blustealer | 13537e7d58eb6312b80c2abd796be6569ec2d99a41c20913629db6c1d5c12e0b

General

Target

13537e7d58eb6312b80c2abd796be6569ec2d99a41c20913629db6c1d5c12e0b.exe
Size

1.2MB
MD5

9b9068806d229820ef4977c37b9ece31
SHA1

d482d3e05dadf33a8cfc41ed3d33b700c9c5afe3
SHA256

13537e7d58eb6312b80c2abd796be6569ec2d99a41c20913629db6c1d5c12e0b
SHA512

c94c874d9f7cae44be88e3b4ea2121cd8475d039f886b93b963c231d14b2012b52943b3f4aa229773ff8b747111ad0943f3846bfe05b47a2d551bc3cfc12490e
SSDEEP

24576:h11jcQRG1e/zhH2b7Kc41/r8bAVx8+c8j7P36vg7dR:h1OQSgzhRc41/gqBc8j7eg7d

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-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\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 1308 set thread context of 468	1308	13537e7d58eb6312b80c2abd796be6569ec2d99a41c20913629db6c1d5c12e0b.exe	28
PID 468 set thread context of 1856	468	13537e7d58eb6312b80c2abd796be6569ec2d99a41c20913629db6c1d5c12e0b.exe	29

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1308	13537e7d58eb6312b80c2abd796be6569ec2d99a41c20913629db6c1d5c12e0b.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1308	13537e7d58eb6312b80c2abd796be6569ec2d99a41c20913629db6c1d5c12e0b.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
468	13537e7d58eb6312b80c2abd796be6569ec2d99a41c20913629db6c1d5c12e0b.exe

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 1308 wrote to memory of 1380	1308	13537e7d58eb6312b80c2abd796be6569ec2d99a41c20913629db6c1d5c12e0b.exe	27
PID 1308 wrote to memory of 1380	1308	13537e7d58eb6312b80c2abd796be6569ec2d99a41c20913629db6c1d5c12e0b.exe	27
PID 1308 wrote to memory of 1380	1308	13537e7d58eb6312b80c2abd796be6569ec2d99a41c20913629db6c1d5c12e0b.exe	27
PID 1308 wrote to memory of 1380	1308	13537e7d58eb6312b80c2abd796be6569ec2d99a41c20913629db6c1d5c12e0b.exe	27
PID 1308 wrote to memory of 468	1308	13537e7d58eb6312b80c2abd796be6569ec2d99a41c20913629db6c1d5c12e0b.exe	28
PID 1308 wrote to memory of 468	1308	13537e7d58eb6312b80c2abd796be6569ec2d99a41c20913629db6c1d5c12e0b.exe	28
PID 1308 wrote to memory of 468	1308	13537e7d58eb6312b80c2abd796be6569ec2d99a41c20913629db6c1d5c12e0b.exe	28
PID 1308 wrote to memory of 468	1308	13537e7d58eb6312b80c2abd796be6569ec2d99a41c20913629db6c1d5c12e0b.exe	28
PID 1308 wrote to memory of 468	1308	13537e7d58eb6312b80c2abd796be6569ec2d99a41c20913629db6c1d5c12e0b.exe	28
PID 1308 wrote to memory of 468	1308	13537e7d58eb6312b80c2abd796be6569ec2d99a41c20913629db6c1d5c12e0b.exe	28
PID 1308 wrote to memory of 468	1308	13537e7d58eb6312b80c2abd796be6569ec2d99a41c20913629db6c1d5c12e0b.exe	28
PID 1308 wrote to memory of 468	1308	13537e7d58eb6312b80c2abd796be6569ec2d99a41c20913629db6c1d5c12e0b.exe	28
PID 1308 wrote to memory of 468	1308	13537e7d58eb6312b80c2abd796be6569ec2d99a41c20913629db6c1d5c12e0b.exe	28
PID 468 wrote to memory of 1856	468	13537e7d58eb6312b80c2abd796be6569ec2d99a41c20913629db6c1d5c12e0b.exe	29
PID 468 wrote to memory of 1856	468	13537e7d58eb6312b80c2abd796be6569ec2d99a41c20913629db6c1d5c12e0b.exe	29
PID 468 wrote to memory of 1856	468	13537e7d58eb6312b80c2abd796be6569ec2d99a41c20913629db6c1d5c12e0b.exe	29
PID 468 wrote to memory of 1856	468	13537e7d58eb6312b80c2abd796be6569ec2d99a41c20913629db6c1d5c12e0b.exe	29
PID 468 wrote to memory of 1856	468	13537e7d58eb6312b80c2abd796be6569ec2d99a41c20913629db6c1d5c12e0b.exe	29
PID 468 wrote to memory of 1856	468	13537e7d58eb6312b80c2abd796be6569ec2d99a41c20913629db6c1d5c12e0b.exe	29
PID 468 wrote to memory of 1856	468	13537e7d58eb6312b80c2abd796be6569ec2d99a41c20913629db6c1d5c12e0b.exe	29
PID 468 wrote to memory of 1856	468	13537e7d58eb6312b80c2abd796be6569ec2d99a41c20913629db6c1d5c12e0b.exe	29
PID 468 wrote to memory of 1856	468	13537e7d58eb6312b80c2abd796be6569ec2d99a41c20913629db6c1d5c12e0b.exe	29

