Malicious PDF — malware analysis report

Static analysis result for SHA-256 89b8f08d1eb2edf9…

MALICIOUS

PDF

73.4 KB Authoring application: Karbon
MD5: dbdd046c2f3f3ab540189ef3cde6bd81 SHA-1: e13b152a38943b154c6d61e5d1454850e85b7d8c SHA-256: 89b8f08d1eb2edf9c2c5ed8bdfb1eb6f7a54d452787487f7ecb52ed72687e4c1
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF was flagged by ClamAV as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and a machine learning classifier gave a high malicious score. The critical heuristic 'PDF_SEO_LINK_FARM' indicates the presence of numerous external links, with the first being http://soloforsenate.com/uploads/1/3/0/6/130604950/tuvilugobi.pdf. This suggests the document is part of a phishing or SEO manipulation scheme, likely directing users to malicious content hosted on these external domains.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9962

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://soloforsenate.com/uploads/1/3/0/6/130604950/tuvilugobi.pdf
    • http://mountainhighs.net/uploads/1/3/0/5/130588567/4858432.pdf
    • http://jerremyholland.net/uploads/1/3/0/8/130814676/5a0090447a.pdf
    • http://livingthepondlife.org/uploads/1/3/0/5/130590233/9717a91fbd791d.pdf
    • http://michaudwellness.com/uploads/1/3/0/8/130813701/130813701.html#the+principle+of+flow+cytometry+is+based+on+quizlet

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000010f0.bin
beddfaa381bf673bcebe044c80002b6117d4879b295c60c698414013e44f688e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10F0 8428 bytes
font_01_sfnt_off0000d0ab.bin
96a3ed2309478219143b47172ed06ca5a672a5b2a4fe260e56e8bea1ff9790ab		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD0AB 2988 bytes
font_02_sfnt_off0000da8b.bin
61ca593122bdf9f8d2de89784c713a2b278bdd5b054eff5a59c50fd3ef05b3a5		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDA8B 16148 bytes

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