Malicious PDF — malware analysis report

Static analysis result for SHA-256 906bf108a11a88ed…

MALICIOUS

PDF

51.0 KB Authoring application: GIMP
MD5: 272c106c2057848534ea057b4d8ea09a SHA-1: 6f3a3d0a7a0fcee1dccf51a78049a5606adfe918 SHA-256: 906bf108a11a88ed5a7fc5cb92412bc6c690136b2979821e32aeed47e658c82b
152 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics as malicious, including a critical finding for a PDF link farm. The document contains a large number of embedded URLs pointing to external PDF files, suggesting a phishing or SEO manipulation campaign. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing intent.

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://bestresult.space/uploads/1/3/0/2/130289610/mapixaxelijavenizeg.pdf
    • http://beanbagswim.com/uploads/1/3/0/6/130639863/tatej-gosumodex-kenuwomuwa.pdf
    • http://creapoponline.com/uploads/1/3/0/6/130605517/mudusugidedi-ziwopodixu-wajanog-tegobagaw.pdf
    • http://stubblefieldhoa.com/uploads/1/3/0/3/130379466/toravukeduxi_wusebexitixowi_magoxizebujop.pdf
    • http://abogadospluralistas.org/uploads/1/3/0/6/130604034/devikozad.pdf
    • http://happyvids.com/uploads/1/3/0/2/130287939/fekejifadodakolapex.pdf
    • http://toaishow.org/uploads/1/3/0/7/130776037/825902d.pdf
    • http://fulot.centrprava40.ru/uploads/2020/01/28/8747333.pdf
    • http://pisteciclabili.net/uploads/1/3/0/4/130488688/xanofuzopofalakuv.pdf
    • http://mynaturalhairspa.com/uploads/1/3/0/2/130291499/130291499.html#management+and+treatment+of+chronic+kidney+disease+in+cats

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00000fa6.bin
29af79af86a51a8262a52c1e9883a7a113df0f340dd7ac41424d5743ec2babc9		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFA6 8444 bytes

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