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\13537e7d58eb6312b80c2abd796be6569ec2d99a41c20913629db6c1d5c12e0b.exe
"C:\Users\Admin\AppData\Local\Temp\13537e7d58eb6312b80c2abd796be6569ec2d99a41c20913629db6c1d5c12e0b.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1308
- C:\Users\Admin\AppData\Local\Temp\13537e7d58eb6312b80c2abd796be6569ec2d99a41c20913629db6c1d5c12e0b.exe
  "C:\Users\Admin\AppData\Local\Temp\13537e7d58eb6312b80c2abd796be6569ec2d99a41c20913629db6c1d5c12e0b.exe"
  2⤵
  PID:1380
- C:\Users\Admin\AppData\Local\Temp\13537e7d58eb6312b80c2abd796be6569ec2d99a41c20913629db6c1d5c12e0b.exe
  "C:\Users\Admin\AppData\Local\Temp\13537e7d58eb6312b80c2abd796be6569ec2d99a41c20913629db6c1d5c12e0b.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:468
- - 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:1856

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/468-63-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/468-83-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/468-72-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/468-68-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/468-65-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/468-60-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/468-61-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/1308-59-0x0000000000960000-0x00000000009D4000-memory.dmp

Filesize
464KB

Download
memory/1308-54-0x0000000000180000-0x00000000002C0000-memory.dmp

Filesize
1.2MB

Download
memory/1308-58-0x0000000005D90000-0x0000000005E5A000-memory.dmp

Filesize
808KB

Download
memory/1308-57-0x00000000005E0000-0x00000000005EC000-memory.dmp

Filesize
48KB

Download
memory/1308-56-0x00000000004A0000-0x00000000004B8000-memory.dmp

Filesize
96KB

Download
memory/1308-55-0x0000000074DA1000-0x0000000074DA3000-memory.dmp

Filesize
8KB

Download
memory/1856-73-0x0000000000090000-0x00000000000F6000-memory.dmp

Filesize
408KB

Download
memory/1856-75-0x0000000000090000-0x00000000000F6000-memory.dmp

Filesize
408KB

Download
memory/1856-78-0x0000000000090000-0x00000000000F6000-memory.dmp

Filesize
408KB

Download
memory/1856-80-0x0000000000090000-0x00000000000F6000-memory.dmp

Filesize
408KB

Download
memory/1856-82-0x0000000000B80000-0x0000000000C3C000-memory.dmp

Filesize
752KB

Download

Analysis

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