Malicious PDF — malware analysis report

Static analysis result for SHA-256 695dee52d7bcc35d…

MALICIOUS

PDF

38.1 KB Authoring application: OpenOffice Draw
MD5: 2bf560ec20257a45dcbd3ac61eed88e1 SHA-1: 65e049016c34cb58acb1cd91cc6e383f38dcb7a1 SHA-256: 695dee52d7bcc35d72dc6df64d0fcbed1ee8244fb28173fe07d7030cf4fa3e49
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a large number of embedded external links, a technique often used for SEO manipulation or to distribute malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or malware distribution. No scripts were extracted, and the document body was heavily obfuscated, preventing a more detailed analysis of the specific lure.

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://missinglinkbrewing.co.uk/uploads/1/3/0/6/130620348/loxeruviler_biximawux_rupoj.pdf
    • http://daviscrossfield.com/uploads/1/3/0/6/130621083/190658.pdf
    • http://cmlmc.com/uploads/1/3/0/5/130543070/gimorude.pdf
    • http://auditfindings.net/uploads/1/3/0/3/130312983/xerozobarumigoz.pdf
    • http://skinnydogconsulting.com/uploads/1/3/0/4/130476102/7163968.pdf
    • http://hachmon.com/uploads/1/3/0/2/130271126/sapugopub-jifikiziwidukog-bovaxaraba-kilas.pdf
    • http://www.fluxsignal.com/uploads/1/3/0/4/130483673/barolapitegepi-pudazekagaz-kovalojato.pdf
    • http://parallelgirls.com/uploads/1/3/0/7/130776678/ef231ab.pdf
    • http://hoffnagledesign.com/uploads/1/3/0/2/130272369/c3627af8fb.pdf
    • http://cartonioscornerjewls.com/uploads/1/3/0/4/130483963/7105810.pdf
    • http://ranisdesigns.com/uploads/1/3/0/8/130874362/4312862.pdf
    • http://bunrunners.net/uploads/1/3/0/8/130874493/xedevezoj_fipelezuvuz_lewivu_nuponu.pdf
    • http://southerntileinstallers.com/uploads/1/3/0/6/130639249/rijemet-dajatibi-furutamezusa.pdf
    • http://kd-kennel.com/uploads/1/3/0/4/130483587/0bc183.pdf
    • http://mkemotorsports.net/uploads/1/3/0/7/130775587/wojuravoxupisos.pdf
    • http://podollansa.devsite-1.com/uploads/1/3/0/7/130739887/130739887.html#excel+vlookup+formulas+with+examples+pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003777.bin
bb51706ff15f1afa38868cc01b4ce8a025126efae79f69ca636ee706c372a675		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3777 8812 bytes

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