Malicious PDF — malware analysis report

Static analysis result for SHA-256 30bfb77cae13e982…

MALICIOUS

PDF

35.8 KB Authoring application: Serif PagePlus First seen: 2020-09-04
MD5: 7731bcd2d5906c5395b8a39ad6c9415d SHA-1: 667316b75fc4c3b172873c6cefcfdf379b2238de SHA-256: 30bfb77cae13e982044912fc32050ae8dfcf583ca5f8e67f7ed454963d63b7f8
192 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded URLs, identified as a link farm, with the primary domain being nathallybastos.com. This technique is commonly used to distribute malicious payloads or redirect users to phishing sites. The ClamAV detection of 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports the malicious nature of this file. No scripts were extracted from this sample, limiting the analysis of specific execution behaviors.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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://nathallybastos.com/uploads/1/3/0/5/130590777/b5c67def1.pdf In PDF document text
    • http://www.eplpna.com/uploads/1/3/0/6/130605432/676379.pdfIn PDF document text
    • http://dcexploration.org/uploads/1/3/0/5/130589420/8946585.pdfIn PDF document text
    • http://hostmaster.protectivebehavioursconsortium.co.uk/uploads/1/3/0/5/130550985/791621.pdfIn PDF document text
    • http://withoutpockets.com/uploads/1/3/0/5/130551882/serosixaxusepum.pdfIn PDF document text
    • http://nice-priz.site/uploads/1/3/0/2/130289663/5817706.pdfIn PDF document text
    • http://webdisk.filmityourself.co.uk/uploads/1/3/0/4/130483318/bopidiw-kujakutokepij-lufemitoxavedo.pdfIn PDF document text
    • http://miguelsanomovie.com/uploads/1/3/0/7/130739938/30456f85fe59.pdfIn PDF document text
    • http://bgconseilsformations.com/uploads/1/3/0/3/130324203/9203678.pdfIn PDF document text
    • http://plainenglishfordoctors.com/uploads/1/3/0/5/130588618/6ce157d7af51ead.pdfIn PDF document text
    • http://ainons.com/uploads/1/3/0/5/130590374/b9c303257c6.pdfIn PDF document text
    • http://www.burracing.com/uploads/1/3/0/5/130541346/130541346.html#caves+ielts+reading+answers+keyIn PDF document text

Related samples 4

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000034a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x34A6 8044 bytes
SHA-256: d124e5ccbefa1f5389153a07301becd60454f4c356156479df2b2dc6484c32ed

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