taurus | 8e5b6eb034d3b637b88680809e6908b782e4bcf43eab821fa37b1953a0b884b1

Analysis

max time kernel
62s
max time network
71s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
30-11-2022 18:36

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General

Target

8e5b6eb034d3b637b88680809e6908b782e4bcf43eab821fa37b1953a0b884b1.exe
Size

209KB
MD5

b18db9c158f2610a9191736203fe86fd
SHA1

23d6158327c361b7c60735b5820e718eef6a3064
SHA256

8e5b6eb034d3b637b88680809e6908b782e4bcf43eab821fa37b1953a0b884b1
SHA512

f4cb54c08de2d575196a806b4ce23b33280237fb06c7f07e56b3bb031c231370152a488cd168d71998ca054ad22689078a839cf3936142056b28003caf1b0392
SSDEEP

3072:u5bhq9KaK0pIwfz/lUYJ8lHjGpew/2p9YEcVYaOayrjfCgVzS0qRlW:u+9tK0ptfz6+q6p/S5qYaODjfCmSVW

Score

10^/10

taurus discovery spyware stealer trojan

Malware Config

Signatures

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

Taurus Stealer payload 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1932-55-0x0000000000220000-0x0000000000258000-memory.dmp	family_taurus_stealer
behavioral1/memory/1932-57-0x0000000000400000-0x00000000004DF000-memory.dmp	family_taurus_stealer
behavioral1/memory/1932-58-0x0000000000220000-0x0000000000258000-memory.dmp	family_taurus_stealer
behavioral1/memory/1932-60-0x0000000000400000-0x00000000004DF000-memory.dmp	family_taurus_stealer
behavioral1/memory/1932-62-0x0000000000400000-0x00000000004DF000-memory.dmp	family_taurus_stealer

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1820 cmd.exe
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
Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

1072 timeout.exe

pid	process
1820	cmd.exe

pid	process
1072	timeout.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

8e5b6eb034d3b637b88680809e6908b782e4bcf43eab821fa37b1953a0b884b1.execmd.exe

description	pid	process	target process
PID 1932 wrote to memory of 1820	1932	8e5b6eb034d3b637b88680809e6908b782e4bcf43eab821fa37b1953a0b884b1.exe	cmd.exe
PID 1932 wrote to memory of 1820	1932	8e5b6eb034d3b637b88680809e6908b782e4bcf43eab821fa37b1953a0b884b1.exe	cmd.exe
PID 1932 wrote to memory of 1820	1932	8e5b6eb034d3b637b88680809e6908b782e4bcf43eab821fa37b1953a0b884b1.exe	cmd.exe
PID 1932 wrote to memory of 1820	1932	8e5b6eb034d3b637b88680809e6908b782e4bcf43eab821fa37b1953a0b884b1.exe	cmd.exe
PID 1820 wrote to memory of 1072	1820	cmd.exe	timeout.exe
PID 1820 wrote to memory of 1072	1820	cmd.exe	timeout.exe
PID 1820 wrote to memory of 1072	1820	cmd.exe	timeout.exe
PID 1820 wrote to memory of 1072	1820	cmd.exe	timeout.exe

C:\Users\Admin\AppData\Local\Temp\8e5b6eb034d3b637b88680809e6908b782e4bcf43eab821fa37b1953a0b884b1.exe
"C:\Users\Admin\AppData\Local\Temp\8e5b6eb034d3b637b88680809e6908b782e4bcf43eab821fa37b1953a0b884b1.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1932
- C:\Windows\SysWOW64\cmd.exe
  /c timeout /t 3 & del /f /q C:\Users\Admin\AppData\Local\Temp\8e5b6eb034d3b637b88680809e6908b782e4bcf43eab821fa37b1953a0b884b1.exe
  2⤵
  - Deletes itself
  - Suspicious use of WriteProcessMemory
  PID:1820
- - C:\Windows\SysWOW64\timeout.exe
    timeout /t 3
    3⤵
    - Delays execution with timeout.exe
    PID:1072

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1072-63-0x0000000000000000-mapping.dmp

Download
memory/1820-61-0x0000000000000000-mapping.dmp

Download
memory/1932-55-0x0000000000220000-0x0000000000258000-memory.dmp

Filesize
224KB

Download
memory/1932-54-0x00000000006CA000-0x00000000006ED000-memory.dmp

Filesize
140KB

Download
memory/1932-56-0x0000000076831000-0x0000000076833000-memory.dmp

Filesize
8KB

Download
memory/1932-57-0x0000000000400000-0x00000000004DF000-memory.dmp

Filesize
892KB

Download
memory/1932-58-0x0000000000220000-0x0000000000258000-memory.dmp

Filesize
224KB

Download
memory/1932-59-0x00000000006CA000-0x00000000006ED000-memory.dmp

Filesize
140KB

Download
memory/1932-60-0x0000000000400000-0x00000000004DF000-memory.dmp

Filesize
892KB

Download
memory/1932-62-0x0000000000400000-0x00000000004DF000-memory.dmp

Filesize
892KB

Download