Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7f48de5c5f1de40…

MALICIOUS

PDF

33.2 KB Authoring application: pdf-parser
MD5: d12cc21785f024562ff31bc4fabb53a0 SHA-1: ba6a472a56464881196092b4ca469d688d7c1346 SHA-256: e7f48de5c5f1de4047ba1632b08f12736915fae1896dc19a6f33d960c93f64f1
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs pointing to external PDF files, a technique often used for SEO manipulation or to distribute further malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or malware distribution via these links. No scripts were extracted, limiting the analysis of direct execution capabilities.

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://sunrayvapors.com/uploads/1/3/0/7/130740264/e9785b23e6dd.pdf
    • http://tranresources.org/uploads/1/3/0/2/130272330/tubuwule.pdf
    • http://pinkjewelers.net/uploads/1/3/0/2/130287243/deratorotifi_xekewekabusupu_nuloxadir.pdf
    • http://www.diegojones.com/uploads/1/3/0/9/130969992/1c160.pdf
    • http://nachomamasbedandsnack.com/uploads/1/3/0/8/130813953/591616.pdf
    • http://ugsims.com/uploads/1/3/0/5/130546434/bafixaza-rojavibow-setawikinune.pdf
    • http://cpanel.blackdogtimber.co.uk/uploads/1/3/0/7/130739141/2589533.pdf
    • http://darcyatyourservice.com/uploads/1/3/0/2/130287929/gapikaxir.pdf
    • http://roryryanarchitects.com/uploads/1/3/0/3/130313148/7549015.pdf
    • http://dronkadiscountstore.com/uploads/1/3/0/7/130776693/7445771.pdf
    • http://www.sorridimi.com/uploads/1/3/0/7/130775605/06a0cf278cfaa.pdf
    • http://www.lilaccatfashions.com/uploads/1/3/0/6/130605015/130605015.html#effects+of+unemployment+in+kenyan+economy

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002acd.bin
28d33d0c9cd75cfa06b3d0915ce933a40da84bd1c54eb7ebca7f43f6754cb486		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2ACD 7884 bytes

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