Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d2627d51b2a2491…

MALICIOUS

PDF

41.1 KB Authoring application: PDFedit First seen: 2020-09-24
MD5: d1db383d3c1bdae2cb4a14c510825cfc SHA-1: 0cf3e4b76740dc2814231d0a2093ceca26bfd70d SHA-256: 2d2627d51b2a2491face85eca2d07dd8a422604bc6455393b253601b32d42ec8
160 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many of which are disguised as download buttons. The ClamAV detection and ML classifier strongly indicate malicious intent, specifically a phishing lure. The embedded URLs point to various PDF files, suggesting a link farm designed to redirect users to potentially malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://castellanoart.net/uploads/1/3/0/5/130550752/1c456.pdf In PDF document text
    • http://aninconvenientcommute.com/uploads/1/3/0/4/130435807/2840980.pdfIn PDF document text
    • http://mesquitesitting.com/uploads/1/3/0/6/130620626/87429d996.pdfIn PDF document text
    • http://theindoorhockeyleague.com/uploads/1/3/0/3/130323232/togedotefizi.pdfIn PDF document text
    • http://nullaginecrc.net/uploads/1/3/0/2/130270963/5f7eca59.pdfIn PDF document text
    • http://wibom.dk/uploads/1/3/0/6/130603841/simirasetij-suged.pdfIn PDF document text
    • http://chewoncakes.com/uploads/1/3/0/4/130488294/130488294.html#autograph+movie+hd+video+song+freeIn PDF document text
    • http://www.adobe.com/).NotoIn PDF document text
    • http://www.google.com/get/noto/http://www.adobe.com/type/ThisIn PDF document text
    • http://scripts.sil.org/OFLNotoIn PDF document text

Related samples 4

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_off00001161.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1161 9860 bytes
SHA-256: 8016379d421f499305e25526b70e068feaf06770f3cb0dc8903dd0547b9f4767
font_01_sfnt_off00005a7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A7D 6472 bytes
SHA-256: 3185a149154b42fc0f0995d8d75acfacb8881b89e376020fd42fc37495f8b4c8

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