Malicious PDF — malware analysis report

Static analysis result for SHA-256 be7a08b92cfba6b4…

MALICIOUS

PDF

32.3 KB Authoring application: Soda PDF
MD5: ad8f6288edd88df2a665fc37bc5f61f5 SHA-1: 8dd93e4895b31ec408bd3923067727f78360f3fc SHA-256: be7a08b92cfba6b4d57550ba6ce16c63619f0e0653467f627f0c64386aa12c82
150 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded URLs pointing to external PDF documents, a technique commonly used for SEO poisoning or phishing. The ClamAV detection and ML classifier strongly indicate malicious intent. The document body, though heavily obfuscated, contains references to these URLs, reinforcing the attack pattern. The primary goal appears to be directing users to a network of suspicious websites.

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://mminstitutedsn.com/uploads/1/3/0/4/130490151/2089805.pdf
    • http://communicatewithyourcongregation.com/uploads/1/3/0/5/130540266/eab2575437c2.pdf
    • http://shopofficeglam.com/uploads/1/3/0/6/130620163/3066896.pdf
    • http://photo-sport-automobile.fr/uploads/1/3/0/4/130436244/44ed588544.pdf
    • http://brexitpartychichester.co.uk/uploads/1/3/0/6/130604222/koxelevukuxex-zomen-fadozavixovir-jaliwekatano.pdf
    • http://theminimalistcreator.com/uploads/1/3/0/5/130588246/nirobebowafo-xunakutotefu-jebizim-jamob.pdf
    • http://mmtaxandfinancial.com/uploads/1/3/0/8/130814297/tebaniromev.pdf
    • http://etherpark.com/uploads/1/3/0/8/130813778/miwiku_metefesagakoru_tupor.pdf
    • http://www.christine-simmons.com/uploads/1/3/0/4/130483389/49438fa5a035f6.pdf
    • http://christinawei.com/uploads/1/3/0/2/130271187/lowejokagewemepokoz.pdf
    • http://webdisk.redpantscoaching.com/uploads/1/3/0/2/130289235/dudak.pdf
    • http://eterpath.com/uploads/1/3/0/6/130621382/xeludebi.pdf
    • http://aryaninvestmentandhousing.com/uploads/1/3/0/4/130475973/130475973.html#ageratum+conyzoides+in+telugu

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000027e1.bin
86e6edba15ff4cbdcd2ab74df992a5dad079fb13a1c967c80a66dde897b401ea		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27E1 7208 bytes

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