taurus | 954f8c802c2dff2bcd7712c2a7a89b1f566eb76d347a7f9cb3b4a2a21832dd45

General

Target

f1bb608fc3469071c9e53176a8ed4b1c_JaffaCakes118.exe
Size

4.7MB
MD5

f1bb608fc3469071c9e53176a8ed4b1c
SHA1

ce2566f17c0122c98aeb641cee58be6aa1713bf9
SHA256

954f8c802c2dff2bcd7712c2a7a89b1f566eb76d347a7f9cb3b4a2a21832dd45
SHA512

d2c848e16bb5654a429918bf2ac3f4703beed3593e53be2b1e0b397fe8a1772245ff7dce7faedb9d23fe8d84d152f1aa91dcfcf5f8fd9323d7f8a9683608cf04
SSDEEP

98304:Hziv6BKfqznyVk+y4LxwpYizyk1VuXNR2lD9tDoe1NGdWrzrzmYrK:mv6B7VYDk1VuTm9xoe+on

Score

10^/10

taurus credential_access discovery evasion spyware stealer themida 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
behavioral2/memory/4292-7-0x0000000000250000-0x0000000000BF2000-memory.dmp	family_taurus_stealer
behavioral2/memory/4292-10-0x0000000000250000-0x0000000000BF2000-memory.dmp	family_taurus_stealer
behavioral2/memory/4292-8-0x0000000000250000-0x0000000000BF2000-memory.dmp	family_taurus_stealer
behavioral2/memory/4292-9-0x0000000000250000-0x0000000000BF2000-memory.dmp	family_taurus_stealer
behavioral2/memory/4292-11-0x0000000000250000-0x0000000000BF2000-memory.dmp	family_taurus_stealer
behavioral2/memory/4292-13-0x0000000000250000-0x0000000000BF2000-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

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	f1bb608fc3469071c9e53176a8ed4b1c_JaffaCakes118.exe

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	f1bb608fc3469071c9e53176a8ed4b1c_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	f1bb608fc3469071c9e53176a8ed4b1c_JaffaCakes118.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

Themida packer 8 IoCs

Detects Themida, an advanced Windows software protection system.

themida

resource	yara_rule
behavioral2/memory/4292-0-0x0000000000250000-0x0000000000BF2000-memory.dmp	themida
behavioral2/memory/4292-3-0x0000000000250000-0x0000000000BF2000-memory.dmp	themida
behavioral2/memory/4292-7-0x0000000000250000-0x0000000000BF2000-memory.dmp	themida
behavioral2/memory/4292-10-0x0000000000250000-0x0000000000BF2000-memory.dmp	themida
behavioral2/memory/4292-8-0x0000000000250000-0x0000000000BF2000-memory.dmp	themida
behavioral2/memory/4292-9-0x0000000000250000-0x0000000000BF2000-memory.dmp	themida
behavioral2/memory/4292-11-0x0000000000250000-0x0000000000BF2000-memory.dmp	themida
behavioral2/memory/4292-13-0x0000000000250000-0x0000000000BF2000-memory.dmp	themida

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

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	f1bb608fc3469071c9e53176a8ed4b1c_JaffaCakes118.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
4292	f1bb608fc3469071c9e53176a8ed4b1c_JaffaCakes118.exe

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	f1bb608fc3469071c9e53176a8ed4b1c_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
2728	timeout.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4292 wrote to memory of 5060	4292	f1bb608fc3469071c9e53176a8ed4b1c_JaffaCakes118.exe	84
PID 4292 wrote to memory of 5060	4292	f1bb608fc3469071c9e53176a8ed4b1c_JaffaCakes118.exe	84
PID 4292 wrote to memory of 5060	4292	f1bb608fc3469071c9e53176a8ed4b1c_JaffaCakes118.exe	84
PID 5060 wrote to memory of 2728	5060	cmd.exe	86
PID 5060 wrote to memory of 2728	5060	cmd.exe	86
PID 5060 wrote to memory of 2728	5060	cmd.exe	86

C:\Users\Admin\AppData\Local\Temp\f1bb608fc3469071c9e53176a8ed4b1c_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f1bb608fc3469071c9e53176a8ed4b1c_JaffaCakes118.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4292
- C:\Windows\SysWOW64\cmd.exe
  /c timeout /t 3 & del /f /q C:\Users\Admin\AppData\Local\Temp\f1bb608fc3469071c9e53176a8ed4b1c_JaffaCakes118.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:5060
- - C:\Windows\SysWOW64\timeout.exe
    timeout /t 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:2728

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

1

T1497

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 Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Virtualization/Sandbox Evasion

1

T1497

Lateral Movement

Collection

Data from Local System

3

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/4292-0-0x0000000000250000-0x0000000000BF2000-memory.dmp

Filesize
9.6MB

Download
memory/4292-3-0x0000000000250000-0x0000000000BF2000-memory.dmp

Filesize
9.6MB

Download
memory/4292-6-0x0000000077374000-0x0000000077376000-memory.dmp

Filesize
8KB

Download
memory/4292-7-0x0000000000250000-0x0000000000BF2000-memory.dmp

Filesize
9.6MB

Download
memory/4292-10-0x0000000000250000-0x0000000000BF2000-memory.dmp

Filesize
9.6MB

Download
memory/4292-8-0x0000000000250000-0x0000000000BF2000-memory.dmp

Filesize
9.6MB

Download
memory/4292-9-0x0000000000250000-0x0000000000BF2000-memory.dmp

Filesize
9.6MB

Download
memory/4292-11-0x0000000000250000-0x0000000000BF2000-memory.dmp

Filesize
9.6MB

Download
memory/4292-13-0x0000000000250000-0x0000000000BF2000-memory.dmp

Filesize
9.6MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads