Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0d43a0c9cf27b50…

MALICIOUS

PDF

38.3 KB Authoring application: Pdftk
MD5: 361a4cbcf72afdccf4241affa5dc6fab SHA-1: a382ed0957dbf349dda2e309731ef93bf021976f SHA-256: e0d43a0c9cf27b50000f43eb8b30344bffa1655bcedf381ab3134709a31b6b75
150 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, identified as a link farm, designed to redirect users to malicious PDF files. The ClamAV detection and ML classifier strongly indicate malicious intent, likely for phishing or malware distribution. The embedded URLs are the primary indicators of compromise, suggesting a campaign to distribute further malicious content.

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://buildnobleinc.com/uploads/1/3/0/4/130476649/tolopisovejexe-gavafilibosinu.pdf
    • http://appsolutecaregroup.com/uploads/1/3/0/5/130589337/8145639.pdf
    • http://desatascossantcugat.com/uploads/1/3/0/8/130874079/9265699.pdf
    • http://www.blossomhomegifts.co.uk/uploads/1/3/0/7/130739996/dakoxibix_xokik.pdf
    • http://vveezz.com/uploads/1/3/0/3/130379167/nawufepozekevumitov.pdf
    • http://www.helpmarketme.com/uploads/1/3/0/4/130476327/aae6e12fa.pdf
    • http://deskhelper.net/uploads/1/3/0/2/130271237/vojip.pdf
    • http://jorcausa.com/uploads/1/3/0/2/130291489/4268030.pdf
    • http://robertoribeiro.net/uploads/1/3/0/6/130620512/e2650108.pdf
    • http://autodiscover.miniaturesbygarcia.com/uploads/1/3/0/5/130546354/tatumamawo_wesobosezo_vaxumawutanabu_migobevoxi.pdf
    • http://robinsonbasketball.com/uploads/1/3/0/2/130287246/1fdf72c4cb217a.pdf
    • http://micrusade.com/uploads/1/3/0/6/130639607/zawoginesekitejozo.pdf
    • http://structureinsurancegroup.com/uploads/1/3/0/6/130639593/nalovivase.pdf
    • http://www.seniorprojectlive.com/uploads/1/3/0/6/130620375/887026.pdf
    • http://connectingschoolstocommunity.com/uploads/1/3/0/6/130639750/fawufevusanedim-bobegi.pdf
    • http://thelewisduo.com/uploads/1/3/0/2/130288559/vumetirewukuxudowala.pdf
    • http://naturalproductsbyshensare.com/uploads/1/3/0/2/130270993/c8311.pdf
    • http://mspokrantsband.ca/uploads/1/3/0/5/130551427/werege.pdf
    • http://decibel-doo.com/uploads/1/3/0/5/130588232/3443650.pdf
    • http://premierfamilyphysicians.com/uploads/1/3/0/2/130271102/3062778.pdf
    • http://barkpark-online.com/uploads/1/3/0/7/130776885/tapibuxuzatujuxuneta.pdf
    • http://bestquotesdaily.com/uploads/1/3/0/6/130620574/mekokojalefuxagu.pdf
    • http://timeframingconsulting.com/uploads/1/3/0/7/130739949/130739949.html#environmental+social+and+health+impact+assessment+%28eshia%29

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000034c6.bin
306f788c1c621e586bc00525b9f94b527104a495f170a8ae8be4d96a9228db4c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x34C6 7600 bytes

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