Malicious PDF — malware analysis report

Static analysis result for SHA-256 85e6d5fd819cd56f…

MALICIOUS

PDF

34.6 KB Authoring application: pdf-parser First seen: 2020-09-04
MD5: e96991d8bdcb32383629402a84f4583a SHA-1: f28b7e454ca067b7019f843000cc138181ad2082 SHA-256: 85e6d5fd819cd56f13bacd36420d4778c03e3449772d0a25e72f1e11a4ced80c
152 Risk Score

Malware Insights

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

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 or a distribution mechanism for further malicious content. The ClamAV detection and ML classifier strongly suggest malicious intent, likely related to phishing or malware distribution.

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://webdisk.jaredmichaelsobotka.com/uploads/1/3/0/3/130323158/a5b211dd8.pdf In PDF document text
    • http://www.copaveltd.co.uk/uploads/1/3/0/7/130739034/5951722.pdfIn PDF document text
    • http://leftproject.org/uploads/1/3/0/2/130288757/b62769d.pdfIn PDF document text
    • http://amandacake.com/uploads/1/3/0/6/130621127/dapuri.pdfIn PDF document text
    • http://psykron.net/uploads/1/3/0/5/130590208/207be6b0b.pdfIn PDF document text
    • http://hyperdrivestudio.net/uploads/1/3/0/7/130776611/daguliteposa.pdfIn PDF document text
    • http://kemitinc.com/uploads/1/3/0/6/130604300/1dacb53e.pdfIn PDF document text
    • http://cartonioscornerjewls.com/uploads/1/3/0/7/130775328/mesunisobipapiximasu.pdfIn PDF document text
    • http://michealsdeckrepair.com/uploads/1/3/0/5/130551677/pibupatusepize.pdfIn PDF document text
    • http://www.sauerlandhypotheek.nl/uploads/1/3/0/4/130435906/67905c.pdfIn PDF document text
    • http://maisonskincare.com/uploads/1/3/0/7/130775001/lenuxo_tenig_jelutago_fawun.pdfIn PDF document text
    • http://jgrimmer.com/uploads/1/3/0/8/130814030/vamelaje.pdfIn PDF document text
    • http://u5wotw.bdgct.com/uploads/1/3/0/8/130813799/130813799.html#orbital+cellulitis+treatment+medscapeIn PDF document text
🗂 Part of campaign: bienchulas.com 4 samples

Related samples 1

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_off00002fd3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FD3 7736 bytes
SHA-256: 4363ddbb06eabb6badf3af8926004c25cd89d68038b1c19aa58830194742189e

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