Malicious PDF — malware analysis report

Static analysis result for SHA-256 235527d209931b0e…

MALICIOUS

PDF

42.3 KB Authoring application: QPDF
MD5: 89699b3fe08b21405d99ab72bd4e655f SHA-1: d113a555f473df6699f42afd1cd3c4825699b8bb SHA-256: 235527d209931b0e41a788e999854efc056c70127221d9f808d0e3e6ff5464e5
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of external links, masquerading as a Reebok tactical boots advertisement, to a network of websites. This behavior is consistent with a phishing or SEO spam campaign designed to drive traffic to malicious or compromised sites. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports this assessment.

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://castletraining.org/uploads/1/3/0/4/130489530/kukanarapivuti-duranojarokuse.pdf
    • http://tranqill.com/uploads/1/3/0/3/130379514/worometez_mefojugobat_bujuxerum_zomarix.pdf
    • http://mudu.goodshop02.fun/uploads/2020/01/29/bigezox.pdf
    • http://maria-cipriano.com/uploads/1/3/0/3/130323271/tutizab-javozax-bitizoj-niwutajapoj.pdf
    • http://krafjohor.com/uploads/1/3/0/5/130551294/4811882.pdf
    • http://nevewinter.com/uploads/1/3/0/6/130605403/fenajewadi.pdf
    • http://purpleshirts.net/uploads/1/3/0/4/130435927/6695291.pdf
    • http://designsbydorian.biz/uploads/1/3/0/5/130543019/8ff85fdda26.pdf
    • http://josephdanielglobal.net/uploads/1/3/0/4/130478347/5196807.pdf
    • http://adoptme.info/uploads/1/3/0/6/130603772/130603772.html#botas+tacticas+reebok

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001414.bin
4cb93303b5e7119a0b49d54f4a57079bd8a902241fedfda70a4fcaac670fc5ae		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1414 10100 bytes

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