Malicious PDF — malware analysis report

Static analysis result for SHA-256 647e9d9bc794f06d…

MALICIOUS

PDF

41.1 KB Authoring application: SWFTools
MD5: a7dd833b9f6ed8de4e89458caeec9a21 SHA-1: 08816660150bda68f5864202b415c89905b66a95 SHA-256: 647e9d9bc794f06dd9071a3567c80de92334587071ff1c1f5a462e72e53db704
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs, identified as a link farm, which is a common technique for phishing or distributing further malware. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or malware distribution. No scripts were extracted, but the presence of numerous external links suggests the document's primary purpose is to redirect users to malicious content.

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://abrandex-design.com/uploads/1/3/0/2/130289775/7b25b360.pdf
    • http://cpanel.webdesignkelowna.com/uploads/1/3/0/7/130739401/7722852e185ac9f.pdf
    • http://3iconstructora.com/uploads/1/3/0/2/130272551/4543d1.pdf
    • http://internationalparksideproductsinc.com/uploads/1/3/0/8/130813730/mojenogox-nakalinegiziba-pufalenamunavi-fajid.pdf
    • http://pebbleandstonetextiles.com/uploads/1/3/0/7/130775982/1791566.pdf
    • http://elenafilip.com/uploads/1/3/0/3/130313378/8839350.pdf
    • http://www.cbdpowerbars.org/uploads/1/3/0/7/130740623/effb153690c115.pdf
    • http://kellkellokthreads.com/uploads/1/3/0/9/130968913/pejujojafugiwosuvug.pdf
    • http://www.radiobeats.in/uploads/1/3/0/5/130588548/477bfb.pdf
    • http://wpdogs.com/uploads/1/3/0/7/130776134/ccdd8e7d086097e.pdf
    • http://chinacrocodile.com/uploads/1/3/0/3/130313005/xulobinazafew.pdf
    • http://www.truelovemates.org/uploads/1/3/0/6/130603769/130603769.html#administrative+procedures+for+the+canadian+office+9th+edition+pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000480d.bin
f837c72d19c0bfaaf17a95a741e226f516deb9f93e7a32566b8f9abed8d159e5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x480D 8552 bytes

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