Analysis
- max time kernel
149s - max time network
121s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
- submitted
11/05/2026, 04:36
General
- Target 2026-05-11_4c0bfded95309c9fdb6608aa5d7f8683_conti.exe
- Size 251KB
- Sample260511-e8qgdaex7p
- SHA256 7919393c986837214d6176929503191b0eaba88f6d59a93bedaa4b4e683934d8
Score
10/10
Malware Config
Extracted
Family
-
umbral
Version
-
v1.3
C2
-
https://discord.com/api/webhooks/1503127229838655498/yW6stOxEO6MSuCT5qcEuxAGVYHehJUHcWg1SFAK1gZZL8kdL4OaHd5LICi_1AsVD0WSd
Signatures
- Family: Umbral
Umbral stealer is an open-source modular stealer written in C#.
- Detects Umbral payload 4 IoCs
- Detects executables attemping to enumerate video devices using WMI 2 IoCs
- Detects executables containing possible sandbox analysis VM names 2 IoCs
- Detects executables containing possible sandbox analysis VM usernames 2 IoCs
- Detects executables containing possible sandbox system UUIDs 2 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Suspicious use of WriteProcessMemory 2 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-05-11_4c0bfded95309c9fdb6608aa5d7f8683_conti.exe"C:\Users\Admin\AppData\Local\Temp\2026-05-11_4c0bfded95309c9fdb6608aa5d7f8683_conti.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\2026-05-11_4c0bfded95309c9fdb6608aa5d7f8683_conti.exe"C:\Users\Admin\AppData\Local\Temp\2026-05-11_4c0bfded95309c9fdb6608aa5d7f8683_conti.exe"2⤵
-
Network
MITRE ATT&CK Matrix
Replay Monitor
Loading Replay Monitor...
Downloads
memory/4584-0-0x0000023E23C80000-0x0000023E23CC0000-memory.dmp
memory/4584-2-0x0000023E23C80000-0x0000023E23CC0000-memory.dmp
memory/5072-3-0x00007FF688200000-0x00007FF688246000-memory.dmp