Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb5f9ff30ab5b9b9…

MALICIOUS

PDF

55.9 KB Authoring application: PDF Studio First seen: 2020-09-24
MD5: 81c20941c9527fc8a02b3c9ceb8b2590 SHA-1: af152c83ed73bea9e5ca0c7f401321fbbe5388b1 SHA-256: fb5f9ff30ab5b9b93c7fdf989ad497fee996713167ba4a5b5c6ae44d26e7eab5
152 Risk Score

Malware Insights

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

The PDF file was detected by ClamAV as Pdf.Phishing.TtraffRobotInstall. The primary heuristic indicates a large number of external PDF links, suggesting a link farm for SEO manipulation or to host further malicious content. The embedded URLs are likely part of this scheme, redirecting users to potentially harmful sites. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 3

  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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.
  • 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://nancytoofani.com/uploads/1/3/0/4/130435659/vibisaw-nosokejomowotum.pdf In PDF document text
    • http://nadiacorson.com/uploads/1/3/0/3/130312986/kekexilipitigonupedi.pdfIn PDF document text
    • http://lakuv.do-long.com/uploads/2020/01/28/7cde93b4bcf.pdfIn PDF document text
    • http://joescottportfolio.com/uploads/1/3/0/6/130620838/kopok_wevizesenewiruw_vetexesexamin_jogoragolave.pdfIn PDF document text
    • http://audioallure.com/uploads/1/3/0/4/130483394/bowesafob.pdfIn PDF document text
    • http://xuxefakom.vipiski-besplatno43.icu/uploads/2020/01/28/viburerati.pdfIn PDF document text
    • http://wirol.vipiski-besplatno54.icu/uploads/2020/01/28/govafifixipiwib_gusizufumadimel.pdfIn PDF document text
    • http://ke-heslop.org/uploads/1/3/0/3/130313193/50c63c1f.pdfIn PDF document text
    • http://coratoloassociatesllc.com/uploads/1/3/0/5/130589133/755381.pdfIn PDF document text
    • http://narrins.com/uploads/1/3/0/5/130545254/4840935.pdfIn PDF document text
    • http://lindseyvlasman.com/uploads/1/3/0/3/130323146/dujimulizewiza-jozedefi.pdfIn PDF document text
    • https://kijetozev.weebly.com/uploads/1/3/0/5/130588921/notiw.pdfIn PDF document text
    • http://myuntoldpleasures.com/uploads/1/3/0/3/130379777/a9638bec05a51e.pdfIn PDF document text
    • http://derun.lada-detail.net/uploads/2020/01/27/db843caf2f.pdfIn PDF document text
    • http://sironatour.ru/uploads/2020/01/29/xipon.pdfIn PDF document text
    • http://funetosiz.kvartiradomkzn.ru/uploads/2020/01/28/wokegopeka.pdfIn PDF document text
    • https://rasavinev.weebly.com/uploads/1/3/0/4/130488417/fefimonoxo.pdfIn PDF document text
    • https://fodufixetok.weebly.com/uploads/1/3/0/5/130590478/4307415.pdfIn PDF document text
    • http://alanpliuart.com/uploads/1/3/0/6/130622022/mijijixojenumoxug.pdfIn PDF document text
    • http://boominworld.com/uploads/1/3/0/5/130541597/mefudililovujuka.pdfIn PDF document text
    • http://montanabridalshows.com/uploads/1/3/0/4/130483376/7852267.pdfIn PDF document text
    • http://nolanspettingzoo.weebly.com/uploads/1/3/0/3/130324030/xivabewonimubitef.pdfIn PDF document text
    • http://cmoseleymusic.com/uploads/1/3/0/5/130542912/184a6ffe261dee.pdfIn PDF document text
    • http://bluecrabkeyflorida.com/uploads/1/3/0/2/130289428/d7ce34b3a5c4394.pdfIn PDF document text
    • http://sendsomehappymail.com/uploads/1/3/0/6/130639140/130639140.html#chirugali+pata+songIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://fedoraproject.org/wiki/Licensing/LiberationFontLicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001888.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1888 7584 bytes
SHA-256: bb55b5a15e8be093378445e4294a34da30be40822df77ba83e3b11fc5b905f1e
font_01_sfnt_off00009fa1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9FA1 2652 bytes
SHA-256: 1b3f82cd74c5b6671cc0c0d4a6c7877b74bb57ca469b2a61ef541918e41af838

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