blustealer | 45c0d4c42e3d98c94d5ae01270b7b0adfe3de2454520fa7b423f0fc9e2f49603

General

Target

45c0d4c42e3d98c94d5ae01270b7b0adfe3de2454520fa7b423f0fc9e2f49603.exe
Size

1024KB
MD5

a1effb2cfe2a999d25a2f16a3271b0ec
SHA1

68752a3d1b5c2837829f4b1e9d59fa7529d4ed07
SHA256

45c0d4c42e3d98c94d5ae01270b7b0adfe3de2454520fa7b423f0fc9e2f49603
SHA512

6b335e536919c03b69d60aa645642e253cc12aee2ec9396585114870370f25b3ba5994742b6676c770528a718c3af1ceee086bac93d554b6d043dbd6639301a8
SSDEEP

24576:S9LaVUH999wbJG2Bzr7G9Fvqp8vYtY3aoT55ybAt:+BH9w1Havq6vYS34bA

Score

10^/10

blustealer collection stealer

Malware Config

Extracted

Family

blustealer

C2

https://api.telegram.org/bot5797428905:AAGaRRXGZN1d9GGFd3sE5x4uSpCGF0PU4m4/sendMessage?chat_id=1251788325

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-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\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 828 set thread context of 4320	828	45c0d4c42e3d98c94d5ae01270b7b0adfe3de2454520fa7b423f0fc9e2f49603.exe	90
PID 4320 set thread context of 3664	4320	45c0d4c42e3d98c94d5ae01270b7b0adfe3de2454520fa7b423f0fc9e2f49603.exe	91

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
828	45c0d4c42e3d98c94d5ae01270b7b0adfe3de2454520fa7b423f0fc9e2f49603.exe
828	45c0d4c42e3d98c94d5ae01270b7b0adfe3de2454520fa7b423f0fc9e2f49603.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	828	45c0d4c42e3d98c94d5ae01270b7b0adfe3de2454520fa7b423f0fc9e2f49603.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4320	45c0d4c42e3d98c94d5ae01270b7b0adfe3de2454520fa7b423f0fc9e2f49603.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 828 wrote to memory of 4320	828	45c0d4c42e3d98c94d5ae01270b7b0adfe3de2454520fa7b423f0fc9e2f49603.exe	90
PID 828 wrote to memory of 4320	828	45c0d4c42e3d98c94d5ae01270b7b0adfe3de2454520fa7b423f0fc9e2f49603.exe	90
PID 828 wrote to memory of 4320	828	45c0d4c42e3d98c94d5ae01270b7b0adfe3de2454520fa7b423f0fc9e2f49603.exe	90
PID 828 wrote to memory of 4320	828	45c0d4c42e3d98c94d5ae01270b7b0adfe3de2454520fa7b423f0fc9e2f49603.exe	90
PID 828 wrote to memory of 4320	828	45c0d4c42e3d98c94d5ae01270b7b0adfe3de2454520fa7b423f0fc9e2f49603.exe	90
PID 828 wrote to memory of 4320	828	45c0d4c42e3d98c94d5ae01270b7b0adfe3de2454520fa7b423f0fc9e2f49603.exe	90
PID 828 wrote to memory of 4320	828	45c0d4c42e3d98c94d5ae01270b7b0adfe3de2454520fa7b423f0fc9e2f49603.exe	90
PID 828 wrote to memory of 4320	828	45c0d4c42e3d98c94d5ae01270b7b0adfe3de2454520fa7b423f0fc9e2f49603.exe	90
PID 4320 wrote to memory of 3664	4320	45c0d4c42e3d98c94d5ae01270b7b0adfe3de2454520fa7b423f0fc9e2f49603.exe	91
PID 4320 wrote to memory of 3664	4320	45c0d4c42e3d98c94d5ae01270b7b0adfe3de2454520fa7b423f0fc9e2f49603.exe	91
PID 4320 wrote to memory of 3664	4320	45c0d4c42e3d98c94d5ae01270b7b0adfe3de2454520fa7b423f0fc9e2f49603.exe	91
PID 4320 wrote to memory of 3664	4320	45c0d4c42e3d98c94d5ae01270b7b0adfe3de2454520fa7b423f0fc9e2f49603.exe	91
PID 4320 wrote to memory of 3664	4320	45c0d4c42e3d98c94d5ae01270b7b0adfe3de2454520fa7b423f0fc9e2f49603.exe	91

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\45c0d4c42e3d98c94d5ae01270b7b0adfe3de2454520fa7b423f0fc9e2f49603.exe
"C:\Users\Admin\AppData\Local\Temp\45c0d4c42e3d98c94d5ae01270b7b0adfe3de2454520fa7b423f0fc9e2f49603.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:828
- C:\Users\Admin\AppData\Local\Temp\45c0d4c42e3d98c94d5ae01270b7b0adfe3de2454520fa7b423f0fc9e2f49603.exe
  "C:\Users\Admin\AppData\Local\Temp\45c0d4c42e3d98c94d5ae01270b7b0adfe3de2454520fa7b423f0fc9e2f49603.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4320
- - 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:3664

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

Loading Replay Monitor...

Downloads

memory/828-139-0x0000000005B20000-0x0000000005B30000-memory.dmp

Filesize
64KB

Download
memory/828-134-0x0000000005EC0000-0x0000000006464000-memory.dmp

Filesize
5.6MB

Download
memory/828-135-0x0000000005910000-0x00000000059A2000-memory.dmp

Filesize
584KB

Download
memory/828-136-0x00000000058A0000-0x00000000058AA000-memory.dmp

Filesize
40KB

Download
memory/828-137-0x0000000005BD0000-0x0000000005C6C000-memory.dmp

Filesize
624KB

Download
memory/828-138-0x0000000005B20000-0x0000000005B30000-memory.dmp

Filesize
64KB

Download
memory/828-133-0x0000000000DE0000-0x0000000000EE6000-memory.dmp

Filesize
1.0MB

Download
memory/3664-147-0x00000000001D0000-0x0000000000236000-memory.dmp

Filesize
408KB

Download
memory/3664-148-0x0000000004AA0000-0x0000000004AB0000-memory.dmp

Filesize
64KB

Download
memory/4320-140-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/4320-143-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/4320-146-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/4320-150-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download

Analysis

Sharing