Malicious PDF — malware analysis report

Static analysis result for SHA-256 31b08408e55436dd…

MALICIOUS

PDF

35.5 KB Authoring application: PDFBox
MD5: f9543d73a5660579c96a50b93127de70 SHA-1: 564ce629997806324e74fbd97c87162a20d1acb0 SHA-256: 31b08408e55436ddbc9341ca609cbea93ff7705c68ee5da103ffe6ef131dc35b
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF was flagged by multiple critical heuristics, including ClamAV and a machine learning classifier, indicating malicious intent. The PDF_SEO_LINK_FARM heuristic specifically identified a large number of external links pointing to various domains, suggesting a link farm or phishing campaign. The embedded URLs are likely used to redirect users to malicious sites. No scripts were extracted from this sample.

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://mylibruldad.com/uploads/1/3/0/2/130289723/zugukabiza.pdf
    • http://desrochersculpturestudio.com/uploads/1/3/0/5/130538880/4810838.pdf
    • http://binarybitteam.com/uploads/1/3/0/2/130271131/nosad.pdf
    • http://cheaphauntedhouses.com/uploads/1/3/0/3/130313670/temaranotaf_xeriruwoniw.pdf
    • http://avphospitals.org/uploads/1/3/0/3/130313192/namowipax_gurapitesoxin.pdf
    • http://iveyvoicestudio.com/uploads/1/3/0/2/130288458/1550975.pdf
    • http://honeyee.us/uploads/1/3/0/2/130287847/7282176.pdf
    • http://www.trdogwalking.com/uploads/1/3/0/7/130776739/7470902.pdf
    • http://retailshrinksolutions.com/uploads/1/3/0/5/130539840/witufi-waposufozitim.pdf
    • http://simyasuaritma.com/uploads/1/3/0/4/130483087/7319264.pdf
    • http://nagira-casino.com/uploads/1/3/0/2/130287401/vepop-mekugezenewejoz.pdf
    • http://adentamalaysia.com/uploads/1/3/0/5/130539465/e3f0e6c9bde1.pdf
    • http://duke-consult.com/uploads/1/3/0/4/130435726/sotagi.pdf
    • http://askwiseguys.com/uploads/1/3/0/4/130435734/46635562e5a449.pdf
    • http://limo-austin.net/uploads/1/3/0/6/130621850/73562955.pdf
    • http://pegma-scaffolding.com.au/uploads/1/3/0/2/130271255/056cab0162e0b7.pdf
    • http://host161.carmichaelnl.com/uploads/1/3/0/5/130588678/130588678.html#authentic+geekvape+aegis+x+200w

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002ecf.bin
a1a21a59100577ad8145caa9b65ca90354828160493d74b59d16cc17e76faa3c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2ECF 7972 bytes

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