Malicious PDF — malware analysis report

Static analysis result for SHA-256 4a9d84cdc05d3fb0…

MALICIOUS

PDF

37.9 KB Authoring application: Scribus
MD5: be339c15f72ebe245a8eb87a2ede115e SHA-1: 6f5a09b61329ddb501106a2bd14729fe9155080e SHA-256: 4a9d84cdc05d3fb0018627de6817bb175c7ec98b41ffdb481db1c3849375698f
150 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links to other PDF files, indicating a link farm designed to distribute malicious content. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the ML classifier's high confidence score further support its malicious nature. The document body itself contains obfuscated text and URLs, reinforcing the phishing and malicious download attempt.

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://kepler-associates.com/uploads/1/3/0/5/130540554/vepobamalol-timopuluw.pdf
    • http://alexabowman.com/uploads/1/3/0/6/130604833/bopelebo.pdf
    • http://xateditif.mega-blog7.ru/uploads/2020/01/27/zugafob.pdf
    • https://latakegupus.weebly.com/uploads/1/3/0/5/130550931/6384480.pdf
    • http://palmsecurityservices.com/uploads/1/3/0/4/130476203/b53991f3d5e6e0.pdf
    • http://ruxove.vipdating.icu/uploads/2020/01/29/9512803.pdf
    • http://mysoulsingsstudio.org/uploads/1/3/0/4/130488121/67419.pdf
    • https://matuwabinuwew.weebly.com/uploads/1/3/0/5/130550800/6efb4d36.pdf
    • http://madxllc.com/uploads/1/3/0/6/130604561/dofiwa-votoloxakok-bujovezabawijo.pdf
    • http://nuvisionconstructionservices.com/uploads/1/3/0/6/130604372/2756570.pdf
    • http://novinimodu.xeql.pw/uploads/2020/01/28/sojoxirajejo.pdf
    • http://thevoodooboneladyvoodooshop.com/uploads/1/3/0/5/130588839/ce507ff9eddec70.pdf
    • http://fev.meschersky.com/uploads/2020/01/27/madiwofe_zopaponisemuli_wimivufetuzi.pdf
    • http://stokesed508webpage.com/uploads/1/3/0/6/130639337/130639337.html#animals+esl+worksheet+pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000139d.bin
f7fad3538d58dc15a559f2312de08202ed05e6f53f1ffde321f7018b015b793f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x139D 8200 bytes

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