taurus | 49dd1543bfee5615840f41c345db942cc0e8ed457a2aaaf9c2675aaf72872701

General

Target

b3fad346307496a5c2bae39e984e77bd_JaffaCakes118.exe
Size

344KB
MD5

b3fad346307496a5c2bae39e984e77bd
SHA1

5d291bb4318d74ab00ee818bb43f5b91d6ca84cc
SHA256

49dd1543bfee5615840f41c345db942cc0e8ed457a2aaaf9c2675aaf72872701
SHA512

f04c16fc0208f37af50d9c9f991beff799fca269cabd5c8d188e15cdf7b3bf90c0eac11e6478d92d0b07e8ab3fdb02a0008e916aa8eee3f6b98925a57258ddb2
SSDEEP

6144:NO8YrDOJLqgECPRt0TCRkNRUMNDo7q59H2f+L:4/DoNECPRiu2NGMNDo2PL

Score

10^/10

taurus credential_access discovery spyware stealer trojan

Malware Config

Signatures

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

Taurus Stealer payload 6 IoCs

resource	yara_rule
behavioral1/memory/2844-3-0x0000000000400000-0x00000000004FC000-memory.dmp	family_taurus_stealer
behavioral1/memory/2844-2-0x0000000000400000-0x0000000000437000-memory.dmp	family_taurus_stealer
behavioral1/memory/2844-20-0x0000000000400000-0x00000000004FC000-memory.dmp	family_taurus_stealer
behavioral1/memory/2844-21-0x0000000000400000-0x0000000000437000-memory.dmp	family_taurus_stealer
behavioral1/memory/2844-22-0x0000000000400000-0x00000000004FC000-memory.dmp	family_taurus_stealer
behavioral1/memory/2844-23-0x0000000000400000-0x0000000000437000-memory.dmp	family_taurus_stealer

Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003

Deletes itself 1 IoCs

pid	Process
2236	cmd.exe

Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
spyware stealer

Data from Local System
T1005

Credentials in Registry
T1552.002
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
T1552.001
Accesses 2FA software files, possible credential harvesting 2 TTPs
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
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
Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b3fad346307496a5c2bae39e984e77bd_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
704	timeout.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2844 wrote to memory of 2236	2844	b3fad346307496a5c2bae39e984e77bd_JaffaCakes118.exe	31
PID 2844 wrote to memory of 2236	2844	b3fad346307496a5c2bae39e984e77bd_JaffaCakes118.exe	31
PID 2844 wrote to memory of 2236	2844	b3fad346307496a5c2bae39e984e77bd_JaffaCakes118.exe	31
PID 2844 wrote to memory of 2236	2844	b3fad346307496a5c2bae39e984e77bd_JaffaCakes118.exe	31
PID 2236 wrote to memory of 704	2236	cmd.exe	33
PID 2236 wrote to memory of 704	2236	cmd.exe	33
PID 2236 wrote to memory of 704	2236	cmd.exe	33
PID 2236 wrote to memory of 704	2236	cmd.exe	33

C:\Users\Admin\AppData\Local\Temp\b3fad346307496a5c2bae39e984e77bd_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\b3fad346307496a5c2bae39e984e77bd_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2844
- C:\Windows\SysWOW64\cmd.exe
  /c timeout /t 3 & del /f /q C:\Users\Admin\AppData\Local\Temp\b3fad346307496a5c2bae39e984e77bd_JaffaCakes118.exe
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2236
- - C:\Windows\SysWOW64\timeout.exe
    timeout /t 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:704

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

3

T1552

Credentials In Files

2

T1552.001

Credentials in Registry

1

T1552.002

Discovery

Browser Information Discovery

Query Registry

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

3

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2844-1-0x0000000000630000-0x0000000000730000-memory.dmp

Filesize
1024KB

Download
memory/2844-3-0x0000000000400000-0x00000000004FC000-memory.dmp

Filesize
1008KB

Download
memory/2844-2-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download
memory/2844-19-0x0000000000630000-0x0000000000730000-memory.dmp

Filesize
1024KB

Download
memory/2844-20-0x0000000000400000-0x00000000004FC000-memory.dmp

Filesize
1008KB

Download
memory/2844-21-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download
memory/2844-22-0x0000000000400000-0x00000000004FC000-memory.dmp

Filesize
1008KB

Download
memory/2844-23-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download
memory/2844-24-0x0000000000630000-0x0000000000730000-memory.dmp

Filesize
1024KB

Download

Analysis

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