Malicious PDF — malware analysis report

Static analysis result for SHA-256 864b89a85a40012e…

MALICIOUS

PDF

38.5 KB Authoring application: pdf-parser First seen: 2020-09-24
MD5: 57acbeb23f765198116c317c196af96b SHA-1: cb29d0302f27308b608e7b80ba1f62bb27e49363 SHA-256: 864b89a85a40012ee3dd49d710b4ecf8ceb1b9a58e2d83fde17d4378962a31b5
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, a technique often used for SEO manipulation or to distribute malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent, specifically identified as phishing. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it's designed to redirect users to potentially harmful sites.

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 https://jarofozizad.weebly.com/uploads/1/3/0/2/130272892/jibabudad.pdf In PDF document text
    • http://pani.begettest13.fun/uploads/2020/01/28/tafefanetesi-biworokem.pdfIn PDF document text
    • http://fiwefer.idealista-login.com/uploads/2020/01/28/degixenudez-seperemebex-tovinobid.pdfIn PDF document text
    • http://dugivuxo.visitbilyarsk.ru/uploads/2020/01/28/d7952.pdfIn PDF document text
    • http://vekakevila.kuhni07msc.icu/uploads/2020/01/28/kosewamok-ravuzagawel-sovulebuvavi-ninemewafuzadud.pdfIn PDF document text
    • https://kapedakit.weebly.com/uploads/1/3/0/2/130291939/4171567.pdfIn PDF document text
    • http://moderncountrydoctor.ca/uploads/1/3/0/6/130605149/3131266.pdfIn PDF document text
    • http://truthbeshonefilms.com/uploads/1/3/0/4/130483243/9481597.pdfIn PDF document text
    • http://splashsteamboat.com/uploads/1/3/0/6/130640208/d0208913cbc924.pdfIn PDF document text
    • http://basecamp-branding.com/uploads/1/3/0/6/130621893/sezisu.pdfIn PDF document text
    • http://nupelicanparty.org/uploads/1/3/0/6/130604671/130604671.html#perianal+abscess+caused+by+stressIn 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_off00001296.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1296 7760 bytes
SHA-256: 18390ab983e6d97eaf5e4f870ac2fdab39c90dc9a7596009f466529afa10a44a

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