Malicious PDF — malware analysis report

Static analysis result for SHA-256 3df9001fb5d86770…

MALICIOUS

PDF

38.4 KB Authoring application: Inkscape
MD5: fcb5f29243b2e2f44190eb8f44817dc3 SHA-1: f1f6e5ea4f137ba3e1ef069173aa3e586608b933 SHA-256: 3df9001fb5d86770fd9cee80a596823c8c9df7f7e82b4cf598377835f04a12ec
150 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded URLs pointing to other PDF documents, a technique often used for SEO manipulation or to distribute malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent, specifically identified as phishing and traffic redirection. The embedded URLs are the primary indicators of compromise.

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://mingcamellia.com/uploads/1/3/0/6/130621951/ec5e9.pdf
    • http://childhoodwarrior.com/uploads/1/3/0/5/130589137/pozibigurarizuwexuvu.pdf
    • http://youarenotaloneart.com/uploads/1/3/0/5/130588841/9653451.pdf
    • http://retumete.sacocompany.net/uploads/2020/01/29/da2fdcb7266bad.pdf
    • http://natashabentley.co.uk/uploads/1/3/0/6/130640090/pujas-fotuxazupimevo.pdf
    • http://stackability.com/uploads/1/3/0/4/130435872/1242731.pdf
    • http://mysunshinerides.com/uploads/1/3/0/7/130776520/kamaputusu.pdf
    • http://10122006.com/uploads/1/3/0/8/130814173/majiduxal.pdf
    • http://mahsamohaghegh.com/uploads/1/3/0/2/130291036/bisaxagobuwikej.pdf
    • http://snohomishminigolf.com/uploads/1/3/0/3/130313086/502475.pdf
    • http://aakyoga.com/uploads/1/3/0/4/130484005/7516bbd3721f5.pdf
    • http://theelfbox.com/uploads/1/3/0/4/130476766/130476766.html#archaebacteria+number+of+cells

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000128b.bin
669c77970a00ef49424a3ef7df958df9f6c6c489464da418fbb92672a64cadc2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x128B 8236 bytes

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