375b318321b5b9b9a1375ade58fbca00fee92b1698ecb7708f8239d95
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a redirector service. The document body, though heavily obfuscated, contains the URL 'https://ttraff.me/wix?keyword=atlas+de+cirugia+ginecologica+kaser', which is flagged as a malicious redirector. This suggests the document is designed to trick users into visiting malicious sites, likely for phishing or malware distribution.

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=atlas+de+cirugia+ginecologica+kaser
    • https://static.usrfiles.com/ugd/2c608b_592a894328314629848307766d94fca7.pdf
    • https://static.usrfiles.com/ugd/b8c837_7965b7021d734b74bcf01906dc02aa5d.pdf
    • https://static.usrfiles.com/ugd/d43733_ad8a7e0e2e4e480d9b1bc6fd2917f941.pdf
    • https://static.usrfiles.com/ugd/b8c837_ec45ed71bece4e2e823bf572376c4d79.pdf
    • https://static.usrfiles.com/ugd/b8c837_96d34b56c197424fafc552825940a387.pdf
    • https://static.usrfiles.com/ugd/b8c837_671c9cfb155b43dba4c7feeae1ae0b8e.pdf
    • https://static.usrfiles.com/ugd/b8c837_7e1cfa5f82a4405b85701f53d47f60ea.pdf
    • https://static.usrfiles.com/ugd/b8c837_30fd54937558457bb69c065553ce4808.pdf
    • https://static.usrfiles.com/ugd/b8c837_fcc17a7272924eab8106535be1aeb6b5.pdf
    • https://static.usrfiles.com/ugd/a382ee_60a5fac1e85847d39db871b8393b9c31.pdf
    • https://static.usrfiles.com/ugd/760101_7db7aa3cd7fb4695949dcee3abbaa43c.pdf
    • https://static.usrfiles.com/ugd/b8c837_33addcbd8a7c4947b9607219c9691ddd.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_off0000490a.bin
5d9c075d9aa753e95b5ddfb948500ef8718b9c50bafc535af17d2e89cd046be8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x490A 5160 bytes
font_01_sfnt_off00005a99.bin
3dd7bdde29c21d589bf1e1688a5c5f04b025c4b403fbaa2e37c9663167838945		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A99 9972 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.