blustealer | fce1e5d65d8375a41cd61ec690febb3ca3d2b6745194cc7b0f54727bf48197a9

Analysis

max time kernel
147s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
21-01-2024 06:16

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General

Target

6c90d471c7fa59b51f1a820b0fada9e3.exe
Size

2.3MB
MD5

6c90d471c7fa59b51f1a820b0fada9e3
SHA1

b3ec13231b0bf2cd938c8edb531f6fc087bdb083
SHA256

fce1e5d65d8375a41cd61ec690febb3ca3d2b6745194cc7b0f54727bf48197a9
SHA512

11da870880f5070a477d9ae76d7ddee310c9e79c164c098a912625c166e7d06af214687b9e1cc4fe9b8345bf7e0b696f790b435467fd5a5a02d9106942cc8197
SSDEEP

12288:e7tckxtGtCP7svhJrXFlrO02jle+qcs2eXNPnrEdrE:e7JxUtAsvhRDZO/qcsxXN/odo

Score

10^/10

blustealer stealer

Malware Config

Extracted

Family

blustealer

Credentials

Protocol: smtp
Host:
bojtai.xyz
Port:
587
Username:
[email protected]
Password:
(mr.GT^Eg#C6

Signatures

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

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\Control Panel\International\Geo\Nation	6c90d471c7fa59b51f1a820b0fada9e3.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\Control Panel\International\Geo\Nation	noot.exe

Executes dropped EXE 1 IoCs

pid	Process
4284	noot.exe

Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 3052 set thread context of 3924	3052	6c90d471c7fa59b51f1a820b0fada9e3.exe	94
PID 4284 set thread context of 5060	4284	noot.exe	125

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

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task/Job

T1053

pid	Process
1500	schtasks.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	3052	6c90d471c7fa59b51f1a820b0fada9e3.exe
Token: SeDebugPrivilege	4284	noot.exe
Token: SeManageVolumePrivilege	1472	svchost.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3924	vbc.exe
5060	vbc.exe

Suspicious use of WriteProcessMemory 31 IoCs

description	pid	Process	procid_target
PID 3052 wrote to memory of 4376	3052	6c90d471c7fa59b51f1a820b0fada9e3.exe	92
PID 3052 wrote to memory of 4376	3052	6c90d471c7fa59b51f1a820b0fada9e3.exe	92
PID 3052 wrote to memory of 4376	3052	6c90d471c7fa59b51f1a820b0fada9e3.exe	92
PID 3052 wrote to memory of 3924	3052	6c90d471c7fa59b51f1a820b0fada9e3.exe	94
PID 3052 wrote to memory of 3924	3052	6c90d471c7fa59b51f1a820b0fada9e3.exe	94
PID 3052 wrote to memory of 3924	3052	6c90d471c7fa59b51f1a820b0fada9e3.exe	94
PID 3052 wrote to memory of 3924	3052	6c90d471c7fa59b51f1a820b0fada9e3.exe	94
PID 3052 wrote to memory of 3924	3052	6c90d471c7fa59b51f1a820b0fada9e3.exe	94
PID 3052 wrote to memory of 3924	3052	6c90d471c7fa59b51f1a820b0fada9e3.exe	94
PID 3052 wrote to memory of 3924	3052	6c90d471c7fa59b51f1a820b0fada9e3.exe	94
PID 3052 wrote to memory of 3924	3052	6c90d471c7fa59b51f1a820b0fada9e3.exe	94
PID 3052 wrote to memory of 2876	3052	6c90d471c7fa59b51f1a820b0fada9e3.exe	106
PID 3052 wrote to memory of 2876	3052	6c90d471c7fa59b51f1a820b0fada9e3.exe	106
PID 3052 wrote to memory of 2876	3052	6c90d471c7fa59b51f1a820b0fada9e3.exe	106
PID 3052 wrote to memory of 4760	3052	6c90d471c7fa59b51f1a820b0fada9e3.exe	108
PID 3052 wrote to memory of 4760	3052	6c90d471c7fa59b51f1a820b0fada9e3.exe	108
PID 3052 wrote to memory of 4760	3052	6c90d471c7fa59b51f1a820b0fada9e3.exe	108
PID 2876 wrote to memory of 1500	2876	cmd.exe	110
PID 2876 wrote to memory of 1500	2876	cmd.exe	110
PID 2876 wrote to memory of 1500	2876	cmd.exe	110
PID 4284 wrote to memory of 4028	4284	noot.exe	126
PID 4284 wrote to memory of 4028	4284	noot.exe	126
PID 4284 wrote to memory of 4028	4284	noot.exe	126
PID 4284 wrote to memory of 5060	4284	noot.exe	125
PID 4284 wrote to memory of 5060	4284	noot.exe	125
PID 4284 wrote to memory of 5060	4284	noot.exe	125
PID 4284 wrote to memory of 5060	4284	noot.exe	125
PID 4284 wrote to memory of 5060	4284	noot.exe	125
PID 4284 wrote to memory of 5060	4284	noot.exe	125
PID 4284 wrote to memory of 5060	4284	noot.exe	125
PID 4284 wrote to memory of 5060	4284	noot.exe	125

