Malicious PDF — malware analysis report

Static analysis result for SHA-256 3adb7874dc1de43d…

MALICIOUS

PDF

34.1 KB Authoring application: GIMP
MD5: 921ce6a54c67cb09cfafa60bdc952931 SHA-1: 96112766410b0d5bbbcbe7a3ec9d25e36f5f2ccb SHA-256: 3adb7874dc1de43dbed02ca6a63304533c6e9feb38d66b8b6069eb65877d737e
120 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ClamAV with the signature Pdf.Phishing.TtraffRobotInstall-7605656-0. Static analysis revealed a significant number of embedded external links, characteristic of a link farm designed to distribute phishing or malware payloads. The primary heuristic firing, PDF_SEO_LINK_FARM, directly supports this observation, indicating a mass of external PDF links originating from the dominant host duckponics.net.

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://duckponics.net/uploads/1/3/0/2/130288522/gozuxogofovi_gewawadepeturi_sapewateb.pdf
    • http://branchlutheranschoolshaiti.net/uploads/1/3/0/4/130489262/3720433.pdf
    • http://myartisfashion.com/uploads/1/3/0/2/130288341/xuvofuziwefixesip.pdf
    • http://leplaisirdevendre.com/uploads/1/3/0/7/130739132/2735100.pdf
    • http://mexicofolk.net/uploads/1/3/0/6/130620729/0c434519947e394.pdf
    • http://cwegcommunity.org/uploads/1/3/0/3/130313671/gesakuvasadak_gotogedukifedi.pdf
    • http://leblog.luludansmarue.org/uploads/1/3/0/6/130639567/wuxamevinozezosejaj.pdf
    • http://beatinghearthealth.com/uploads/1/3/0/2/130289595/7e44b5eae31c7.pdf
    • http://propertynearyou.ph/uploads/1/3/0/7/130740015/lulisonur.pdf
    • http://buildspan.uk/uploads/1/3/0/6/130603969/1365690.pdf
    • http://acutabovesalon.biz/uploads/1/3/0/3/130323997/muvitimasaxerureriji.pdf
    • http://fuzzlab.org/uploads/1/3/0/5/130589207/2935284.pdf
    • http://growthdemons.com/uploads/1/3/0/5/130543020/19d7ee0cff.pdf
    • http://lawyerchad.com/uploads/1/3/0/6/130639998/jezinedubewuvepavapo.pdf
    • http://longdistancevoter.net/uploads/1/3/0/6/130621776/gores.pdf
    • http://security-exam.com/uploads/1/3/0/5/130590503/2245757.pdf
    • http://miraprintservices.com/uploads/1/3/0/6/130603841/bimuvukuzo.pdf
    • http://host10.carmichaelnl.com/uploads/1/3/0/9/130969329/130969329.html#letter+d+worksheets+for+1st+grade

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002815.bin
0e9a490b005219400cd5b56a43e5effbe6e8dfe54bcbdc7b7103dd7b56ae91d0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2815 8020 bytes

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