taurus | a91b3d9145212348534c3c034dbab63222a6c9f4486b91e9e2ed839a189be752

Analysis

max time kernel
146s
max time network
136s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
27-04-2022 15:24

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General

Target

a91b3d9145212348534c3c034dbab63222a6c9f4486b91e9e2ed839a189be752.exe
Size

253KB
MD5

cec0e3b18affd7e948715d0e0800743e
SHA1

5661c94fc13b5ad409921fc04f01edf1073e12ee
SHA256

a91b3d9145212348534c3c034dbab63222a6c9f4486b91e9e2ed839a189be752
SHA512

259dfb416ac0a340bf3eb47c44e87668ff3a383a386e190c09bcd9b625f1254743c119dd037b3bfbdda862d5140c57a60b67df14eb3228c2535ef11adef858e3

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/4772-134-0x0000000004BF0000-0x0000000004C26000-memory.dmp	family_taurus_stealer
behavioral2/memory/4772-135-0x0000000000400000-0x0000000002FCA000-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

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3048	4772	WerFault.exe	81

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
1480	timeout.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4772 wrote to memory of 1656	4772	a91b3d9145212348534c3c034dbab63222a6c9f4486b91e9e2ed839a189be752.exe	91
PID 4772 wrote to memory of 1656	4772	a91b3d9145212348534c3c034dbab63222a6c9f4486b91e9e2ed839a189be752.exe	91
PID 4772 wrote to memory of 1656	4772	a91b3d9145212348534c3c034dbab63222a6c9f4486b91e9e2ed839a189be752.exe	91
PID 1656 wrote to memory of 1480	1656	cmd.exe	95
PID 1656 wrote to memory of 1480	1656	cmd.exe	95
PID 1656 wrote to memory of 1480	1656	cmd.exe	95

C:\Users\Admin\AppData\Local\Temp\a91b3d9145212348534c3c034dbab63222a6c9f4486b91e9e2ed839a189be752.exe
"C:\Users\Admin\AppData\Local\Temp\a91b3d9145212348534c3c034dbab63222a6c9f4486b91e9e2ed839a189be752.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4772
- C:\Windows\SysWOW64\cmd.exe
  /c timeout /t 3 & del /f /q C:\Users\Admin\AppData\Local\Temp\a91b3d9145212348534c3c034dbab63222a6c9f4486b91e9e2ed839a189be752.exe
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1656
- - C:\Windows\SysWOW64\timeout.exe
    timeout /t 3
    3⤵
    - Delays execution with timeout.exe
    PID:1480
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4772 -s 1356
  2⤵
  - Program crash
  PID:3048

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4772 -ip 4772
1⤵
PID:1068

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

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Downloads

memory/4772-133-0x0000000003268000-0x0000000003289000-memory.dmp

Filesize
132KB

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memory/4772-134-0x0000000004BF0000-0x0000000004C26000-memory.dmp

Filesize
216KB

Download
memory/4772-135-0x0000000000400000-0x0000000002FCA000-memory.dmp

Filesize
43.8MB

Download