Malicious PDF — malware analysis report

Static analysis result for SHA-256 aee1aec672f86911…

MALICIOUS

PDF

38.0 KB Authoring application: Pdftk
MD5: 9b48ad49b03c6cc21b053fccdaf15f7a SHA-1: 93426bd098e570a5936ca72a887bdffa900b9da2 SHA-256: aee1aec672f869119c9ce08a0daf5ae8ae6669207a085c04b28dedb1da4d74c8
150 Risk Score

Malware Insights

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

The PDF document was flagged by multiple heuristics, including a critical finding for a link farm and ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0. The presence of numerous embedded URLs, primarily pointing to similarly structured PDF files on various domains, strongly suggests a phishing or redirection campaign. The document body itself is heavily obfuscated and does not provide clear textual lures.

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://mychamberofsecretss.com/uploads/1/3/0/8/130873908/wulomar-ropogokezojawo-mumowuz-sokika.pdf
    • http://miznora.com/uploads/1/3/0/6/130639665/2579823.pdf
    • http://garagestorageadvice.com/uploads/1/3/0/5/130590698/9708915.pdf
    • http://maagtech.com/uploads/1/3/0/6/130605335/godarukivexojuvese.pdf
    • http://remote.supply/uploads/1/3/0/5/130588596/fawigiwuvi-vinaz-xipifeguvetili-jobagavusom.pdf
    • http://aesthetiderm.com/uploads/1/3/0/5/130589423/9962759.pdf
    • http://theprincipalentrepreneur.com/uploads/1/3/0/7/130740183/f72ce4a2aaa8f47.pdf
    • http://minkscleaning.com/uploads/1/3/0/6/130621279/4023139.pdf
    • http://dcexploration.org/uploads/1/3/0/5/130551720/nitij.pdf
    • http://findyourtribe.com.au/uploads/1/3/0/4/130489696/5084960.pdf
    • http://koditpaperflex.com/uploads/1/3/0/2/130272384/pobojiso.pdf
    • http://st3vy.bpmtc.com/uploads/1/3/0/4/130483741/130483741.html#acidosis+and+alkalosis+questions

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003bd1.bin
6428bea784dd5293daa6f10cc8b32093b4c61ea38d4438568cd323c2307d0e9d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3BD1 8716 bytes

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