blustealer | 7d2679d585d5fd6b476830fea23e3d0ddc831476e40464cee74743a2c853b81e

Analysis

max time kernel
150s
max time network
144s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
17-11-2022 16:53

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General

Target

Order Request.exe
Size

1.0MB
MD5

3c41bd7a89f4aaa559fd8d54455d8f9a
SHA1

c33773d28c2766f471b33fea9aed3fe8bcf53faf
SHA256

7d2679d585d5fd6b476830fea23e3d0ddc831476e40464cee74743a2c853b81e
SHA512

9e7f68cd03fa5a1e712f1a85a93ff6d7874bc158c80c4dc2604a8dce317c774830cba7972b1ce88503286f9e3157a31896bc06cdc9ba8108fcd2b6899863d86e
SSDEEP

24576:QiqeK7vCseCxe8+VcBm+6PpHrDkUZbv4KTBnG30YCoFjZnbCkI:QitrAWcBm+Ep8U5jBn+9FjZnbCkI

Score

10^/10

blustealer collection stealer

Malware Config

Extracted

Family

blustealer

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-1-5-21-4060001867-1434967833-2212371794-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-4060001867-1434967833-2212371794-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-4060001867-1434967833-2212371794-1000\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 4144 set thread context of 4688	4144	Order Request.exe	86
PID 4688 set thread context of 220	4688	Order Request.exe	87

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

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4688	Order Request.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 4144 wrote to memory of 4688	4144	Order Request.exe	86
PID 4144 wrote to memory of 4688	4144	Order Request.exe	86
PID 4144 wrote to memory of 4688	4144	Order Request.exe	86
PID 4144 wrote to memory of 4688	4144	Order Request.exe	86
PID 4144 wrote to memory of 4688	4144	Order Request.exe	86
PID 4144 wrote to memory of 4688	4144	Order Request.exe	86
PID 4144 wrote to memory of 4688	4144	Order Request.exe	86
PID 4144 wrote to memory of 4688	4144	Order Request.exe	86
PID 4688 wrote to memory of 220	4688	Order Request.exe	87
PID 4688 wrote to memory of 220	4688	Order Request.exe	87
PID 4688 wrote to memory of 220	4688	Order Request.exe	87
PID 4688 wrote to memory of 220	4688	Order Request.exe	87
PID 4688 wrote to memory of 220	4688	Order Request.exe	87

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4060001867-1434967833-2212371794-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4060001867-1434967833-2212371794-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\Order Request.exe
"C:\Users\Admin\AppData\Local\Temp\Order Request.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4144
- C:\Users\Admin\AppData\Local\Temp\Order Request.exe
  "C:\Users\Admin\AppData\Local\Temp\Order Request.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4688
- - 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:220

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/220-145-0x0000000000D60000-0x0000000000DC6000-memory.dmp

Filesize
408KB

Download
memory/4144-132-0x0000000000E20000-0x0000000000F32000-memory.dmp

Filesize
1.1MB

Download
memory/4144-133-0x0000000005FB0000-0x0000000006554000-memory.dmp

Filesize
5.6MB

Download
memory/4144-134-0x0000000005900000-0x0000000005992000-memory.dmp

Filesize
584KB

Download
memory/4144-135-0x00000000058C0000-0x00000000058CA000-memory.dmp

Filesize
40KB

Download
memory/4144-136-0x000000000A4A0000-0x000000000A53C000-memory.dmp

Filesize
624KB

Download
memory/4688-138-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/4688-140-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/4688-143-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/4688-146-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download