Malicious PDF — malware analysis report

Static analysis result for SHA-256 39f3cb7e1e91ffba…

MALICIOUS

PDF

39.3 KB Authoring application: Scribus
MD5: 1edde496cd99a1b5181bbf45366ce731 SHA-1: bf964431a04a352faa9b9e13a72fb344db5aad37 SHA-256: 39f3cb7e1e91ffba47083f8e0cce3f02e4e8080c5836eb7df664d89bf04b28a8
150 Risk Score

Malware Insights

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

The PDF contains a large number of external links, identified as a link farm, directing to various domains. The heuristic 'PDF_SEO_LINK_FARM' and ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' strongly indicate a malicious intent, likely for phishing or malware distribution. The embedded URLs are the primary indicators of compromise.

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://www.brittc0llins.com/uploads/1/3/0/2/130291975/8195097.pdf
    • http://kharmarecords.com/uploads/1/3/0/6/130603932/923f8265ad.pdf
    • http://guerssports.com/uploads/1/3/0/6/130620885/8308194.pdf
    • http://www.halcoinsurance.com/uploads/1/3/0/8/130874492/tinotavewedanaj.pdf
    • http://durhamescaperoom.com/uploads/1/3/0/6/130620665/506a143c9a4895.pdf
    • http://ms-j.org/uploads/1/3/0/5/130550928/liwowamug.pdf
    • http://terminal3.net/uploads/1/3/0/6/130604286/4535044.pdf
    • http://nelaalen.com/uploads/1/3/0/4/130489530/zajorubutarisoveweru.pdf
    • http://electxt.com/uploads/1/3/0/4/130483394/94e576a0fa59013.pdf
    • http://scottcarlic.com/uploads/1/3/0/5/130589444/77a3d12ccd.pdf
    • http://hostmaster.tristenmurray.com.au/uploads/1/3/0/6/130640039/fexapemi-pelubexobomipaw-dezutofe-madenudetoda.pdf
    • http://areacodehookup.com/uploads/1/3/0/8/130814562/filovutojekedif-ronabeg.pdf
    • http://orthovalue.com/uploads/1/3/0/4/130489090/481aca5fd07f0c.pdf
    • http://rosecorpconstruction.com/uploads/1/3/0/7/130775666/2279288.pdf
    • http://mothersmilkisbest.com/uploads/1/3/0/7/130775052/347c7f886d4cdf6.pdf
    • http://onlinewebcammodels.com/uploads/1/3/0/7/130776847/dda3f5e6e5caee.pdf
    • http://chicagohealthcareventures.com/uploads/1/3/0/7/130775361/53563.pdf
    • http://cluedetectivepuzzleagency.life/uploads/1/3/0/3/130313345/a4354.pdf
    • http://www.grophin.com/uploads/1/3/0/7/130775929/nutanerukojulotasiw.pdf
    • http://raphel.com/uploads/1/3/0/5/130589237/6fd815a3a0b89.pdf
    • http://cvillehomeimprovements.com/uploads/1/3/0/8/130813965/e7effb617440f4.pdf
    • http://aascapedesign.com/uploads/1/3/0/5/130546237/zolezovefovere-zuvemavi-bejenum.pdf
    • http://morsebrass1.com/uploads/1/3/0/6/130603913/d114cdef2a4b9.pdf
    • http://mechapocalypse.net/uploads/1/3/0/8/130813898/bedefedepirunin_favukijizujorar_xewijuwufo.pdf
    • http://humannaturefoundation.com/uploads/1/3/0/8/130814460/130814460.html#conjunctiva+unspecified+icd+10
    • http://rosecorpconstruction.com/uploads/1/3/0/7/130775666/2

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003528.bin
171e2d7bb2831eefc531ec6850a76ca0cf86e3bccbb0337e0bf77b1e28b655d3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3528 8212 bytes

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