Malicious PDF — malware analysis report

Static analysis result for SHA-256 b4434b7eda2e756e…

MALICIOUS

PDF

35.8 KB Authoring application: LibreOffice Draw
MD5: 12299917ea73cd0a38ecb37d71197414 SHA-1: c4f112662f3206da60e7895c8ed93cc8549172bb SHA-256: b4434b7eda2e756ee7132d659f8bcb09f5eee5c9cc02825985a1383dc7b01f1e
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links to external PDF files, a technique often used for SEO manipulation or to distribute further malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent, specifically identified as phishing. The embedded URLs are the primary indicators of compromise, pointing to a network of potentially malicious sites.

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://octsummershow.com/uploads/1/3/0/2/130288864/defiwumilasunoraji.pdf
    • http://samanthalawsonart.com/uploads/1/3/0/5/130590569/6339971.pdf
    • http://livasixo.finni.ru/uploads/2020/01/28/parogavi.pdf
    • http://mouseandcastle.ca/uploads/1/3/0/5/130543462/a3da5.pdf
    • http://peoplefollowingjesusworldwide.org/uploads/1/3/0/6/130603859/a03de9e3c9a.pdf
    • http://argoschool.ru/uploads/2020/01/28/6c5ad585c.pdf
    • http://staygraceful.us/uploads/1/3/0/2/130273978/42de65e4eaf96.pdf
    • http://rurostelekom.ru/uploads/2020/01/28/1910637.pdf
    • http://spiritcircuits.net/uploads/1/3/0/2/130289371/xetavebesis.pdf
    • http://ottawahomefinders.com/uploads/1/3/0/4/130476649/xofisogem-xusatowi.pdf
    • http://rodefeji.aksenovaphoto.com/uploads/2020/01/28/vorasaginibewiba.pdf
    • http://xad.egwrtjetggg.xyz/uploads/2020/01/27/xipimidikasurise.pdf
    • http://spectrumsignscalifornia.com/uploads/1/3/0/5/130590503/167613.pdf
    • http://motortainment.com.au/uploads/1/3/0/5/130588185/4067171.pdf
    • http://rabata.rzgraphics.tech/uploads/2020/01/28/vakugisa.pdf
    • http://nittygrittydetailing.com/uploads/1/3/0/3/130379597/7072639.pdf
    • http://powerofproton3.website/uploads/1/3/0/5/130588214/risijasebowimub-tidigubadat-virejegunebifo.pdf
    • http://oneactioncalendar.org/uploads/1/3/0/6/130604636/vukividaj-vaxenurixa.pdf
    • http://iweargreatness.com/uploads/1/3/0/6/130640105/130640105.html#ashby+castle+pre+prep+uniform

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001545.bin
060301e665705d47c27b83637e16cfa227ad2715309a69e5797bd7aae7682d95		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1545 8136 bytes

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