Malicious PDF — malware analysis report

Static analysis result for SHA-256 0b9f22567cba2a59…

MALICIOUS

PDF

34.7 KB Authoring application: Karbon
MD5: be0ca93e446445367ad65f7dedcdecce SHA-1: a35c8fe6b778402b61746f899cbcee16ead5e02d SHA-256: 0b9f22567cba2a59d6704f10c9969f5e667425f8a54dec129006e7df793b299a
192 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF contains a large number of embedded URLs, suggesting it is part of a link farm designed to direct users to malicious content. The heuristic 'SE_PASSWORD_ARCHIVE_LURE' indicates the document may also be instructing users to open a password-protected archive, a common tactic to bypass security scanners. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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://inspiringhealthybodies.com/uploads/1/3/0/3/130313021/tubatamonizetobetowi.pdf
    • http://comicbookregistry.com/uploads/1/3/0/2/130289421/7364224.pdf
    • http://theperfectpresentation.com/uploads/1/3/0/7/130775958/3433699.pdf
    • http://barnwoodbilliards.com/uploads/1/3/0/3/130379674/9303266.pdf
    • http://michealsdeckrepair.com/uploads/1/3/0/5/130539714/nazekin-zetipuzi-tiwebuxixe.pdf
    • http://yourmateapparel.com/uploads/1/3/0/6/130639183/rerovezetomeg_karogofetajaju_ratuwadopufawad.pdf
    • http://paschal77.com/uploads/1/3/0/7/130739991/pekoxipowabum.pdf
    • http://www.lot4lloyds.com.au/uploads/1/3/0/6/130604594/masadusejoda-xaratumod-famitudowepevep-xexujetidebitil.pdf
    • http://moontowerdyeworks.com/uploads/1/3/0/6/130622104/67bbaba0265e150.pdf
    • http://thelazyrussian.com/uploads/1/3/0/2/130271001/medexadosebeg-fezonavimo-zagolavevoganes-bisovidolasib.pdf
    • http://patriciajaggie.com/uploads/1/3/0/2/130272488/weloxifomepom.pdf
    • http://portalfarmaceutico.net/uploads/1/3/0/4/130490277/12262.pdf
    • http://admiralsigns.us/uploads/1/3/0/8/130814995/jifefuxawujifikakidi.pdf
    • http://mta-sts.mail.dickersongreenseminary.org/uploads/1/3/0/6/130640229/130640229.html#estilos+y+estrategias+de+afrontamiento+al+estr%C3%A9s

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002da7.bin
66ab8bac3c964146c7cbbcba66ed4546fa020c241a791359fdfc7383b7777547		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2DA7 8556 bytes

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