Malicious PDF — malware analysis report

Static analysis result for SHA-256 82015bc2996b169c…

MALICIOUS

PDF

40.8 KB Authoring application: Adobe PDF Library 9.0 First seen: 2020-09-24
MD5: fd79817ffe6b9cbe7b48c57fbcecac8b SHA-1: b17af3eafa9e5149ea8206ff1461bc1a475ce81e SHA-256: 82015bc2996b169cfef24a3bcf587720daea74f16e8ded3eedf7d96cc6c29dc6
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded external links, as indicated by the PDF_SEO_LINK_FARM heuristic. The ClamAV detection and ML classifier also strongly suggest malicious intent, specifically identified as 'Pdf.Phishing.TtraffRobotInstall-7605656-0'. The embedded URLs likely lead to further malicious content or phishing pages, and the document body is heavily obfuscated, preventing analysis of its direct content.

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://novanage.gromovfood.ru/uploads/2020/01/28/4c3112.pdf In PDF document text
    • http://nn-mockup.weebly.com/uploads/1/3/0/4/130488476/1683116.pdfIn PDF document text
    • http://polksoccerfund.com/uploads/1/3/0/2/130274263/zifulodopamix.pdfIn PDF document text
    • http://ptxsynchro.org/uploads/1/3/0/5/130551487/vivajis.pdfIn PDF document text
    • http://zywavelawsuit.com/uploads/1/3/0/2/130289334/1668552.pdfIn PDF document text
    • http://rqacommittees.com/uploads/1/3/0/6/130639675/kozenodowe_fexoru_ginevonaliva.pdfIn PDF document text
    • http://neilestrick.com/uploads/1/3/0/6/130621542/1717860.pdfIn PDF document text
    • http://joyfullnight.com/uploads/1/3/0/5/130544043/lofigav.pdfIn PDF document text
    • http://embroideryafterdark.shop/uploads/1/3/0/5/130589339/jujorojatopid-numimali-wared-jagefep.pdfIn PDF document text
    • http://hnccleaning.co.nz/uploads/1/3/0/6/130620265/1894358.pdfIn PDF document text
    • http://amaarchitectsllc.com/uploads/1/3/0/4/130483989/zazenowoze_zizegul.pdfIn PDF document text
    • http://katshea.net/uploads/1/3/0/4/130435826/7459192.pdfIn PDF document text
    • http://arcadiagardensllclandscapinganddesign.com/uploads/1/3/0/8/130813548/130813548.html#recettore+muscarinico+m4In PDF document text
    • http://fontawesome.iohttp://fontawesome.io/license/In PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000014a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14A5 8544 bytes
SHA-256: e3f0b084a83ca8d982ecf0bc4dd1671d83767d7f3e85ae950e9766d2bf891892
font_01_sfnt_off000064fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64FD 1740 bytes
SHA-256: 721152ce7f7cb7438976e4e66db7bf061173aa22a859e25ab7d6d2d4b5367394