taurus | 826a9903842e8238bfeae86770293ee5932ff8e56cea99fa3d5589f0c9f37839

Analysis

max time kernel
142s
max time network
182s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
17/04/2022, 14:35

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General

Target
826a9903842e8238bfeae86770293ee5932ff8e56cea99fa3d5589f0c9f37839.exe
Size 571KB
Sample220417-ryd2tagbdl
SHA256 826a9903842e8238bfeae86770293ee5932ff8e56cea99fa3d5589f0c9f37839
MD5 560b16455fd6ec79603a38a029849071
SHA1 30ba859430739102710d88fdab91ea06c6d6e176
SHA512 30c07392ba368e90aaaf18d2f1ce7815b5dcc23760a78085168d720a21a15be6a01d6a55604078aefd2f31ddb19773919e19efedf0be75c7498e25ce54ef6cc5
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 1 IoCs

resource	yara_rule
behavioral2/memory/3604-131-0x0000000000400000-0x00000000004A6000-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
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
5008	timeout.exe

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	826a9903842e8238bfeae86770293ee5932ff8e56cea99fa3d5589f0c9f37839.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3604 wrote to memory of 3320	3604	826a9903842e8238bfeae86770293ee5932ff8e56cea99fa3d5589f0c9f37839.exe	80
PID 3604 wrote to memory of 3320	3604	826a9903842e8238bfeae86770293ee5932ff8e56cea99fa3d5589f0c9f37839.exe	80
PID 3604 wrote to memory of 3320	3604	826a9903842e8238bfeae86770293ee5932ff8e56cea99fa3d5589f0c9f37839.exe	80
PID 3320 wrote to memory of 5008	3320	cmd.exe	82
PID 3320 wrote to memory of 5008	3320	cmd.exe	82
PID 3320 wrote to memory of 5008	3320	cmd.exe	82

C:\Users\Admin\AppData\Local\Temp\826a9903842e8238bfeae86770293ee5932ff8e56cea99fa3d5589f0c9f37839.exe
"C:\Users\Admin\AppData\Local\Temp\826a9903842e8238bfeae86770293ee5932ff8e56cea99fa3d5589f0c9f37839.exe"
1⤵
- Enumerates system info in registry
- Suspicious use of WriteProcessMemory
PID:3604
- C:\Windows\SysWOW64\cmd.exe
  /c timeout /t 3 & del /f /q C:\Users\Admin\AppData\Local\Temp\826a9903842e8238bfeae86770293ee5932ff8e56cea99fa3d5589f0c9f37839.exe
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3320
- - C:\Windows\SysWOW64\timeout.exe
    timeout /t 3
    3⤵
    - Delays execution with timeout.exe
    PID:5008

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/3604-130-0x0000000000400000-0x00000000004A6000-memory.dmp

Download

memory/3604-131-0x0000000000400000-0x00000000004A6000-memory.dmp