Malicious PDF — malware analysis report

Static analysis result for SHA-256 67ca5159bcaaa257…

MALICIOUS

PDF

49.3 KB Authoring application: OpenOffice.org
MD5: e5ba6fa89240aa954fcc8633adec9687 SHA-1: 68395f09b0fde539909aeb4d3ea73c4410412e35 SHA-256: 67ca5159bcaaa257a0a21c7d73a84970b039432dd805d7519630c8ba7ffd82ca
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a large number of embedded links to external PDF files, a technique often used for SEO manipulation or to redirect users to malicious content. ClamAV identified this as Pdf.Phishing.TtraffRobotInstall, indicating a phishing or traffic redirection scheme. The embedded URLs likely serve as the initial stage of a multi-stage attack, potentially leading to further malware downloads or phishing pages.

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 http://lwlegalservices.com/uploads/1/3/0/4/130476378/gewilusokedatamozu.pdf
    • http://batonrougenaturalhairexpo.com/uploads/1/3/0/5/130551126/3958874.pdf
    • http://fibaponag.02shopppp.fun/uploads/2020/01/28/cbc789300ea.pdf
    • http://sparxelectricalcontractors.com/uploads/1/3/0/5/130539726/sakawad-govixefakem.pdf
    • http://minigypsyhorse.com/uploads/1/3/0/2/130291493/ruvaber.pdf
    • http://vuxidegene.pavlogradgallery.ru/uploads/2020/01/27/7362255.pdf
    • http://eaglehealthinsurance.com/uploads/1/3/0/3/130379150/kuvaxisutadalaw_jivikivibuvatix.pdf
    • http://xodi.progress-pay.ru/uploads/2020/01/27/gerotum.pdf
    • http://metroprointeriors.com/uploads/1/3/0/6/130605440/4914902.pdf
    • http://milestoneco.net/uploads/1/3/0/5/130539338/sujenututag.pdf
    • http://davidmarquesibanez.com/uploads/1/3/0/3/130324119/130324119.html#hotel+sales+interview+questions+and+answers

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000012b2.bin
7051c683853ffa925bfd861f20ccdc6ca817ff35054a705f57267cb37b25ea3c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12B2 8180 bytes

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