Malicious PDF — malware analysis report

Static analysis result for SHA-256 d8d3f0f87e0419f8…

MALICIOUS

PDF

35.3 KB Authoring application: PDFBox First seen: 2020-09-24
MD5: 01b239b49d8d8cdb88bde480b6c0baef SHA-1: 230ae9f1eb08837b0a5477dac675c26ab66d632e SHA-256: d8d3f0f87e0419f815a9ce8b31ec8b1851671ee3048c26f1bd4db65ce9f1f995
152 Risk Score

Malware Insights

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

The PDF was flagged by multiple heuristics, including a critical alert for a link farm and a machine learning model indicating high maliciousness. ClamAV also identified it as phishing malware. The document contains numerous embedded URLs pointing to external PDF files, suggesting a phishing or malware distribution scheme. No scripts were extracted from this sample.

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://monto.com.mx/uploads/1/3/0/6/130621307/7399746.pdf In PDF document text
    • http://ypsitrucky.com/uploads/1/3/0/3/130379548/nepeziso_padixasawadana.pdfIn PDF document text
    • http://formationalurimmobilier.com/uploads/1/3/0/6/130604049/dupiwilajizerot.pdfIn PDF document text
    • http://nckphotography.com/uploads/1/3/0/5/130551405/13eaa99b5e.pdfIn PDF document text
    • http://waffledaze.com/uploads/1/3/0/4/130476688/9b70b5a8e1eafe8.pdfIn PDF document text
    • http://carolinevanthoff.com/uploads/1/3/0/5/130589070/19a546b.pdfIn PDF document text
    • http://10thirtychoir.org/uploads/1/3/0/2/130289283/8008233.pdfIn PDF document text
    • http://mrmacbiblebook2.com/uploads/1/3/0/6/130621020/130621020.html#miya+bhai+song+video++mp4In PDF document text
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn 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_off0000112c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x112C 8304 bytes
SHA-256: ee5b321955b8d74e48f2b7e012b09c278342503b009b94c711f093fc70827489
font_01_sfnt_off00004709.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4709 6728 bytes
SHA-256: 5278024270de67705d3a5034a26ce2f5e1d9e53f50705cc770b2190155f81e7b

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