Malicious PDF — malware analysis report

Static analysis result for SHA-256 7751b07142a82545…

MALICIOUS

PDF

37.0 KB Authoring application: Solid Converter PDF
MD5: a1854d7ccee1219486e67a0bc33c0c1e SHA-1: f6e67b7af796720e485b247f792af4907a4ca47d SHA-256: 7751b07142a825451c3f87272a47168eed4e00d7b72bfcb01cf8e9385b7e5b97
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded external links, a technique often used for SEO spam or to direct users to malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent. The document body, though partially corrupted, suggests a lure related to document editing, which is a common tactic for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://nicolitulk.com.au/uploads/1/3/0/6/130621846/genivedatevom_kefawelesepuno_pivemaxusawaz_midebe.pdf
    • http://iledetanhai.com/uploads/1/3/0/6/130621283/1607500.pdf
    • http://lagniappewithahook.com/uploads/1/3/0/5/130550756/nugixotonavapolux.pdf
    • http://laketownship.info/uploads/1/3/0/9/130969973/ff68c5eb42e0.pdf
    • http://mail.amboy.net/uploads/1/3/0/4/130483322/jidunaga_woguzebitovij.pdf
    • http://michelleislivingwell.com/uploads/1/3/0/5/130551179/7646602.pdf
    • http://myaffiliatepages.net/uploads/1/3/0/7/130776249/6214909.pdf
    • http://project-otaku.com/uploads/1/3/0/2/130289270/d7ba0c92f80c23a.pdf
    • http://sealavienj.com/uploads/1/3/0/6/130639221/vifalubak_xurela.pdf
    • http://innovativesportfans.net/uploads/1/3/0/5/130539758/6881370.pdf
    • http://tinytikibar.com/uploads/1/3/0/7/130739373/japikawavilesa-gifibelaj.pdf
    • http://intuitioncamp.com/uploads/1/3/0/5/130542718/bepaw.pdf
    • http://www.thecheckupapp.com/uploads/1/3/0/7/130738730/jigizugi.pdf
    • http://williamsonautomotive.ca/uploads/1/3/0/7/130738837/ludexadusaluposi.pdf
    • http://ceramikerie.de/uploads/1/3/0/7/130740141/7417503.pdf
    • http://enclaveconnection.com/uploads/1/3/0/8/130813409/sunub.pdf
    • http://biking4life.org/uploads/1/3/0/5/130589163/54ab4815.pdf
    • http://london-office-6.pleasingfood.com/uploads/1/3/0/8/130874513/130874513.html#como+cambiar+el+tama%C3%B1o+de+letra+en+pdf
    • http://michelleislivingwell.com/uploads/1/3/0/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000335a.bin
b0de1f80557b707f9f2bb01336548b4e2ae1479ef38dc728e91a8b0add5bf187		 pdf-font-stream PDF embedded font (sfnt) at offset 0x335A 8616 bytes

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