Malicious PDF — malware analysis report

Static analysis result for SHA-256 30706b2c177b910e…

MALICIOUS

PDF

37.3 KB Authoring application: Soda PDF First seen: 2020-09-24
MD5: c1ce17051c1715510137ffad0ed657dd SHA-1: f5e60a764cabdfa42e0cd5bb1230540c6d0028dc SHA-256: 30706b2c177b910e58fdfa52ae65d6ace77ae46b259f635ce79540591f31db1b
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious File

The PDF contains a large number of external links, many of which point to other PDF files, suggesting a link farm for SEO purposes. The ClamAV detection and ML classifier strongly indicate malicious intent, specifically identified as phishing and traffic redirection. The document body, though truncated, discusses transistors, likely as a lure to disguise the malicious nature of the embedded links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://mypartypro.net/uploads/1/3/0/6/130639867/xuparunul.pdf In PDF document text
    • http://chichayron.com/uploads/1/3/0/6/130604108/9289844.pdfIn PDF document text
    • http://saintpaulpainting.com/uploads/1/3/0/3/130379368/9567271.pdfIn PDF document text
    • http://hagansprincin.com/uploads/1/3/0/5/130550949/kawevum-jafonoxuka-maduzimamug-vuxabitelewewaf.pdfIn PDF document text
    • http://creativeadsolution.com/uploads/1/3/0/3/130379105/3339528.pdfIn PDF document text
    • http://speakenglishnaturally.me/uploads/1/3/0/5/130588328/xosevadetuxeg.pdfIn PDF document text
    • http://houseofspiritualityhos.com/uploads/1/3/0/7/130739596/refunivopiziwapiw.pdfIn PDF document text
    • http://acousticat.com/uploads/1/3/0/7/130739828/0d005d6b337d7.pdfIn PDF document text
    • http://geographie-structurale.org/uploads/1/3/0/2/130287930/vubuluweluzajin.pdfIn PDF document text
    • http://www.karlabrittmakeup.com/uploads/1/3/0/6/130620819/1227453.pdfIn PDF document text
    • http://vps17.pleasingfood.com/uploads/1/3/0/7/130776118/130776118.html#npn+transistor+acting+as+a+switchIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://fedoraproject.org/wiki/Licensing/LiberationFontLicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002fc7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FC7 2828 bytes
SHA-256: cfb3357b20fb01955c1e4a0ed568c791e3a97db8f0fbaa18432a833eaa1d19da
font_01_sfnt_off00003c2b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3C2B 7764 bytes
SHA-256: 11be10c0e59310d1a6e1645d675cf632868a78076bd8539d13897afe15965b12