Malicious PDF — malware analysis report

Static analysis result for SHA-256 6b7ec82012967097…

MALICIOUS

PDF

31.9 KB Authoring application: Nitro PDF
MD5: 07f2dc371fb13062c4b269e804c1320d SHA-1: 17fda469cfda16493750efa3f4c94b5dcfcbc367 SHA-256: 6b7ec82012967097c105da2c175a90283ef89ba934820771a4d33e3027126c4f
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the ML classifier output strongly indicate malicious intent. The embedded URLs are likely used to redirect users to phishing sites or to distribute further malware, aligning with a phishing or SEO-based distribution attack pattern.

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://mkwritingsolutions.co.uk/uploads/1/3/0/5/130551055/vavoko.pdf
    • http://swissinnovationchallenge.com/uploads/1/3/0/4/130475883/xekawaj.pdf
    • http://medmico-h2020.com/uploads/1/3/0/6/130605435/ee73b316.pdf
    • http://byronlopezellington.com/uploads/1/3/0/6/130604523/mimad.pdf
    • http://megazin1.fun/uploads/2020/01/28/6796795.pdf
    • http://catcollaborative.com/uploads/1/3/0/6/130620195/97e00.pdf
    • http://kob.fuck4me.top/uploads/2020/01/28/2addbaa.pdf
    • http://rakow.3ndfl-nalogi.ru/uploads/2020/01/28/3100558.pdf
    • http://loudounvarealty.com/uploads/1/3/0/6/130605228/199453.pdf
    • http://newleaf-dayspa.com/uploads/1/3/0/5/130551994/wukufigade_gudiminamubig_mirikivepejasij_besojan.pdf
    • http://7soundenergy.com/uploads/1/3/0/5/130589305/fimowudirakuxo.pdf
    • http://lrg.ky/uploads/1/3/0/6/130639347/ee29d742cad6dda.pdf
    • http://obtainablewellness.com/uploads/1/3/0/6/130620460/merazuvafumi_sopurujuwo.pdf
    • http://beb.lotte-business-centre.ru/uploads/2020/01/28/magagenelura.pdf
    • https://farinoluxu.weebly.com/uploads/1/3/0/5/130541846/497667.pdf
    • http://brentshirleyband.com/uploads/1/3/0/5/130544295/mogilosejomivix.pdf
    • http://denta-s.ru/uploads/2020/01/27/naxitinopa_dilepufavoxesug.pdf
    • http://ndchair.com/uploads/1/3/0/3/130323409/130323409.html#aerodrome+and+ground+aids+pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001487.bin
be2370620fbe17cb17c7809558b1c604776b7a33ecbdd09b43d97019e31bd17a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1487 7560 bytes

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