Malicious PDF — malware analysis report

Static analysis result for SHA-256 223f6d83b6411dcf…

MALICIOUS

PDF

97.8 KB Authoring application: Adobe PDF Library 9.0
MD5: 35e55c7ab796229dc07b88fa79e35017 SHA-1: 606bb5ea4d414974683294e5fb9c637adffb478c SHA-256: 223f6d83b6411dcfc325e95bfca57668cd4c3592cee98f4eb1f4952eb54de4e0
150 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded URLs, characteristic of a link farm designed to direct users to malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent. The primary attack pattern involves luring users to download further malicious PDFs through these links.

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 https://zoxavabagabop.weebly.com/uploads/1/3/0/5/130551258/5261203.pdf
    • http://vitallifehypnosis.com/uploads/1/3/0/4/130489159/faselajekowivoligiti.pdf
    • http://ruppsrunts.com/uploads/1/3/0/6/130604862/dedolewinexavozer.pdf
    • http://remont-v-kvartir.ru/uploads/2020/01/28/49aed2f7d5a2b40.pdf
    • http://jarakaxu.xofls.xyz/uploads/2020/01/27/fepibaw_lapaba.pdf
    • http://aperfectday.rocks/uploads/1/3/0/5/130588654/mubaxi-mijoriwirivo-tuwavorenejivi.pdf
    • https://webutebu.weebly.com/uploads/1/3/0/6/130605475/7737265.pdf
    • http://webusi.remont136.ru/uploads/2020/01/27/dd17309a.pdf
    • http://fusie-awel.nl/uploads/1/3/0/4/130483649/guwowuveviwa.pdf
    • https://kisafakawepa.weebly.com/uploads/1/3/0/4/130435582/sewimerenajaxonegu.pdf
    • http://rejafutedi.oldi-dns-nix.info/uploads/2020/01/28/kixetiga.pdf
    • http://the-hemp-life.com/uploads/1/3/0/6/130621141/d84e20ec56bf.pdf
    • http://myrocketflow.com/uploads/1/3/0/6/130639774/4267902.pdf
    • http://delobul.storefb.xyz/uploads/2020/01/27/jukodoma.pdf
    • http://bodyworkbybarb.com/uploads/1/3/0/6/130639347/130639347.html#wef+travel+and+tourism+competitiveness+report+2019

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000152c.bin
9d82c3a3f1fa3a04af9cc59e074b43d6800d90db06874d3158e06b8fdaedbef4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x152C 8748 bytes

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