Malicious PDF — malware analysis report

Static analysis result for SHA-256 be859e30ffeaeb6f…

MALICIOUS

PDF

36.0 KB Authoring application: Scribus
MD5: a561c2060db417b346c1bcfa76c26f6a SHA-1: 50ac1c38c09f0279f352fcd22e55af96d5bc93d0 SHA-256: be859e30ffeaeb6f24276da3dc1290103c519a2c9ef71d4f6160d50b5f4eaccc
150 Risk Score

Malware Insights

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

The PDF contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to other PDF files. This suggests a link farm or a distribution mechanism for further malicious content. The ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports a malicious intent, likely related to phishing or traffic redirection. The document body content is heavily obfuscated and does not provide clear textual clues about 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://kmradvisers.com/uploads/1/3/0/3/130323717/novolubolugo.pdf
    • http://synergyassistllc.com/uploads/1/3/0/2/130270864/72c4901bef.pdf
    • http://theyscareme.com/uploads/1/3/0/6/130620863/ee16d2b4.pdf
    • http://desatascosterrassa.com/uploads/1/3/0/5/130546742/widoviwenadu-gorimosokazelu-betaxisat.pdf
    • http://catapultconsultants.com/uploads/1/3/0/7/130776499/2076763.pdf
    • http://breadandfreedom.net/uploads/1/3/0/6/130639074/dd7971b8a575.pdf
    • http://dalotyn.store/uploads/1/3/0/5/130588663/diwebu.pdf
    • http://tor.money/uploads/1/3/0/6/130639729/6184916.pdf
    • http://www.autonomouswriting.com/uploads/1/3/0/7/130775797/6016225.pdf
    • http://acheevo.com/uploads/1/3/0/2/130288320/185760.pdf
    • http://mommytobebox.com/uploads/1/3/0/4/130483052/4df83389.pdf
    • http://yourself-storage-units.com/uploads/1/3/0/6/130639105/45a3ed996b85d7.pdf
    • http://ryanhuff.net/uploads/1/3/0/7/130776032/7776261.pdf
    • http://whackyposts.com/uploads/1/3/0/5/130589006/249a0d39c8cd.pdf
    • http://1iea.brdge.org/uploads/1/3/0/7/130776162/130776162.html#arti+lagu+zayn+a+whole+new+world
    • http://tor.money/uploads/1/3/0/6/13

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003230.bin
1839f48d65b792d72e29edc3830bb49e1fe81edafd039b92254bbf57145cf4b0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3230 8208 bytes

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