Malicious PDF — malware analysis report

Static analysis result for SHA-256 bbea261b667c2b5a…

MALICIOUS

PDF

93.0 KB Authoring application: Karbon
MD5: 2d76b4386c7b7c1029d936eee4de3f5f SHA-1: c6e579b990e1039fc6219488396a331bf9dcbe92 SHA-256: bbea261b667c2b5af3429593de01449f23fa661d7e3869c774a779109eaef7b0
150 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including a critical alert for a link farm and ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0'. The document body contains numerous embedded URLs pointing to external PDF files, indicating a likely attempt to redirect users to malicious content. The ML classifier also strongly indicated maliciousness.

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 http://happyterapias.com/uploads/1/3/0/7/130738719/6d4c8a33.pdf
    • http://jokerlovesharleyquinn.com/uploads/1/3/0/2/130289237/duxemovijujaxalivu.pdf
    • http://britishwhitecattleaustralia.com/uploads/1/3/0/5/130539584/sosozilojopereb.pdf
    • http://bilgesgt.org/uploads/1/3/0/6/130639333/8812328.pdf
    • http://eastelephant.us/uploads/1/3/0/7/130776408/6597336.pdf
    • http://www.store.cestarisheep.com/uploads/1/3/0/5/130550972/8e466c447773b.pdf
    • http://markanthony.us/uploads/1/3/0/4/130483142/wafovifoxugegu.pdf
    • http://sabhfoundation.net/uploads/1/3/0/5/130544968/vabimuxul_lejakibogakeko_tenab.pdf
    • http://autoinsurancecompare.com/uploads/1/3/0/3/130379291/kamipovabenoleg.pdf
    • http://mindvibelife.com/uploads/1/3/0/5/130543472/58505582efb2b32.pdf
    • http://carpetcleancary.com/uploads/1/3/0/8/130814172/jukuboden.pdf
    • http://fitfoodsexpress.com/uploads/1/3/0/7/130739117/jubigo.pdf
    • http://louisvillepsychiatry.com/uploads/1/3/0/2/130289292/863f895ec35da58.pdf
    • http://netballinthecommunity.co.uk/uploads/1/3/0/7/130775310/fivutaliduteli.pdf
    • http://streetbrunch.com/uploads/1/3/0/6/130639768/96c144e65ee4767.pdf
    • http://www.108dresses.com/uploads/1/3/0/4/130476597/130476597.html#hamlet+act+2+scene+1+summary

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00000fda.bin
c1f89f67085ee20ddb7bf55f73964cc9d16438f8376e19bedb0a3e7bae40ac38		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFDA 8000 bytes

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