taurus | b51830f769d9783b6f63c6a4a8fba4c4d223f0c37bf864bbdf2decd92a5d052a

General

Target

b51830f769d9783b6f63c6a4a8fba4c4d223f0c37bf864bbdf2decd92a5d052a.exe
Size

293KB
MD5

dadd3bfa7d911e69f81508fccbf0a47d
SHA1

f4391ad0261e077dc02dd04e4ac43a42028db3f3
SHA256

b51830f769d9783b6f63c6a4a8fba4c4d223f0c37bf864bbdf2decd92a5d052a
SHA512

6ca47acc3b0021eeaefd57bb9b55a85fb38cd3fd071148280794206e13609c3a61fd59caf6a999740258015ca053c96e0589251e3fbef0112ff3ac8e402b92f5

Score

10^/10

taurus discovery spyware stealer trojan upx

Malware Config

Signatures

Taurus Stealer
Taurus is an infostealer first seen in June 2020.
trojan stealer taurus

Taurus Stealer payload 3 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4716-131-0x00000000065A0000-0x00000000065D6000-memory.dmp	family_taurus_stealer
behavioral2/memory/4716-132-0x0000000000400000-0x00000000047D2000-memory.dmp	family_taurus_stealer
behavioral2/memory/4716-136-0x0000000000400000-0x00000000047D2000-memory.dmp	family_taurus_stealer

UPX packed file 1 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
behavioral2/memory/4716-130-0x0000000000400000-0x00000000047D2000-memory.dmp	upx

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
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
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

3372 4716 WerFault.exe b51830f769d9783b6f63c6a4a8fba4c4d223f0c37bf864bbdf2decd92a5d052a.exe
Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

4968 timeout.exe

pid	pid_target	process	target process
3372	4716	WerFault.exe	b51830f769d9783b6f63c6a4a8fba4c4d223f0c37bf864bbdf2decd92a5d052a.exe

pid	process
4968	timeout.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

b51830f769d9783b6f63c6a4a8fba4c4d223f0c37bf864bbdf2decd92a5d052a.execmd.exe

description	pid	process	target process
PID 4716 wrote to memory of 4144	4716	b51830f769d9783b6f63c6a4a8fba4c4d223f0c37bf864bbdf2decd92a5d052a.exe	cmd.exe
PID 4716 wrote to memory of 4144	4716	b51830f769d9783b6f63c6a4a8fba4c4d223f0c37bf864bbdf2decd92a5d052a.exe	cmd.exe
PID 4716 wrote to memory of 4144	4716	b51830f769d9783b6f63c6a4a8fba4c4d223f0c37bf864bbdf2decd92a5d052a.exe	cmd.exe
PID 4144 wrote to memory of 4968	4144	cmd.exe	timeout.exe
PID 4144 wrote to memory of 4968	4144	cmd.exe	timeout.exe
PID 4144 wrote to memory of 4968	4144	cmd.exe	timeout.exe

C:\Users\Admin\AppData\Local\Temp\b51830f769d9783b6f63c6a4a8fba4c4d223f0c37bf864bbdf2decd92a5d052a.exe
"C:\Users\Admin\AppData\Local\Temp\b51830f769d9783b6f63c6a4a8fba4c4d223f0c37bf864bbdf2decd92a5d052a.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4716

C:\Windows\SysWOW64\cmd.exe
/c timeout /t 3 & del /f /q C:\Users\Admin\AppData\Local\Temp\b51830f769d9783b6f63c6a4a8fba4c4d223f0c37bf864bbdf2decd92a5d052a.exe
2⤵
- Suspicious use of WriteProcessMemory
PID:4144

C:\Windows\SysWOW64\timeout.exe
timeout /t 3
3⤵
- Delays execution with timeout.exe
PID:4968

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4716 -s 1240
2⤵
- Program crash
PID:3372

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4716 -ip 4716
1⤵
PID:4516

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

2

T1081

Discovery

Query Registry

1

T1012

Lateral Movement

Collection

Data from Local System

2

T1005

Exfiltration

Command and Control

Impact

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Downloads

memory/4144-134-0x0000000000000000-mapping.dmp

Download
memory/4716-130-0x0000000000400000-0x00000000047D2000-memory.dmp

Filesize
67.8MB

Download
memory/4716-131-0x00000000065A0000-0x00000000065D6000-memory.dmp

Filesize
216KB

Download
memory/4716-132-0x0000000000400000-0x00000000047D2000-memory.dmp

Filesize
67.8MB

Download
memory/4716-133-0x0000000004D90000-0x0000000004DB1000-memory.dmp

Filesize
132KB

Download
memory/4716-136-0x0000000000400000-0x00000000047D2000-memory.dmp

Filesize
67.8MB

Download
memory/4968-135-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads