Malicious PDF — malware analysis report

Static analysis result for SHA-256 09b056de99247a95…

MALICIOUS

PDF

34.3 KB Authoring application: LibreOffice Draw
MD5: c19b31bea40fd9f6fe518dcce1b8f0e2 SHA-1: 354cebc4b15e0fb954dca3c161e30f4f64ead118 SHA-256: 09b056de99247a956bb45b1db92e9f97f7df517fbfd911100b2af626dfabf3f8
134 Risk Score

Malware Insights

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

The PDF contains embedded links that point to external URLs, identified as malicious by heuristics. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' strongly suggests a phishing or malicious content delivery purpose. The document body, though heavily obfuscated, contains references to URLs that are likely used to host or redirect to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

Heuristics 4

  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://cleaningservicesresidentialcommercial.com/uploads/1/3/0/5/130588395/bukumulaga.pdf
    • http://airguardian3.com/uploads/1/3/0/5/130590710/8382324.pdf
    • http://urbanrips.com/uploads/1/3/0/6/130622041/wemamite-bagilokugelu-jopaduse.pdf
    • http://nursingarmpillow.com/uploads/1/3/0/6/130605186/130605186.html#agbebolo+lyrics+by+celestine+donkor

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000011e0.bin
1956e4d7939cebb09a3a92b39033fe2f606362587dffd99db9ae70afdca1a6cd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11E0 8760 bytes

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