Malicious PDF — malware analysis report

Static analysis result for SHA-256 14c0ac05199e3463…

MALICIOUS

PDF

34.8 KB Authoring application: SWFTools
MD5: ec1c6963cd418d940083704c9e99bb4b SHA-1: d6896abf7f767b103a062d1b2a21644727c8fa9a SHA-256: 14c0ac05199e346323b29f1bfa6a68bc77c4dd96cd84bd2e95dcedad75706670
192 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links to external PDF files, a technique often used to distribute phishing content or further malware stages. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the ML classifier strongly indicate malicious intent. The embedded links are likely part of a link farm designed to host malicious content or redirect users to phishing sites.

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
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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://topendtour.com.au/uploads/1/3/0/6/130604977/5614511.pdf
    • http://nwm9.club/uploads/1/3/0/8/130874516/b8e76420.pdf
    • http://katrinacjohnsonphd.com/uploads/1/3/0/6/130604417/69b0b56d7a38a4.pdf
    • http://www.thefathershouse-stmichaels.com/uploads/1/3/0/9/130969018/xoxaxipezomoxilo.pdf
    • http://boundlessformationz.com/uploads/1/3/0/4/130483603/xemesisatesop.pdf
    • http://thelavendermermaid.com/uploads/1/3/0/7/130775596/pepobegut_dukamoloke.pdf
    • http://karlheine.net/uploads/1/3/0/4/130491063/5060524.pdf
    • http://nicolecthomaswrites.com/uploads/1/3/0/6/130621841/xetove.pdf
    • http://wholesalecabinetshouston.com/uploads/1/3/0/5/130546885/4693095.pdf
    • http://mail.alaskapicker.com/uploads/1/3/0/6/130605012/7975394.pdf
    • http://thriftmyhome.com/uploads/1/3/0/5/130550982/8b689.pdf
    • http://northcoloradomedevac.com/uploads/1/3/0/5/130550879/zuwigukotoxo_podulupasebo_wulek.pdf
    • http://veterinarybusinessintelligence.com/uploads/1/3/0/7/130775164/107876be97.pdf
    • http://sdsufiji.com/uploads/1/3/0/8/130814863/130814863.html#gta+san+andreas+cheats+old+xbox

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002e7e.bin
2c4336864d0344d06fafd378b1b4a77f2d9aa5be3855dc9b4e21b875968fb897		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2E7E 8096 bytes

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