taurus | ef63f7d8705ef291353ebbaf3d7661ef8f28cdc3d7cbded767af7b24dfde44f0

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
14-08-2024 09:15

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General

Target

9578320a570a9418287a43973257e90f_JaffaCakes118.exe
Size

4.8MB
MD5

9578320a570a9418287a43973257e90f
SHA1

52f78edd0760a78553057aac1c773ac995f71071
SHA256

ef63f7d8705ef291353ebbaf3d7661ef8f28cdc3d7cbded767af7b24dfde44f0
SHA512

5c9a7e3aaf464c92444cc356872980f631c2c43edab97b405c720d97f1120720fad47b5401395755488c6cfae16c60697ff615da8c95d7fba2b89dfd94541442
SSDEEP

98304:Hrsj7jgiqLTLBerVAqqBPTec3lHdfVX0erUM5s/:L6ja3BKAjNvVEer

Score

10^/10

taurus credential_access discovery evasion spyware stealer themida trojan vmprotect

Malware Config

Signatures

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

Taurus Stealer payload 8 IoCs

resource	yara_rule
behavioral1/memory/3044-9-0x00000000002A0000-0x0000000000CB9000-memory.dmp	family_taurus_stealer
behavioral1/memory/3044-12-0x00000000002A0000-0x0000000000CB9000-memory.dmp	family_taurus_stealer
behavioral1/memory/3044-11-0x00000000002A0000-0x0000000000CB9000-memory.dmp	family_taurus_stealer
behavioral1/memory/3044-8-0x00000000002A0000-0x0000000000CB9000-memory.dmp	family_taurus_stealer
behavioral1/memory/3044-10-0x00000000002A0000-0x0000000000CB9000-memory.dmp	family_taurus_stealer
behavioral1/memory/3044-13-0x00000000002A0000-0x0000000000CB9000-memory.dmp	family_taurus_stealer
behavioral1/memory/3044-14-0x00000000002A0000-0x0000000000CB9000-memory.dmp	family_taurus_stealer
behavioral1/memory/3044-17-0x00000000002A0000-0x0000000000CB9000-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__	9578320a570a9418287a43973257e90f_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\VideoBiosVersion	9578320a570a9418287a43973257e90f_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	9578320a570a9418287a43973257e90f_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
1472	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

Themida packer 10 IoCs

Detects Themida, an advanced Windows software protection system.

themida

resource	yara_rule
behavioral1/memory/3044-0-0x00000000002A0000-0x0000000000CB9000-memory.dmp	themida
behavioral1/memory/3044-1-0x00000000002A0000-0x0000000000CB9000-memory.dmp	themida
behavioral1/memory/3044-9-0x00000000002A0000-0x0000000000CB9000-memory.dmp	themida
behavioral1/memory/3044-12-0x00000000002A0000-0x0000000000CB9000-memory.dmp	themida
behavioral1/memory/3044-11-0x00000000002A0000-0x0000000000CB9000-memory.dmp	themida
behavioral1/memory/3044-8-0x00000000002A0000-0x0000000000CB9000-memory.dmp	themida
behavioral1/memory/3044-10-0x00000000002A0000-0x0000000000CB9000-memory.dmp	themida
behavioral1/memory/3044-13-0x00000000002A0000-0x0000000000CB9000-memory.dmp	themida
behavioral1/memory/3044-14-0x00000000002A0000-0x0000000000CB9000-memory.dmp	themida
behavioral1/memory/3044-17-0x00000000002A0000-0x0000000000CB9000-memory.dmp	themida

VMProtect packed file 10 IoCs

Detects executables packed with VMProtect commercial packer.

