blustealer | cd101d3d19d5e797d9a151c9c4dd1db497f8e4ec680a7fb99a69b6af36634445

Resubmissions

15/09/2022, 18:03

220915-wnac4aheaj 10

13/09/2022, 17:07

220913-vndvvagba2 10

12/09/2022, 11:46

220912-nxcktaghfq 10

Analysis

max time kernel
146s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
12/09/2022, 11:46

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

7.exe
Size

1.2MB
MD5

9525bd775591fc765660eeb64002741f
SHA1

0cb836092ba969107916c7445c790876a61912a6
SHA256

cd101d3d19d5e797d9a151c9c4dd1db497f8e4ec680a7fb99a69b6af36634445
SHA512

4ecea438e61f1b5decde0218ccf38146fadbda35531fe8b79ddd5cd47014d185cff8c6d94e6f4e1aaa7478d12c20b2c9d392ccbfa642be97c1b272003bb3df10
SSDEEP

24576:C5nVyP/M6tQ5Cr0qwvNIQFQdS6vK2NqM4:IVA/TtQclwvNICQpvK2NqF

Score

10^/10

blustealer collection stealer

Malware Config

Extracted

Family

blustealer

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-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1196 set thread context of 912	1196	7.exe	93
PID 912 set thread context of 5084	912	7.exe	99

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

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
912	7.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 1196 wrote to memory of 912	1196	7.exe	93
PID 1196 wrote to memory of 912	1196	7.exe	93
PID 1196 wrote to memory of 912	1196	7.exe	93
PID 1196 wrote to memory of 912	1196	7.exe	93
PID 1196 wrote to memory of 912	1196	7.exe	93
PID 1196 wrote to memory of 912	1196	7.exe	93
PID 1196 wrote to memory of 912	1196	7.exe	93
PID 1196 wrote to memory of 912	1196	7.exe	93
PID 912 wrote to memory of 5084	912	7.exe	99
PID 912 wrote to memory of 5084	912	7.exe	99
PID 912 wrote to memory of 5084	912	7.exe	99
PID 912 wrote to memory of 5084	912	7.exe	99
PID 912 wrote to memory of 5084	912	7.exe	99

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\7.exe
"C:\Users\Admin\AppData\Local\Temp\7.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1196
- C:\Users\Admin\AppData\Local\Temp\7.exe
  "C:\Users\Admin\AppData\Local\Temp\7.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:912
- - 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:5084

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

Loading Replay Monitor...

Downloads

memory/912-139-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/912-141-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/912-144-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/1196-132-0x0000000000C00000-0x0000000000D3A000-memory.dmp

Filesize
1.2MB

Download
memory/1196-133-0x0000000005C40000-0x00000000061E4000-memory.dmp

Filesize
5.6MB

Download
memory/1196-134-0x0000000005730000-0x00000000057C2000-memory.dmp

Filesize
584KB

Download
memory/1196-135-0x00000000056F0000-0x00000000056FA000-memory.dmp

Filesize
40KB

Download
memory/1196-136-0x0000000008000000-0x000000000809C000-memory.dmp

Filesize
624KB

Download
memory/1196-137-0x0000000008110000-0x0000000008176000-memory.dmp

Filesize
408KB

Download
memory/5084-146-0x0000000000940000-0x00000000009A6000-memory.dmp

Filesize
408KB

Download