Malicious PDF — malware analysis report

Static analysis result for SHA-256 210431058d0778d8…

MALICIOUS

PDF

30.0 KB Authoring application: Soda PDF
MD5: dfce1223a21b087c280c47bdc6ffc7fc SHA-1: 724097d68b59760b73aa0f8e925d39246fcf1b7b SHA-256: 210431058d0778d8f1eb6f189abe4e4d559dc2acd1a343e48b8c95a101050475
152 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links to external URLs, a technique commonly used for phishing or distributing further malware. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall' and the critical heuristic 'PDF_SEO_LINK_FARM' strongly indicate malicious intent. The document body, though partially corrupted, mentions 'Wasabi sushi menu pdf', suggesting a lure to disguise the malicious nature of the links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://habitsforhealthcoaching.com/uploads/1/3/0/5/130588957/pobakutimu.pdf
    • http://dateurbate.club/uploads/2020/01/27/20421c6.pdf
    • https://xugefefen.weebly.com/uploads/1/3/0/2/130271001/8f736e39e22d4c.pdf
    • http://marketingformula.de/uploads/1/3/0/2/130289481/jivazavik.pdf
    • http://zogisopim.st-kino.ru/uploads/2020/01/28/bukoguwiruzilidafo.pdf
    • https://guwefugi.weebly.com/uploads/1/3/0/2/130271171/luditamurox.pdf
    • http://michiganhomebuyingcenter.com/uploads/1/3/0/6/130639603/zonazu.pdf
    • http://lst-beton.ru/uploads/2020/01/28/36d1132.pdf
    • http://corona-towingservice.com/uploads/1/3/0/5/130539111/127818.pdf
    • http://mysearchrealestate.com/uploads/1/3/0/6/130639091/davaxodipu-xefuguwamad.pdf
    • http://sightlux.info/uploads/1/3/0/4/130477048/130477048.html#wasabi+sushi+menu+pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000011f5.bin
7504ef54c8c96149c488a5319b3e3ce1055d0a56418dec3a5f8b3eef7c4991e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11F5 8096 bytes

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