Malicious PDF — malware analysis report

Static analysis result for SHA-256 10d03d241843f3b4…

MALICIOUS

PDF

55.4 KB Authoring application: LibreOffice
MD5: a761c54f6789a5c108ac02e9fd1706e9 SHA-1: 9bea5c52d29034bca804b08e736907cbf5c301e8 SHA-256: 10d03d241843f3b4e9b7490562679440f9a7a9e542a950898796a5ace4bde92a
152 Risk Score

Malware Insights

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

The PDF contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, suggesting a link farm or redirection strategy. ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0 and the ML classifier output further support malicious intent. The embedded URLs likely lead to malicious or phishing content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://potenc-man.space/uploads/1/3/0/2/130273896/ec284bd0.pdf
    • http://vtmountainlove.com/uploads/1/3/0/7/130740260/zorovavepixi.pdf
    • http://agedanddistilled.com/uploads/1/3/0/3/130379307/223c90.pdf
    • http://cfthomas.com/uploads/1/3/0/3/130323803/wopuro.pdf
    • http://webmail.onlinecreator.net/uploads/1/3/0/7/130776411/wegebavapulifoj.pdf
    • http://thepetsreport.com/uploads/1/3/0/8/130814711/ff5b5ed95107c.pdf
    • http://mnlifecoach.com/uploads/1/3/0/5/130588473/8e8c2c.pdf
    • http://newageoflight.com/uploads/1/3/0/7/130776114/f33ceb5ce1.pdf
    • http://www.spirit-care.ca/uploads/1/3/0/7/130775685/faxerisaxebifulaxofe.pdf
    • http://ancestryseekers.com/uploads/1/3/0/2/130274349/kadili.pdf
    • http://d5i81.slpny.com/uploads/1/3/0/5/130590698/130590698.html#what+does+aarp+medicare+supplement+cost
    • http://www.adobe.com/).Noto
    • http://www.google.com/get/noto/http://www.adobe.com/type/This
    • http://scripts.sil.org/OFLNoto

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000067c7.bin
b00dd4571e9332ae386e04d427ac46741a0c01238659a971a03f2e85035fdf80		 pdf-font-stream PDF embedded font (sfnt) at offset 0x67C7 6528 bytes
font_01_sfnt_off00007f88.bin
ca0cfd3495ff26255f432ceb6cf9aa01256d410d86fd9f788d8e88ccde8eabab		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7F88 9496 bytes

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