Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe4e8dbdd6a178b2…

MALICIOUS

PDF

43.9 KB Authoring application: PDF Studio
MD5: dfb2bda431d43e524fd2250a38a4ae9e SHA-1: ed600166945223493c48833d29678b988aeb8edd SHA-256: fe4e8dbdd6a178b28c1fbc8a04582ade87c7e5ad80aee515d83312bbd70d8ade
152 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, identified as a PDF_SEO_LINK_FARM heuristic. The embedded URLs point to various domains, suggesting a link distribution or redirection scheme. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or SEO abuse.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://blackandchosen.com/uploads/1/3/0/2/130287514/2992034.pdf
    • http://mijnheerdegroot.nl/uploads/1/3/0/5/130544001/22af415cb3ba.pdf
    • http://carrollcountydentistry.com/uploads/1/3/0/2/130272233/zukekuwugejuji-davuled.pdf
    • http://mountainmommanaturals.com/uploads/1/3/0/4/130483230/2cddcd9da9.pdf
    • http://pureclassgeelong.com.au/uploads/1/3/0/2/130289184/naxobunavel_baxamew.pdf
    • http://localzaa.com/uploads/1/3/0/5/130588678/7124868.pdf
    • http://kittenconvict.org/uploads/1/3/0/5/130551014/zativer.pdf
    • http://themovingconcierge.com.au/uploads/1/3/0/5/130551464/gefaduv.pdf
    • http://internetradiochat.com/uploads/1/3/0/6/130605285/4974628.pdf
    • http://1hrloan.com/uploads/1/3/0/7/130738882/teroj_ketasado_wexereda_ruwovajuwatel.pdf
    • http://podollangpis.devsite-1.com/uploads/1/3/0/3/130312973/130312973.html#ab+roller+wheel+exercises

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000128a.bin
0484669ac6bcfbeb050053565e5841381f35c3db76469f7d9436b34e517c7d40		 pdf-font-stream PDF embedded font (sfnt) at offset 0x128A 8136 bytes
font_01_sfnt_off000065a0.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63		 pdf-font-stream PDF embedded font (sfnt) at offset 0x65A0 16036 bytes

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