blustealer | 90cfa88b710e25a9a1219c67738a891f052a33085a5aca2797524612b016249e

General

Target

SecuriteInfo.com.Win32.PWSX-gen.exe
Size

1.0MB
MD5

f52b4684b9c1d2a390e98098125dd1b4
SHA1

3164c21a75ba0de36200d5ef1cb7ee81c2203a45
SHA256

90cfa88b710e25a9a1219c67738a891f052a33085a5aca2797524612b016249e
SHA512

f53be419d3b36d0df6e748b94032a11468358f1e9f5e50803016567c3b2dc59fa8e287cbbb7320338858e43f413045f5a7662f1f93556a3ba8be3fab6a09e14f
SSDEEP

12288:1zE35FZjxFmdVht9TGclUy7jfV6l53Hk1oJ9fVid6a/g5mLUqrjds118p4QCf:qFWLzTl9Na46fEb/g5ovdNm

Score

10^/10

blustealer collection stealer

Malware Config

Extracted

Family

blustealer

C2

https://api.telegram.org/bot5450700540:AAEJyEEV8BKgYUKmnCPZxp19kD9GVSRup5M/sendMessage?chat_id=5422342474

Signatures

BluStealer
A Modular information stealer written in Visual Basic.
stealer blustealer

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1264 set thread context of 1704	1264	SecuriteInfo.com.Win32.PWSX-gen.exe	28
PID 1704 set thread context of 276	1704	SecuriteInfo.com.Win32.PWSX-gen.exe	29

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1704	SecuriteInfo.com.Win32.PWSX-gen.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 1264 wrote to memory of 1704	1264	SecuriteInfo.com.Win32.PWSX-gen.exe	28
PID 1264 wrote to memory of 1704	1264	SecuriteInfo.com.Win32.PWSX-gen.exe	28
PID 1264 wrote to memory of 1704	1264	SecuriteInfo.com.Win32.PWSX-gen.exe	28
PID 1264 wrote to memory of 1704	1264	SecuriteInfo.com.Win32.PWSX-gen.exe	28
PID 1264 wrote to memory of 1704	1264	SecuriteInfo.com.Win32.PWSX-gen.exe	28
PID 1264 wrote to memory of 1704	1264	SecuriteInfo.com.Win32.PWSX-gen.exe	28
PID 1264 wrote to memory of 1704	1264	SecuriteInfo.com.Win32.PWSX-gen.exe	28
PID 1264 wrote to memory of 1704	1264	SecuriteInfo.com.Win32.PWSX-gen.exe	28
PID 1264 wrote to memory of 1704	1264	SecuriteInfo.com.Win32.PWSX-gen.exe	28
PID 1704 wrote to memory of 276	1704	SecuriteInfo.com.Win32.PWSX-gen.exe	29
PID 1704 wrote to memory of 276	1704	SecuriteInfo.com.Win32.PWSX-gen.exe	29
PID 1704 wrote to memory of 276	1704	SecuriteInfo.com.Win32.PWSX-gen.exe	29
PID 1704 wrote to memory of 276	1704	SecuriteInfo.com.Win32.PWSX-gen.exe	29
PID 1704 wrote to memory of 276	1704	SecuriteInfo.com.Win32.PWSX-gen.exe	29
PID 1704 wrote to memory of 276	1704	SecuriteInfo.com.Win32.PWSX-gen.exe	29
PID 1704 wrote to memory of 276	1704	SecuriteInfo.com.Win32.PWSX-gen.exe	29
PID 1704 wrote to memory of 276	1704	SecuriteInfo.com.Win32.PWSX-gen.exe	29
PID 1704 wrote to memory of 276	1704	SecuriteInfo.com.Win32.PWSX-gen.exe	29

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.exe
"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1264
- C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.exe
  "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1704
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
    C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
    3⤵
    - Accesses Microsoft Outlook profiles
    - outlook_office_path
    - outlook_win_path
    PID:276

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/276-73-0x0000000000090000-0x00000000000F6000-memory.dmp

Filesize
408KB

Download
memory/276-82-0x0000000004450000-0x000000000450C000-memory.dmp

Filesize
752KB

Download
memory/276-78-0x0000000000090000-0x00000000000F6000-memory.dmp

Filesize
408KB

Download
memory/276-80-0x0000000000090000-0x00000000000F6000-memory.dmp

Filesize
408KB

Download
memory/276-75-0x0000000000090000-0x00000000000F6000-memory.dmp

Filesize
408KB

Download
memory/1264-59-0x0000000008040000-0x000000000810A000-memory.dmp

Filesize
808KB

Download
memory/1264-57-0x00000000004A0000-0x00000000004B4000-memory.dmp

Filesize
80KB

Download
memory/1264-55-0x0000000076711000-0x0000000076713000-memory.dmp

Filesize
8KB

Download
memory/1264-56-0x0000000000450000-0x0000000000464000-memory.dmp

Filesize
80KB

Download
memory/1264-58-0x00000000004D0000-0x00000000004DC000-memory.dmp

Filesize
48KB

Download
memory/1264-54-0x0000000000D60000-0x0000000000E72000-memory.dmp

Filesize
1.1MB

Download
memory/1264-60-0x0000000004E70000-0x0000000004EE4000-memory.dmp

Filesize
464KB

Download
memory/1704-69-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/1704-66-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/1704-61-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/1704-64-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/1704-62-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/1704-83-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/1704-84-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download

Analysis

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