Malicious PDF — malware analysis report

Static analysis result for SHA-256 59edf657578eb408…

MALICIOUS

PDF

33.1 KB Created: 2020-09-01 00:45:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a51a37e6160141adc5fca1d09d510922 SHA-1: 6fa4b9e5f0e1b9ecee9f34ff6b1e3d63fcd1477e SHA-256: 59edf657578eb408009102a491d1bba92d32a3f10a9ca6526c801cb534df0442
150 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, also contains the same malicious URL. This indicates a clear intent to lure users to malicious infrastructure, likely for SEO poisoning or phishing purposes.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.ru/wix?keyword=lgbt+coloring+sheets
    • https://static.usrfiles.com/ugd/e33828_d4735876d8c4409fade97ed063c020fe.pdf
    • https://static.usrfiles.com/ugd/b8c837_d59cec74088c4297bda894a3449ecb75.pdf
    • https://static.usrfiles.com/ugd/a59130_15c410693d884dbfafd066b41106bd94.pdf
    • https://static.usrfiles.com/ugd/b8c837_896367473ce44bd59dd3671ef063cd83.pdf
    • https://static.usrfiles.com/ugd/ca9b0a_a5c58fb0db1a44f1ba882a7ca0abd328.pdf
    • https://static.usrfiles.com/ugd/cd79e3_57c1c869f3be484db8025b757aa14d1a.pdf
    • https://static.usrfiles.com/ugd/83b1b3_37d39d0694504df8a44562d8bd047c94.pdf
    • https://static.usrfiles.com/ugd/906e9f_b2dfa8e16b644912bf08f9b905bd8dde.pdf
    • https://static.usrfiles.com/ugd/3e5d97_862ec7dd51a54fbaa09009f7d087b744.pdf
    • https://static.usrfiles.com/ugd/8de238_28fe0c6282e64861a4a48d49b2c33592.pdf
    • https://static.usrfiles.com/ugd/b8c837_901166200ca84c9492832501ae1e2cc4.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_off0000460f.bin
8e85ce54c1eb5e1604f96ce5f061d4429a5311803b6e3c4ff227e7515f5d7371		 pdf-font-stream PDF embedded font (sfnt) at offset 0x460F 4932 bytes
font_01_sfnt_off000056de.bin
1d5560306718979531d0972f38fdde8a19012aa15d31a836e94398002af9df2c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x56DE 9860 bytes

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