blustealer | 117dd61549c79fdebe4421043a9d4809d65b9b92724f09813953e22cca7bb6be

Analysis

max time kernel
152s
max time network
133s
platform
windows10-2004_x64
resource
win10v2004-20220722-en
resource tags

arch:x64arch:x86image:win10v2004-20220722-enlocale:en-usos:windows10-2004-x64system
submitted
04-08-2022 17:04

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General

Target

new order.exe
Size

1.1MB
MD5

2d475dbdfd7a378689d984a04677e641
SHA1

1a673fb62bb6e29fb3d9ef0d40e480cbad541879
SHA256

579c3138028884421849a6d210996f27da317f22d228a98d9bd0704786090498
SHA512

cf9e9014fc5b462ef5d2326c452d922b3c3b3f1317eed74b4620345fe8eeef15779abdf239d87a8c5dcb2e124c3d4214a0be8a06d43be3108e348091a7706fc5

Score

10^/10

blustealer collection stealer

Malware Config

Extracted

Family

blustealer

https://api.telegram.org/bot5330579892:AAHDIOXrD-d-pMU_JI4pPczBI962-9fokRs/sendMessage?chat_id=1494890429

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-1-5-21-3463845317-933582289-45817732-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-3463845317-933582289-45817732-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-3463845317-933582289-45817732-1000\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 4964 set thread context of 1164	4964	new order.exe	92
PID 1164 set thread context of 3948	1164	new order.exe	94

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

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1164	new order.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 4964 wrote to memory of 1164	4964	new order.exe	92
PID 4964 wrote to memory of 1164	4964	new order.exe	92
PID 4964 wrote to memory of 1164	4964	new order.exe	92
PID 4964 wrote to memory of 1164	4964	new order.exe	92
PID 4964 wrote to memory of 1164	4964	new order.exe	92
PID 4964 wrote to memory of 1164	4964	new order.exe	92
PID 4964 wrote to memory of 1164	4964	new order.exe	92
PID 4964 wrote to memory of 1164	4964	new order.exe	92
PID 1164 wrote to memory of 3948	1164	new order.exe	94
PID 1164 wrote to memory of 3948	1164	new order.exe	94
PID 1164 wrote to memory of 3948	1164	new order.exe	94
PID 1164 wrote to memory of 3948	1164	new order.exe	94
PID 1164 wrote to memory of 3948	1164	new order.exe	94

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3463845317-933582289-45817732-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3463845317-933582289-45817732-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\new order.exe
"C:\Users\Admin\AppData\Local\Temp\new order.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4964
- C:\Users\Admin\AppData\Local\Temp\new order.exe
  "C:\Users\Admin\AppData\Local\Temp\new order.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1164
- - 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:3948

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1164-144-0x0000000000400000-0x000000000046D000-memory.dmp

Filesize
436KB

Download
memory/1164-139-0x0000000000400000-0x000000000046D000-memory.dmp

Filesize
436KB

Download
memory/1164-141-0x0000000000400000-0x000000000046D000-memory.dmp

Filesize
436KB

Download
memory/1164-145-0x0000000000400000-0x000000000046D000-memory.dmp

Filesize
436KB

Download
memory/3948-147-0x0000000000B30000-0x0000000000B96000-memory.dmp

Filesize
408KB

Download
memory/4964-133-0x0000000005E30000-0x00000000063D4000-memory.dmp

Filesize
5.6MB

Download
memory/4964-134-0x0000000005920000-0x00000000059B2000-memory.dmp

Filesize
584KB

Download
memory/4964-135-0x0000000005DB0000-0x0000000005DBA000-memory.dmp

Filesize
40KB

Download
memory/4964-136-0x000000000A470000-0x000000000A50C000-memory.dmp

Filesize
624KB

Download
memory/4964-137-0x000000000A580000-0x000000000A5E6000-memory.dmp

Filesize
408KB

Download
memory/4964-132-0x0000000000BE0000-0x0000000000CF8000-memory.dmp

Filesize
1.1MB

Download