Malicious PDF — malware analysis report

Static analysis result for SHA-256 dfe40206964fa69a…

MALICIOUS

PDF

69.6 KB Authoring application: PDF Studio
MD5: cc2b6d1443084d04b058a4188837f377 SHA-1: 05c42a986aeeb3923ea2563883b232760475186c SHA-256: dfe40206964fa69a990f93e2bac880edee99bcc0f2b1335981c01dd17334936f
150 Risk Score

Malware Insights

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

The PDF was flagged by multiple heuristics, including a critical finding for a PDF SEO link farm. This indicates the document's primary purpose is to host a collection of external links. The embedded URLs point to other PDF files, suggesting a chain of redirection or a method to distribute malicious content. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or traffic redirection intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9978

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://theproblemsolversnc.com/uploads/1/3/0/6/130639449/sakidaxalafo.pdf
    • http://appabledigital.com/uploads/1/3/0/7/130740200/venivigune_tumukadenetewur_gatemotinulemiw_joxozowuwo.pdf
    • http://nwintegrativeprimarycare.com/uploads/1/3/0/5/130543848/pefinu.pdf
    • http://bodyworkbybarb.com/uploads/1/3/0/7/130776826/130776826.html#%D8%A3%D8%B1%D8%AE%D8%B5+%D8%B4%D9%82%D9%82+%D9%84%D9%84%D8%A5%D9%8A%D8%AC%D8%A7%D8%B1+%D9%81%D9%8A+%D9%85%D8%AF%D9%8A%D9%86%D8%A9+%D9%86%D9%8A%D9%88%D9%8A%D9%88%D8%B1%D9%83

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off0000aafd.bin
b3c7d30fbc4d9052dc74ace17377d4b10f6dd74a2fa367e377c6e4c605265641		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0xAAFD 33552 bytes
font_00_sfnt_off000011ba.bin
9d7b814e9a41288c7af90262c59e7d6e1ba46d62be5f634ef3fc66379c011011		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11BA 7512 bytes

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