taurus | 4aaf32a9593e3fff90d2fc26e766549d044d89d8a473534c94c94925b1678dad

General

Target

aefbc18d2b634990ab54da4310058d2f_JaffaCakes118.exe
Size

271KB
MD5

aefbc18d2b634990ab54da4310058d2f
SHA1

f572947ddf7fd8378b2bca1e3eb8716f5798664a
SHA256

4aaf32a9593e3fff90d2fc26e766549d044d89d8a473534c94c94925b1678dad
SHA512

314e7eed480827a3f9b35888a08ce2887f4ae6e6ff8722f5c67bbe093d715b6cb0bbab4d4ff1978a7ed362342d6f53a797671f51f1e6e024df7b09834b38146f
SSDEEP

3072:DM4NHbZSNmg3BdLk7bdpgUbcX0lYjG22F2IgO+f9o+Q2X45O:4KSmgxdLkHfVy0l8i7OLbb

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 5 IoCs

resource	yara_rule
behavioral1/memory/2624-2-0x0000000000400000-0x0000000000437000-memory.dmp	family_taurus_stealer
behavioral1/memory/2624-3-0x0000000000400000-0x0000000005FE6000-memory.dmp	family_taurus_stealer
behavioral1/memory/2624-6-0x0000000000400000-0x0000000000437000-memory.dmp	family_taurus_stealer
behavioral1/memory/2624-25-0x0000000000400000-0x0000000000437000-memory.dmp	family_taurus_stealer
behavioral1/memory/2624-24-0x0000000000400000-0x0000000005FE6000-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
1648	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	aefbc18d2b634990ab54da4310058d2f_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
2872	timeout.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2624 wrote to memory of 1648	2624	aefbc18d2b634990ab54da4310058d2f_JaffaCakes118.exe	31
PID 2624 wrote to memory of 1648	2624	aefbc18d2b634990ab54da4310058d2f_JaffaCakes118.exe	31
PID 2624 wrote to memory of 1648	2624	aefbc18d2b634990ab54da4310058d2f_JaffaCakes118.exe	31
PID 2624 wrote to memory of 1648	2624	aefbc18d2b634990ab54da4310058d2f_JaffaCakes118.exe	31
PID 1648 wrote to memory of 2872	1648	cmd.exe	33
PID 1648 wrote to memory of 2872	1648	cmd.exe	33
PID 1648 wrote to memory of 2872	1648	cmd.exe	33
PID 1648 wrote to memory of 2872	1648	cmd.exe	33

C:\Users\Admin\AppData\Local\Temp\aefbc18d2b634990ab54da4310058d2f_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\aefbc18d2b634990ab54da4310058d2f_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2624
- C:\Windows\SysWOW64\cmd.exe
  /c timeout /t 3 & del /f /q C:\Users\Admin\AppData\Local\Temp\aefbc18d2b634990ab54da4310058d2f_JaffaCakes118.exe
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1648
- - C:\Windows\SysWOW64\timeout.exe
    timeout /t 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:2872

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/2624-1-0x0000000000270000-0x0000000000370000-memory.dmp

Filesize
1024KB

Download
memory/2624-2-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download
memory/2624-3-0x0000000000400000-0x0000000005FE6000-memory.dmp

Filesize
91.9MB

Download
memory/2624-4-0x0000000000270000-0x0000000000370000-memory.dmp

Filesize
1024KB

Download
memory/2624-6-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download
memory/2624-26-0x0000000000270000-0x0000000000370000-memory.dmp

Filesize
1024KB

Download
memory/2624-25-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download
memory/2624-24-0x0000000000400000-0x0000000005FE6000-memory.dmp

Filesize
91.9MB

Download

Analysis

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