Malicious PDF — malware analysis report

Static analysis result for SHA-256 136c531ccd0dc020…

MALICIOUS

PDF

39.1 KB Authoring application: Scribus
MD5: c064db0453b81190b0029ca1bbf517b4 SHA-1: abc2f7a8244ba70329e9d6c47e977a5794b5de5f SHA-256: 136c531ccd0dc020eed5334475d4e511baf7d4e36b5986b1214353f458b9ed3d
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a large number of external links, many of which point to other PDF files, indicating a link farm designed for SEO manipulation or to distribute further malicious content. The ClamAV detection and ML classifier strongly suggest malicious intent, likely related to phishing or malware distribution. The embedded URLs are the primary indicators of compromise, likely serving as entry points to malicious content.

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://holochainers.com/uploads/1/3/0/6/130621480/lojafokej.pdf
    • http://morocco-desert-sahara-tours.com/uploads/1/3/0/4/130488539/a02bced6703.pdf
    • http://turpinenterprises.com/uploads/1/3/0/3/130313429/vukibasijiraluvonone.pdf
    • http://luzutimut.fastkid.info/uploads/2020/01/28/446361e573a410.pdf
    • http://societeimperiale.com/uploads/1/3/0/4/130491932/rezedoruvarif.pdf
    • http://reikijan.com/uploads/1/3/0/5/130551505/d677feeddec15d1.pdf
    • http://meridenoilcompany.com/uploads/1/3/0/5/130543052/lodidawaditufazix.pdf
    • http://artpassion.store/uploads/1/3/0/4/130488371/6486178.pdf
    • http://stayhererentals.com/uploads/1/3/0/4/130436337/zagabugamevu_laxolodu.pdf
    • http://nycasianescortscall.com/uploads/1/3/0/3/130313090/3575668.pdf
    • http://bartolomeilaw.com/uploads/1/3/0/4/130488345/130488345.html#good+exercises+for+groin+strain

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001255.bin
f32e9468a093740a042e95268a658430620dc270546629962291b22afd0074e4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1255 8008 bytes

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