C:\Users\Admin\AppData\Local\Temp\6c90d471c7fa59b51f1a820b0fada9e3.exe
"C:\Users\Admin\AppData\Local\Temp\6c90d471c7fa59b51f1a820b0fada9e3.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3052
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c
  2⤵
  PID:4376
- 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:3924
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /sc minute /mo 1 /tn "Nano" /tr "'C:\Users\Admin\AppData\Roaming\noot\noot.exe'" /f
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2876
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /sc minute /mo 1 /tn "Nano" /tr "'C:\Users\Admin\AppData\Roaming\noot\noot.exe'" /f
    3⤵
    - Creates scheduled task(s)
    PID:1500
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c copy "C:\Users\Admin\AppData\Local\Temp\6c90d471c7fa59b51f1a820b0fada9e3.exe" "C:\Users\Admin\AppData\Roaming\noot\noot.exe"
  2⤵
  PID:4760

C:\Users\Admin\AppData\Roaming\noot\noot.exe
C:\Users\Admin\AppData\Roaming\noot\noot.exe
1⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4284
- 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:5060
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c
  2⤵
  PID:4028

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" "C:\Windows\SYSTEM32\EDGEHTML.dll",#141 Microsoft.VCLibs.140.00_8wekyb3d8bbwe
1⤵
PID:3912

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k UnistackSvcGroup
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1472

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scripting

T1064

Persistence

Scheduled Task/Job

T1053

Privilege Escalation

Scheduled Task/Job

T1053

Defense Evasion

Scripting

T1064

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\noot\noot.exe

Filesize
2.2MB

MD5
338086ef63fe1e8abdd6962e32ad97c2

SHA1
90c2ba21cbbd3d069428fe957b2700962af0944d

SHA256
e89a9151f4ca8f5a4299d143c5af61fd4bbaecef40016e7938c4828590c186df

SHA512
8adbddfdf2a4bff877423e849b3188ff460a1be4ebc765bc14a71f79737fd10d26f3ea3adda1b8322b6c3d8e0566695322b05f3450f9809224b7dd3ccdd66bb9

Download Submit
C:\Users\Admin\AppData\Roaming\noot\noot.exe

Filesize
2.3MB

MD5
6c90d471c7fa59b51f1a820b0fada9e3

SHA1
b3ec13231b0bf2cd938c8edb531f6fc087bdb083

SHA256
fce1e5d65d8375a41cd61ec690febb3ca3d2b6745194cc7b0f54727bf48197a9

SHA512
11da870880f5070a477d9ae76d7ddee310c9e79c164c098a912625c166e7d06af214687b9e1cc4fe9b8345bf7e0b696f790b435467fd5a5a02d9106942cc8197

Download Submit
memory/1472-55-0x000002047BD30000-0x000002047BD31000-memory.dmp

Filesize
4KB

Download
memory/1472-56-0x000002047BD30000-0x000002047BD31000-memory.dmp

Filesize
4KB

Download
memory/1472-57-0x000002047BE40000-0x000002047BE41000-memory.dmp

Filesize
4KB

Download
memory/1472-53-0x000002047BD00000-0x000002047BD01000-memory.dmp

Filesize
4KB

Download
memory/1472-37-0x0000020473990000-0x00000204739A0000-memory.dmp

Filesize
64KB

Download
memory/1472-21-0x0000020473890000-0x00000204738A0000-memory.dmp

Filesize
64KB

Download
memory/3052-13-0x0000000002A60000-0x0000000002A70000-memory.dmp

Filesize
64KB

Download
memory/3052-5-0x00000000052E0000-0x00000000052EA000-memory.dmp

Filesize
40KB

Download
memory/3052-1-0x0000000074F60000-0x0000000075710000-memory.dmp

Filesize
7.7MB

Download
memory/3052-0-0x00000000008F0000-0x0000000000B4A000-memory.dmp

Filesize
2.4MB

Download
memory/3052-12-0x0000000074F60000-0x0000000075710000-memory.dmp

Filesize
7.7MB

Download
memory/3052-3-0x0000000004EB0000-0x0000000004F42000-memory.dmp

Filesize
584KB

Download
memory/3052-2-0x0000000005380000-0x0000000005924000-memory.dmp

Filesize
5.6MB

Download
memory/3052-4-0x0000000002A60000-0x0000000002A70000-memory.dmp

Filesize
64KB

Download
memory/3924-6-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/3924-8-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/3924-11-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/4284-20-0x0000000004D20000-0x0000000004D30000-memory.dmp

Filesize
64KB

Download
memory/4284-19-0x0000000074F60000-0x0000000075710000-memory.dmp

Filesize
7.7MB

Download
memory/4284-18-0x0000000000AF0000-0x0000000000D4A000-memory.dmp

Filesize
2.4MB

Download
memory/5060-63-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads