masslogger | 577f1aaf7014272adaeffea243272a164641c90553f5d87e4dee03037b2b8a82

General

Target
yFZiIl7pC8AaDwe.exe
Size 1008KB
Sample200714-e8t7j3mebe
SHA256 577f1aaf7014272adaeffea243272a164641c90553f5d87e4dee03037b2b8a82
MD5 19c1f741f33aca759a4b29b696b7116f
SHA1 aa816bd9086bab8e967331b91e91b87445eb523a
SHA512 238ace5b37e71619b2b15d6e8e23c43438eb90fb8934e0096b75e92f2428ce0c262cc99ae3b3cfd1b139d1f2441438074a56e250b715e59674995ca5ad0f2df0
MD5 SHA1 SHA512

Score

10^/10

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1780	yFZiIl7pC8AaDwe.exe

MassLogger log file 1 IoCs

Detects a log file produced by MassLogger.

yara_rule
masslogger_log_file

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
1848	schtasks.exe

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

Data from Local System
T1005

Credentials in Files
T1081

Looks up external IP address via web service 1 IoCs

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

flow	ioc
5	api.ipify.org

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1780	yFZiIl7pC8AaDwe.exe
1780	yFZiIl7pC8AaDwe.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1312 set thread context of 1780	1312	yFZiIl7pC8AaDwe.exe	28

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1780	yFZiIl7pC8AaDwe.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1780	yFZiIl7pC8AaDwe.exe

MassLogger
Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.
stealer spyware masslogger

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 1312 wrote to memory of 1848	1312	yFZiIl7pC8AaDwe.exe	26
PID 1312 wrote to memory of 1848	1312	yFZiIl7pC8AaDwe.exe	26
PID 1312 wrote to memory of 1848	1312	yFZiIl7pC8AaDwe.exe	26
PID 1312 wrote to memory of 1848	1312	yFZiIl7pC8AaDwe.exe	26
PID 1312 wrote to memory of 1780	1312	yFZiIl7pC8AaDwe.exe	28
PID 1312 wrote to memory of 1780	1312	yFZiIl7pC8AaDwe.exe	28
PID 1312 wrote to memory of 1780	1312	yFZiIl7pC8AaDwe.exe	28
PID 1312 wrote to memory of 1780	1312	yFZiIl7pC8AaDwe.exe	28
PID 1312 wrote to memory of 1780	1312	yFZiIl7pC8AaDwe.exe	28
PID 1312 wrote to memory of 1780	1312	yFZiIl7pC8AaDwe.exe	28
PID 1312 wrote to memory of 1780	1312	yFZiIl7pC8AaDwe.exe	28
PID 1312 wrote to memory of 1780	1312	yFZiIl7pC8AaDwe.exe	28
PID 1312 wrote to memory of 1780	1312	yFZiIl7pC8AaDwe.exe	28

C:\Users\Admin\AppData\Local\Temp\yFZiIl7pC8AaDwe.exe
"C:\Users\Admin\AppData\Local\Temp\yFZiIl7pC8AaDwe.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1312
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\sSLHIra" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE243.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1848
- C:\Users\Admin\AppData\Local\Temp\yFZiIl7pC8AaDwe.exe
  "{path}"
  2⤵
  - Suspicious use of SetWindowsHookEx
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious behavior: AddClipboardFormatListener
  PID:1780