Malicious PDF — malware analysis report

Static analysis result for SHA-256 ecddc3cf06648f38…

MALICIOUS

PDF

39.1 KB Authoring application: GIMP
MD5: eec69715733ac5116f072feda214944a SHA-1: 06dd4f5a332e63e4727839495e36601da8a5826e SHA-256: ecddc3cf06648f387b92605e562d7da78b91eee13aee6f5a4dd7361c6b8aafc9
150 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded URLs pointing to external PDF documents. This behavior is indicative of a link farm or a distribution mechanism for further malicious content. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the ML classifier strongly suggest malicious intent. No scripts were extracted from this sample, limiting the ability to determine specific payload delivery or execution methods.

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 https://wufudokofagi.weebly.com/uploads/1/3/0/2/130272241/482ef96c9c606e.pdf
    • http://nozadoni.starcrane.ru/uploads/2020/01/27/8666664.pdf
    • http://vatabub.monohord.ru/uploads/2020/01/28/gasiv-forobanagovo.pdf
    • http://mycompanyapp.com.au/uploads/1/3/0/5/130588763/8402725.pdf
    • http://brainstormembroidery.com/uploads/1/3/0/4/130478663/lanugegokas_xotaruk_fexiruferuj_selokifid.pdf
    • http://powerofproton3.website/uploads/1/3/0/5/130540795/2cf69c64470b6.pdf
    • http://mindfulnessforteensaustin.com/uploads/1/3/0/6/130604129/pozafogavunif.pdf
    • http://racycostumes.com/uploads/1/3/0/6/130603895/kabewolesaku.pdf
    • http://swimpersonal.com/uploads/1/3/0/3/130313063/kijavitalis.pdf
    • http://crimxxieditions.weebly.com/uploads/1/3/0/4/130483429/dukalitujifepiwifu.pdf
    • http://ayurvedicprinciples.com/uploads/1/3/0/4/130478882/salapuja-muwotobobanu-giguxupal.pdf
    • http://arcadiagardensllclandscapinganddesign.com/uploads/1/3/0/5/130590399/130590399.html#restaurants+budapest+guide+michelin

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001393.bin
b61c28e66cc5ed845e002b50aae179fd41fae6ed2a5b8c7be3d9378d08cb820b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1393 9308 bytes

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