e1f86d457e48952626981f08e1e311c3c259b434eace3739bfd89d50e64a8630

Analysis

max time kernel
150s
max time network
125s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
31/07/2026, 08:40

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General

Target
2026-07-31_fe4564bf12c8fa5e71ef645b3284527b_elex_wannacry.exe
Size 81KB
Sample260731-kk55taff35
SHA256 e1f86d457e48952626981f08e1e311c3c259b434eace3739bfd89d50e64a8630
MD5 fe4564bf12c8fa5e71ef645b3284527b
SHA1 356fe166e91cc7f0f35f6ac894da8b4cc4d16266
SHA512 5b254506ac32dbf389e9097acadd59148ca868c4386de114cd567165b0b39faa4bb2af508428ff4af8622974f4fa1cf2947353d0e3cd2741bca47ab91940c199
SSDEEP 1536:0eNbbLsha0pLXtdNWm2uNYhm1cSMehm1s/XZI2WuX:0eNwDpXt7CLSMehm2/XZJX
TLSH
T1DE835B13EA970CB3FA1045B205AE26B7E17BF8995B396F475790DE9E1932582CC3034E
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

discovery persistence

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
5100	winlgon.exe
2120	winlgon.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\winlgon.exe = "c:\\users\\admin\\appdata\\local\\temp\\winlgon.exe"	2026-07-31_fe4564bf12c8fa5e71ef645b3284527b_elex_wannacry.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4046655672-1449839301-2197395821-1000\Software\Microsoft\Windows\CurrentVersion\Run\winlgon.exe = "c:\\users\\admin\\appdata\\local\\temp\\winlgon.exe"	2026-07-31_fe4564bf12c8fa5e71ef645b3284527b_elex_wannacry.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 5 IoCs

pid	pid_target	Process	procid_target
3328	5100	WerFault.exe	90
4504	5276	WerFault.exe	87
5000	2120	WerFault.exe	92
4184	5100	WerFault.exe	90
3064	2120	WerFault.exe	92

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.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winlgon.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winlgon.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-07-31_fe4564bf12c8fa5e71ef645b3284527b_elex_wannacry.exe

Suspicious use of SetWindowsHookEx 11 IoCs

pid	Process
5276	2026-07-31_fe4564bf12c8fa5e71ef645b3284527b_elex_wannacry.exe
5100	winlgon.exe
5100	winlgon.exe
5100	winlgon.exe
5100	winlgon.exe
5100	winlgon.exe
2120	winlgon.exe
2120	winlgon.exe
2120	winlgon.exe
2120	winlgon.exe
2120	winlgon.exe

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 5276 wrote to memory of 5100	5276	2026-07-31_fe4564bf12c8fa5e71ef645b3284527b_elex_wannacry.exe	90

C:\Users\Admin\AppData\Local\Temp\2026-07-31_fe4564bf12c8fa5e71ef645b3284527b_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-07-31_fe4564bf12c8fa5e71ef645b3284527b_elex_wannacry.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5276
- C:\Users\Admin\appdata\local\temp\winlgon.exe
  "C:\Users\Admin\appdata\local\temp\winlgon.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:5100
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 5100 -s 744
    3⤵
    - Program crash
    PID:3328
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 5100 -s 752
    3⤵
    - Program crash
    PID:4184
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5276 -s 972
  2⤵
  - Program crash
  PID:4504

\??\c:\users\admin\appdata\local\temp\winlgon.exe
c:\users\admin\appdata\local\temp\winlgon.exe
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
PID:2120
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2120 -s 724
  2⤵
  - Program crash
  PID:5000
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2120 -s 960
  2⤵
  - Program crash
  PID:3064

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 5100 -ip 5100
1⤵
PID:4416

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 2120 -ip 2120
1⤵
PID:5772

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 5276 -ip 5276
1⤵
PID:248

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 676 -p 5100 -ip 5100
1⤵
PID:1368

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 692 -p 2120 -ip 2120
1⤵
PID:696

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

winlgon.exe

Path C:\Users\Admin\AppData\Local\Temp\winlgon.exe
Size 81KB
SHA256 10aa9f5c57ff2915e6901962e6f372e43e3a89adc353e14a80baa20817c2d02e
MD5 74c4b1a16b43516ecfb7d164325115cf
SHA1 f6f20664d48a4d3fb32dd68486ee64b67c38720b
SHA512 48257d9a376dd366d920287109134f49ce7b243299d6c701deef24a59fd13e8f15007841a2d470dcf584117fdcd469573f14340c581fe25d0a0eacd6166103af
SSDEEP 1536:0eNbbLsha0pLXtdNWm2uNYhm1cSMehm1s/XZI2Wup:0eNwDpXt7CLSMehm2/XZJp
TLSH
T1B2835B13EA970CB3FA1045B205AE26B7E17BF8995B396F475790DE9E1932582CC3034E
MD5 SHA1 SHA512 SSDEEP TLSH

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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