snakekeylogger | dc7749ab9753ec5962ae6b0b4f1ec32c7b2bb7da1b75510a1cccc440994e6deb

General

Target
bluezx.exe
Size 433KB
Sample210917-rfkrmsafej
SHA256 dc7749ab9753ec5962ae6b0b4f1ec32c7b2bb7da1b75510a1cccc440994e6deb
MD5 69a9db15182e0c145e2f9913583a69bd
SHA1 a58d91f97c55f258a99a69153060e82d3c1592c2
SHA512 d19569ce68ff0e1ec3be616c9d61cd052442107733a71aebc173d6e1f47f5203e34eb78a3722b80dc8564343b88214d767b0c917571f234eabf4858d79a01dbe
MD5 SHA1 SHA512

Score

10^/10

Family

Credentials

Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
stealer keylogger snakekeylogger
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

Looks up external IP address via web service 3 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1696 set thread context of 1676	1696	bluezx.exe	29

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

Scheduled Task

pid	Process
1680	schtasks.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1676	bluezx.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1676	bluezx.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 1696 wrote to memory of 1680	1696	bluezx.exe	27
PID 1696 wrote to memory of 1680	1696	bluezx.exe	27
PID 1696 wrote to memory of 1680	1696	bluezx.exe	27
PID 1696 wrote to memory of 1680	1696	bluezx.exe	27
PID 1696 wrote to memory of 1676	1696	bluezx.exe	29
PID 1696 wrote to memory of 1676	1696	bluezx.exe	29
PID 1696 wrote to memory of 1676	1696	bluezx.exe	29
PID 1696 wrote to memory of 1676	1696	bluezx.exe	29
PID 1696 wrote to memory of 1676	1696	bluezx.exe	29
PID 1696 wrote to memory of 1676	1696	bluezx.exe	29
PID 1696 wrote to memory of 1676	1696	bluezx.exe	29
PID 1696 wrote to memory of 1676	1696	bluezx.exe	29
PID 1696 wrote to memory of 1676	1696	bluezx.exe	29

C:\Users\Admin\AppData\Local\Temp\bluezx.exe
"C:\Users\Admin\AppData\Local\Temp\bluezx.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1696
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\VKjaUr" /XML "C:\Users\Admin\AppData\Local\Temp\tmp9185.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1680
- C:\Users\Admin\AppData\Local\Temp\bluezx.exe
  "C:\Users\Admin\AppData\Local\Temp\bluezx.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1676