Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2a93080b0bf2c06…

MALICIOUS

PDF

69.9 KB Authoring application: Solid Converter PDF
MD5: 16750b6484f2a49877c8afa55e2fb7c3 SHA-1: 0398cf0ad9a9751f44993046747e664bb4ace22d SHA-256: c2a93080b0bf2c066beac81bf9d70db25c5f5e09c0220a800a5c6fba2bbc8aa4
152 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links to external PDF files, a technique often used for SEO spam or to distribute malicious content. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the ML classifier output strongly indicate malicious intent. The document body, though heavily obfuscated, contains URLs that are also listed in the extracted URLs, reinforcing the link-farming attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://kudbehar.com/uploads/2020/01/28/41c8a7fbc1b13b.pdf
    • http://vancouvergaragerepair.com/uploads/1/3/0/5/130589360/gusogaf.pdf
    • http://heythatsprettyneat.com/uploads/1/3/0/6/130603904/wizokona_xivozabonutupo.pdf
    • http://250king.com/uploads/1/3/0/5/130545698/cf8a7b8e.pdf
    • http://twincor.com/uploads/1/3/0/5/130589217/6183499.pdf
    • http://fiddleonthefarm.com/uploads/1/3/0/5/130539414/7702250.pdf
    • http://tojurisa.02shopppp.fun/uploads/2020/01/28/c1dd12f93.pdf
    • http://tbc.group/uploads/1/3/0/6/130604011/befutikupejimas.pdf
    • http://nationalriskmanagementgroup.com/uploads/1/3/0/6/130621162/130621162.html#broadway+musical+scores

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001241.bin
ba38890043372e20181a8c070e170d36d02c475c82c95a342b427fe2fc791151		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1241 8936 bytes
font_01_sfnt_off0000cc2f.bin
5d7ebd720715cd86529581f1d40cc643f68465477bd430d4be5ff736bc95f798		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCC2F 16268 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.