vmprotect

resource	yara_rule
behavioral1/memory/3044-0-0x00000000002A0000-0x0000000000CB9000-memory.dmp	vmprotect
behavioral1/memory/3044-1-0x00000000002A0000-0x0000000000CB9000-memory.dmp	vmprotect
behavioral1/memory/3044-9-0x00000000002A0000-0x0000000000CB9000-memory.dmp	vmprotect
behavioral1/memory/3044-12-0x00000000002A0000-0x0000000000CB9000-memory.dmp	vmprotect
behavioral1/memory/3044-11-0x00000000002A0000-0x0000000000CB9000-memory.dmp	vmprotect
behavioral1/memory/3044-8-0x00000000002A0000-0x0000000000CB9000-memory.dmp	vmprotect
behavioral1/memory/3044-10-0x00000000002A0000-0x0000000000CB9000-memory.dmp	vmprotect
behavioral1/memory/3044-13-0x00000000002A0000-0x0000000000CB9000-memory.dmp	vmprotect
behavioral1/memory/3044-14-0x00000000002A0000-0x0000000000CB9000-memory.dmp	vmprotect
behavioral1/memory/3044-17-0x00000000002A0000-0x0000000000CB9000-memory.dmp	vmprotect

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	9578320a570a9418287a43973257e90f_JaffaCakes118.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
3044	9578320a570a9418287a43973257e90f_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	9578320a570a9418287a43973257e90f_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
2856	timeout.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3044 wrote to memory of 1472	3044	9578320a570a9418287a43973257e90f_JaffaCakes118.exe	35
PID 3044 wrote to memory of 1472	3044	9578320a570a9418287a43973257e90f_JaffaCakes118.exe	35
PID 3044 wrote to memory of 1472	3044	9578320a570a9418287a43973257e90f_JaffaCakes118.exe	35
PID 3044 wrote to memory of 1472	3044	9578320a570a9418287a43973257e90f_JaffaCakes118.exe	35
PID 1472 wrote to memory of 2856	1472	cmd.exe	37
PID 1472 wrote to memory of 2856	1472	cmd.exe	37
PID 1472 wrote to memory of 2856	1472	cmd.exe	37
PID 1472 wrote to memory of 2856	1472	cmd.exe	37

C:\Users\Admin\AppData\Local\Temp\9578320a570a9418287a43973257e90f_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\9578320a570a9418287a43973257e90f_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:3044
- C:\Windows\SysWOW64\cmd.exe
  /c timeout /t 3 & del /f /q C:\Users\Admin\AppData\Local\Temp\9578320a570a9418287a43973257e90f_JaffaCakes118.exe
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1472
- - C:\Windows\SysWOW64\timeout.exe
    timeout /t 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:2856

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Credentials in Registry

T1552.002

Discovery

Browser Information Discovery

T1217

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

memory/3044-0-0x00000000002A0000-0x0000000000CB9000-memory.dmp

Filesize
10.1MB

Download
memory/3044-1-0x00000000002A0000-0x0000000000CB9000-memory.dmp

Filesize
10.1MB

Download
memory/3044-9-0x00000000002A0000-0x0000000000CB9000-memory.dmp

Filesize
10.1MB

Download
memory/3044-12-0x00000000002A0000-0x0000000000CB9000-memory.dmp

Filesize
10.1MB

Download
memory/3044-11-0x00000000002A0000-0x0000000000CB9000-memory.dmp

Filesize
10.1MB

Download
memory/3044-8-0x00000000002A0000-0x0000000000CB9000-memory.dmp

Filesize
10.1MB

Download
memory/3044-10-0x00000000002A0000-0x0000000000CB9000-memory.dmp

Filesize
10.1MB

Download
memory/3044-7-0x0000000077BA0000-0x0000000077BA2000-memory.dmp

Filesize
8KB

Download
memory/3044-13-0x00000000002A0000-0x0000000000CB9000-memory.dmp

Filesize
10.1MB

Download
memory/3044-14-0x00000000002A0000-0x0000000000CB9000-memory.dmp

Filesize
10.1MB

Download
memory/3044-17-0x00000000002A0000-0x0000000000CB9000-memory.dmp

Filesize
10.1MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads