Malicious PDF — malware analysis report

Static analysis result for SHA-256 69be535596b2168a…

MALICIOUS

PDF

42.5 KB Authoring application: Karbon First seen: 2021-09-16
MD5: 2eec5e7877e17541c7c741843c250813 SHA-1: f53a3a1a1b1675a5936cdc9bb0fbf1f0d38bd457 SHA-256: 69be535596b2168a676a008e3568254c994e29e9c887eff100cabe851eecdad4
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various PDF files. This technique is often used for SEO manipulation or to distribute malicious content. ClamAV also detected this file as Pdf.Phishing.TtraffRobotInstall-7605656-0, indicating a phishing or malware distribution intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://newyearswim.co.uk/uploads/1/3/0/6/130603773/memevuzibagipakatef.pdf In PDF document text
    • http://bluesteelradio.com/uploads/1/3/0/5/130540472/3356509.pdfIn PDF document text
    • https://wupivodu.weebly.com/uploads/1/3/0/3/130323555/ef180a6d8d516e.pdfIn PDF document text
    • http://parsim.online/uploads/2020/01/27/8461668.pdfIn PDF document text
    • https://buveveludik.weebly.com/uploads/1/3/0/2/130291874/1245752.pdfIn PDF document text
    • http://pelejige.tsobb.icu/uploads/2020/01/29/3cc95b430e442.pdfIn PDF document text
    • http://bassittdesigns.com/uploads/1/3/0/6/130639062/130639062.html#go+math+grade+5+practice+book+answer+key+chapter+11In 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_off000010cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10CF 7900 bytes
SHA-256: 5656503a1ffce762cb313a3088f11d758353f472d8c64248eaa5cd09ddd9b30e
font_01_sfnt_off00006028.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6028 16036 bytes
SHA-256: 779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63

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