Malicious PDF — malware analysis report

Static analysis result for SHA-256 235711d150c32598…

MALICIOUS

PDF

33.9 KB Authoring application: pstoedit
MD5: 7c8d224b40e0f9b8d4b533e49251217c SHA-1: 51a86c2968d0e2ebb1d1434699ba714d0f2d85ed SHA-256: 235711d150c3259834fb33e547caa8b271ac9ef3007cc1babe1b6d1da7edbec6
120 Risk Score

Malware Insights

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

The PDF file exhibits characteristics of a link farm, with numerous embedded URLs pointing to external PDF files. This technique is commonly used to artificially inflate search engine rankings or to distribute malicious content. The ClamAV detection of 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or malicious redirection intent. No scripts were extracted, limiting the analysis of direct payload execution.

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://lokuxumuvado.weebly.com/uploads/1/3/0/2/130288924/lizuxiregidaz.pdf
    • http://dkto.pro/uploads/2020/01/27/2548663.pdf
    • http://xpressivelife.com/uploads/1/3/0/6/130621120/tipedadidamow-kajawij.pdf
    • https://serafubok.weebly.com/uploads/1/3/0/2/130291365/18bccfadf13.pdf
    • http://dog.rutv.fun/uploads/2020/01/29/5214308.pdf
    • http://veb.sos34.ru/uploads/2020/01/27/5ea114d0.pdf
    • http://namoduxumi.remstroi-metal.ru/uploads/2020/01/27/mujidivalupelu.pdf
    • http://beko.vera-72.ru/uploads/2020/01/27/1949370.pdf
    • https://minixita.weebly.com/uploads/1/3/0/3/130323219/jujabiridola.pdf
    • http://fastcashloansdirectly.com/uploads/2020/01/29/1929122.pdf
    • http://zowe.kvoma.ru/uploads/2020/01/27/4624280.pdf
    • http://moheal-moringa.com/uploads/1/3/0/5/130545382/1658479.pdf
    • https://wulelixinogep.weebly.com/uploads/1/3/0/2/130291724/e17f894.pdf
    • http://peve.my-blogonline.ru/uploads/2020/01/27/wifixofujad.pdf
    • https://tevuberujozoza.weebly.com/uploads/1/3/0/2/130288580/paxuluza.pdf
    • http://aarisbynum.com/uploads/1/3/0/4/130483830/majositiki-fajazed.pdf
    • https://nadinadifojuwi.weebly.com/uploads/1/3/0/2/130274371/bizubinasasidus_fogenegawob_pizumeb.pdf
    • http://wotusa.regula561.pro/uploads/2020/01/27/xoxawe.pdf
    • http://zoketo.privu.icu/uploads/2020/01/29/nunidex.pdf
    • http://itilan.ru/uploads/2020/01/27/7475043.pdf
    • http://amazingxstore.com/uploads/2020/01/27/vinutew.pdf
    • http://xenegurime.samokontrol.ru/uploads/2020/01/28/1253304.pdf
    • http://maternity-depot.net/uploads/1/3/0/5/130551464/xesopoge.pdf
    • http://bestbusinesshere.com/uploads/1/3/0/6/130621344/zuvomipalukanixuwil.pdf
    • http://absystemsllcscam.com/uploads/1/3/0/5/130551708/130551708.html#adding+and+subtracting+decimal+word
    • http://wotusa.re

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000160f.bin
c3a597858c53b2b0aa7b8c871667e4576fa56d32a4692bf5a2c7ebf7f9910c34		 pdf-font-stream PDF embedded font (sfnt) at offset 0x160F 6972 bytes

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