Analysis
- max time kernel
150s - max time network
144s - 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, 13:44
Static task
static1
Behavioral task
behavioral1
Sample
557ece892da38340d69ed65ac32d1fe4f714643342dedbcbb166e5f334d82311.exe
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
557ece892da38340d69ed65ac32d1fe4f714643342dedbcbb166e5f334d82311.exe
Resource
win11ltsc2024-20260709-en
General
- Target 557ece892da38340d69ed65ac32d1fe4f714643342dedbcbb166e5f334d82311.exe
- Size 757KB
- Sample260809-q2bv7a11ft
- SHA256 557ece892da38340d69ed65ac32d1fe4f714643342dedbcbb166e5f334d82311
- MD5 2b1cd2906bc223edba908c8ea7cc0f65
- SHA1 66ca8c806a1f64a458cd452f2e28fd1a093d127b
- SHA512 1ed420a3819a6439a5950908454a50e800a179e1a14b61f9547f133ad40901af2ba17c1418e6017835c8f0046e0feb0aac34243f4daf36f0db1f449fb1e3e334
- SSDEEP 12288:WfZqnURqLIU3uuysT1lvXyTzNvWrHvvWPnHrKEseRm2wugRbEWmuk01:WfZGC4B1dXy/Ku/HFseRm2CN/k01
- TLSH T165F41231B4C2D8B2CBAA45355C32C9B956BF7C761674CC6B73652BAE1E313F06E16A00
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Extracted
-
djvu
-
http://habrafa.com/test2/get.php
-
extension
.wiaw
-
offline_id
4p0Nzrg1q0ND5of5Gtp2UBjthSXuE8VxnMrd4vt1
- 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/2404-2-0x0000000003A00000-0x0000000003B1B000-memory.dmp family_djvu behavioral2/memory/3308-3-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2404 set thread context of 3308 2404 557ece892da38340d69ed65ac32d1fe4f714643342dedbcbb166e5f334d82311.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 557ece892da38340d69ed65ac32d1fe4f714643342dedbcbb166e5f334d82311.exe - Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 2404 wrote to memory of 3308 2404 557ece892da38340d69ed65ac32d1fe4f714643342dedbcbb166e5f334d82311.exe 89 PID 2404 wrote to memory of 3308 2404 557ece892da38340d69ed65ac32d1fe4f714643342dedbcbb166e5f334d82311.exe 89 PID 2404 wrote to memory of 3308 2404 557ece892da38340d69ed65ac32d1fe4f714643342dedbcbb166e5f334d82311.exe 89 PID 2404 wrote to memory of 3308 2404 557ece892da38340d69ed65ac32d1fe4f714643342dedbcbb166e5f334d82311.exe 89 PID 2404 wrote to memory of 3308 2404 557ece892da38340d69ed65ac32d1fe4f714643342dedbcbb166e5f334d82311.exe 89 PID 2404 wrote to memory of 3308 2404 557ece892da38340d69ed65ac32d1fe4f714643342dedbcbb166e5f334d82311.exe 89 PID 2404 wrote to memory of 3308 2404 557ece892da38340d69ed65ac32d1fe4f714643342dedbcbb166e5f334d82311.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\557ece892da38340d69ed65ac32d1fe4f714643342dedbcbb166e5f334d82311.exe"C:\Users\Admin\AppData\Local\Temp\557ece892da38340d69ed65ac32d1fe4f714643342dedbcbb166e5f334d82311.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2404 -
C:\Users\Admin\AppData\Local\Temp\557ece892da38340d69ed65ac32d1fe4f714643342dedbcbb166e5f334d82311.exe"C:\Users\Admin\AppData\Local\Temp\557ece892da38340d69ed65ac32d1fe4f714643342dedbcbb166e5f334d82311.exe"2⤵PID:3308
-