Malicious PDF — malware analysis report

Static analysis result for SHA-256 b15e4f554bea9b07…

MALICIOUS

PDF

37.1 KB Authoring application: PDFBox
MD5: 98aa3c9b188fcaca0333719db9e59f07 SHA-1: 15838d6b90cec0ea2483a79be4fc684ba776f318 SHA-256: b15e4f554bea9b0796279b904618725fafebe743bf3f064f698820d925586b1e
128 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1566 Phishing

The PDF contains a large number of external links, identified as a link farm, with the primary host being besthairextensionswilmington.com. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the presence of a visual download button lure strongly suggest a phishing campaign. The document body, while containing garbled text, also includes the same URLs found in the heuristics, reinforcing the malicious intent.

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
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://besthairextensionswilmington.com/uploads/1/3/0/5/130550970/vamutad-tuzidomasuvodez-bigisojekoje.pdf
    • http://globalwarming1.com/uploads/1/3/0/5/130538997/genagetiromuse.pdf
    • http://schoolchoicevermont.com/uploads/1/3/0/5/130539105/fc1e28c.pdf
    • http://talesfromsixthgrade.com/uploads/1/3/0/6/130604737/2258000.pdf
    • http://cambderma.co.uk/uploads/1/3/0/5/130550755/3b35bf28f5f.pdf
    • http://aaagospelminister.com/uploads/1/3/0/6/130621203/777723.pdf
    • http://chopshopsaladshop.com/uploads/1/3/0/4/130476671/donexokaramezapa.pdf
    • http://neorenbohemienne.com/uploads/1/3/0/2/130289571/sesatax.pdf
    • http://bdplumbingservice.com/uploads/1/3/0/5/130589133/ruzegutovuze_tesolo_depuku_xemujagum.pdf
    • http://policetrailer.com/uploads/1/3/0/2/130272282/130272282.html#2010+gmc+acadia+service+manual+pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000011f8.bin
f7ea5fa024dceb752ddea47b3f126df8ad28f9f73770b456b3cacc71a8458c1a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11F8 7700 bytes

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