Malicious PDF — malware analysis report

Static analysis result for SHA-256 15bb3057554479e5…

MALICIOUS

PDF

30.6 KB Authoring application: OpenOffice.org First seen: 2020-09-24
MD5: 64f102bc16b8b663e644966048e373c3 SHA-1: 37770e1501926b6fe6e3cbf4910e58e1094bd741 SHA-256: 15bb3057554479e58cfed523182b3b148ceff64cc496a8803f6e2ffa3b3b82f9
152 Risk Score

Malware Insights

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

The PDF contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. ClamAV also detected this as Pdf.Phishing.TtraffRobotInstall, indicating a phishing or malicious redirection attempt. The embedded links likely lead to further malicious content or phishing pages.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 3

  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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.
  • 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 https://gatupesanunel.weebly.com/uploads/1/3/0/3/130323100/pexovuvu_bumuvezikirawo_wodemi_mofuw.pdf In PDF document text
    • http://jurinaphotography.com/uploads/1/3/0/3/130313194/6159070.pdfIn PDF document text
    • https://fadapulevijesid.weebly.com/uploads/1/3/0/6/130604203/wasid_lusabikej_pedoluzodawa.pdfIn PDF document text
    • http://charlidrawz.com/uploads/1/3/0/5/130538946/tagulavujosig.pdfIn PDF document text
    • http://wesmarconstructiongroup.com/uploads/1/3/0/5/130590059/kusulir_rerod.pdfIn PDF document text
    • http://morrisseauartist.com/uploads/1/3/0/5/130550768/kofaber-vonasiratow.pdfIn PDF document text
    • http://universeoftoronto.com/uploads/1/3/0/5/130541308/nuvimog_dipazeke_jemaletanatit_mawiki.pdfIn PDF document text
    • http://kofo.meessays.info/uploads/2020/01/28/b83f73200ebf.pdfIn PDF document text
    • http://misssupremepurityqueen.com/uploads/1/3/0/6/130605351/130605351.html#pubmed+articles+pdfIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000011f1.bin
8e6fb61a5467e33c7342b65dc8a762113fbde7efde819337d4064116a03d3919		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11F1 8268 bytes

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