Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c6b5cc15c79e8d3…

MALICIOUS

PDF

32.6 KB Authoring application: Adobe PDF Library 9.0
MD5: 21062b1d4ab99ac6629e838398622f84 SHA-1: 9f23b6ca6840d24bbcdff59c19dda4a6318f21c2 SHA-256: 9c6b5cc15c79e8d38b1dfdbe368e679503367bd856a9ab9e213604e4ddc94c18
152 Risk Score

Malware Insights

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

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 payloads. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the ML classifier strongly indicate malicious intent. The embedded URLs are the primary IOCs, suggesting a campaign focused on redirecting users to potentially harmful content.

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://pazudujazaguzu.weebly.com/uploads/1/3/0/5/130588591/94addf.pdf
    • http://astralprojectioncoursewithjerrygross.com/uploads/1/3/0/2/130287313/4a8244e5cf.pdf
    • http://missionmobilizationjonasmuyima.org/uploads/1/3/0/2/130288507/a2b44c39bab2.pdf
    • https://jumaxered.weebly.com/uploads/1/3/0/5/130551920/fudonevago.pdf
    • http://epiccodingmusic.com/uploads/1/3/0/2/130289229/9c70016ec9d.pdf
    • http://rono.litecoin-red.com/uploads/2020/01/27/gigapimawesok.pdf
    • http://nikoge.salecheb.ru/uploads/2020/01/28/galakowepa-juremedavo-risafamotow-selafet.pdf
    • http://nibstarproductions.weebly.com/uploads/1/3/0/4/130476688/wimovunimeweguwe.pdf
    • http://ncsdactivities.com/uploads/1/3/0/5/130588425/waxoxafuvebagesavaj.pdf
    • http://a-listcbd.com/uploads/1/3/0/5/130551654/parokasuj-rumebobedaxisif-xajexebabebe.pdf
    • http://nabe.privat-market.ru/uploads/2020/01/27/80cea.pdf
    • http://depthstiny.com/uploads/1/3/0/5/130544446/pifivusumukedot.pdf
    • http://singletaryslogistics.com/uploads/1/3/0/2/130288682/dbaa70ef9.pdf
    • http://krediteka.ru/uploads/2020/01/27/a777f15192e6afe.pdf
    • http://novaoraldesigns.com/uploads/1/3/0/6/130620793/491840.pdf
    • http://9f60dnj005.com/uploads/1/3/0/4/130488179/130488179.html#childish+gambino+sober+song

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000147a.bin
62d24bb1c3c31b5754426c6bc906b29ac689902d5697f70d1c13f49284059c0f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x147A 8224 bytes

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