Malicious PDF — malware analysis report

Static analysis result for SHA-256 bace96c4826f0ead…

MALICIOUS

PDF

27.7 KB Authoring application: Nitro PDF
MD5: 083a020abd151761af607638275163e1 SHA-1: 7a6a9b8f970c503b32dca29353bc56736f29f25b SHA-256: bace96c4826f0eadc1069a4cc010e6c9eaae008e7cdd05eb4c0a651b8f674abc
150 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded URLs, forming a link farm, which is a common tactic for distributing malicious content or phishing pages. The ClamAV detection and ML classifier strongly indicate maliciousness. The document body, though partially corrupted, suggests a lure related to 'keto diet free pdf', directing users to download further PDF files from various domains.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://10todo.com/uploads/1/3/0/5/130542982/6817862.pdf
    • http://hackythoughts.com/uploads/1/3/0/4/130476204/8951275.pdf
    • http://goblow.org/uploads/1/3/0/5/130542875/3455363.pdf
    • http://artispira.com/uploads/1/3/0/8/130813366/xunuw-wugodubude-ponidoto.pdf
    • http://www.118finefoods.com/uploads/1/3/0/6/130604768/jewekomadox-kibabezok-wanewemibawevo-moxega.pdf
    • http://joandickinson.com/uploads/1/3/0/6/130621282/mopinejudu.pdf
    • http://taylorcountydemocraticparty.com/uploads/1/3/0/2/130274098/gejuwigawakexi_zedete_fuvud_tegofapijibejo.pdf
    • http://melanie.team/uploads/1/3/0/5/130550803/0a9ac32e5c47.pdf
    • http://amundsenpr.com/uploads/1/3/0/5/130542937/9327207.pdf
    • http://www.assured-driveways.co.uk/uploads/1/3/0/7/130776875/fe50f0a9e2f55ad.pdf
    • http://dominic-mckinney.pleasingfood.com/uploads/1/3/0/6/130603935/130603935.html#keto+diet+free+pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000017e1.bin
5fa4a47f8542c4cffbc5676c53d3d3ed44ce65901519ba22c19cdaee62450eae		 pdf-font-stream PDF embedded font (sfnt) at offset 0x17E1 7012 bytes

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