blustealer | 1e712ef0a37d9e8d2f6ef512da2438ef05e073cde9ae6677858b9ebbd1c23b2b

General

Target

SecuriteInfo.com.Win32.RATXgen.24211.32173.exe
Size

1.1MB
MD5

30109593131c48efe8a355f8b387dd4a
SHA1

f6d8e1eb36925ceb97024cfe2d71f3573d72a202
SHA256

1e712ef0a37d9e8d2f6ef512da2438ef05e073cde9ae6677858b9ebbd1c23b2b
SHA512

d21fa1aaca986b5b72bb6ea9f3e2da13096b38d690f1df5ec03ef8b862909f351476a032f081afb53c409a7fb189e7f7eeb324b9ce1ebfb86727a576275b9ade
SSDEEP

24576:0ylUKXJnc1+6N1CySVIJq0UZbZctLsAKb6ah:0y+K5m+ISVIJTGbetLxKb6e

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-1-5-21-1914912747-3343861975-731272777-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1240 set thread context of 1728	1240	SecuriteInfo.com.Win32.RATXgen.24211.32173.exe	28
PID 1728 set thread context of 1748	1728	SecuriteInfo.com.Win32.RATXgen.24211.32173.exe	29

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1240	SecuriteInfo.com.Win32.RATXgen.24211.32173.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1240	SecuriteInfo.com.Win32.RATXgen.24211.32173.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1728	SecuriteInfo.com.Win32.RATXgen.24211.32173.exe

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 1240 wrote to memory of 1292	1240	SecuriteInfo.com.Win32.RATXgen.24211.32173.exe	27
PID 1240 wrote to memory of 1292	1240	SecuriteInfo.com.Win32.RATXgen.24211.32173.exe	27
PID 1240 wrote to memory of 1292	1240	SecuriteInfo.com.Win32.RATXgen.24211.32173.exe	27
PID 1240 wrote to memory of 1292	1240	SecuriteInfo.com.Win32.RATXgen.24211.32173.exe	27
PID 1240 wrote to memory of 1728	1240	SecuriteInfo.com.Win32.RATXgen.24211.32173.exe	28
PID 1240 wrote to memory of 1728	1240	SecuriteInfo.com.Win32.RATXgen.24211.32173.exe	28
PID 1240 wrote to memory of 1728	1240	SecuriteInfo.com.Win32.RATXgen.24211.32173.exe	28
PID 1240 wrote to memory of 1728	1240	SecuriteInfo.com.Win32.RATXgen.24211.32173.exe	28
PID 1240 wrote to memory of 1728	1240	SecuriteInfo.com.Win32.RATXgen.24211.32173.exe	28
PID 1240 wrote to memory of 1728	1240	SecuriteInfo.com.Win32.RATXgen.24211.32173.exe	28
PID 1240 wrote to memory of 1728	1240	SecuriteInfo.com.Win32.RATXgen.24211.32173.exe	28
PID 1240 wrote to memory of 1728	1240	SecuriteInfo.com.Win32.RATXgen.24211.32173.exe	28
PID 1240 wrote to memory of 1728	1240	SecuriteInfo.com.Win32.RATXgen.24211.32173.exe	28
PID 1728 wrote to memory of 1748	1728	SecuriteInfo.com.Win32.RATXgen.24211.32173.exe	29
PID 1728 wrote to memory of 1748	1728	SecuriteInfo.com.Win32.RATXgen.24211.32173.exe	29
PID 1728 wrote to memory of 1748	1728	SecuriteInfo.com.Win32.RATXgen.24211.32173.exe	29
PID 1728 wrote to memory of 1748	1728	SecuriteInfo.com.Win32.RATXgen.24211.32173.exe	29
PID 1728 wrote to memory of 1748	1728	SecuriteInfo.com.Win32.RATXgen.24211.32173.exe	29
PID 1728 wrote to memory of 1748	1728	SecuriteInfo.com.Win32.RATXgen.24211.32173.exe	29
PID 1728 wrote to memory of 1748	1728	SecuriteInfo.com.Win32.RATXgen.24211.32173.exe	29
PID 1728 wrote to memory of 1748	1728	SecuriteInfo.com.Win32.RATXgen.24211.32173.exe	29
PID 1728 wrote to memory of 1748	1728	SecuriteInfo.com.Win32.RATXgen.24211.32173.exe	29

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.RATXgen.24211.32173.exe
"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.RATXgen.24211.32173.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1240
- C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.RATXgen.24211.32173.exe
  "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.RATXgen.24211.32173.exe"
  2⤵
  PID:1292
- C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.RATXgen.24211.32173.exe
  "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.RATXgen.24211.32173.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1728
- - 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:1748

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/1240-54-0x0000000001350000-0x000000000146A000-memory.dmp

Filesize
1.1MB

Download
memory/1240-55-0x0000000004B50000-0x0000000004B90000-memory.dmp

Filesize
256KB

Download
memory/1240-56-0x0000000000A50000-0x0000000000A62000-memory.dmp

Filesize
72KB

Download
memory/1240-57-0x0000000000BC0000-0x0000000000BCC000-memory.dmp

Filesize
48KB

Download
memory/1240-58-0x00000000056C0000-0x000000000576C000-memory.dmp

Filesize
688KB

Download
memory/1240-59-0x0000000005360000-0x00000000053D6000-memory.dmp

Filesize
472KB

Download
memory/1728-65-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/1728-80-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/1728-62-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/1728-64-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1728-60-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/1728-67-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/1728-70-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/1728-61-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/1748-71-0x0000000000090000-0x00000000000F6000-memory.dmp

Filesize
408KB

Download
memory/1748-73-0x0000000000090000-0x00000000000F6000-memory.dmp

Filesize
408KB

Download
memory/1748-75-0x0000000000090000-0x00000000000F6000-memory.dmp

Filesize
408KB

Download
memory/1748-77-0x0000000000090000-0x00000000000F6000-memory.dmp

Filesize
408KB

Download
memory/1748-78-0x0000000004C10000-0x0000000004CCC000-memory.dmp

Filesize
752KB

Download
memory/1748-79-0x0000000004300000-0x0000000004340000-memory.dmp

Filesize
256KB

Download
memory/1748-72-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download

Analysis

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