blustealer | ecb3d88e4ad2cbd22a6d888de32ef236e217b25101123a4767b11656e23ed1ba

General

Target

1fc2c7b3f3a14a3000e0987519317194f397340352ce23b12e7ae1bcfbb75c51.exe
Size

852KB
MD5

d42cd95f4bc95f02825a48054c2bc1d2
SHA1

edf9a330fe6a0ab953097a573e171ea9a40fe40d
SHA256

1fc2c7b3f3a14a3000e0987519317194f397340352ce23b12e7ae1bcfbb75c51
SHA512

ead96568d9707a246ae310737daa2fd7edf4f4c991d339eb8e20ecba7d32705b4ea6893c26f53d9c1520d1391b63e5b0faedaf69385473314afd21297c156cfd
SSDEEP

12288:eH4XxAtOc6iyk7k27IB9mxzMefPXgq1fQu+78rjuLdvWhgzigSLwkVy5A5I4h:j6Uc6i9IKcpeXRdQD0j65egSLlyO5IK

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-1-5-21-2961826002-3968192592-354541192-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-2961826002-3968192592-354541192-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-2961826002-3968192592-354541192-1000\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 1416 set thread context of 1112	1416	1fc2c7b3f3a14a3000e0987519317194f397340352ce23b12e7ae1bcfbb75c51.exe	28
PID 1112 set thread context of 688	1112	1fc2c7b3f3a14a3000e0987519317194f397340352ce23b12e7ae1bcfbb75c51.exe	29

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

System Information Discovery
T1082

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1112	1fc2c7b3f3a14a3000e0987519317194f397340352ce23b12e7ae1bcfbb75c51.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 1416 wrote to memory of 1112	1416	1fc2c7b3f3a14a3000e0987519317194f397340352ce23b12e7ae1bcfbb75c51.exe	28
PID 1416 wrote to memory of 1112	1416	1fc2c7b3f3a14a3000e0987519317194f397340352ce23b12e7ae1bcfbb75c51.exe	28
PID 1416 wrote to memory of 1112	1416	1fc2c7b3f3a14a3000e0987519317194f397340352ce23b12e7ae1bcfbb75c51.exe	28
PID 1416 wrote to memory of 1112	1416	1fc2c7b3f3a14a3000e0987519317194f397340352ce23b12e7ae1bcfbb75c51.exe	28
PID 1416 wrote to memory of 1112	1416	1fc2c7b3f3a14a3000e0987519317194f397340352ce23b12e7ae1bcfbb75c51.exe	28
PID 1416 wrote to memory of 1112	1416	1fc2c7b3f3a14a3000e0987519317194f397340352ce23b12e7ae1bcfbb75c51.exe	28
PID 1416 wrote to memory of 1112	1416	1fc2c7b3f3a14a3000e0987519317194f397340352ce23b12e7ae1bcfbb75c51.exe	28
PID 1416 wrote to memory of 1112	1416	1fc2c7b3f3a14a3000e0987519317194f397340352ce23b12e7ae1bcfbb75c51.exe	28
PID 1416 wrote to memory of 1112	1416	1fc2c7b3f3a14a3000e0987519317194f397340352ce23b12e7ae1bcfbb75c51.exe	28
PID 1112 wrote to memory of 688	1112	1fc2c7b3f3a14a3000e0987519317194f397340352ce23b12e7ae1bcfbb75c51.exe	29
PID 1112 wrote to memory of 688	1112	1fc2c7b3f3a14a3000e0987519317194f397340352ce23b12e7ae1bcfbb75c51.exe	29
PID 1112 wrote to memory of 688	1112	1fc2c7b3f3a14a3000e0987519317194f397340352ce23b12e7ae1bcfbb75c51.exe	29
PID 1112 wrote to memory of 688	1112	1fc2c7b3f3a14a3000e0987519317194f397340352ce23b12e7ae1bcfbb75c51.exe	29
PID 1112 wrote to memory of 688	1112	1fc2c7b3f3a14a3000e0987519317194f397340352ce23b12e7ae1bcfbb75c51.exe	29
PID 1112 wrote to memory of 688	1112	1fc2c7b3f3a14a3000e0987519317194f397340352ce23b12e7ae1bcfbb75c51.exe	29
PID 1112 wrote to memory of 688	1112	1fc2c7b3f3a14a3000e0987519317194f397340352ce23b12e7ae1bcfbb75c51.exe	29
PID 1112 wrote to memory of 688	1112	1fc2c7b3f3a14a3000e0987519317194f397340352ce23b12e7ae1bcfbb75c51.exe	29
PID 1112 wrote to memory of 688	1112	1fc2c7b3f3a14a3000e0987519317194f397340352ce23b12e7ae1bcfbb75c51.exe	29

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2961826002-3968192592-354541192-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2961826002-3968192592-354541192-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\1fc2c7b3f3a14a3000e0987519317194f397340352ce23b12e7ae1bcfbb75c51.exe
"C:\Users\Admin\AppData\Local\Temp\1fc2c7b3f3a14a3000e0987519317194f397340352ce23b12e7ae1bcfbb75c51.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1416
- C:\Users\Admin\AppData\Local\Temp\1fc2c7b3f3a14a3000e0987519317194f397340352ce23b12e7ae1bcfbb75c51.exe
  "C:\Users\Admin\AppData\Local\Temp\1fc2c7b3f3a14a3000e0987519317194f397340352ce23b12e7ae1bcfbb75c51.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1112
- - 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:688

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/688-73-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/688-79-0x0000000004510000-0x00000000045CC000-memory.dmp

Filesize
752KB

Download
memory/688-78-0x0000000000090000-0x00000000000F6000-memory.dmp

Filesize
408KB

Download
memory/688-76-0x0000000000090000-0x00000000000F6000-memory.dmp

Filesize
408KB

Download
memory/688-74-0x0000000000090000-0x00000000000F6000-memory.dmp

Filesize
408KB

Download
memory/688-72-0x0000000000090000-0x00000000000F6000-memory.dmp

Filesize
408KB

Download
memory/1112-65-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1112-80-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/1112-62-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/1112-63-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/1112-61-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/1112-66-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/1112-68-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/1112-71-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/1416-54-0x0000000001290000-0x000000000136C000-memory.dmp

Filesize
880KB

Download
memory/1416-59-0x0000000005880000-0x000000000592C000-memory.dmp

Filesize
688KB

Download
memory/1416-58-0x0000000000910000-0x000000000091C000-memory.dmp

Filesize
48KB

Download
memory/1416-57-0x0000000001200000-0x0000000001240000-memory.dmp

Filesize
256KB

Download
memory/1416-56-0x00000000008F0000-0x0000000000900000-memory.dmp

Filesize
64KB

Download
memory/1416-55-0x0000000001200000-0x0000000001240000-memory.dmp

Filesize
256KB

Download
memory/1416-60-0x0000000005500000-0x0000000005576000-memory.dmp

Filesize
472KB

Download

Analysis

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