Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d4879226cacd371…

MALICIOUS

PDF

38.7 KB Authoring application: pstoedit
MD5: fa614f20f9bfeb5dc3dac4ae7eefc254 SHA-1: 2cca983adcb1afe1da53232f0721cba617eced2d SHA-256: 0d4879226cacd371007dce4c02426c70cd51bb506b5edc321d95d951f02a6c7b
192 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1539 Steal or Forge Credentials

This PDF file contains a large number of embedded external links, characteristic of a link farm used to distribute malicious content. The heuristic 'SE_MFA_LURE' indicates the document is designed to harvest credentials by requesting multi-factor authentication details. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further confirms its malicious phishing nature.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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
  • MFA / one-time-code harvesting lure high SE_MFA_LURE
    Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
  • 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://nerdbabies.com/uploads/1/3/0/4/130490833/29e9dd.pdf
    • http://uktvspainuk.com/uploads/1/3/0/7/130739520/5a895e.pdf
    • http://mingbridgetrading.com/uploads/1/3/0/6/130639162/mevajivoxexis.pdf
    • http://paydaylendinginvestigation.com/uploads/1/3/0/7/130738921/98e5ce74ef4d0e2.pdf
    • http://bunnystravel.com/uploads/1/3/0/5/130588370/lajinu.pdf
    • http://smpweddingandeventproductions.net/uploads/1/3/0/8/130813134/4055790.pdf
    • http://www.thefrigidnorth.com/uploads/1/3/0/7/130775510/goxarenamo.pdf
    • http://conjecturebooks.org/uploads/1/3/0/2/130271067/4317505.pdf
    • http://lauralepre.com/uploads/1/3/0/6/130604258/252711af.pdf
    • http://perfilelearning.net/uploads/1/3/0/3/130379173/498a5a8c.pdf
    • http://mail.douggs.com/uploads/1/3/0/6/130639133/356512601df2.pdf
    • http://davidmarquesibanez.com/uploads/1/3/0/5/130589318/130589318.html#aadhar+card+name+correction+update+online

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004114.bin
ffe37d774ad2c03ba635bd1fb3c89456d407997ea494b6c7add02876b4490e6a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4114 7800 bytes

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