Malicious PDF — malware analysis report

Static analysis result for SHA-256 391bc06279402e1c…

MALICIOUS

PDF

32.4 KB Authoring application: PDF Studio
MD5: 16a11f0a158cec62f682081fd8d3d5bf SHA-1: 3c4529baeb1adeeec3c718cb330fffd38abede9d SHA-256: 391bc06279402e1c96c0ac94a2f135c0f06456d393d88bd2b86a1eef86639715
150 Risk Score

Malware Insights

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

The PDF contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. The ClamAV detection and ML classifier also indicate maliciousness. The embedded URLs suggest a phishing or malicious content distribution scheme, likely aiming to redirect users to harmful sites.

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://glider.store/uploads/1/3/0/4/130488295/bovujoxor-piwumeko.pdf
    • http://youandyournewborn.com/uploads/1/3/0/6/130620858/4848260.pdf
    • http://anewyoubeauty.co.nz/uploads/1/3/0/3/130313316/d5b6bad.pdf
    • http://davisenergymedicine.com/uploads/1/3/0/2/130291769/6429671.pdf
    • http://psyfit.net/uploads/1/3/0/4/130489367/sebezexokereb_libotiporuxur_susata.pdf
    • http://learnthebibleinayear.org/uploads/1/3/0/6/130604775/kevaf.pdf
    • http://www.stjohnsofolean.com/uploads/1/3/0/4/130477882/6479722.pdf
    • http://smartcapitaladvisors.com/uploads/1/3/0/6/130639836/5770724.pdf
    • http://www.midnight-owl-creations.com/uploads/1/3/0/5/130588601/2947411.pdf
    • http://mouthmud.com/uploads/1/3/0/6/130605204/xovesakekekeme.pdf
    • http://condex99.club/uploads/1/3/0/2/130291838/fopexetelu-bojalab-gejefunujekuf.pdf
    • http://annieshandmadesweets.com/uploads/1/3/0/6/130605115/rupitokugovux-faxikosodepimor-fizopuvemu-woxujame.pdf
    • http://carolynrim.com/uploads/1/3/0/2/130270895/temilewabebot-mubuxo.pdf
    • http://spectrumherniaclinic.com/uploads/1/3/0/5/130590261/130590261.html#map+of+africa+with+countries+black+and+white

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000249b.bin
2f62dc7c4622c888db6ec4f0edb842778ea3f5f649e91f5b121196c719e7b3a9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x249B 8100 bytes

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