2a873b427fbe516b7d3fc357667f070e97d141e4d9d882657656c338242e7e26

General

Target

12013662c71da69de977c04cd7021f13a70cf7bed4ca6c82acbc100464d4b0ef
Size

138KB
Sample

230101-smbb8afb9x
MD5

b2281283165557e88fe8eef8f959391c
SHA1

a1970daee6e5839434a4049e4c60835455c07027
SHA256

2a873b427fbe516b7d3fc357667f070e97d141e4d9d882657656c338242e7e26
SHA512

5cbff1169a5e1f0cb8579d07e00058bcbf5a7971f6e463f1dfdc19c8e9a2d1b009c3f8cfe556dd8fca790d31f1a07c73ca8152dd837f8b63476a15dcb235447d
SSDEEP

3072:+sGHBg7pBcQx4JjCRFh0oF5pOnLECFVDBqVCNC7V92kYV6A7fXfJhVQfa/:+xgPcQWpGFh085UL1VDBubM6aPJhVQy/

Score

9^/10

discovery persistence

Malware Config

Targets

- Target
  
  12013662c71da69de977c04cd7021f13a70cf7bed4ca6c82acbc100464d4b0ef
- Size
  
  300KB
- MD5
  
  eec5c6c219535fba3a0492ea8118b397
- SHA1
  
  292559e94f1c04b7d0c65d4a01bbbc5dc1ff6f21
- SHA256
  
  12013662c71da69de977c04cd7021f13a70cf7bed4ca6c82acbc100464d4b0ef
- SHA512
  
  3482c8324a18302f0f37b6e23ed85f24fff9f50bb568d8fd7461bf57f077a7c592f7a88bb2e1c398699958946d87bb93ab744d13a0003f9b879c15e6471f7400
- SSDEEP
  
  6144:T2s/gAWuboqsJ9xcJxspJBqQgTuaJZRhVabE5wKSDP99zBa77oNsKqqfPqOJ:T2s/bW+UmJqBxAuaPRhVabEDSDP99zBT
Score

9^/10

discovery persistence
- Modifies the Watchdog daemon
  Malware like Mirai modify the Watchdog to prevent it restarting an infected system.
- Writes file to system bin folder
- Modifies hosts file
  Adds to hosts file used for mapping hosts to IP addresses.
- Writes DNS configuration
  Writes data to DNS resolver config file.
- Enumerates active TCP sockets
  Gets active TCP sockets from /proc virtual filesystem.
- Modifies init.d
  Adds/modifies system service, likely for persistence.
  persistence
- Reads system routing table
  Gets active network interfaces from /proc virtual filesystem.
- Creates a large amount of network flows
  This may indicate a network scan to discover remotely running services.
  discovery
- Looks up external IP address via web service
  Uses a legitimate IP lookup service to find the infected system's external IP.
- Reads system network configuration
  Uses contents of /proc filesystem to enumerate network settings.
- Reads runtime system information
  Reads data from /proc virtual filesystem.
- Writes file to tmp directory
  Malware often drops required files in the /tmp directory.
behavioral1