blustealer | b5145ccf5ded090001d3a5368ad32b5b4853f1b2153e55beae9ff0ba543e449e

General

Target

b5145ccf5ded090001d3a5368ad32b5b4853f1b2153e55beae9ff0ba543e449e.exe
Size

992KB
MD5

84bcb19b24fb3cf44188d8ea5e8a080f
SHA1

f6a1b91c039a3ce6cff9bf160725a4d2dae6df81
SHA256

b5145ccf5ded090001d3a5368ad32b5b4853f1b2153e55beae9ff0ba543e449e
SHA512

03658af693ef7d3754277e506e0aaf71402ab675ea4618adee8dcd34c50e1e49e5349dd6e92d6dd02f5abb72feb76d97aace506a6fc16f9ce01f1ad1f8902e32
SSDEEP

24576:8qPLaVUH999QYDtn9pvEni933gMciIX0GJ/llyoWD/H:fBH9QYDvpvwXMcpX0GJ/llQ

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 1984 set thread context of 564	1984	b5145ccf5ded090001d3a5368ad32b5b4853f1b2153e55beae9ff0ba543e449e.exe	27
PID 564 set thread context of 1724	564	b5145ccf5ded090001d3a5368ad32b5b4853f1b2153e55beae9ff0ba543e449e.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
1984	b5145ccf5ded090001d3a5368ad32b5b4853f1b2153e55beae9ff0ba543e449e.exe
1984	b5145ccf5ded090001d3a5368ad32b5b4853f1b2153e55beae9ff0ba543e449e.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1984	b5145ccf5ded090001d3a5368ad32b5b4853f1b2153e55beae9ff0ba543e449e.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
564	b5145ccf5ded090001d3a5368ad32b5b4853f1b2153e55beae9ff0ba543e449e.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 1984 wrote to memory of 564	1984	b5145ccf5ded090001d3a5368ad32b5b4853f1b2153e55beae9ff0ba543e449e.exe	27
PID 1984 wrote to memory of 564	1984	b5145ccf5ded090001d3a5368ad32b5b4853f1b2153e55beae9ff0ba543e449e.exe	27
PID 1984 wrote to memory of 564	1984	b5145ccf5ded090001d3a5368ad32b5b4853f1b2153e55beae9ff0ba543e449e.exe	27
PID 1984 wrote to memory of 564	1984	b5145ccf5ded090001d3a5368ad32b5b4853f1b2153e55beae9ff0ba543e449e.exe	27
PID 1984 wrote to memory of 564	1984	b5145ccf5ded090001d3a5368ad32b5b4853f1b2153e55beae9ff0ba543e449e.exe	27
PID 1984 wrote to memory of 564	1984	b5145ccf5ded090001d3a5368ad32b5b4853f1b2153e55beae9ff0ba543e449e.exe	27
PID 1984 wrote to memory of 564	1984	b5145ccf5ded090001d3a5368ad32b5b4853f1b2153e55beae9ff0ba543e449e.exe	27
PID 1984 wrote to memory of 564	1984	b5145ccf5ded090001d3a5368ad32b5b4853f1b2153e55beae9ff0ba543e449e.exe	27
PID 1984 wrote to memory of 564	1984	b5145ccf5ded090001d3a5368ad32b5b4853f1b2153e55beae9ff0ba543e449e.exe	27
PID 564 wrote to memory of 1724	564	b5145ccf5ded090001d3a5368ad32b5b4853f1b2153e55beae9ff0ba543e449e.exe	28
PID 564 wrote to memory of 1724	564	b5145ccf5ded090001d3a5368ad32b5b4853f1b2153e55beae9ff0ba543e449e.exe	28
PID 564 wrote to memory of 1724	564	b5145ccf5ded090001d3a5368ad32b5b4853f1b2153e55beae9ff0ba543e449e.exe	28
PID 564 wrote to memory of 1724	564	b5145ccf5ded090001d3a5368ad32b5b4853f1b2153e55beae9ff0ba543e449e.exe	28
PID 564 wrote to memory of 1724	564	b5145ccf5ded090001d3a5368ad32b5b4853f1b2153e55beae9ff0ba543e449e.exe	28
PID 564 wrote to memory of 1724	564	b5145ccf5ded090001d3a5368ad32b5b4853f1b2153e55beae9ff0ba543e449e.exe	28
PID 564 wrote to memory of 1724	564	b5145ccf5ded090001d3a5368ad32b5b4853f1b2153e55beae9ff0ba543e449e.exe	28
PID 564 wrote to memory of 1724	564	b5145ccf5ded090001d3a5368ad32b5b4853f1b2153e55beae9ff0ba543e449e.exe	28
PID 564 wrote to memory of 1724	564	b5145ccf5ded090001d3a5368ad32b5b4853f1b2153e55beae9ff0ba543e449e.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\b5145ccf5ded090001d3a5368ad32b5b4853f1b2153e55beae9ff0ba543e449e.exe
"C:\Users\Admin\AppData\Local\Temp\b5145ccf5ded090001d3a5368ad32b5b4853f1b2153e55beae9ff0ba543e449e.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1984
- C:\Users\Admin\AppData\Local\Temp\b5145ccf5ded090001d3a5368ad32b5b4853f1b2153e55beae9ff0ba543e449e.exe
  "C:\Users\Admin\AppData\Local\Temp\b5145ccf5ded090001d3a5368ad32b5b4853f1b2153e55beae9ff0ba543e449e.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:564
- - 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:1724

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/564-62-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/564-80-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/564-70-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/564-67-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/564-64-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/564-65-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/564-60-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/564-61-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/1724-73-0x00000000000D0000-0x0000000000136000-memory.dmp

Filesize
408KB

Download
memory/1724-71-0x00000000000D0000-0x0000000000136000-memory.dmp

Filesize
408KB

Download
memory/1724-72-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/1724-75-0x00000000000D0000-0x0000000000136000-memory.dmp

Filesize
408KB

Download
memory/1724-77-0x00000000000D0000-0x0000000000136000-memory.dmp

Filesize
408KB

Download
memory/1724-78-0x0000000004CF0000-0x0000000004DAC000-memory.dmp

Filesize
752KB

Download
memory/1724-79-0x0000000002400000-0x0000000002440000-memory.dmp

Filesize
256KB

Download
memory/1984-59-0x0000000005060000-0x00000000050D6000-memory.dmp

Filesize
472KB

Download
memory/1984-58-0x0000000005980000-0x0000000005A2C000-memory.dmp

Filesize
688KB

Download
memory/1984-57-0x00000000004D0000-0x00000000004DA000-memory.dmp

Filesize
40KB

Download
memory/1984-56-0x00000000004B0000-0x00000000004C4000-memory.dmp

Filesize
80KB

Download
memory/1984-54-0x0000000000E20000-0x0000000000F1A000-memory.dmp

Filesize
1000KB

Download
memory/1984-55-0x0000000004DD0000-0x0000000004E10000-memory.dmp

Filesize
256KB

Download

Analysis

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