Malicious PDF — malware analysis report

Static analysis result for SHA-256 f3bbabd6cfa04802…

MALICIOUS

PDF

122.2 KB Authoring application: LibreOffice
MD5: efd3a0f1a96bab0052ac6edcf24116bd SHA-1: 9887d6f4c0a5ba2afdf2aedce1aebfd007527a0e SHA-256: f3bbabd6cfa0480274fe897d112c4ae370b8eb62a78d9f14f5e09f149c124845
150 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, as indicated by the PDF_SEO_LINK_FARM heuristic. The ClamAV detection and ML classifier also strongly suggest malicious intent. The embedded URLs likely lead to further malicious content, such as other PDFs or phishing pages, designed to deceive the user.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9979

Heuristics 3

  • 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.
  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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://beatbunkr.com/uploads/1/3/0/6/130621045/takematuwaketa.pdf
    • http://nebraskatowshow.com/uploads/1/3/0/2/130274355/49540c3a9d5f83.pdf
    • http://mrjohnmiddleton.com/uploads/1/3/0/2/130271259/5a835c3.pdf
    • http://mooretre.com/uploads/1/3/0/6/130639867/livirojovenolo.pdf
    • http://barringtonbooks.weebly.com/uploads/1/3/0/5/130588789/lotosisivajupak.pdf
    • http://maikesmarvels.net/uploads/1/3/0/5/130590664/6478818.pdf
    • http://electmorthland.com/uploads/1/3/0/7/130740065/6579693.pdf
    • http://mycccamp.com/uploads/1/3/0/5/130590051/1656938.pdf
    • https://betivaxo.weebly.com/uploads/1/3/0/2/130270804/saxupotezi_nugutafepodu.pdf
    • http://newstylemarket.com/uploads/1/3/0/2/130272080/130272080.html#michael+boyle+functional+training+for+sports+pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001394.bin
59ee0bf87fe0e20b9a6cb904f985c7fd3f7cf94f1bd71ea4b405af67bded59eb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1394 9432 bytes

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