taurus | 3996bccff0e44aaa5b08e795a71982d5197e65324becaa3c8c89cbdbe3d35ca8

Analysis

max time kernel
123s
max time network
134s
platform
windows10_x64
resource
win10-en-20210920
submitted
18/10/2021, 10:00

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General

Target
5aec5387781dc9f1e76e4129b59f6f6f.exe
Size 362KB
Sample211018-l1tmdsecem
SHA256 3996bccff0e44aaa5b08e795a71982d5197e65324becaa3c8c89cbdbe3d35ca8
MD5 5aec5387781dc9f1e76e4129b59f6f6f
SHA1 9924b0299ac6afdbb24e1787a90e4da5749337f0
SHA512 4c4539860f2092509685b95c973fad5a380ea45d7a5f2a233819175d7c7504020311b0b36bad30f827fbfec289e1de6bc1cd27ec2eb2481cb998d64f872a8f84
MD5 SHA1 SHA512

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 2 IoCs

resource	yara_rule
behavioral2/memory/3556-117-0x0000000000400000-0x000000000046B000-memory.dmp	family_taurus_stealer
behavioral2/memory/3556-116-0x00000000021C0000-0x00000000021F8000-memory.dmp	family_taurus_stealer

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

pid	Process
4388	timeout.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3556 wrote to memory of 4488	3556	5aec5387781dc9f1e76e4129b59f6f6f.exe	70
PID 3556 wrote to memory of 4488	3556	5aec5387781dc9f1e76e4129b59f6f6f.exe	70
PID 3556 wrote to memory of 4488	3556	5aec5387781dc9f1e76e4129b59f6f6f.exe	70
PID 4488 wrote to memory of 4388	4488	cmd.exe	72
PID 4488 wrote to memory of 4388	4488	cmd.exe	72
PID 4488 wrote to memory of 4388	4488	cmd.exe	72

C:\Users\Admin\AppData\Local\Temp\5aec5387781dc9f1e76e4129b59f6f6f.exe
"C:\Users\Admin\AppData\Local\Temp\5aec5387781dc9f1e76e4129b59f6f6f.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3556
- C:\Windows\SysWOW64\cmd.exe
  /c timeout /t 3 & del /f /q C:\Users\Admin\AppData\Local\Temp\5aec5387781dc9f1e76e4129b59f6f6f.exe
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4488
- - C:\Windows\SysWOW64\timeout.exe
    timeout /t 3
    3⤵
    - Delays execution with timeout.exe
    PID:4388

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/3556-117-0x0000000000400000-0x000000000046B000-memory.dmp

Download

memory/3556-116-0x00000000021C0000-0x00000000021F8000-memory.dmp