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-1-5-21-1914912747-3343861975-731272777-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000\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 916 set thread context of 588	916	45c0d4c42e3d98c94d5ae01270b7b0adfe3de2454520fa7b423f0fc9e2f49603.exe	27
PID 588 set thread context of 1396	588	45c0d4c42e3d98c94d5ae01270b7b0adfe3de2454520fa7b423f0fc9e2f49603.exe	28

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
916	45c0d4c42e3d98c94d5ae01270b7b0adfe3de2454520fa7b423f0fc9e2f49603.exe
916	45c0d4c42e3d98c94d5ae01270b7b0adfe3de2454520fa7b423f0fc9e2f49603.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	916	45c0d4c42e3d98c94d5ae01270b7b0adfe3de2454520fa7b423f0fc9e2f49603.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
588	45c0d4c42e3d98c94d5ae01270b7b0adfe3de2454520fa7b423f0fc9e2f49603.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 916 wrote to memory of 588	916	45c0d4c42e3d98c94d5ae01270b7b0adfe3de2454520fa7b423f0fc9e2f49603.exe	27
PID 916 wrote to memory of 588	916	45c0d4c42e3d98c94d5ae01270b7b0adfe3de2454520fa7b423f0fc9e2f49603.exe	27
PID 916 wrote to memory of 588	916	45c0d4c42e3d98c94d5ae01270b7b0adfe3de2454520fa7b423f0fc9e2f49603.exe	27
PID 916 wrote to memory of 588	916	45c0d4c42e3d98c94d5ae01270b7b0adfe3de2454520fa7b423f0fc9e2f49603.exe	27
PID 916 wrote to memory of 588	916	45c0d4c42e3d98c94d5ae01270b7b0adfe3de2454520fa7b423f0fc9e2f49603.exe	27
PID 916 wrote to memory of 588	916	45c0d4c42e3d98c94d5ae01270b7b0adfe3de2454520fa7b423f0fc9e2f49603.exe	27
PID 916 wrote to memory of 588	916	45c0d4c42e3d98c94d5ae01270b7b0adfe3de2454520fa7b423f0fc9e2f49603.exe	27
PID 916 wrote to memory of 588	916	45c0d4c42e3d98c94d5ae01270b7b0adfe3de2454520fa7b423f0fc9e2f49603.exe	27
PID 916 wrote to memory of 588	916	45c0d4c42e3d98c94d5ae01270b7b0adfe3de2454520fa7b423f0fc9e2f49603.exe	27
PID 588 wrote to memory of 1396	588	45c0d4c42e3d98c94d5ae01270b7b0adfe3de2454520fa7b423f0fc9e2f49603.exe	28
PID 588 wrote to memory of 1396	588	45c0d4c42e3d98c94d5ae01270b7b0adfe3de2454520fa7b423f0fc9e2f49603.exe	28
PID 588 wrote to memory of 1396	588	45c0d4c42e3d98c94d5ae01270b7b0adfe3de2454520fa7b423f0fc9e2f49603.exe	28
PID 588 wrote to memory of 1396	588	45c0d4c42e3d98c94d5ae01270b7b0adfe3de2454520fa7b423f0fc9e2f49603.exe	28
PID 588 wrote to memory of 1396	588	45c0d4c42e3d98c94d5ae01270b7b0adfe3de2454520fa7b423f0fc9e2f49603.exe	28
PID 588 wrote to memory of 1396	588	45c0d4c42e3d98c94d5ae01270b7b0adfe3de2454520fa7b423f0fc9e2f49603.exe	28
PID 588 wrote to memory of 1396	588	45c0d4c42e3d98c94d5ae01270b7b0adfe3de2454520fa7b423f0fc9e2f49603.exe	28
PID 588 wrote to memory of 1396	588	45c0d4c42e3d98c94d5ae01270b7b0adfe3de2454520fa7b423f0fc9e2f49603.exe	28
PID 588 wrote to memory of 1396	588	45c0d4c42e3d98c94d5ae01270b7b0adfe3de2454520fa7b423f0fc9e2f49603.exe	28

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000\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:916
- 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:588
- - 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:1396

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/588-62-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/588-81-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/588-71-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/588-68-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/588-66-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/588-65-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/588-63-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/588-61-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/916-59-0x0000000004F10000-0x0000000004FBC000-memory.dmp

Filesize
688KB

Download
memory/916-60-0x0000000005540000-0x00000000055B6000-memory.dmp

Filesize
472KB

Download
memory/916-54-0x0000000000E30000-0x0000000000F36000-memory.dmp

Filesize
1.0MB

Download
memory/916-58-0x00000000004D0000-0x00000000004DA000-memory.dmp

Filesize
40KB

Download
memory/916-57-0x0000000004DD0000-0x0000000004E10000-memory.dmp

Filesize
256KB

Download
memory/916-56-0x0000000000270000-0x0000000000284000-memory.dmp

Filesize
80KB

Download
memory/916-55-0x0000000004DD0000-0x0000000004E10000-memory.dmp

Filesize
256KB

Download
memory/1396-73-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/1396-74-0x0000000000190000-0x00000000001F6000-memory.dmp

Filesize
408KB

Download
memory/1396-76-0x0000000000190000-0x00000000001F6000-memory.dmp

Filesize
408KB

Download
memory/1396-78-0x0000000000190000-0x00000000001F6000-memory.dmp

Filesize
408KB

Download
memory/1396-79-0x0000000000F50000-0x000000000100C000-memory.dmp

Filesize
752KB

Download
memory/1396-80-0x0000000000780000-0x00000000007C0000-memory.dmp

Filesize
256KB

Download
memory/1396-72-0x0000000000190000-0x00000000001F6000-memory.dmp

Filesize
408KB

Download

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