blustealer | 1e712ef0a37d9e8d2f6ef512da2438ef05e073cde9ae6677858b9ebbd1c23b2b

General

Target

SecuriteInfo.com.Win32.RATX-gen.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-1-5-21-4238149048-355649189-894321705-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1476 set thread context of 3888	1476	SecuriteInfo.com.Win32.RATX-gen.24211.32173.exe	92
PID 3888 set thread context of 3776	3888	SecuriteInfo.com.Win32.RATX-gen.24211.32173.exe	93

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

System Information Discovery
T1082

Script User-Agent 1 IoCs

Uses user-agent string associated with script host/environment.

description	flow	ioc
HTTP User-Agent header	42	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1476	SecuriteInfo.com.Win32.RATX-gen.24211.32173.exe
1476	SecuriteInfo.com.Win32.RATX-gen.24211.32173.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1476	SecuriteInfo.com.Win32.RATX-gen.24211.32173.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3888	SecuriteInfo.com.Win32.RATX-gen.24211.32173.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 1476 wrote to memory of 3404	1476	SecuriteInfo.com.Win32.RATX-gen.24211.32173.exe	91
PID 1476 wrote to memory of 3404	1476	SecuriteInfo.com.Win32.RATX-gen.24211.32173.exe	91
PID 1476 wrote to memory of 3404	1476	SecuriteInfo.com.Win32.RATX-gen.24211.32173.exe	91
PID 1476 wrote to memory of 3888	1476	SecuriteInfo.com.Win32.RATX-gen.24211.32173.exe	92
PID 1476 wrote to memory of 3888	1476	SecuriteInfo.com.Win32.RATX-gen.24211.32173.exe	92
PID 1476 wrote to memory of 3888	1476	SecuriteInfo.com.Win32.RATX-gen.24211.32173.exe	92
PID 1476 wrote to memory of 3888	1476	SecuriteInfo.com.Win32.RATX-gen.24211.32173.exe	92
PID 1476 wrote to memory of 3888	1476	SecuriteInfo.com.Win32.RATX-gen.24211.32173.exe	92
PID 1476 wrote to memory of 3888	1476	SecuriteInfo.com.Win32.RATX-gen.24211.32173.exe	92
PID 1476 wrote to memory of 3888	1476	SecuriteInfo.com.Win32.RATX-gen.24211.32173.exe	92
PID 1476 wrote to memory of 3888	1476	SecuriteInfo.com.Win32.RATX-gen.24211.32173.exe	92
PID 3888 wrote to memory of 3776	3888	SecuriteInfo.com.Win32.RATX-gen.24211.32173.exe	93
PID 3888 wrote to memory of 3776	3888	SecuriteInfo.com.Win32.RATX-gen.24211.32173.exe	93
PID 3888 wrote to memory of 3776	3888	SecuriteInfo.com.Win32.RATX-gen.24211.32173.exe	93
PID 3888 wrote to memory of 3776	3888	SecuriteInfo.com.Win32.RATX-gen.24211.32173.exe	93
PID 3888 wrote to memory of 3776	3888	SecuriteInfo.com.Win32.RATX-gen.24211.32173.exe	93

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.RATX-gen.24211.32173.exe
"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.RATX-gen.24211.32173.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1476
- C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.RATX-gen.24211.32173.exe
  "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.RATX-gen.24211.32173.exe"
  2⤵
  PID:3404
- C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.RATX-gen.24211.32173.exe
  "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.RATX-gen.24211.32173.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3888
- - 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:3776

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/1476-133-0x0000000000510000-0x000000000062A000-memory.dmp

Filesize
1.1MB

Download
memory/1476-134-0x00000000055A0000-0x0000000005B44000-memory.dmp

Filesize
5.6MB

Download
memory/1476-135-0x0000000004FF0000-0x0000000005082000-memory.dmp

Filesize
584KB

Download
memory/1476-136-0x00000000054D0000-0x00000000054DA000-memory.dmp

Filesize
40KB

Download
memory/1476-137-0x0000000004F90000-0x0000000004FA0000-memory.dmp

Filesize
64KB

Download
memory/1476-138-0x0000000004F90000-0x0000000004FA0000-memory.dmp

Filesize
64KB

Download
memory/1476-139-0x0000000007230000-0x00000000072CC000-memory.dmp

Filesize
624KB

Download
memory/3776-147-0x0000000000580000-0x00000000005E6000-memory.dmp

Filesize
408KB

Download
memory/3888-140-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/3888-143-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/3888-146-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/3888-149-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download

Analysis

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