Malicious PDF — malware analysis report

Static analysis result for SHA-256 615ded454deada79…

MALICIOUS

PDF

40.4 KB Authoring application: Inkscape
MD5: 69f62ad358bf66b04528fc1860461b11 SHA-1: d255bbbdf233b8d2cde6403c429f5c885d600874 SHA-256: 615ded454deada79be306e8293ac865dc2098e6d9dc1cb423b0ce1c373afaf74
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs pointing to external PDF files, a technique commonly used for SEO poisoning or to redirect users to malicious content. ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the ML classifier's high confidence score further support its malicious nature. The embedded URLs are the primary indicators of compromise, suggesting a phishing or redirection attack.

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://street-retail.com/uploads/2020/01/27/bufoki_nuxofopolere.pdf
    • http://samogon-74.ru/uploads/2020/01/28/xobesetirufa.pdf
    • http://fejujedam.nembutaldelivery.com/uploads/2020/01/27/tutopuludafixi.pdf
    • http://wami.tannothem.pro/uploads/2020/01/29/e0561ff59d.pdf
    • http://tofupuxo.mimonostore.com/uploads/2020/01/28/fuxidolujajaradig.pdf
    • http://jazurixe.prorealgames.com/uploads/2020/01/29/d88632.pdf
    • http://kgwritingservices.com/uploads/1/3/0/6/130603944/fujobunis.pdf
    • http://trytoberich.com/uploads/2020/01/27/jawadopirerubadebifi.pdf
    • https://dajofurivugaj.weebly.com/uploads/1/3/0/6/130603874/c5a5f56af20.pdf
    • http://tagik.beri-bolshe.com/uploads/2020/01/28/medusegisofubu.pdf
    • http://paypal-support-limitted.com/uploads/2020/01/27/pimawokixemuzozax.pdf
    • http://ram78.ru/uploads/2020/01/29/7ecb5ee4f.pdf
    • https://xuvezekezok.weebly.com/uploads/1/3/0/2/130289773/1682535.pdf
    • http://rig.alexupwork.com/uploads/2020/01/28/webuvo_pesodaxorariji.pdf
    • http://mudus.veteorets.com/uploads/2020/01/27/faxalesit-litavozigax.pdf
    • http://gamodexewe.murciaon.com/uploads/2020/01/27/042b6e6313c2.pdf
    • https://norijenalat.weebly.com/uploads/1/3/0/3/130313603/kuxotodefezoze.pdf
    • http://onlinebibelskole.info/uploads/1/3/0/4/130483114/130483114.html#lobsang+rampa+pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000015b0.bin
f17f35e3a64bcdceddbcd2cbaffc27a65ae22c6602505224ba5f1c44ae4eff09		 pdf-font-stream PDF embedded font (sfnt) at offset 0x15B0 9544 bytes

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