Malicious PDF — malware analysis report

Static analysis result for SHA-256 178302a371c934a8…

MALICIOUS

PDF

41.0 KB Authoring application: Serif PagePlus
MD5: a05cd2ee150247e14169cdd5153d3e5b SHA-1: 0893d79623e4fea2d1bcfe3e244e907e426becbd SHA-256: 178302a371c934a8b80b4fbd0ea34da325336175d949e4d5b3040d8512d4927e
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a large number of embedded URLs pointing to external PDF files, as indicated by the PDF_SEO_LINK_FARM heuristic. This suggests a tactic to manipulate search engine results or distribute a large volume of content, potentially malicious. The ML classifier and ClamAV detection further support its malicious nature, classifying it as phishing-related malware.

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 https://meladiwo.weebly.com/uploads/1/3/0/4/130488964/bibomuxogukurux_luxotejup.pdf
    • http://xem.budpervym.ru/uploads/2020/01/28/gonexosiviper.pdf
    • http://primepizza.info/uploads/2020/01/28/0d01267b0640e3.pdf
    • http://muridut.remont-info.com/uploads/2020/01/29/waxegobefotozinejopo.pdf
    • http://beccasbling.net/uploads/1/3/0/2/130291463/03284074d92094.pdf
    • https://depudepigapajaw.weebly.com/uploads/1/3/0/3/130313106/zabirewubifob.pdf
    • http://zeza.meriphotographe.com/uploads/2020/01/28/gukiw.pdf
    • http://stpatsbinghamton.org/uploads/1/3/0/5/130588575/f2fa235c3c9b.pdf
    • http://catalinapools.net/uploads/1/3/0/5/130551153/2439810.pdf
    • http://keneni.speacetech.us/uploads/2020/01/28/8885602.pdf
    • https://mubobebebo.weebly.com/uploads/1/3/0/4/130436483/945c7c7c3b75.pdf
    • https://penogerodumuzav.weebly.com/uploads/1/3/0/2/130289411/f77e19bb340.pdf
    • http://pelobowuja.mypublicwifi.ru/uploads/2020/01/29/pimufugosugidek-fegatixaweji.pdf
    • http://weniguli.masterpechi.ru/uploads/2020/01/27/9846259.pdf
    • http://sdiupdates.com/uploads/1/3/0/5/130588452/5104875.pdf
    • http://somersetfoodtrail.org/uploads/1/3/0/4/130493248/a55bd66.pdf
    • https://noxoduteripox.weebly.com/uploads/1/3/0/5/130589320/d7c6d4efcf0ca.pdf
    • http://egwrtjetggg.xyz/uploads/2020/01/28/kojeginobamulezonezo.pdf
    • http://windsweptpoodles.com/uploads/1/3/0/5/130590464/balexisewa.pdf
    • http://jixejesa.serovatextile.ru/uploads/2020/01/27/wuvoxexek.pdf
    • http://proceedbydesign.com/uploads/1/3/0/6/130621555/130621555.html#comprension+lectora+4+primaria+anaya+pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000185a.bin
167967505823872367954f9265e95959a0000214be9ce11cf3775d70b3fd9100		 pdf-font-stream PDF embedded font (sfnt) at offset 0x185A 9716 bytes

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