blustealer | ad282ebd8f2c2125130fde6a3a6d26d336ffd90501af6ef44ee5dfc402bf866a

General

Target

order 64.exe
Size

1.3MB
MD5

9a1ce8938bf2cc7231fe194847c0463d
SHA1

9b60e23cfe957e8de5759cfcef5d001efdce182a
SHA256

ad282ebd8f2c2125130fde6a3a6d26d336ffd90501af6ef44ee5dfc402bf866a
SHA512

0d79e749df5bee373c6eda59925e5792a6877068f53601c0a78e0d0da7083861ebb3a871c97f09cfbf9f069a757f2e21d59fad9c49848e70c61de4575ae933a8
SSDEEP

24576:hk12tA4pnkFR5i++22jl0qC/X8R38/Bl1j7GB/JmpEtg:61uqR5ibjl0VsR38Zl1j7GPmU

Score

10^/10

blustealer collection stealer

Malware Config

Extracted

Family

blustealer

C2

https://api.telegram.org/bot5450700540:AAEJyEEV8BKgYUKmnCPZxp19kD9GVSRup5M/sendMessage?chat_id=5422342474

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-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\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 1616 set thread context of 8	1616	order 64.exe	90
PID 8 set thread context of 5024	8	order 64.exe	91

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

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

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1616	order 64.exe
1616	order 64.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1616	order 64.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
8	order 64.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 1616 wrote to memory of 2276	1616	order 64.exe	89
PID 1616 wrote to memory of 2276	1616	order 64.exe	89
PID 1616 wrote to memory of 2276	1616	order 64.exe	89
PID 1616 wrote to memory of 8	1616	order 64.exe	90
PID 1616 wrote to memory of 8	1616	order 64.exe	90
PID 1616 wrote to memory of 8	1616	order 64.exe	90
PID 1616 wrote to memory of 8	1616	order 64.exe	90
PID 1616 wrote to memory of 8	1616	order 64.exe	90
PID 1616 wrote to memory of 8	1616	order 64.exe	90
PID 1616 wrote to memory of 8	1616	order 64.exe	90
PID 1616 wrote to memory of 8	1616	order 64.exe	90
PID 8 wrote to memory of 5024	8	order 64.exe	91
PID 8 wrote to memory of 5024	8	order 64.exe	91
PID 8 wrote to memory of 5024	8	order 64.exe	91
PID 8 wrote to memory of 5024	8	order 64.exe	91
PID 8 wrote to memory of 5024	8	order 64.exe	91

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\order 64.exe
"C:\Users\Admin\AppData\Local\Temp\order 64.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1616
- C:\Users\Admin\AppData\Local\Temp\order 64.exe
  "C:\Users\Admin\AppData\Local\Temp\order 64.exe"
  2⤵
  PID:2276
- C:\Users\Admin\AppData\Local\Temp\order 64.exe
  "C:\Users\Admin\AppData\Local\Temp\order 64.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:8
- - 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:5024

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/8-148-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/8-145-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/8-142-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/8-140-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/1616-135-0x0000000007D50000-0x0000000007D5A000-memory.dmp

Filesize
40KB

Download
memory/1616-137-0x0000000005F00000-0x0000000005F66000-memory.dmp

Filesize
408KB

Download
memory/1616-136-0x0000000005D60000-0x0000000005DFC000-memory.dmp

Filesize
624KB

Download
memory/1616-132-0x0000000000C00000-0x0000000000D4E000-memory.dmp

Filesize
1.3MB

Download
memory/1616-134-0x0000000007BC0000-0x0000000007C52000-memory.dmp

Filesize
584KB

Download
memory/1616-133-0x0000000008170000-0x0000000008714000-memory.dmp

Filesize
5.6MB

Download
memory/5024-147-0x0000000000D50000-0x0000000000DB6000-memory.dmp

Filesize
408KB

Download

Analysis

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