Malicious PDF — malware analysis report

Static analysis result for SHA-256 6bb3b58838e098aa…

MALICIOUS

PDF

42.0 KB Authoring application: Serif PagePlus
MD5: f5156cc8ec9f922faa80b23f39d3b7e6 SHA-1: 1bd0519ddae937f09545eaab08af7d0633c80e65 SHA-256: 6bb3b58838e098aac7cad8cf14bba977f530bdbeeee83a8fec10bb31443c725c
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded external links, a technique often used for SEO spam or to distribute further malicious content. ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the ML classifier strongly indicate malicious intent. The document body's content about agile programming appears to be a lure to disguise the malicious link farm.

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 https://vopajadebed.weebly.com/uploads/1/3/0/2/130272080/6250600.pdf
    • http://cottageglenattooele.com/uploads/1/3/0/4/130436410/koritepi_dusejebis_fetaz_mimideba.pdf
    • http://amazonaskitchen.com/uploads/1/3/0/5/130590355/f8f994e20.pdf
    • http://qqblog.net/uploads/1/3/0/6/130621665/d65ab2.pdf
    • http://mymorethan.com/uploads/1/3/0/5/130551586/solagol_pedijewet_memube_kiwurerebik.pdf
    • http://vilven.com/uploads/1/3/0/5/130545360/lebebat.pdf
    • https://fadenewenolum.weebly.com/uploads/1/3/0/6/130603931/sovisura.pdf
    • http://rhfibers.com/uploads/1/3/0/5/130544086/2783884.pdf
    • https://laroputazetus.weebly.com/uploads/1/3/0/2/130287536/7762349.pdf
    • http://alleylitke.com/uploads/1/3/0/6/130605074/01bee266cd7.pdf
    • http://noboysbeauty.com/uploads/1/3/0/2/130287881/danewajebogulu.pdf
    • http://tcsonline.net/uploads/1/3/0/3/130379575/130379575.html#agile+pair+programming+scrum

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000128d.bin
51be840948a7375de2f1895811a02b293f6598cdf6f00c31eaa50db6b8c4deb1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x128D 8360 bytes

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