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-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4644 set thread context of 4784	4644	45c0d4c42e3d98c94d5ae01270b7b0adfe3de2454520fa7b423f0fc9e2f49603.exe	91
PID 4784 set thread context of 4348	4784	45c0d4c42e3d98c94d5ae01270b7b0adfe3de2454520fa7b423f0fc9e2f49603.exe	92

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	45	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4644	45c0d4c42e3d98c94d5ae01270b7b0adfe3de2454520fa7b423f0fc9e2f49603.exe
4644	45c0d4c42e3d98c94d5ae01270b7b0adfe3de2454520fa7b423f0fc9e2f49603.exe
4644	45c0d4c42e3d98c94d5ae01270b7b0adfe3de2454520fa7b423f0fc9e2f49603.exe
4644	45c0d4c42e3d98c94d5ae01270b7b0adfe3de2454520fa7b423f0fc9e2f49603.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4644	45c0d4c42e3d98c94d5ae01270b7b0adfe3de2454520fa7b423f0fc9e2f49603.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4784	45c0d4c42e3d98c94d5ae01270b7b0adfe3de2454520fa7b423f0fc9e2f49603.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 4644 wrote to memory of 2676	4644	45c0d4c42e3d98c94d5ae01270b7b0adfe3de2454520fa7b423f0fc9e2f49603.exe	90
PID 4644 wrote to memory of 2676	4644	45c0d4c42e3d98c94d5ae01270b7b0adfe3de2454520fa7b423f0fc9e2f49603.exe	90
PID 4644 wrote to memory of 2676	4644	45c0d4c42e3d98c94d5ae01270b7b0adfe3de2454520fa7b423f0fc9e2f49603.exe	90
PID 4644 wrote to memory of 4784	4644	45c0d4c42e3d98c94d5ae01270b7b0adfe3de2454520fa7b423f0fc9e2f49603.exe	91
PID 4644 wrote to memory of 4784	4644	45c0d4c42e3d98c94d5ae01270b7b0adfe3de2454520fa7b423f0fc9e2f49603.exe	91
PID 4644 wrote to memory of 4784	4644	45c0d4c42e3d98c94d5ae01270b7b0adfe3de2454520fa7b423f0fc9e2f49603.exe	91
PID 4644 wrote to memory of 4784	4644	45c0d4c42e3d98c94d5ae01270b7b0adfe3de2454520fa7b423f0fc9e2f49603.exe	91
PID 4644 wrote to memory of 4784	4644	45c0d4c42e3d98c94d5ae01270b7b0adfe3de2454520fa7b423f0fc9e2f49603.exe	91
PID 4644 wrote to memory of 4784	4644	45c0d4c42e3d98c94d5ae01270b7b0adfe3de2454520fa7b423f0fc9e2f49603.exe	91
PID 4644 wrote to memory of 4784	4644	45c0d4c42e3d98c94d5ae01270b7b0adfe3de2454520fa7b423f0fc9e2f49603.exe	91
PID 4644 wrote to memory of 4784	4644	45c0d4c42e3d98c94d5ae01270b7b0adfe3de2454520fa7b423f0fc9e2f49603.exe	91
PID 4784 wrote to memory of 4348	4784	45c0d4c42e3d98c94d5ae01270b7b0adfe3de2454520fa7b423f0fc9e2f49603.exe	92
PID 4784 wrote to memory of 4348	4784	45c0d4c42e3d98c94d5ae01270b7b0adfe3de2454520fa7b423f0fc9e2f49603.exe	92
PID 4784 wrote to memory of 4348	4784	45c0d4c42e3d98c94d5ae01270b7b0adfe3de2454520fa7b423f0fc9e2f49603.exe	92
PID 4784 wrote to memory of 4348	4784	45c0d4c42e3d98c94d5ae01270b7b0adfe3de2454520fa7b423f0fc9e2f49603.exe	92
PID 4784 wrote to memory of 4348	4784	45c0d4c42e3d98c94d5ae01270b7b0adfe3de2454520fa7b423f0fc9e2f49603.exe	92

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\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:4644
- C:\Users\Admin\AppData\Local\Temp\45c0d4c42e3d98c94d5ae01270b7b0adfe3de2454520fa7b423f0fc9e2f49603.exe
  "C:\Users\Admin\AppData\Local\Temp\45c0d4c42e3d98c94d5ae01270b7b0adfe3de2454520fa7b423f0fc9e2f49603.exe"
  2⤵
  PID:2676
- 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:4784
- - 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:4348

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/4348-147-0x00000000001E0000-0x0000000000246000-memory.dmp

Filesize
408KB

Download
memory/4644-133-0x00000000003A0000-0x00000000004A6000-memory.dmp

Filesize
1.0MB

Download
memory/4644-134-0x00000000054B0000-0x0000000005A54000-memory.dmp

Filesize
5.6MB

Download
memory/4644-135-0x0000000004E50000-0x0000000004EE2000-memory.dmp

Filesize
584KB

Download
memory/4644-136-0x0000000004F10000-0x0000000004F1A000-memory.dmp

Filesize
40KB

Download
memory/4644-137-0x0000000005160000-0x00000000051FC000-memory.dmp

Filesize
624KB

Download
memory/4644-138-0x0000000004F70000-0x0000000004F80000-memory.dmp

Filesize
64KB

Download
memory/4644-139-0x0000000004F70000-0x0000000004F80000-memory.dmp

Filesize
64KB

Download
memory/4784-140-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/4784-143-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/4784-146-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download

Analysis

Sharing