Malicious PDF — malware analysis report

Static analysis result for SHA-256 3a978df17edb25bd…

MALICIOUS

PDF

39.9 KB Authoring application: pdf-parser
MD5: 616935674f25a4b245782fda50ac0a94 SHA-1: 36308b4faac2e28aec665d80847379a9ad05f6fb SHA-256: 3a978df17edb25bd641bb7790279147e9fe273472e5ee06b60e7d7bfdcec8d46
120 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various domains. The document body text, though heavily obfuscated, contains references to a movie title and includes several of these external URLs. This suggests a phishing or malicious redirection scheme, where users are tricked into clicking links under the guise of finding content. The ClamAV detection further supports its malicious nature.

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://beamacademy.org/uploads/1/3/0/7/130775626/balupogeg_jimevexekeg_jebanefifox_tesotuwadu.pdf
    • http://shopmindfulminerals.com/uploads/1/3/0/2/130291358/buxepu_zivaxojakuje.pdf
    • http://puertoricoweddingphoto.com/uploads/1/3/0/5/130590357/4034b8c.pdf
    • http://drjamesworling.net/uploads/1/3/0/6/130604105/4075431.pdf
    • http://latterdayideas.com/uploads/1/3/0/6/130620708/tulomidu-jimekawusutez.pdf
    • http://pameladirnberger.com/uploads/1/3/0/5/130588678/130588678.html#brahman+naman+full+movie++480p

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001131.bin
5c38eb5f81cfb90ea78982275d3dd4392a7875251c271f29f260cfe6ac6e8f4b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1131 8384 bytes
font_01_sfnt_off000053de.bin
b6ee667f81e0c116fa796fd7fb0064e2c158f717dcb4bbd29ba118e50b0e64e5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x53DE 16460 bytes

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