Malicious PDF — malware analysis report

Static analysis result for SHA-256 d5cf0b11080aae7c…

MALICIOUS

PDF

35.6 KB Authoring application: OpenOffice Draw
MD5: 873fb9c9d260bcfe3cf41b6a9933907c SHA-1: 481e1c7f470887bee37ac2d922245a954d91d0ab SHA-256: d5cf0b11080aae7ca68091979bfdc0881fc16aba6364e368aed149f05130d1f8
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links to external PDF files hosted across various domains. This behavior is indicative of a link farm or a distribution mechanism for further malicious content. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or malicious redirection intent. No scripts were extracted from this sample, limiting the analysis of direct execution capabilities.

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://10thirtychoir.org/uploads/1/3/0/8/130813055/3ddc1.pdf
    • http://datefame.com/uploads/1/3/0/6/130605435/kimafe.pdf
    • http://smashmouthsweetsllc.com/uploads/1/3/0/6/130621210/6999824.pdf
    • http://sharingresourceprosperity.com/uploads/1/3/0/8/130873708/penig.pdf
    • http://www.bareknuckleswriting.com/uploads/1/3/0/7/130738567/6099953.pdf
    • http://cadenceresource.com/uploads/1/3/0/2/130288753/navupapenoluridukilo.pdf
    • http://12utct.com/uploads/1/3/0/7/130739934/9229445.pdf
    • http://angelcleaningservice.net/uploads/1/3/0/5/130589348/dinol-vajosovefifo.pdf
    • http://msluxecosmetics.com/uploads/1/3/0/6/130604856/nufafozenut.pdf
    • http://puppettearspod.com/uploads/1/3/0/6/130621447/vivegigoromuzopowine.pdf
    • http://webmail.collegefactory.org/uploads/1/3/0/6/130639690/saburuximupe_fifux_gajalibajeb.pdf
    • http://mywonderowl.com/uploads/1/3/0/3/130323207/030e111ef6.pdf
    • http://singlebarrelevent.com/uploads/1/3/0/6/130639836/wukixerimawavoduf.pdf
    • http://peterdoseck.net/uploads/1/3/0/5/130588906/8827710.pdf
    • http://shack63.pleasingfood.com/uploads/1/3/0/6/130639689/130639689.html#free+printable+calendar+2018+pdf
    • http://smashmouthsweetsllc

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000309c.bin
5fb5a7fdbfa1d1ab524078a8cc6d43a54489346bd3892b27a3aa3a3dcf2c03a2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x309C 8132 bytes

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