Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c05f3e6355ba0f8…

MALICIOUS

PDF

28.9 KB Authoring application: Scribus
MD5: faef8dc64f384f9a062c5042a47bfe28 SHA-1: fdccb4523435b9d116a061a9f69a60c098a7d492 SHA-256: 2c05f3e6355ba0f89ef0938d3f638f8778b8612ac8dfd6f22b7d10d45de978a0
150 Risk Score

Malware Insights

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

This PDF file was flagged by ClamAV as Pdf.Phishing.TtraffRobotInstall-7605656-0 and a machine learning classifier with high confidence. The primary malicious behavior observed is a large number of embedded external links, likely intended to redirect users to phishing or malware distribution sites. The document body contains garbled text and references to 'Scribus Coach yourself to success pdf download', suggesting a lure to entice users to click the links.

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://quant-insights.com/uploads/1/3/0/5/130589077/5ab2276f1c05.pdf
    • http://kelseyheeterwgu.com/uploads/1/3/0/5/130538833/1423348.pdf
    • http://ramonakriggins.net/uploads/1/3/0/5/130589275/rokuzolakojojaw-sisufap-gotarepelom-wezusidisolex.pdf
    • http://lilayogashala.com/uploads/1/3/0/6/130621895/limulufaderomuwigib.pdf
    • https://sesezirit.weebly.com/uploads/1/3/0/5/130589279/rudalusarosurifixo.pdf
    • http://bookmeup.website/uploads/2020/01/29/xeralewukewupud_ruwuxukipudef_bobeso.pdf
    • http://gawewo.loomex.ru/uploads/2020/01/28/repoziwusupid_suzevaf_josarubezewo.pdf
    • https://voduboke.weebly.com/uploads/1/3/0/2/130274338/nukofi.pdf
    • http://zavevasu.opr4.icu/uploads/2020/01/27/vomurejufemoxiwep.pdf
    • http://scrgrp.com/uploads/1/3/0/2/130271250/3870327.pdf
    • http://bizelirobo.audiostart32.icu/uploads/2020/01/28/57950911f731.pdf
    • http://rumelil.ewrty.xyz/uploads/2020/01/28/3273902.pdf
    • http://kellykeegs.com/uploads/1/3/0/6/130604441/7110416.pdf
    • http://kingwoodllc.com/uploads/1/3/0/6/130603809/siviwijaguzikofum.pdf
    • http://theleawoodfamilydentist.com/uploads/1/3/0/6/130603823/130603823.html#coach+yourself+to+success+pdf+download

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001352.bin
4d88a5939e0c70220ea3b50300a46d4f9e3c6f3b714504211fae6fb2006fba15		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1352 6644 bytes

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