Malicious PDF — malware analysis report

Static analysis result for SHA-256 b8aa03942d22a094…

MALICIOUS

PDF

38.2 KB Authoring application: ImageMagick
MD5: 9b227da09229007135cf2460bf7debf9 SHA-1: 969ec3cb0a353a84d99db1c37a4061c8aecdbd6e SHA-256: b8aa03942d22a094fa53c4a9ba1f182bb5454f673d5004d5eb7ac7fe74cd259a
128 Risk Score

Malware Insights

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

The PDF contains a link farm pointing to multiple external PDF files, indicating a phishing or malicious redirection attempt. The presence of a 'download button' heuristic further supports this, suggesting the document is designed to trick users into downloading further malicious content. ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' confirms the malicious nature.

Heuristics 4

  • 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
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://vehicleloanusa.com/uploads/1/3/0/2/130287847/mizerumamito.pdf
    • http://fabokajenu.tkantares.ru/uploads/2020/01/28/lepopaw_wivajuz_fubifusapa.pdf
    • http://leaguecitytreeservice.com/uploads/1/3/0/5/130539886/ab4e5.pdf
    • http://michaeljamesvocals.com/uploads/1/3/0/4/130483443/130483443.html#everybody%27s+guide+to+homeopathic+med

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000107e.bin
262d2258dedb082dac472e305b626b994674f46447afd636101c596872495997		 pdf-font-stream PDF embedded font (sfnt) at offset 0x107E 9924 bytes

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