blustealer | dba189ded0db555ce536385f81ad1490d1123534ec89b72acf4f8be65c001eda

General

Target

RFQ# 437179.exe
Size

945KB
MD5

b6aeee41b0198e03a004fb0d77d9019d
SHA1

6e0a24b8c8b909a7729d90c62af505ccc310f970
SHA256

dba189ded0db555ce536385f81ad1490d1123534ec89b72acf4f8be65c001eda
SHA512

9e30546d30dfb1d924acbfa3400be101281937c42ca6e8ef3d2c48a40aadefa36ff08a0ec570441419a502e04baa7ed3d561d257acebdfa947dfb8dd647f1ea2
SSDEEP

24576:PyqTC/fI4T3MirauGdpcoL2XoLKmlNMbn/KSDTKR7f:PXMvraSoLNLblNMDhq

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-1-5-21-3948302646-268491222-1934009652-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000\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 2004 set thread context of 1904	2004	RFQ# 437179.exe	28
PID 1904 set thread context of 1756	1904	RFQ# 437179.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
1904	RFQ# 437179.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 2004 wrote to memory of 1904	2004	RFQ# 437179.exe	28
PID 2004 wrote to memory of 1904	2004	RFQ# 437179.exe	28
PID 2004 wrote to memory of 1904	2004	RFQ# 437179.exe	28
PID 2004 wrote to memory of 1904	2004	RFQ# 437179.exe	28
PID 2004 wrote to memory of 1904	2004	RFQ# 437179.exe	28
PID 2004 wrote to memory of 1904	2004	RFQ# 437179.exe	28
PID 2004 wrote to memory of 1904	2004	RFQ# 437179.exe	28
PID 2004 wrote to memory of 1904	2004	RFQ# 437179.exe	28
PID 2004 wrote to memory of 1904	2004	RFQ# 437179.exe	28
PID 1904 wrote to memory of 1756	1904	RFQ# 437179.exe	29
PID 1904 wrote to memory of 1756	1904	RFQ# 437179.exe	29
PID 1904 wrote to memory of 1756	1904	RFQ# 437179.exe	29
PID 1904 wrote to memory of 1756	1904	RFQ# 437179.exe	29
PID 1904 wrote to memory of 1756	1904	RFQ# 437179.exe	29
PID 1904 wrote to memory of 1756	1904	RFQ# 437179.exe	29
PID 1904 wrote to memory of 1756	1904	RFQ# 437179.exe	29
PID 1904 wrote to memory of 1756	1904	RFQ# 437179.exe	29
PID 1904 wrote to memory of 1756	1904	RFQ# 437179.exe	29

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\RFQ# 437179.exe
"C:\Users\Admin\AppData\Local\Temp\RFQ# 437179.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2004
- C:\Users\Admin\AppData\Local\Temp\RFQ# 437179.exe
  "C:\Users\Admin\AppData\Local\Temp\RFQ# 437179.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1904
- - 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:1756

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/1756-73-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/1756-79-0x00000000048A0000-0x000000000495C000-memory.dmp

Filesize
752KB

Download
memory/1756-76-0x0000000000170000-0x00000000001D6000-memory.dmp

Filesize
408KB

Download
memory/1756-78-0x0000000000170000-0x00000000001D6000-memory.dmp

Filesize
408KB

Download
memory/1756-74-0x0000000000170000-0x00000000001D6000-memory.dmp

Filesize
408KB

Download
memory/1756-72-0x0000000000170000-0x00000000001D6000-memory.dmp

Filesize
408KB

Download
memory/1904-65-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1904-80-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/1904-62-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/1904-63-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/1904-61-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/1904-66-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/1904-68-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/1904-71-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/2004-54-0x00000000009E0000-0x0000000000AD2000-memory.dmp

Filesize
968KB

Download
memory/2004-59-0x00000000056A0000-0x000000000574C000-memory.dmp

Filesize
688KB

Download
memory/2004-58-0x0000000000560000-0x000000000056C000-memory.dmp

Filesize
48KB

Download
memory/2004-57-0x0000000004CD0000-0x0000000004D10000-memory.dmp

Filesize
256KB

Download
memory/2004-56-0x0000000000540000-0x0000000000554000-memory.dmp

Filesize
80KB

Download
memory/2004-55-0x0000000004CD0000-0x0000000004D10000-memory.dmp

Filesize
256KB

Download
memory/2004-60-0x0000000004C30000-0x0000000004CA6000-memory.dmp

Filesize
472KB

Download

Analysis

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