Malicious PDF — malware analysis report

Static analysis result for SHA-256 4c2f37251f0e98ae…

MALICIOUS

PDF

47.6 KB Authoring application: OpenOffice.org
MD5: f1303920c4ecef91e2915619c4ab457e SHA-1: 1b378a9e1c5436cc70b215823f5f2e8418b5ccf5 SHA-256: 4c2f37251f0e98aee90054d417da8789b3833be796fed80cacd0accecc668179
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious 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 strongly indicate malicious intent. The document body text is largely unreadable, but the presence of numerous external links is the primary indicator of the attack pattern.

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://norfolkeyephysiciansandsurgeons.com/uploads/1/3/0/6/130621730/mozomab_xewov_dujuwekixo_vavalure.pdf
    • http://accreteequitypartners.com/uploads/1/3/0/4/130483836/a59a6eef74fae0.pdf
    • http://teachersofeg.com/uploads/1/3/0/2/130287445/xetilugusu.pdf
    • http://pokestar.online/uploads/2020/01/28/bcbc2.pdf
    • http://lordoftheblock.com/uploads/1/3/0/3/130323892/9271114.pdf
    • http://mikeshurig.com/uploads/1/3/0/6/130639235/7e8cffe8500.pdf
    • http://cityonloc.com/uploads/1/3/0/2/130289774/nukoret.pdf
    • http://nazmuska.com/uploads/1/3/0/3/130379138/e1c9bf.pdf
    • https://dobujiwade.weebly.com/uploads/1/3/0/4/130477048/6683776.pdf
    • http://morongovalley.org/uploads/1/3/0/2/130288579/9623156.pdf
    • http://photostudiescollege.net/uploads/1/3/0/5/130540604/3df4d11301da9.pdf
    • http://newarkvalleychamber.com/uploads/1/3/0/5/130542965/zafazuke.pdf
    • http://gomriz.com/uploads/1/3/0/7/130739165/130739165.html#samsung+navigation+app+free

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001302.bin
1dba22c493bde7e559564269d6e08231708b840362c4bd331201060286de67f0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1302 8388 bytes
font_01_sfnt_off00006ce0.bin
1357a11f707fb834cac759a1a6c24a91b396f0df3c72968141f7b8e8a1b069ba		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6CE0 18104 bytes

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