Analysis
- max time kernel
150s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
09/08/2026, 15:27
Static task
static1
Behavioral task
behavioral1
Sample
347c3b434e770b38ce06819cad853f93cb139fb4304e40a78933d92f56749d12.exe
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
347c3b434e770b38ce06819cad853f93cb139fb4304e40a78933d92f56749d12.exe
Resource
win11ltsc2024-20260709-en
General
- Target 347c3b434e770b38ce06819cad853f93cb139fb4304e40a78933d92f56749d12.exe
- Size 778KB
- Sample260809-sv96hsba98
- SHA256 347c3b434e770b38ce06819cad853f93cb139fb4304e40a78933d92f56749d12
- MD5 3d3158bde3e31d3b7b9c1e1e2398ddd5
- SHA1 f1d1ff15a739eb1fc5460c3dff7b2ad78ca53788
- SHA512 5b7016ac1d24913b28447980e51f0a7ebd9cd6fe370772409f402c04ea009384656913527a1c3e63c215bcda19b63080c636c3516cd21ee1f477479081e94a7d
- SSDEEP 12288:U/2nq6Bx5H+0g3zSKAPIOLTGEuSzbgQX6D3V6YzN4188r6McBg7bO0RtrEhXM:UGqmeXSKnKRsc7CKjrABg766ri
- TLSH T1350501167381903AD1A606759D6EC3FC3B6ABDA21F716AD7375D662F1E302D0CA32306
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Extracted
-
djvu
-
http://zexeq.com/test2/get.php
-
extension
.nbwr
-
offline_id
csCsb6cUvy0iMa6NgGCGH0hSfXQlGjZVEmFVkgt1
- payload_url
-
ransomnote
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Signatures
- Family: Djvu Ransomware
Ransomware which is a variant of the STOP family.
- Detected Djvu ransomware 2 IoCs
resource yara_rule behavioral2/memory/3052-2-0x0000000002A50000-0x0000000002B6B000-memory.dmp family_djvu behavioral2/memory/4900-3-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 3052 set thread context of 4900 3052 347c3b434e770b38ce06819cad853f93cb139fb4304e40a78933d92f56749d12.exe 89 - System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 347c3b434e770b38ce06819cad853f93cb139fb4304e40a78933d92f56749d12.exe - Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 3052 wrote to memory of 4900 3052 347c3b434e770b38ce06819cad853f93cb139fb4304e40a78933d92f56749d12.exe 89 PID 3052 wrote to memory of 4900 3052 347c3b434e770b38ce06819cad853f93cb139fb4304e40a78933d92f56749d12.exe 89 PID 3052 wrote to memory of 4900 3052 347c3b434e770b38ce06819cad853f93cb139fb4304e40a78933d92f56749d12.exe 89 PID 3052 wrote to memory of 4900 3052 347c3b434e770b38ce06819cad853f93cb139fb4304e40a78933d92f56749d12.exe 89 PID 3052 wrote to memory of 4900 3052 347c3b434e770b38ce06819cad853f93cb139fb4304e40a78933d92f56749d12.exe 89 PID 3052 wrote to memory of 4900 3052 347c3b434e770b38ce06819cad853f93cb139fb4304e40a78933d92f56749d12.exe 89 PID 3052 wrote to memory of 4900 3052 347c3b434e770b38ce06819cad853f93cb139fb4304e40a78933d92f56749d12.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\347c3b434e770b38ce06819cad853f93cb139fb4304e40a78933d92f56749d12.exe"C:\Users\Admin\AppData\Local\Temp\347c3b434e770b38ce06819cad853f93cb139fb4304e40a78933d92f56749d12.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3052 -
C:\Users\Admin\AppData\Local\Temp\347c3b434e770b38ce06819cad853f93cb139fb4304e40a78933d92f56749d12.exe"C:\Users\Admin\AppData\Local\Temp\347c3b434e770b38ce06819cad853f93cb139fb4304e40a78933d92f56749d12.exe"2⤵PID:4900
-