Malicious PDF — malware analysis report

Static analysis result for SHA-256 2bfedfa8fdee5e54…

MALICIOUS

PDF

33.3 KB Authoring application: PDF Studio
MD5: 686b85507ee4566c434eae16886070ca SHA-1: 4e5bd7a82b0d5f070851a199e768b5b994ae595e SHA-256: 2bfedfa8fdee5e54f814d611ff8fa77fba3a1c5437e5a2393512a5535d2383df
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 documents hosted on various domains. This behavior is indicative of a link farm or a phishing campaign aiming to redirect users to potentially malicious content. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports the phishing and traffic redirection hypothesis.

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://2210enterprisedrive.com/uploads/1/3/0/4/130436093/tapujijiduzavore.pdf
    • http://motomomfuel.com/uploads/1/3/0/6/130639242/fezisaw.pdf
    • http://v-techsnc.com/uploads/1/3/0/3/130379179/xilebene_bokakevesikaw.pdf
    • http://koahspearfishing.com/uploads/1/3/0/2/130289399/1174110.pdf
    • http://ddeusa.com/uploads/1/3/0/3/130313113/6540488.pdf
    • http://contentmentcoaching.org/uploads/1/3/0/3/130379083/jidalazum.pdf
    • http://kapunix.newdex.xyz/uploads/2020/01/28/sobuvujagumagewixe.pdf
    • http://thelanguagefinder.com/uploads/1/3/0/5/130550841/sokepufodo_vumisadetotopej.pdf
    • http://musigep.org/uploads/1/3/0/4/130483551/4330214ecfb911.pdf
    • http://luvofit.com/uploads/1/3/0/2/130291971/gemenefijora.pdf
    • http://charlestonvillagehall.co.uk/uploads/1/3/0/4/130476413/vosabedofulelenot.pdf
    • http://arcadiagardensllclandscapinganddesign.com/uploads/1/3/0/7/130738639/130738639.html#theoretical+and+experimental+probability+worksheet+kuta

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001299.bin
35a4462ac7e7dc5da274a126f486d9323404d3073df49dff298d10aaa609a138		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1299 8224 bytes

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