Malicious PDF — malware analysis report

Static analysis result for SHA-256 54fff69792190e4e…

MALICIOUS

PDF

87.7 KB Authoring application: LibreOffice Draw
MD5: 96fdd9d71e1dba9d4afcdeade871a7e6 SHA-1: 491c8f5099044a9469b8269acd1e78e0e03333ef SHA-256: 54fff69792190e4e91c1dd17cd093639d1cb0d62b41e19bff61770332c230067
150 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, a technique often used for SEO poisoning or to redirect users to malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent. The document body, though heavily obfuscated, appears to be a lure for downloading a movie theme song, which is then used to mask the true malicious nature of the embedded links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 3

  • 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.
  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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://daluze.siatyus.com/uploads/2020/01/27/rodixuk.pdf
    • http://boltonconsultinginc.com/uploads/1/3/0/5/130588502/kufevazenag.pdf
    • http://neku.vertoli.ru/uploads/2020/01/27/115574.pdf
    • http://olikx.xyz/uploads/2020/01/29/6347318.pdf
    • http://camelliacustoms.com/uploads/1/3/0/5/130590532/1053229.pdf
    • http://xevaxikusa.optomsahar.ru/uploads/2020/01/27/junozazelu.pdf
    • https://jipesidepuzuna.weebly.com/uploads/1/3/0/5/130590351/vovilipu-fupegafibuwupux-zojipibaxo.pdf
    • http://professionalslegalservice.com/uploads/1/3/0/5/130551319/ganidamopofugid_degodarade_gadapeb_safurim.pdf
    • http://pomu.masternode-sc.com/uploads/2020/01/27/b5674aed6080bd.pdf
    • http://lexupo.sloto-cash.ru/uploads/2020/01/27/a93a6094f9192.pdf
    • http://theleawoodfamilydentist.com/uploads/1/3/0/5/130543466/130543466.html#terminator+2+judgement+day+theme+song+mp3+download

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000013cb.bin
38e2e89fdf4535f0b1cbc541c363dfa6880224866b70ee8885a02e8424bbc1fd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13CB 9692 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.