Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb94e2e61527900c…

MALICIOUS

PDF

37.6 KB Authoring application: SWFTools
MD5: c2993f16f922b915814aa6b2b62c9db7 SHA-1: ac9e8c52e278c382982bf960ff09d5ba15aea0d6 SHA-256: eb94e2e61527900c45b65108b65d93fa8ed4d5e75fa9e6eebd0894b7b04288df
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. The ClamAV detection and ML classifier strongly indicate maliciousness, specifically classifying it as phishing-related. The primary attack pattern involves directing users to a link farm, likely for SEO manipulation or to serve malicious content. No scripts were extracted from this sample, limiting the ability to determine specific payload delivery mechanisms.

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://wer4jesus.com/uploads/1/3/0/5/130589400/wokonetulawuvexuzog.pdf
    • https://xevolarul.weebly.com/uploads/1/3/0/5/130589243/1669555.pdf
    • http://nathanielhinton.com/uploads/1/3/0/3/130313790/7127105.pdf
    • http://nightbeachpearls.com/uploads/1/3/0/2/130271043/6461000.pdf
    • http://dollartank.net/uploads/1/3/0/4/130477193/komojinokedoju.pdf
    • http://97litefm.com/uploads/1/3/0/5/130540017/b5879e186556f.pdf
    • http://coltsound.com/uploads/1/3/0/5/130551387/fafonasinuxim.pdf
    • http://abarakatonline.com/uploads/1/3/0/4/130483868/1685003.pdf
    • http://cocoonbyrk.com/uploads/1/3/0/5/130590123/3642cb2fe8c43.pdf
    • http://tarar.shegaoncoaching.in/uploads/2020/01/28/098e1ac.pdf
    • http://nus.region-26.ru/uploads/2020/01/28/tizagiban.pdf
    • http://kex.pp-offer.xyz/uploads/2020/01/27/rigewozovax.pdf
    • http://drvsmusicclasses.com/uploads/1/3/0/5/130550966/rofefekotazo.pdf
    • http://bobodigitalmarketing.com/uploads/1/3/0/5/130588272/3240880.pdf
    • http://cyclebavaria.com/uploads/1/3/0/6/130605168/130605168.html#apostles+creed+in+latin+audio

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001388.bin
043dbebb97a24aa8d5f36ee1105407a4348ed723f9b982c2bd201112fb74eef9
pdf-font-stream PDF embedded font (sfnt) at offset 0x1388 9024 bytes