Malicious PDF — malware analysis report

Static analysis result for SHA-256 7fd0b15fdcba1859…

MALICIOUS

PDF

40.8 KB Authoring application: Karbon
MD5: 11acfdb8f561c4006b815f40756cea14 SHA-1: 3e223093ee5ea441a48652715c7d2b974cd6d2e8 SHA-256: 7fd0b15fdcba1859aa5a075d2898d8108c75f9213867096ce6d286734c22a3a5
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic, suggesting a link farm or SEO spam campaign. The ML_NYX_PDF_MALICIOUS and CLAMAV_DETECTION heuristics confirm its malicious nature, with ClamAV identifying it as Pdf.Phishing.TtraffRobotInstall. While no scripts were extracted, the embedded URLs are the primary indicators of malicious activity, likely leading to further malicious content or phishing pages.

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://dveri-v-krasnodare.ru/uploads/2020/01/28/4436007.pdf
    • http://lbjconsult.com/uploads/1/3/0/3/130379611/putoxawif.pdf
    • http://modelsenden.com/uploads/1/3/0/5/130540284/b0ed93d.pdf
    • http://delegationband.com/uploads/1/3/0/2/130287883/kusutet.pdf
    • http://avenueapartments.gr/uploads/1/3/0/2/130289722/7732093b794675f.pdf
    • http://monanour.weebly.com/uploads/1/3/0/3/130323235/c8eacc2.pdf
    • http://makararara.tech/uploads/2020/01/29/3333095.pdf
    • http://northwesternsoccer.com/uploads/1/3/0/6/130620701/jumesupobid_novuger_vonipivus_ziwazir.pdf
    • https://religatulel.weebly.com/uploads/1/3/0/6/130604788/faee7e1.pdf
    • http://wafatelu.ekkohouse.ru/uploads/2020/01/27/5210582.pdf
    • http://rashbiprayers.com/uploads/1/3/0/5/130550966/527776.pdf
    • http://breastgroup.com/uploads/1/3/0/5/130539928/c3e853de77ebc9.pdf
    • http://bartolomeilaw.com/uploads/1/3/0/6/130604415/130604415.html#walmart+bed+sheets+twin+xl

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001311.bin
0b597e4c747d8756d77efe8d3c79126a9fd80e7d9a69b9482ebdd0345cfacc4b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1311 8548 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.