taurus | 8523a03188911d6b07fd467ae4a6df79a139c746345031941a8b4a6da369275f

General

Target

971c48d6dc3f593485bf2577266d2da7_JaffaCakes118.exe
Size

720KB
MD5

971c48d6dc3f593485bf2577266d2da7
SHA1

a9d1b83dd950414be286ec41365ac9b6bfe1bcbf
SHA256

8523a03188911d6b07fd467ae4a6df79a139c746345031941a8b4a6da369275f
SHA512

89229a9e4fb51ef1e7aba83703bd08677a59c416136cb6d5c5df0804e4481c48d655bbc394295eb1858a2de0994e63b3daf67ed9678bc948be4aa6b159606819
SSDEEP

12288:/A/0RfgflKmr0vUL38evxpPhbxaC4DmYiG3L:Ixf0GLPfEiGb

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 7 IoCs

resource	yara_rule
behavioral1/memory/2580-11-0x0000000000400000-0x0000000000431000-memory.dmp	family_taurus_stealer
behavioral1/memory/2580-21-0x0000000000400000-0x0000000000431000-memory.dmp	family_taurus_stealer
behavioral1/memory/2580-22-0x0000000000400000-0x0000000000431000-memory.dmp	family_taurus_stealer
behavioral1/memory/2580-19-0x0000000000400000-0x0000000000431000-memory.dmp	family_taurus_stealer
behavioral1/memory/2580-15-0x0000000000400000-0x0000000000431000-memory.dmp	family_taurus_stealer
behavioral1/memory/2580-13-0x0000000000400000-0x0000000000431000-memory.dmp	family_taurus_stealer
behavioral1/memory/2580-148-0x0000000000400000-0x0000000000431000-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
2628	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
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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1832 set thread context of 2580	1832	971c48d6dc3f593485bf2577266d2da7_JaffaCakes118.exe	30

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217

System Location Discovery: System Language Discovery 1 TTPs 4 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	971c48d6dc3f593485bf2577266d2da7_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	971c48d6dc3f593485bf2577266d2da7_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
1748	timeout.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1832	971c48d6dc3f593485bf2577266d2da7_JaffaCakes118.exe
1832	971c48d6dc3f593485bf2577266d2da7_JaffaCakes118.exe
1832	971c48d6dc3f593485bf2577266d2da7_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1832	971c48d6dc3f593485bf2577266d2da7_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 1832 wrote to memory of 2580	1832	971c48d6dc3f593485bf2577266d2da7_JaffaCakes118.exe	30
PID 1832 wrote to memory of 2580	1832	971c48d6dc3f593485bf2577266d2da7_JaffaCakes118.exe	30
PID 1832 wrote to memory of 2580	1832	971c48d6dc3f593485bf2577266d2da7_JaffaCakes118.exe	30
PID 1832 wrote to memory of 2580	1832	971c48d6dc3f593485bf2577266d2da7_JaffaCakes118.exe	30
PID 1832 wrote to memory of 2580	1832	971c48d6dc3f593485bf2577266d2da7_JaffaCakes118.exe	30
PID 1832 wrote to memory of 2580	1832	971c48d6dc3f593485bf2577266d2da7_JaffaCakes118.exe	30
PID 1832 wrote to memory of 2580	1832	971c48d6dc3f593485bf2577266d2da7_JaffaCakes118.exe	30
PID 1832 wrote to memory of 2580	1832	971c48d6dc3f593485bf2577266d2da7_JaffaCakes118.exe	30
PID 1832 wrote to memory of 2580	1832	971c48d6dc3f593485bf2577266d2da7_JaffaCakes118.exe	30
PID 1832 wrote to memory of 2580	1832	971c48d6dc3f593485bf2577266d2da7_JaffaCakes118.exe	30
PID 2580 wrote to memory of 2628	2580	971c48d6dc3f593485bf2577266d2da7_JaffaCakes118.exe	32
PID 2580 wrote to memory of 2628	2580	971c48d6dc3f593485bf2577266d2da7_JaffaCakes118.exe	32
PID 2580 wrote to memory of 2628	2580	971c48d6dc3f593485bf2577266d2da7_JaffaCakes118.exe	32
PID 2580 wrote to memory of 2628	2580	971c48d6dc3f593485bf2577266d2da7_JaffaCakes118.exe	32
PID 2628 wrote to memory of 1748	2628	cmd.exe	34
PID 2628 wrote to memory of 1748	2628	cmd.exe	34
PID 2628 wrote to memory of 1748	2628	cmd.exe	34
PID 2628 wrote to memory of 1748	2628	cmd.exe	34

C:\Users\Admin\AppData\Local\Temp\971c48d6dc3f593485bf2577266d2da7_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\971c48d6dc3f593485bf2577266d2da7_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1832
- C:\Users\Admin\AppData\Local\Temp\971c48d6dc3f593485bf2577266d2da7_JaffaCakes118.exe
  "{path}"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2580
- - C:\Windows\SysWOW64\cmd.exe
    /c timeout /t 3 & del /f /q C:\Users\Admin\AppData\Local\Temp\971c48d6dc3f593485bf2577266d2da7_JaffaCakes118.exe
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2628
  - - C:\Windows\SysWOW64\timeout.exe
      timeout /t 3
      4⤵
      System Location Discovery: System Language Discovery
      Delays execution with timeout.exe
      PID:1748

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

2

T1552

Credentials In Files

1

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

2

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\Cab9DD7.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\Temp\TarA9AC.tmp

Filesize
181KB

MD5
4ea6026cf93ec6338144661bf1202cd1

SHA1
a1dec9044f750ad887935a01430bf49322fbdcb7

SHA256
8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

SHA512
6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

Download Submit
memory/1832-0-0x00000000740AE000-0x00000000740AF000-memory.dmp

Filesize
4KB

Download
memory/1832-1-0x00000000008F0000-0x00000000009AA000-memory.dmp

Filesize
744KB

Download
memory/1832-2-0x00000000740A0000-0x000000007478E000-memory.dmp

Filesize
6.9MB

Download
memory/1832-3-0x0000000000370000-0x000000000037A000-memory.dmp

Filesize
40KB

Download
memory/1832-4-0x00000000740A0000-0x000000007478E000-memory.dmp

Filesize
6.9MB

Download
memory/1832-5-0x00000000009B0000-0x0000000000A14000-memory.dmp

Filesize
400KB

Download
memory/1832-6-0x0000000000A20000-0x0000000000A5E000-memory.dmp

Filesize
248KB

Download
memory/1832-23-0x00000000740A0000-0x000000007478E000-memory.dmp

Filesize
6.9MB

Download
memory/2580-22-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download
memory/2580-19-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download
memory/2580-17-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2580-15-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download
memory/2580-13-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download
memory/2580-9-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download
memory/2580-21-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download
memory/2580-11-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download
memory/2580-7-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download
memory/2580-148-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download

Analysis

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