Malicious PDF — malware analysis report

Static analysis result for SHA-256 15ee99c1fc87a0d9…

MALICIOUS

PDF

36.3 KB Authoring application: Karbon
MD5: 917e42158221a6bf1f32645f6c38cda4 SHA-1: a578094ccc27a3361aba41bf3f73577182a73846 SHA-256: 15ee99c1fc87a0d9107d6eedb6e8d29dbdc4f0886dd05b0206f7a7a8a8a4ab96
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded external links, a common technique for SEO poisoning or distributing malicious content. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the ML classifier strongly indicate malicious intent. The embedded URLs likely serve as a link farm to redirect users to malicious sites or download further payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://bancodetalentos.org/uploads/1/3/0/7/130738621/tobid-zibotaxevuguzud.pdf
    • http://sbasinc.org/uploads/1/3/0/2/130272474/mixememelifokotaz.pdf
    • http://guildaware.org/uploads/1/3/0/5/130539170/xobif-guwofaxukebi.pdf
    • http://pampanga-properties.com/uploads/1/3/0/2/130272485/fb1019ac437c.pdf
    • http://touchmile.com/uploads/1/3/0/3/130323979/0e5f32517.pdf
    • http://pleasuretron.com/uploads/1/3/0/4/130489523/kimitepe.pdf
    • http://walk-cards.com/uploads/1/3/0/4/130475964/lujofobitavug_dexumuwezidedu_nanudeb_gisetopuxi.pdf
    • http://www.soundofpeace.org/uploads/1/3/0/5/130588342/gegadipi.pdf
    • http://kandlcast.com/uploads/1/3/0/2/130289270/665258.pdf
    • http://kmu-netzwerk-ag.ch/uploads/1/3/0/4/130435667/0b2398282ec4c.pdf
    • http://code-camp.ru/uploads/1/3/0/6/130621212/43cb8644ae.pdf
    • http://www.jawzexercise.com/uploads/1/3/0/8/130814588/f754a6e3846.pdf
    • http://northchannelnetwork.org/uploads/1/3/0/7/130740129/2659047.pdf
    • http://netmotiondemo.com/uploads/1/3/0/8/130814914/1832404.pdf
    • http://mneronava.com/uploads/1/3/0/6/130620646/71a3a0e2500d2.pdf
    • http://fargondrestoration.com/uploads/1/3/0/7/130739256/61bb9db13da9.pdf
    • http://monopolybeach.com/uploads/1/3/0/7/130775865/nakatikofu.pdf
    • http://pixiechildcare.org/uploads/1/3/0/4/130436244/pufojujupuboxedo.pdf
    • http://academyofintegratedtherapies.com/uploads/1/3/0/6/130621456/5635587.pdf
    • http://lspeg.com/uploads/1/3/0/2/130287513/8640196.pdf
    • http://hanamana.com/uploads/1/3/0/4/130476205/bogetesazi.pdf
    • http://15kyg.bpmtc.com/uploads/1/3/0/5/130545334/130545334.html#pdf+reader+pc+software+download

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002e35.bin
f0df6c183c414f33c83fe15d499340791e795e1e5a72a160a89877cfdd7cf1d7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2E35 7648 bytes

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