Malicious PDF — malware analysis report

Static analysis result for SHA-256 fea609e7e5691bae…

MALICIOUS

PDF

59.4 KB Authoring application: PDFedit
MD5: 39bc833d9f10dc7bd974241012da52dd SHA-1: dee03693b0924864de196bb5263a8813135a883a SHA-256: fea609e7e5691baea03a1ed9d07fbe774a00d13cd479f98491e2cf19c6e265a6
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded URLs pointing to other PDF files, a technique often used for SEO spam or to distribute malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent. The document body, though heavily corrupted, contains fragments of URLs and text related to diet plans, suggesting a lure to external content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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.chantdesvoyelles.fr/uploads/1/3/0/7/130776525/rureguxizig-lanid.pdf
    • http://myadnteam.com/uploads/1/3/0/6/130639517/pogenanuvajuw.pdf
    • http://baysideoakland.com/uploads/1/3/0/5/130547116/tafajegexizamir.pdf
    • http://newspin.net/uploads/1/3/0/6/130620372/kakigerezok.pdf
    • http://realmswithin.com/uploads/1/3/0/6/130605010/mozimizonawezoj_narogijesalep_gijufaxo.pdf
    • http://truegrit.org/uploads/1/3/0/7/130739223/wirekavapitirozunozi.pdf
    • http://nickgiamarino.com/uploads/1/3/0/2/130271131/tanibulopufuki_xaxajalup_xatuzeru.pdf
    • http://myhypecheck.com/uploads/1/3/0/6/130603756/regit.pdf
    • http://www.geosynoptics.ca/uploads/1/3/0/7/130738578/fazupama.pdf
    • http://www.samaytrm.com/uploads/1/3/0/5/130589385/5709710.pdf
    • http://johnvthephotographer.online/uploads/1/3/0/6/130603756/bobunizunoj.pdf
    • http://fisbanga.com/uploads/1/3/0/9/130969712/wigegekijotofirosowo.pdf
    • http://bridginghand.org/uploads/1/3/0/7/130739268/mujutufaf-nexofi-nejonozu.pdf
    • http://oxhxo.net/uploads/1/3/0/6/130620184/2798c802b.pdf
    • http://host90.carmichaelnl.com/uploads/1/3/0/7/130738924/130738924.html#keto+diet+plan+for+indian+vegetarians+without+eggs

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001433.bin
48b85530648f17602f3251b3bcfdc2ea27c817dca5876875019146bb593696c3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1433 8768 bytes

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