blustealer | 8c575aa5e93a77f506411780e84f57617a784605557c36053bc3535306509f03

General

Target

quotation.exe
Size

661KB
MD5

3447635f58aa5581db95a3829b004f5b
SHA1

e9275447f8fd436b726a868025f49412b5cba811
SHA256

8c575aa5e93a77f506411780e84f57617a784605557c36053bc3535306509f03
SHA512

7c6570674889496a206ff8c52e954ae40d948ee4ac4d20fb42f47abc48ca3d469617b9a76eadd39c9c77a9136c69d3c9df1f213cb3dbbe1c79d337bf19dee8ba
SSDEEP

12288:jCfAg0DqCrZVRr7s2uUBdx5bwY8nmX5nadvQeQPR:jmzGqaZVBmUnxympnKo/PR

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-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\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 1736 set thread context of 1760	1736	quotation.exe	27
PID 1760 set thread context of 1980	1760	cvtres.exe	28

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1760	cvtres.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 1736 wrote to memory of 1760	1736	quotation.exe	27
PID 1736 wrote to memory of 1760	1736	quotation.exe	27
PID 1736 wrote to memory of 1760	1736	quotation.exe	27
PID 1736 wrote to memory of 1760	1736	quotation.exe	27
PID 1736 wrote to memory of 1760	1736	quotation.exe	27
PID 1736 wrote to memory of 1760	1736	quotation.exe	27
PID 1736 wrote to memory of 1760	1736	quotation.exe	27
PID 1736 wrote to memory of 1760	1736	quotation.exe	27
PID 1736 wrote to memory of 1760	1736	quotation.exe	27
PID 1760 wrote to memory of 1980	1760	cvtres.exe	28
PID 1760 wrote to memory of 1980	1760	cvtres.exe	28
PID 1760 wrote to memory of 1980	1760	cvtres.exe	28
PID 1760 wrote to memory of 1980	1760	cvtres.exe	28
PID 1760 wrote to memory of 1980	1760	cvtres.exe	28
PID 1760 wrote to memory of 1980	1760	cvtres.exe	28
PID 1760 wrote to memory of 1980	1760	cvtres.exe	28
PID 1760 wrote to memory of 1980	1760	cvtres.exe	28
PID 1760 wrote to memory of 1980	1760	cvtres.exe	28

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\quotation.exe
"C:\Users\Admin\AppData\Local\Temp\quotation.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1736
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1760
- - 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:1980

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1736-54-0x00000000003D0000-0x0000000000476000-memory.dmp

Filesize
664KB

Download
memory/1736-55-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download
memory/1736-56-0x0000000000370000-0x000000000037A000-memory.dmp

Filesize
40KB

Download
memory/1760-65-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/1760-69-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/1760-60-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/1760-62-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/1760-57-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/1760-68-0x0000000076171000-0x0000000076173000-memory.dmp

Filesize
8KB

Download
memory/1760-58-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/1760-80-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/1980-72-0x00000000000D0000-0x0000000000136000-memory.dmp

Filesize
408KB

Download
memory/1980-75-0x00000000000D0000-0x0000000000136000-memory.dmp

Filesize
408KB

Download
memory/1980-77-0x00000000000D0000-0x0000000000136000-memory.dmp

Filesize
408KB

Download
memory/1980-79-0x0000000004BA0000-0x0000000004C5C000-memory.dmp

Filesize
752KB

Download
memory/1980-70-0x00000000000D0000-0x0000000000136000-memory.dmp

Filesize
408KB

Download

Analysis

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