taurus_stealer | 38e6f4d8f53e8a38950594d9588cb00218bf46113c51b5241771181a521b9c75

Analysis

Target

updatewin.exe
Size

208KB
MD5

9010fa92cc83afe00fab38703e6ffa77
SHA1

4d603ec27d02d84a65d1555c2df0896d7675fafc
SHA256

38e6f4d8f53e8a38950594d9588cb00218bf46113c51b5241771181a521b9c75
SHA512

a39ea249da189fedd5f8d1c13d03693626c70ba08c69c4ec76396d3475c5480e98c8dba1da0b74089252d8d781fc050e4eed9346b648ccbb42e22cf6d15399e8

Score

10^/10

Taurus Stealer
Taurus is an infostealer first seen in June 2020.
trojan stealer taurus_stealer
Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

560 cmd.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
Accesses 2FA software files, possible credential harvesting 2 TTPs
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012
Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

928 timeout.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

updatewin.exe

description pid process

Token: SeRestorePrivilege 324 updatewin.exe
Token: SeBackupPrivilege 324 updatewin.exe

pid	process
560	cmd.exe

pid	process
928	timeout.exe

description	pid	process
Token: SeRestorePrivilege	324	updatewin.exe
Token: SeBackupPrivilege	324	updatewin.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

updatewin.execmd.exe

description	pid	process	target process
PID 324 wrote to memory of 560	324	updatewin.exe	cmd.exe
PID 324 wrote to memory of 560	324	updatewin.exe	cmd.exe
PID 324 wrote to memory of 560	324	updatewin.exe	cmd.exe
PID 324 wrote to memory of 560	324	updatewin.exe	cmd.exe
PID 324 wrote to memory of 560	324	updatewin.exe	cmd.exe
PID 324 wrote to memory of 560	324	updatewin.exe	cmd.exe
PID 324 wrote to memory of 560	324	updatewin.exe	cmd.exe
PID 560 wrote to memory of 928	560	cmd.exe	timeout.exe
PID 560 wrote to memory of 928	560	cmd.exe	timeout.exe
PID 560 wrote to memory of 928	560	cmd.exe	timeout.exe
PID 560 wrote to memory of 928	560	cmd.exe	timeout.exe
PID 560 wrote to memory of 928	560	cmd.exe	timeout.exe
PID 560 wrote to memory of 928	560	cmd.exe	timeout.exe
PID 560 wrote to memory of 928	560	cmd.exe	timeout.exe

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

Discovery

Query Registry

Lateral Movement

Collection

Data from Local System

Command and Control

Exfiltration

Impact

memory/324-2-0x00000000766C1000-0x00000000766C3000-memory.dmp

Filesize
8KB

Download
memory/560-4-0x0000000000000000-mapping.dmp

Download
memory/928-6-0x0000000000000000-mapping.dmp

Download
memory/1992-3-0x000007FEF7D30000-0x000007FEF7FAA000-memory.dmp

Filesize
2.5MB

Download