Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ebef990eda6f36e…

MALICIOUS

PDF

48.3 KB Authoring application: GIMP First seen: 2020-09-24
MD5: f2f821dd9dc40e343aa5e086837c7eed SHA-1: e92874debe25405dd5783b91993ecf401467f61b SHA-256: 1ebef990eda6f36e61aa8e0bc14bcf27e0e38a88f0e6a06929d5cca8af6459c8
152 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links to external PDF files hosted on various domains, indicating a link farm or redirection strategy. ClamAV detected this as Pdf.Phishing.TtraffRobotInstall, and a machine learning classifier also flagged it as malicious with high confidence. The primary attack pattern involves leveraging these links, likely to distribute phishing content or manipulate search engine results.

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://www.archersoftball.org/uploads/1/3/0/7/130738973/zexobetosowo_kepewetipowo.pdf In PDF document text
    • http://dididothat.net/uploads/1/3/0/6/130620509/remoxagux.pdfIn PDF document text
    • http://barbellvillains.com/uploads/1/3/0/5/130545021/4858051.pdfIn PDF document text
    • http://blueshoreinvestmentgroup.com/uploads/1/3/0/5/130551423/nexonaregadipat-nunodamufifel-zevivop.pdfIn PDF document text
    • http://myrole.io/uploads/1/3/0/6/130639821/47579770.pdfIn PDF document text
    • http://msbr.ca/uploads/1/3/0/6/130620279/29b4f0f2e0c.pdfIn PDF document text
    • http://mountainofgod.org/uploads/1/3/0/6/130621349/ef987eecf9f2.pdfIn PDF document text
    • http://millerblade.com/uploads/1/3/0/6/130639396/nimixa.pdfIn PDF document text
    • http://ursneakers.com/uploads/1/3/0/5/130539494/5382367.pdfIn PDF document text
    • http://sheriffproperties.com/uploads/1/3/0/7/130776786/c4aba67235f4.pdfIn PDF document text
    • http://dbprlawyer.com/uploads/1/3/0/7/130739268/9293981.pdfIn PDF document text
    • http://replayacademy.net/uploads/1/3/0/5/130539340/regabisaw-jarop.pdfIn PDF document text
    • http://hostmaster.cirugiatoracicarobotica.es/uploads/1/3/0/7/130739113/643e12f32b.pdfIn PDF document text
    • http://www.weddingdressma.com/uploads/1/3/0/6/130622051/4495919.pdfIn PDF document text
    • http://www.designergina.com/uploads/1/3/0/6/130620314/130620314.html#definition+of+laissez-faire+leadership+in+managementIn PDF document text

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_off0000635e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x635E 8512 bytes
SHA-256: 8e2386a4fa6724164d311c66526db83a3e62960da88c747908ff8639ef605d09

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