Malicious PDF — malware analysis report

Static analysis result for SHA-256 8b4d0af692912650…

MALICIOUS

PDF

52.3 KB Authoring application: QPDF
MD5: 289a48163f3fb543c7c7cb60c586c48c SHA-1: 408f285267dc1d2abac8fb08e9107fe0ee1b0bae SHA-256: 8b4d0af692912650aba5f322085bf637e592bfa44f089c017a16ea3ed6b1f02b
130 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many of which point to other PDF files, suggesting a link farm for SEO or malicious redirection. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the 'SE_INVOICE_LURE' heuristic indicate a phishing or malicious traffic generation attempt. The embedded URLs are likely used to redirect the user to malicious content or further phishing pages.

Heuristics 4

  • 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
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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://missionepossibilehk.com/uploads/1/3/0/4/130477702/2435530.pdf
    • http://corningfishandgame.org/uploads/1/3/0/5/130588659/7865756.pdf
    • http://dougzanderart.com/uploads/1/3/0/5/130539660/fawened-zulosotefuv-dezagudemowi-vikinofa.pdf
    • http://bandito.agency/uploads/1/3/0/5/130589401/runaju.pdf
    • http://ruj.kuhni-msc11.icu/uploads/2020/01/28/pizusoxulo.pdf
    • http://zivatove.cityglush18.icu/uploads/2020/01/28/nanama.pdf
    • http://queyroi.com/uploads/1/3/0/6/130604516/sutigonudo-ruden.pdf
    • http://theparksphysie.com/uploads/1/3/0/2/130271250/2f9759454e3367.pdf
    • http://nutricionbasadaentrofologia.com/uploads/1/3/0/6/130621272/zivuxufafanamivum.pdf
    • http://bejustalittlebetter.com/uploads/1/3/0/5/130550890/130550890.html#accounts+payable+process+in+sap

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000012b4.bin
33bcd4e80f2865993db4f3457128149e86cfb8727c28da4caf1c515c7bf4dac2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12B4 8624 bytes

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