blustealer | 92b2a58b647e00a887c4dba92d1e6d7ff4d50221ed19a618749305ce6be1c2ec

Analysis

max time kernel
145s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20230703-en
resource tags

arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
submitted
07-08-2023 09:16

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General

Target

92b2a58b647e00a887c4dba92d1e6d7ff4d50221ed19a618749305ce6be1c2ec.exe
Size

427KB
MD5

c84fa18b96495c6e841f4f51f13be99f
SHA1

3f02e9012781268a287f82d0f172e62da50a8f06
SHA256

92b2a58b647e00a887c4dba92d1e6d7ff4d50221ed19a618749305ce6be1c2ec
SHA512

ca432eb5e54b4170616d791e31d3c0f46a7d30ff5756a78a471209b3a7cddddcc8d2003faed0b1d8599a29841659a6af0f7f2b8f70e5b17c9f115bbf31ba9d5d
SSDEEP

12288:sWnxfgsRL4u/1AlLK6FRY2n8OPKxGvYmBcJ:3xgsRftD0C2nKGu

Score

10^/10

blustealer stealer

Malware Config

Extracted

Family

blustealer

https://api.telegram.org/bot6120911772:AAEvnEDbWRlbIuD1NP8MtmiY3tQ46T9SQyo/sendMessage?chat_id=6082430866

Signatures

BluStealer
A Modular information stealer written in Visual Basic.
stealer blustealer

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2764 set thread context of 4880	2764	92b2a58b647e00a887c4dba92d1e6d7ff4d50221ed19a618749305ce6be1c2ec.exe	83

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

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

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2764	92b2a58b647e00a887c4dba92d1e6d7ff4d50221ed19a618749305ce6be1c2ec.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 2764 wrote to memory of 4880	2764	92b2a58b647e00a887c4dba92d1e6d7ff4d50221ed19a618749305ce6be1c2ec.exe	83
PID 2764 wrote to memory of 4880	2764	92b2a58b647e00a887c4dba92d1e6d7ff4d50221ed19a618749305ce6be1c2ec.exe	83
PID 2764 wrote to memory of 4880	2764	92b2a58b647e00a887c4dba92d1e6d7ff4d50221ed19a618749305ce6be1c2ec.exe	83
PID 2764 wrote to memory of 4880	2764	92b2a58b647e00a887c4dba92d1e6d7ff4d50221ed19a618749305ce6be1c2ec.exe	83
PID 2764 wrote to memory of 4880	2764	92b2a58b647e00a887c4dba92d1e6d7ff4d50221ed19a618749305ce6be1c2ec.exe	83

C:\Users\Admin\AppData\Local\Temp\92b2a58b647e00a887c4dba92d1e6d7ff4d50221ed19a618749305ce6be1c2ec.exe
"C:\Users\Admin\AppData\Local\Temp\92b2a58b647e00a887c4dba92d1e6d7ff4d50221ed19a618749305ce6be1c2ec.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2764
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
  C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
  2⤵
  PID:4880

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2764-133-0x0000000000400000-0x000000000046C9C0-memory.dmp

Filesize
434KB

Download
memory/2764-151-0x0000000000400000-0x000000000046C9C0-memory.dmp

Filesize
434KB

Download
memory/4880-136-0x0000000000D70000-0x0000000000DD6000-memory.dmp

Filesize
408KB

Download
memory/4880-137-0x00000000746F0000-0x0000000074EA0000-memory.dmp

Filesize
7.7MB

Download
memory/4880-138-0x00000000058A0000-0x00000000058B0000-memory.dmp

Filesize
64KB

Download
memory/4880-139-0x00000000058B0000-0x000000000594C000-memory.dmp

Filesize
624KB

Download
memory/4880-141-0x00000000746F0000-0x0000000074EA0000-memory.dmp

Filesize
7.7MB

Download