Malicious PDF — malware analysis report

Static analysis result for SHA-256 c6db063017a6387a…

MALICIOUS

PDF

47.4 KB Authoring application: OpenOffice.org First seen: 2020-09-24
MD5: bd6861e6e04bff6e927daf74239cc670 SHA-1: 33c58cd38a6fd54d17f061057c095b44330a93c7 SHA-256: c6db063017a6387a94014170cd30327ddc84873d1ab92d6bf08f81e3d50f1cd1
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF was flagged by ClamAV as Pdf.Phishing.TtraffRobotInstall-7605656-0 and a machine learning classifier. The primary heuristic indicates a 'PDF_SEO_LINK_FARM' with numerous external PDF links, suggesting a campaign to drive traffic to these linked documents. The document body contains a mix of obfuscated text and URLs, reinforcing the link farm behavior. The intent appears to be to redirect users to a large number of external PDF files.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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 http://mol.tandr.ru/uploads/2020/01/28/4249330.pdf In PDF document text
    • http://1ststitch.ca/uploads/1/3/0/2/130287940/f5dfcf9a547.pdfIn PDF document text
    • https://wikixajuv.weebly.com/uploads/1/3/0/5/130539881/33760.pdfIn PDF document text
    • http://mpaclarke.com/uploads/1/3/0/3/130379058/turapebave.pdfIn PDF document text
    • http://my-genuine-life.com/uploads/1/3/0/2/130270913/6657851.pdfIn PDF document text
    • http://tapokav.clotheslux.com/uploads/2020/01/29/senapikuv-difulog-gabobo.pdfIn PDF document text
    • http://plebmc.net/uploads/1/3/0/3/130379074/fetox.pdfIn PDF document text
    • http://donnadoyle.pink/uploads/1/3/0/5/130551536/f3dc677a4d20.pdfIn PDF document text
    • http://brettwalter.com/uploads/1/3/0/6/130621641/7de0d17463577.pdfIn PDF document text
    • http://mrmacbiblebook2.com/uploads/1/3/0/5/130588594/130588594.html#digiland+dl808w+manualIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001266.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1266 10568 bytes
SHA-256: cb656d5d74122cb81613de7396dc6f29b75ebbe70259dc2c85225e29998088e0
font_01_sfnt_off000072e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72E4 16180 bytes
SHA-256: 669a22844ddb84b64a1d93eb6147c2b8b7ca76f4316fe4be2bbf69c96252e72a

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