Malicious PDF — malware analysis report

Static analysis result for SHA-256 9a4690b843f66184…

MALICIOUS

PDF

59.7 KB Authoring application: Mobipocket Creator
MD5: 31a9fc3028b72c23de17caf4aba1a631 SHA-1: e5c5b870c0ca28904ac92f642ced32df949be283 SHA-256: 9a4690b843f661840d3ce5d01af22778a1bf2c33c1646a28cd8fbc00ebfa40fa
150 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF file contains a large number of embedded URLs pointing to external PDF documents. This behavior is indicative of a link farm or a phishing campaign designed to redirect users to malicious content. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports the phishing and redirection nature of this file.

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://formacion-psicosocial.com/uploads/2020/01/29/6150f2e0.pdf
    • http://mammoth24.com/uploads/2020/01/27/4467899.pdf
    • http://compt-nickel.com/uploads/2020/01/28/rarixeno.pdf
    • http://sijigale.rentaprice.ru/uploads/2020/01/27/pazuza.pdf
    • http://bik.grandkuhni.ru/uploads/2020/01/28/pijowu.pdf
    • http://pugubuzi.e-meter.ru/uploads/2020/01/27/rawabuwovelup_tojamiridizami.pdf
    • http://mumak.teldiuxmexico.com/uploads/2020/01/27/7932645.pdf
    • http://malemidlifecrisis.org/uploads/1/3/0/4/130483703/fejuzigadaz_pulepor_lewakufabidozi_sozutitevorul.pdf
    • http://kugujuz.fodbol7.com/uploads/2020/01/29/7484531.pdf
    • http://mufusir.vipiski-besplatno43.icu/uploads/2020/01/28/kejugires.pdf
    • http://kirbyjett.com/uploads/1/3/0/4/130488542/e9dc94.pdf
    • http://amicabletrust.org/uploads/1/3/0/6/130620348/babufupiduzuj.pdf
    • https://vokavoge.weebly.com/uploads/1/3/0/2/130289288/fanelisatuninalilawa.pdf
    • http://bolaxekika.minus11kg.ru/uploads/2020/01/28/c3df3330e0.pdf
    • https://morarafaf.weebly.com/uploads/1/3/0/5/130590224/5375567.pdf
    • http://yupikuity.com/uploads/1/3/0/6/130621412/130621412.html#dans+l+attente+d+une+r%C3%A9ponse+favorable

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001570.bin
71e396b79319651eacb3891bea3de9c4e93d8e660b1e183810ffea3fb4fabe26		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1570 10188 bytes

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