Malicious PDF — malware analysis report

Static analysis result for SHA-256 92bfa926e3c25e1a…

MALICIOUS

PDF

38.4 KB Authoring application: PDFBox
MD5: 885078bc3504a6efed7e43507736747c SHA-1: 5532a0a357a9ad1e01d13131928099768303aafe SHA-256: 92bfa926e3c25e1a90f125f89cf5d82daa8d04460225c7dc278b5ad6abfc8eba
148 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links pointing to external PDF files, a technique commonly used for SEO poisoning or phishing campaigns. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or malicious redirection intent. The document body also contains references to these external URLs, reinforcing the attack pattern.

Heuristics 5

  • 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
  • QR-code redirect lure medium SE_QR_LURE
    Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
  • 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://greenblackdress.com/uploads/1/3/0/3/130313854/dodepexolo.pdf
    • http://moodstruk.com/uploads/1/3/0/5/130588989/mapukekolefokima.pdf
    • http://cakeinaboxco.com/uploads/1/3/0/2/130287936/liraxeji-wopifemitus-bevajevuguwumop-zasakel.pdf
    • http://bodyworkbybarb.com/uploads/1/3/0/5/130539403/130539403.html#cen+tech+62120

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00000fc9.bin
ca15e5009b00668a78e2bee4db0eb973902d3f25df5bb3ffc94fba5cfa4997b5		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFC9 8380 bytes

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