Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0783e360c38f312…

MALICIOUS

PDF

28.5 KB Authoring application: OpenOffice Draw
MD5: 15940c7b05b9931ab97d586552fa6a47 SHA-1: 5ede9cc6723e9bcad975fa9c35ed90fafedc3e70 SHA-256: d0783e360c38f312938d8b31135d80c8af459e448592b600a4d3360c118d2dd1
150 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various domains. The ClamAV detection and ML classifier strongly indicate malicious intent, likely for phishing or distributing further malware. The embedded links are the primary IOCs, suggesting a link-farming or redirection strategy.

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://hentaigal.porncolection.com/uploads/1/3/0/4/130483242/6263147.pdf
    • http://bluinc-fashion.com/uploads/1/3/0/3/130379183/muvagobukepaxep_pejulurejuwuv_nevonajivegotab.pdf
    • http://alangelfand.com/uploads/1/3/0/4/130478314/piwitoxuje.pdf
    • http://nerrax.store/uploads/1/3/0/5/130588570/ee8554aba13a27.pdf
    • http://semanticwebcommunity.com/uploads/1/3/0/6/130603882/fidatevimobuk.pdf
    • http://www.beirdoapparel.com/uploads/1/3/0/7/130776590/5077619.pdf
    • http://sportyogalady.com/uploads/1/3/0/5/130543537/8931797.pdf
    • http://biologiadellanutrizione.com/uploads/1/3/0/5/130588475/6816190.pdf
    • http://resimmagnet.net/uploads/1/3/0/7/130739381/9848964.pdf
    • http://geneushealthaddictiontesting.com/uploads/1/3/0/6/130621401/5867858.pdf
    • http://capiteg-icorp.com/uploads/1/3/0/2/130288579/642df97a8eb97e.pdf
    • http://34gda.brdge.org/uploads/1/3/0/9/130970008/130970008.html#linear+algebra+methods+in+combinatorics+pdf
    • http://34gda.brdge.org/uploads/1/3/0/9/130

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001941.bin
eaa4b081066c3372a2384dd40ce6d59d137a823d2eea89a0bf29f663b23662cc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1941 7328 bytes

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