blustealer | df7e9523bb289e17bb9836b44370655e6bb42ad2214e622cd737dcd0e4214fa9

General

Target

Request For Quotation - ANOPC project2022.exe
Size

1015KB
MD5

08a40049879584cdeaa55fea081c0fd1
SHA1

5a704eb5c43e7156f7f5b5b010fcb4137b1cc180
SHA256

79814d086bdd991047d33be2ba327595390dad0cc3a1276fd730ef5b5a40aac3
SHA512

f11d9f0acde7732dd10c843e7043db2b14286ca07c2ee42007c804474172194270bf9cdcd04d54f1c844c81f53e691cb1e8179efc4671cd10944a7f2d01464d6

Score

10^/10

blustealer collection stealer

Malware Config

Extracted

Family

blustealer

C2

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-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\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 4236 set thread context of 2100	4236	Request For Quotation - ANOPC project2022.exe	86
PID 2100 set thread context of 3012	2100	Request For Quotation - ANOPC project2022.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	25	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4236	Request For Quotation - ANOPC project2022.exe
4236	Request For Quotation - ANOPC project2022.exe
4236	Request For Quotation - ANOPC project2022.exe
4236	Request For Quotation - ANOPC project2022.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4236	Request For Quotation - ANOPC project2022.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2100	Request For Quotation - ANOPC project2022.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 4236 wrote to memory of 2560	4236	Request For Quotation - ANOPC project2022.exe	84
PID 4236 wrote to memory of 2560	4236	Request For Quotation - ANOPC project2022.exe	84
PID 4236 wrote to memory of 2560	4236	Request For Quotation - ANOPC project2022.exe	84
PID 4236 wrote to memory of 4260	4236	Request For Quotation - ANOPC project2022.exe	85
PID 4236 wrote to memory of 4260	4236	Request For Quotation - ANOPC project2022.exe	85
PID 4236 wrote to memory of 4260	4236	Request For Quotation - ANOPC project2022.exe	85
PID 4236 wrote to memory of 2100	4236	Request For Quotation - ANOPC project2022.exe	86
PID 4236 wrote to memory of 2100	4236	Request For Quotation - ANOPC project2022.exe	86
PID 4236 wrote to memory of 2100	4236	Request For Quotation - ANOPC project2022.exe	86
PID 4236 wrote to memory of 2100	4236	Request For Quotation - ANOPC project2022.exe	86
PID 4236 wrote to memory of 2100	4236	Request For Quotation - ANOPC project2022.exe	86
PID 4236 wrote to memory of 2100	4236	Request For Quotation - ANOPC project2022.exe	86
PID 4236 wrote to memory of 2100	4236	Request For Quotation - ANOPC project2022.exe	86
PID 4236 wrote to memory of 2100	4236	Request For Quotation - ANOPC project2022.exe	86
PID 2100 wrote to memory of 3012	2100	Request For Quotation - ANOPC project2022.exe	87
PID 2100 wrote to memory of 3012	2100	Request For Quotation - ANOPC project2022.exe	87
PID 2100 wrote to memory of 3012	2100	Request For Quotation - ANOPC project2022.exe	87
PID 2100 wrote to memory of 3012	2100	Request For Quotation - ANOPC project2022.exe	87
PID 2100 wrote to memory of 3012	2100	Request For Quotation - ANOPC project2022.exe	87

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\Request For Quotation - ANOPC project2022.exe
"C:\Users\Admin\AppData\Local\Temp\Request For Quotation - ANOPC project2022.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4236
- C:\Users\Admin\AppData\Local\Temp\Request For Quotation - ANOPC project2022.exe
  "C:\Users\Admin\AppData\Local\Temp\Request For Quotation - ANOPC project2022.exe"
  2⤵
  PID:2560
- C:\Users\Admin\AppData\Local\Temp\Request For Quotation - ANOPC project2022.exe
  "C:\Users\Admin\AppData\Local\Temp\Request For Quotation - ANOPC project2022.exe"
  2⤵
  PID:4260
- C:\Users\Admin\AppData\Local\Temp\Request For Quotation - ANOPC project2022.exe
  "C:\Users\Admin\AppData\Local\Temp\Request For Quotation - ANOPC project2022.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2100
- - 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:3012

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/2100-140-0x0000000000400000-0x000000000046D000-memory.dmp

Filesize
436KB

Download
memory/2100-148-0x0000000000400000-0x000000000046D000-memory.dmp

Filesize
436KB

Download
memory/2100-145-0x0000000000400000-0x000000000046D000-memory.dmp

Filesize
436KB

Download
memory/2100-142-0x0000000000400000-0x000000000046D000-memory.dmp

Filesize
436KB

Download
memory/3012-147-0x0000000000D00000-0x0000000000D66000-memory.dmp

Filesize
408KB

Download
memory/4236-135-0x0000000004C80000-0x0000000004C8A000-memory.dmp

Filesize
40KB

Download
memory/4236-136-0x000000000AC30000-0x000000000ACCC000-memory.dmp

Filesize
624KB

Download
memory/4236-132-0x0000000000050000-0x0000000000154000-memory.dmp

Filesize
1.0MB

Download
memory/4236-134-0x0000000004AE0000-0x0000000004B72000-memory.dmp

Filesize
584KB

Download
memory/4236-133-0x0000000004F90000-0x0000000005534000-memory.dmp

Filesize
5.6MB

Download

Analysis

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