Malicious PDF — malware analysis report

Static analysis result for SHA-256 320b0284f661ecf8…

MALICIOUS

PDF

36.7 KB Authoring application: Pdftk First seen: 2020-09-24
MD5: 92fb660542c63dcf0c71adafa9bd6432 SHA-1: eac19bf38756c87aa84a0a64e7755ac93669241f SHA-256: 320b0284f661ecf81b9196a3f6cca0b332afae8caa4bb8de4b561b301ca1715b
152 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, as detected by the PDF_SEO_LINK_FARM heuristic. These links point to various domains, all hosting PDF files with similar URL structures. This indicates a coordinated effort to distribute content, likely malicious, through a link farm. The ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports a phishing or malicious distribution intent. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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 http://mrncleaningservicescom.com/uploads/1/3/0/2/130289172/jozarunoxubomezudipa.pdf In PDF document text
    • http://www.chrisferland.com/uploads/1/3/0/5/130541465/8701176.pdfIn PDF document text
    • http://travelingnurses1.com/uploads/1/3/0/5/130551794/wipuverabibos_tofupupepafix.pdfIn PDF document text
    • http://capitolaproduce.com/uploads/1/3/0/7/130775424/beludilovugi_nafezesub_maziludifepez_rumafug.pdfIn PDF document text
    • http://tatertotatthechase.com/uploads/1/3/0/6/130639380/3507138.pdfIn PDF document text
    • http://gotmonks.com/uploads/1/3/0/6/130621264/6352319.pdfIn PDF document text
    • http://insearchforbeauty.com/uploads/1/3/0/4/130483043/b2b6c6d4.pdfIn PDF document text
    • http://criminalsyndicateband.com/uploads/1/3/0/3/130379928/6357995.pdfIn PDF document text
    • http://001radio.com/uploads/1/3/0/7/130775558/losopifuzukasixo.pdfIn PDF document text
    • http://petsaver.net/uploads/1/3/0/2/130287866/1fb8f4db607.pdfIn PDF document text
    • http://ccamsolutions.com/uploads/1/3/0/6/130639744/1420490.pdfIn PDF document text
    • http://trinitycastle.com/uploads/1/3/0/6/130620263/9154063.pdfIn PDF document text
    • http://mslangseportfolio.org/uploads/1/3/0/3/130323384/fipuwibonawilogevebi.pdfIn PDF document text
    • http://terapiaregresiva.org/uploads/1/3/0/4/130435978/1841be00d65e3cd.pdfIn PDF document text
    • http://logcottage4rent.com/uploads/1/3/0/2/130272587/wagokogusipetakevel.pdfIn PDF document text
    • http://patriziocontemporary.com/uploads/1/3/0/3/130323836/349fae4216e8f10.pdfIn PDF document text
    • http://stokesed508webpage.com/uploads/1/3/0/7/130739519/130739519.html#reducir+tama%C3%B1o+pdf+a+2mbIn PDF document text

Related samples 2

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_off0000317f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x317F 9264 bytes
SHA-256: 4456f926da7e2b418bbf18c926a1c7590fb9e38c66cd3155d884b0991fcbbbd1

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