Malicious PDF — malware analysis report

Static analysis result for SHA-256 a0fbbb412bf442ea…

MALICIOUS

PDF

33.5 KB Authoring application: Poppler-utils First seen: 2021-09-13
MD5: 5fec2ab8c2ce34a3d07a62d02a8b274e SHA-1: 8f9e320c745a052bce35db9435717837a29d887e SHA-256: a0fbbb412bf442ea23eb5f886d93faa36e052326edb812db71f8b70bb5450e6c
152 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs pointing to external PDF files hosted on Weebly, a technique often used for SEO spam or to distribute malicious content. ClamAV detected this file as 'Pdf.Phishing.TtraffRobotInstall-7605656-0', indicating a phishing or traffic redirection intent. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to redirect the user to potentially malicious content.

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 https://kitipavi.weebly.com/uploads/1/3/0/4/130478244/1021439.pdf In PDF document text
    • https://setererelu.weebly.com/uploads/1/3/0/4/130476372/xamirikipojakebedusu.pdfIn PDF document text
    • https://luvaxiduw.weebly.com/uploads/1/3/0/3/130313179/1583cac582283.pdfIn PDF document text
    • https://buvebodobude.weebly.com/uploads/1/3/0/4/130483479/kalaluvomalij.pdfIn PDF document text
    • https://jufefevamagumi.weebly.com/uploads/1/3/0/2/130288401/a41516c7.pdfIn PDF document text
    • https://lokobudimitijut.weebly.com/uploads/1/3/0/4/130483385/5421396.pdfIn PDF document text
    • https://tinarexeg.weebly.com/uploads/1/3/0/2/130272936/130272936.html#non+defining+relative+clauses+exercises+c1In PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000010a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10A0 7828 bytes
SHA-256: 5a1a26ec8f0fbe0abfef2da0643239c2adfdbce3bd9de5e567f290489bda7fa2

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