blustealer | 02a0b1c2cdeed6baf61d6e94cef63361c46607817ff7ae7ae0fc870471737e68

General

Target

01504654567e766fae3aa3032bd6961f.exe
Size

278KB
MD5

01504654567e766fae3aa3032bd6961f
SHA1

b1e527d712ede2057172b54178367f8a844f7183
SHA256

02a0b1c2cdeed6baf61d6e94cef63361c46607817ff7ae7ae0fc870471737e68
SHA512

54644c1b1c92dc4c923b225a351cbcafb469c8c35cc186f97bd7014af32a8e162d8d8b4e57515faac2a17e99fe9035f1e6208f81dbc5a962e9ac9e0743f847fc
SSDEEP

6144:lmlBUNYOACHBwA4Oav5Atl40KBeQDhfdmWA:wlBUOCHBIAlCBeiU/

Score

10^/10

blustealer collection stealer

Malware Config

Extracted

Family

blustealer

C2

https://api.telegram.org/bot5351997584:AAEyh4aj9rNp8tJtHYZqoYG-PSzq-z5M18M/sendMessage?chat_id=1374455932

Signatures

BluStealer
A Modular information stealer written in Visual Basic.
stealer blustealer
Downloads MZ/PE file

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 536 set thread context of 2036	536	01504654567e766fae3aa3032bd6961f.exe	27
PID 2036 set thread context of 892	2036	RegAsm.exe	28

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 AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	536	01504654567e766fae3aa3032bd6961f.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2036	RegAsm.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 536 wrote to memory of 2036	536	01504654567e766fae3aa3032bd6961f.exe	27
PID 536 wrote to memory of 2036	536	01504654567e766fae3aa3032bd6961f.exe	27
PID 536 wrote to memory of 2036	536	01504654567e766fae3aa3032bd6961f.exe	27
PID 536 wrote to memory of 2036	536	01504654567e766fae3aa3032bd6961f.exe	27
PID 536 wrote to memory of 2036	536	01504654567e766fae3aa3032bd6961f.exe	27
PID 536 wrote to memory of 2036	536	01504654567e766fae3aa3032bd6961f.exe	27
PID 536 wrote to memory of 2036	536	01504654567e766fae3aa3032bd6961f.exe	27
PID 536 wrote to memory of 2036	536	01504654567e766fae3aa3032bd6961f.exe	27
PID 536 wrote to memory of 2036	536	01504654567e766fae3aa3032bd6961f.exe	27
PID 536 wrote to memory of 2036	536	01504654567e766fae3aa3032bd6961f.exe	27
PID 536 wrote to memory of 2036	536	01504654567e766fae3aa3032bd6961f.exe	27
PID 536 wrote to memory of 2036	536	01504654567e766fae3aa3032bd6961f.exe	27
PID 2036 wrote to memory of 892	2036	RegAsm.exe	28
PID 2036 wrote to memory of 892	2036	RegAsm.exe	28
PID 2036 wrote to memory of 892	2036	RegAsm.exe	28
PID 2036 wrote to memory of 892	2036	RegAsm.exe	28
PID 2036 wrote to memory of 892	2036	RegAsm.exe	28
PID 2036 wrote to memory of 892	2036	RegAsm.exe	28
PID 2036 wrote to memory of 892	2036	RegAsm.exe	28
PID 2036 wrote to memory of 892	2036	RegAsm.exe	28
PID 2036 wrote to memory of 892	2036	RegAsm.exe	28

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\01504654567e766fae3aa3032bd6961f.exe
"C:\Users\Admin\AppData\Local\Temp\01504654567e766fae3aa3032bd6961f.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:536
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2036
- - 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:892

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/536-55-0x0000000076831000-0x0000000076833000-memory.dmp

Filesize
8KB

Download
memory/536-56-0x0000000000560000-0x0000000000584000-memory.dmp

Filesize
144KB

Download
memory/536-54-0x00000000001E0000-0x000000000022C000-memory.dmp

Filesize
304KB

Download
memory/892-69-0x00000000000D0000-0x0000000000136000-memory.dmp

Filesize
408KB

Download
memory/892-78-0x0000000004330000-0x00000000043EC000-memory.dmp

Filesize
752KB

Download
memory/892-76-0x00000000000D0000-0x0000000000136000-memory.dmp

Filesize
408KB

Download
memory/892-74-0x00000000000D0000-0x0000000000136000-memory.dmp

Filesize
408KB

Download
memory/892-71-0x00000000000D0000-0x0000000000136000-memory.dmp

Filesize
408KB

Download
memory/2036-58-0x0000000000400000-0x000000000046D000-memory.dmp

Filesize
436KB

Download
memory/2036-65-0x0000000000400000-0x000000000046D000-memory.dmp

Filesize
436KB

Download
memory/2036-62-0x0000000000400000-0x000000000046D000-memory.dmp

Filesize
436KB

Download
memory/2036-60-0x0000000000400000-0x000000000046D000-memory.dmp

Filesize
436KB

Download
memory/2036-57-0x0000000000400000-0x000000000046D000-memory.dmp

Filesize
436KB

Download
memory/2036-79-0x0000000000400000-0x000000000046D000-memory.dmp

Filesize
436KB

Download
memory/2036-80-0x0000000000400000-0x000000000046D000-memory.dmp

Filesize
436KB

Download

Analysis

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