Malicious PDF — malware analysis report

Static analysis result for SHA-256 63fd4b3ea336bf4f…

MALICIOUS

PDF

55.1 KB Authoring application: Solid Converter PDF
MD5: 5bd4abec2c48620a60dfd60b8943c4d3 SHA-1: 7c8e71a472a15fbe4a992c235fb075225fe87a25 SHA-256: 63fd4b3ea336bf4fd4d960e3e2a7d28ea80011ca0c73e52a92f08c0e7bc31035
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, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various PDF files on suspicious domains. ClamAV also detected this as Pdf.Phishing.TtraffRobotInstall, indicating a phishing or malicious redirection attempt. The embedded URLs are likely used to redirect the user to malicious content or download further payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://jafamul.topmusic.shop/uploads/2020/01/28/2668c73f.pdf
    • http://kapunix.newdex.xyz/uploads/2020/01/29/10f2b319a453.pdf
    • http://teachersofeg.com/uploads/1/3/0/5/130550841/8327a8527.pdf
    • http://zajasuf.sputnikbaikal.ru/uploads/2020/01/29/laxugivodusegiso.pdf
    • http://syxgems.net/uploads/1/3/0/4/130435710/jazoluxikakox-bobaforeribiros.pdf
    • http://awconstruction.net/uploads/1/3/0/6/130604775/tikuzopidage.pdf
    • https://kegepedejofux.weebly.com/uploads/1/3/0/2/130274319/50395176.pdf
    • http://vamufuga.confidentbusinesssuport.com/uploads/2020/01/29/5921984.pdf
    • http://loskuatro20decalifornia.com/uploads/1/3/0/5/130551230/130551230.html#ipad+pro+cnet
    • http://www.adobe.com/).Noto
    • http://www.google.com/get/noto/http://www.adobe.com/type/This
    • http://scripts.sil.org/OFLNoto

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000011b0.bin
de7668c66c2439e4f7f0cbc661aaa1897e6ffdd0ca34873da409faa3750b10f1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11B0 8336 bytes
font_01_sfnt_off00007d2d.bin
ae5423f037d6adf36d48e6540a2e44aadeb6ca13a747290f9cd24c7e292b3a8b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D2D 13216 bytes

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