Malicious PDF — malware analysis report

Static analysis result for SHA-256 3c9ee1c9b8fe1593…

MALICIOUS

PDF

76.3 KB Created: 2020-09-18 17:06:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b41182ce89a46930176c7a265127a518 SHA-1: a9a81e331feb4d1cf2a4383207fad7bb07e34087 SHA-256: 3c9ee1c9b8fe1593fd2c3a587791411be83f391de8af708d2d6b50dbfe8ac782
150 Risk Score

Malware Insights

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

The PDF was flagged by multiple critical heuristics for malicious redirector links and being part of a link farm. The embedded URL https://ttraff.club/wix?keyword=ramas+de+trabajo+en+administracion+de+empresas is the primary indicator of malicious intent, likely serving as a lure to a phishing or malware distribution site. The ML classifier also strongly indicated maliciousness.

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.club/wix?keyword=ramas+de+trabajo+en+administracion+de+empresas
    • https://cfebf1bb-8823-4cb1-a337-667486bc5789.filesusr.com/ugd/91e123_246cf552f88047ec91c1717db7750f4f.pdf?index=true
    • https://e42994b6-ef8c-4d8d-af98-7cbb7cd21bdb.filesusr.com/ugd/a891c0_07df1642b0da49b0a16e5b87c29e15e2.pdf?index=true
    • https://f301ad72-1cc0-4664-9df9-1c2f209e5363.filesusr.com/ugd/a12125_edd3a92244574088a054282a78346a93.pdf?index=true
    • https://2c6ca5f0-87da-492b-94d4-c9b6be72855b.filesusr.com/ugd/53cfc7_c1ccb78d0b9047d4b25faa1852a6ce16.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0429/7107/0617/files/65673457473.pdf
    • https://1fd6ba6c-b7d7-45b1-82e2-40cd1a75eabc.filesusr.com/ugd/01e791_55294376ee5c4350a68d56edf1f5145a.pdf?index=true
    • https://fbf4e847-cca6-4a9c-80f5-acb56d07fdc2.filesusr.com/ugd/dcf311_ce1d1c20277b4708bf0e1fde87370671.pdf?index=true
    • https://268f30c9-f555-4943-96e2-d474b8a4e188.filesusr.com/ugd/04c368_bd4b7553cf92439780d2126d26773a92.pdf?index=true
    • https://8dd5e39d-aa6a-4bd2-a6a5-b4e2c64c55f9.filesusr.com/ugd/9ea91e_3c36c5846b774ed3b8c4850e492bba07.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0435/3094/4664/files/wubamizipulijetofap.pdf
    • https://cdn.shopify.com/s/files/1/0432/6352/5029/files/graph_algorithms_cheat_sheet.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_off0000e8fb.bin
6a392ef675bcf2459299da0b0d08e57f9cb7a1f07744b2813a1f8c1e33990a11		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE8FB 5408 bytes
font_01_sfnt_off0000fb49.bin
09f454922d490608fd8b314c59f33d10dffdfbfd526c992b093873da4f05f438		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFB49 12020 bytes

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