Malicious PDF — malware analysis report

Static analysis result for SHA-256 91d071844d8ac532…

MALICIOUS

PDF

37.1 KB Authoring application: OpenOffice Draw
MD5: 2723cdaaf2b7623051494cb5946e1d02 SHA-1: 8ebd228ea7fe975cc863d81bf424a3efe7271922 SHA-256: 91d071844d8ac5320e94dfd9fbbf6b87b375464ecbf506e175f997eacfb073e7
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded links to external PDF files hosted on various domains. This behavior is indicative of a link farm designed to distribute malicious content or conduct phishing attacks. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports the malicious classification. No scripts were extracted, limiting the analysis of specific execution techniques.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://soulscriticalpath.com/uploads/1/3/0/6/130604836/tiperoxanudiwox.pdf
    • http://karenjanewalker.net/uploads/1/3/0/2/130272330/1016767.pdf
    • http://fiw.lcmevents.com/uploads/2020/01/28/ff470.pdf
    • http://linkedthruleonard.com/uploads/1/3/0/4/130489220/sotasasisem_gupobivisimus_xudif_miwit.pdf
    • http://lottomagico.com/uploads/1/3/0/6/130639181/losedasobav_ronidopiwarufaf.pdf
    • http://dreaconti.com/uploads/1/3/0/3/130323341/dijifebimotorani.pdf
    • http://miami.momotombochocolatefactory.com/uploads/1/3/0/4/130476483/130476483.html#intellij+android+sdk+manager+not+working

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001151.bin
f76d08cb87a944358a74a5ed33774709fac71236ff066c49bf775e849427f537		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1151 7836 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.