Analysis
- max time kernel
149s - max time network
146s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
31/08/2026, 00:10
Behavioral task
behavioral1
Sample
2026-08-30_fb74fe530f26502c618a28a269405d12_elex_remcos_wannacry.exe
Resource
win10v2004-20260513-en
10 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-30_fb74fe530f26502c618a28a269405d12_elex_remcos_wannacry.exe
Resource
win11ltsc2024-20260709-en
10 signatures
150 seconds
General
- Target 2026-08-30_fb74fe530f26502c618a28a269405d12_elex_remcos_wannacry.exe
- Size 64KB
- Sample260831-af279abn21
- SHA256 2d87a700e5d3e7b3ee1e85c55cae82392669e4ff7c30bfd6cb4974db45ae1ebf
- MD5 fb74fe530f26502c618a28a269405d12
- SHA1 0ba5e063b633d7e76fa87f7fa4ecddf7a250db2d
- SHA512 dc9cd0bcb106a31e9d359d9abec937ec70ff3c607287e5366b7fc1fda1175036d39a75e6b385b51a8f45014425e7876c89c590ab3eda8c0ee82313889be4372f
- SSDEEP 384:VbLwOs8AHsc4zMfwhKQLrop4/CFsrdHWMZy:Vvw981JvhKQLrop4/wQpWMZy
- TLSH T132531A42CAC538A1E670FC700CE946B9516675CC8B4FA976FFFFEA0CC622971A729105
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
Malware Config
Signatures
- Detects Stormser aka Storm DDoS and StormAttack 5 IoCs
resource yara_rule behavioral1/memory/1844-0-0x0000000000400000-0x0000000000410000-memory.dmp family_stormser behavioral1/memory/1844-1-0x0000000000400000-0x0000000000410000-memory.dmp family_stormser behavioral1/files/0x0007000000024563-4.dat family_stormser behavioral1/memory/1844-7-0x0000000000400000-0x0000000000410000-memory.dmp family_stormser behavioral1/memory/4724-6-0x0000000000400000-0x0000000000410000-memory.dmp family_stormser - Detects Windows executables referencing non-Windows User-Agents 5 IoCs
resource yara_rule behavioral1/memory/1844-0-0x0000000000400000-0x0000000000410000-memory.dmp INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA behavioral1/memory/1844-1-0x0000000000400000-0x0000000000410000-memory.dmp INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA behavioral1/files/0x0007000000024563-4.dat INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA behavioral1/memory/1844-7-0x0000000000400000-0x0000000000410000-memory.dmp INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA behavioral1/memory/4724-6-0x0000000000400000-0x0000000000410000-memory.dmp INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA - Boot or Logon Autostart Execution: Active Setup 2 TTPs 2 IoCs
Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{2CA54C29-377F-4bc0-9BA6-52F3A13BCAC3} 2026-08-30_fb74fe530f26502c618a28a269405d12_elex_remcos_wannacry.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{2CA54C29-377F-4bc0-9BA6-52F3A13BCAC3}\stubpath = "C:\\Windows\\{2CA54C29-377F-4bc0-9BA6-52F3A13BCAC3}.exe" 2026-08-30_fb74fe530f26502c618a28a269405d12_elex_remcos_wannacry.exe - Executes dropped EXE 1 IoCs
pid Process 4724 {2CA54C29-377F-4bc0-9BA6-52F3A13BCAC3}.exe - Drops file in Windows directory 1 IoCs
description ioc Process File created C:\Windows\{2CA54C29-377F-4bc0-9BA6-52F3A13BCAC3}.exe 2026-08-30_fb74fe530f26502c618a28a269405d12_elex_remcos_wannacry.exe - Executes a command shell one-liner 1 TTPs 1 IoCs
Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.
pid Process 4888 cmd.exe - System Location Discovery: System Language Discovery 1 TTPs 3 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 {2CA54C29-377F-4bc0-9BA6-52F3A13BCAC3}.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2026-08-30_fb74fe530f26502c618a28a269405d12_elex_remcos_wannacry.exe - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeIncBasePriorityPrivilege 1844 2026-08-30_fb74fe530f26502c618a28a269405d12_elex_remcos_wannacry.exe - Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 1844 wrote to memory of 4724 1844 2026-08-30_fb74fe530f26502c618a28a269405d12_elex_remcos_wannacry.exe 92 PID 1844 wrote to memory of 4888 1844 2026-08-30_fb74fe530f26502c618a28a269405d12_elex_remcos_wannacry.exe 93
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-30_fb74fe530f26502c618a28a269405d12_elex_remcos_wannacry.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-30_fb74fe530f26502c618a28a269405d12_elex_remcos_wannacry.exe"1⤵
- Boot or Logon Autostart Execution: Active Setup
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1844 -
C:\Windows\{2CA54C29-377F-4bc0-9BA6-52F3A13BCAC3}.exeC:\Windows\{2CA54C29-377F-4bc0-9BA6-52F3A13BCAC3}.exe2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:4724
-
-
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c del C:\Users\Admin\AppData\Local\Temp\2026-0~1.EXE > nul2⤵
- Executes a command shell one-liner
- System Location Discovery: System Language Discovery
PID:4888
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\{2CA54C29-377F-4bc0-9BA6-52F3A13BCAC3}.exe
- Size 64KB
- SHA256 ee77d1875a721be0b8aa28dfae456bda2dace38c881280637d0e0bb417969484
- MD5 c245dafa53952c046691a75498ea1a3d
- SHA1 2c85587680186f6ee63263e334006f88aefd3bdc
- SHA512 c3b0ae49c50a110097d814be0be6060e33b8d6f85b056d1709978eb8dc7c6703bb657e71beaf7fa28f5d0095d990be2743762b9ff34724cd9f11f864ca0367e4
- SSDEEP 384:VbLwOs8AHsc4zMfwhKQLroP4/CFsrdHWMZy:Vvw981JvhKQLroP4/wQpWMZy
- TLSH T1DB531A42CAC538A1E670FC700CE946B9516675CC8B4FA976FFFFEA0CC622971A729105
- MD5 SHA1 SHA512 SSDEEP TLSH