blustealer | 481040d8ec2c9253e10b7d7bd1712ea29db40c98aae1b58ee21a6f5fcc64854d

Analysis

max time kernel
128s
max time network
123s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
18-01-2024 01:21

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General

Target

641be17bc535de14c143b803d9da4d1b.exe
Size

2.3MB
MD5

641be17bc535de14c143b803d9da4d1b
SHA1

42f20588bebcda54ee7482a01c4c12876d1d11a2
SHA256

481040d8ec2c9253e10b7d7bd1712ea29db40c98aae1b58ee21a6f5fcc64854d
SHA512

eea941e06e604db321faa5f4cc1c9d6c036b1eb915c517210434bb688a46517db792ff07ca215403a482550b317bd693779ee96f5b588ca02a5ab56d932674a1
SSDEEP

12288:Pr2WbxQJ6iVmp153F8bQRs2Wb4xRH3xImOj9a4ENpjPsh10LYoE5UcyZmexxlcUa:PrVbxi66I1F8bQDDW9/Esh10LYo/0

Score

10^/10

blustealer stealer

Malware Config

Extracted

Family

blustealer

Credentials

Protocol: smtp
Host:
bojtai.club
Port:
587
Username:
[email protected]
Password:
hcx8knJINooP

Signatures

BluStealer
A Modular information stealer written in Visual Basic.
stealer blustealer
Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2912 set thread context of 1768	2912	641be17bc535de14c143b803d9da4d1b.exe	32

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2912	641be17bc535de14c143b803d9da4d1b.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1768	vbc.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 2912 wrote to memory of 2836	2912	641be17bc535de14c143b803d9da4d1b.exe	30
PID 2912 wrote to memory of 2836	2912	641be17bc535de14c143b803d9da4d1b.exe	30
PID 2912 wrote to memory of 2836	2912	641be17bc535de14c143b803d9da4d1b.exe	30
PID 2912 wrote to memory of 2836	2912	641be17bc535de14c143b803d9da4d1b.exe	30
PID 2912 wrote to memory of 1768	2912	641be17bc535de14c143b803d9da4d1b.exe	32
PID 2912 wrote to memory of 1768	2912	641be17bc535de14c143b803d9da4d1b.exe	32
PID 2912 wrote to memory of 1768	2912	641be17bc535de14c143b803d9da4d1b.exe	32
PID 2912 wrote to memory of 1768	2912	641be17bc535de14c143b803d9da4d1b.exe	32
PID 2912 wrote to memory of 1768	2912	641be17bc535de14c143b803d9da4d1b.exe	32
PID 2912 wrote to memory of 1768	2912	641be17bc535de14c143b803d9da4d1b.exe	32
PID 2912 wrote to memory of 1768	2912	641be17bc535de14c143b803d9da4d1b.exe	32
PID 2912 wrote to memory of 1768	2912	641be17bc535de14c143b803d9da4d1b.exe	32
PID 2912 wrote to memory of 1768	2912	641be17bc535de14c143b803d9da4d1b.exe	32

C:\Users\Admin\AppData\Local\Temp\641be17bc535de14c143b803d9da4d1b.exe
"C:\Users\Admin\AppData\Local\Temp\641be17bc535de14c143b803d9da4d1b.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2912
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c
  2⤵
  PID:2836
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
  2⤵
  - Suspicious use of SetWindowsHookEx
  PID:1768

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scripting

T1064

Persistence

Privilege Escalation

Defense Evasion

Scripting

T1064

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1768-5-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/1768-7-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/1768-9-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/1768-13-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/1768-14-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/1768-16-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/1768-19-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/2912-0-0x0000000000230000-0x0000000000478000-memory.dmp

Filesize
2.3MB

Download
memory/2912-1-0x0000000074960000-0x000000007504E000-memory.dmp

Filesize
6.9MB

Download
memory/2912-2-0x0000000004F80000-0x0000000004FC0000-memory.dmp

Filesize
256KB

Download
memory/2912-3-0x0000000074960000-0x000000007504E000-memory.dmp

Filesize
6.9MB

Download
memory/2912-4-0x0000000004F80000-0x0000000004FC0000-memory.dmp

Filesize
256KB

Download