blustealer | 30a680695af757592455d8768df9999f4b5abb540877e652b93373fb1a693e5b

General

Target

Invoice and packing list.exe
Size

927KB
MD5

be243e22ac3aedbbb1c9894a85e0e087
SHA1

76b0bd8ef47a8a569b205672f9700e668f6d0189
SHA256

30a680695af757592455d8768df9999f4b5abb540877e652b93373fb1a693e5b
SHA512

c6121e38d1ac124b2946c3b194cb77a2c417433cd052c5fbaedf03b76478b5eec319e927aa83f9ce64c01943bfd572296865a52901fb721866573723a5ec4160
SSDEEP

24576:uXMJqDbDyXjIonWR3NCGQZbOUAdwKvpqmK:uzLyTIoSsZnAdwK

Score

10^/10

blustealer collection spyware stealer

Malware Config

Extracted

Family

blustealer

C2

https://api.telegram.org/bot5982631795:AAFe1A7BEPv_6ExMz851LxdOAjr_9gqH8zY/sendMessage?chat_id=5968311109

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-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials in Files
T1081

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2320 set thread context of 4160	2320	Invoice and packing list.exe	85
PID 4160 set thread context of 4912	4160	Invoice and packing list.exe	88

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

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

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4160	Invoice and packing list.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 2320 wrote to memory of 4160	2320	Invoice and packing list.exe	85
PID 2320 wrote to memory of 4160	2320	Invoice and packing list.exe	85
PID 2320 wrote to memory of 4160	2320	Invoice and packing list.exe	85
PID 2320 wrote to memory of 4160	2320	Invoice and packing list.exe	85
PID 2320 wrote to memory of 4160	2320	Invoice and packing list.exe	85
PID 2320 wrote to memory of 4160	2320	Invoice and packing list.exe	85
PID 2320 wrote to memory of 4160	2320	Invoice and packing list.exe	85
PID 2320 wrote to memory of 4160	2320	Invoice and packing list.exe	85
PID 4160 wrote to memory of 4912	4160	Invoice and packing list.exe	88
PID 4160 wrote to memory of 4912	4160	Invoice and packing list.exe	88
PID 4160 wrote to memory of 4912	4160	Invoice and packing list.exe	88
PID 4160 wrote to memory of 4912	4160	Invoice and packing list.exe	88
PID 4160 wrote to memory of 4912	4160	Invoice and packing list.exe	88

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\Invoice and packing list.exe
"C:\Users\Admin\AppData\Local\Temp\Invoice and packing list.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2320
- C:\Users\Admin\AppData\Local\Temp\Invoice and packing list.exe
  "C:\Users\Admin\AppData\Local\Temp\Invoice and packing list.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4160
- - 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:4912

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

1

T1081

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2320-133-0x0000000000010000-0x00000000000FC000-memory.dmp

Filesize
944KB

Download
memory/2320-134-0x0000000004EC0000-0x0000000005464000-memory.dmp

Filesize
5.6MB

Download
memory/2320-135-0x00000000049B0000-0x0000000004A42000-memory.dmp

Filesize
584KB

Download
memory/2320-136-0x0000000004970000-0x0000000004980000-memory.dmp

Filesize
64KB

Download
memory/2320-137-0x0000000004990000-0x000000000499A000-memory.dmp

Filesize
40KB

Download
memory/2320-138-0x0000000004970000-0x0000000004980000-memory.dmp

Filesize
64KB

Download
memory/2320-139-0x0000000006810000-0x00000000068AC000-memory.dmp

Filesize
624KB

Download
memory/4160-140-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/4160-143-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/4160-146-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/4160-149-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/4912-147-0x0000000001100000-0x0000000001166000-memory.dmp

Filesize
408KB

Download

Analysis

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