Malicious PDF — malware analysis report

Static analysis result for SHA-256 ef774107402286a1…

MALICIOUS

PDF

43.7 KB Authoring application: Adobe PDF Library 9.0
MD5: 24e31906c25768926bcadefa557163d2 SHA-1: 3213324586f41de1df1668fdfb1f6a93cbf3688d SHA-256: ef774107402286a1bbefc01ee35b926cbf3dc6d7d386ca3e721716cbea39b891
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of external links, as indicated by the PDF_SEO_LINK_FARM heuristic. The ClamAV detection and ML classifier also strongly suggest malicious intent. The embedded URLs point to a network of PDF files hosted on various domains, suggesting a coordinated effort to redirect users. The document body contains irrelevant text and URLs, further supporting a lure-based attack.

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://deannaheon.com/uploads/1/3/0/6/130605273/mejijifok.pdf
    • http://patchcreativeunit.org/uploads/1/3/0/5/130551058/4fe680397.pdf
    • http://rhsimb.org/uploads/1/3/0/5/130590051/jedaw.pdf
    • http://thewateringcansupply.com/uploads/1/3/0/5/130538923/pafejovovipopo.pdf
    • http://mikeintucson.com/uploads/1/3/0/6/130620926/130620926.html#bhojpuri+gana+video+full+hd++2018

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00000fdb.bin
c6d7af15f86834b49cabe0b1b978884bfe064f7c53ac5c1c70b227e2d27e2fa5		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFDB 7864 bytes
font_01_sfnt_off00005c3e.bin
8cea9f45fa1510dab75018c121ea41681678526dd76812b3a12c772b96a312a9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C3E 11416 bytes

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