744214bbe4ab445a2778cc66eb4a8a5b64673b245cfbf3500e14ed70f5906ef1

Resubmissions

09/03/2025, 14:00

250309-ra17fasvb1 10

14/02/2025, 20:10

250214-yxrd3sxpgl 10

Analysis

max time kernel
163s
max time network
164s
platform
windows11-21h2_x64
resource
win11-20250217-en
resource tags

arch:x64arch:x86image:win11-20250217-enlocale:en-usos:windows11-21h2-x64system
submitted
09/03/2025, 14:00

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

LBLeak/Build.bat
Size

741B
MD5

4e46e28b2e61643f6af70a8b19e5cb1f
SHA1

804a1d0c4a280b18e778e4b97f85562fa6d5a4e6
SHA256

8e83a1727696ced618289f79674b97305d88beeeabf46bd25fc77ac53c1ae339
SHA512

009b17b515ff0ea612e54d8751eef07f1e2b54db07e6cd69a95e7adf775f3c79a0ea91bff2fe593f2314807fdc00c75d80f1807b7dbe90f0fcf94607e675047b

Score

3^/10

discovery

Malware Config

Signatures

System Location Discovery: System Language Discovery 1 TTPs 7 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	builder.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	builder.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	builder.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	keygen.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	builder.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	builder.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	builder.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 3484 wrote to memory of 3928	3484	cmd.exe	81
PID 3484 wrote to memory of 3928	3484	cmd.exe	81
PID 3484 wrote to memory of 3928	3484	cmd.exe	81
PID 3484 wrote to memory of 2588	3484	cmd.exe	82
PID 3484 wrote to memory of 2588	3484	cmd.exe	82
PID 3484 wrote to memory of 2588	3484	cmd.exe	82
PID 3484 wrote to memory of 240	3484	cmd.exe	83
PID 3484 wrote to memory of 240	3484	cmd.exe	83
PID 3484 wrote to memory of 240	3484	cmd.exe	83
PID 3484 wrote to memory of 5784	3484	cmd.exe	84
PID 3484 wrote to memory of 5784	3484	cmd.exe	84
PID 3484 wrote to memory of 5784	3484	cmd.exe	84
PID 3484 wrote to memory of 1212	3484	cmd.exe	85
PID 3484 wrote to memory of 1212	3484	cmd.exe	85
PID 3484 wrote to memory of 1212	3484	cmd.exe	85
PID 3484 wrote to memory of 2736	3484	cmd.exe	86
PID 3484 wrote to memory of 2736	3484	cmd.exe	86
PID 3484 wrote to memory of 2736	3484	cmd.exe	86
PID 3484 wrote to memory of 3216	3484	cmd.exe	88
PID 3484 wrote to memory of 3216	3484	cmd.exe	88
PID 3484 wrote to memory of 3216	3484	cmd.exe	88

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\LBLeak\Build.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:3484
- C:\Users\Admin\AppData\Local\Temp\LBLeak\keygen.exe
  keygen -path C:\Users\Admin\AppData\Local\Temp\LBLeak\Build -pubkey pub.key -privkey priv.key
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3928
- C:\Users\Admin\AppData\Local\Temp\LBLeak\builder.exe
  builder -type dec -privkey C:\Users\Admin\AppData\Local\Temp\LBLeak\Build\priv.key -config config.json -ofile C:\Users\Admin\AppData\Local\Temp\LBLeak\Build\LB3Decryptor.exe
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2588
- C:\Users\Admin\AppData\Local\Temp\LBLeak\builder.exe
  builder -type enc -exe -pubkey C:\Users\Admin\AppData\Local\Temp\LBLeak\Build\pub.key -config config.json -ofile C:\Users\Admin\AppData\Local\Temp\LBLeak\Build\LB3.exe
  2⤵
  - System Location Discovery: System Language Discovery
  PID:240
- C:\Users\Admin\AppData\Local\Temp\LBLeak\builder.exe
  builder -type enc -exe -pass -pubkey C:\Users\Admin\AppData\Local\Temp\LBLeak\Build\pub.key -config config.json -ofile C:\Users\Admin\AppData\Local\Temp\LBLeak\Build\LB3_pass.exe
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5784
- C:\Users\Admin\AppData\Local\Temp\LBLeak\builder.exe
  builder -type enc -dll -pubkey C:\Users\Admin\AppData\Local\Temp\LBLeak\Build\pub.key -config config.json -ofile C:\Users\Admin\AppData\Local\Temp\LBLeak\Build\LB3_Rundll32.dll
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1212
- C:\Users\Admin\AppData\Local\Temp\LBLeak\builder.exe
  builder -type enc -dll -pass -pubkey C:\Users\Admin\AppData\Local\Temp\LBLeak\Build\pub.key -config config.json -ofile C:\Users\Admin\AppData\Local\Temp\LBLeak\Build\LB3_Rundll32_pass.dll
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2736
- C:\Users\Admin\AppData\Local\Temp\LBLeak\builder.exe
  builder -type enc -ref -pubkey C:\Users\Admin\AppData\Local\Temp\LBLeak\Build\pub.key -config config.json -ofile C:\Users\Admin\AppData\Local\Temp\LBLeak\Build\LB3_ReflectiveDll_DllMain.dll
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3216

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\LBLeak\Build\priv.key

Filesize
344B

MD5
1825a3e1349adeabe79e37b82d005d20

SHA1
d331bf4b255cb2f33478039334b9080771a37737

SHA256
5fe15815d20781620b3f04eecf5845c6b555e8bf0eb14cc80d3e293d7514daf4

SHA512
c7d51857ff00b0db0c66ce6fd69914811d038793de262159e84508a28aba94a099b6f7e6a2d03a3dc13f1c7db467ea08eef05d20e2abf2dd49475671faf77fdb

Download Submit
C:\Users\Admin\AppData\Local\Temp\LBLeak\Build\pub.key

Filesize
344B

MD5
24b4f4770549b2344ffea1b2af961811

SHA1
f6b49358024cc5387811869702ba17196572b645

SHA256
e020a92ce2ff7c87eb705578d8049b9e78013af5cbaa5253b9479acb986a6f8d

SHA512
4424f0639ca53671a08eaf7c728fff468df954964d64ce8daa8ed801943dc61e3b78a1fae8d001f2d8df3dd97d330e9ec1841ae0b3ae82e4d0a5d3346880b660

Download Submit