76640a5412efd2252c56074a71103f07e375f54bf4a5a30e5abdfd0dba7cbd6f

Analysis

max time kernel
150s
max time network
132s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260911-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
02/11/2026, 10:51

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General

Target
2026-11-01_b72ccb175df40dc678cd03d0415485ef_elex_wannacry.exe
Size 138KB
Sample261102-mx52pabt3m
SHA256 76640a5412efd2252c56074a71103f07e375f54bf4a5a30e5abdfd0dba7cbd6f
MD5 b72ccb175df40dc678cd03d0415485ef
SHA1 b3e3a00bdae8dacf324269514759f57fe88ba044
SHA512 49b330ebd582f4197667dfd3b3a6e356ce91a61b5b66ff6eaf7df8fc6ffce20b1472c836d546f3d744f3ac3a151f82151521eb339c0e90656256ead8d4fbb282
SSDEEP 1536:qxDQSrO60trm4+GNgEPDrQc9XYfr13zSZZ9v5kDPBQUNxkVnQnJuOP0IQC:YM+GNdDr3Y53zSZ/v2PCe6Qnf06
TLSH
T15BD39D645942C462D0401A3A67FAD7F502717DBA2E087B13BFA8F7BF98B2D08ED1D644
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

defense_evasion discovery execution

Malware Config

Signatures

Deletes itself 1 TTPs 1 IoCs

defense_evasion

File Deletion

T1070.004

pid	Process
3384	kpmux.exe

Executes dropped EXE 1 IoCs

pid	Process
3384	kpmux.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.

execution

Windows Command Shell

T1059.003

pid	Process
4484	cmd.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4700	3384	WerFault.exe	92

System Location Discovery: System Language Discovery 1 TTPs 4 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	2026-11-01_b72ccb175df40dc678cd03d0415485ef_elex_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	kpmux.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
4484	cmd.exe
4980	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4980	PING.EXE

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4888	2026-11-01_b72ccb175df40dc678cd03d0415485ef_elex_wannacry.exe
3384	kpmux.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4888 wrote to memory of 4484	4888	2026-11-01_b72ccb175df40dc678cd03d0415485ef_elex_wannacry.exe	89
PID 4484 wrote to memory of 4980	4484	cmd.exe	91
PID 4484 wrote to memory of 3384	4484	cmd.exe	92

C:\Users\Admin\AppData\Local\Temp\2026-11-01_b72ccb175df40dc678cd03d0415485ef_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-11-01_b72ccb175df40dc678cd03d0415485ef_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4888
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\kpmux.exe "C:\Users\Admin\AppData\Local\Temp\2026-11-01_b72ccb175df40dc678cd03d0415485ef_elex_wannacry.exe"
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:4484
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1 -n 2
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:4980
- - C:\Users\Admin\AppData\Local\Temp\kpmux.exe
    C:\Users\Admin\AppData\Local\Temp\\kpmux.exe "C:\Users\Admin\AppData\Local\Temp\2026-11-01_b72ccb175df40dc678cd03d0415485ef_elex_wannacry.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    PID:3384
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3384 -s 464
      4⤵
      Program crash
      PID:4700

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 3384 -ip 3384
1⤵
PID:3048

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

Windows Command Shell

T1059.003

Persistence

Privilege Escalation

Defense Evasion

Indicator Removal

T1070

File Deletion

T1070.004

Credential Access

Discovery

Remote System Discovery

T1018

System Location Discovery

T1614

System Language Discovery

T1614.001

System Network Configuration Discovery

T1016

Internet Connection Discovery

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

kpmux.exe

Path C:\Users\Admin\AppData\Local\Temp\kpmux.exe
Size 139KB
SHA256 8050619a95c94fb5ada90ca81857b9dfd0f52767d698ead7ce8811a6b0186407
MD5 03bb886caedcd8d732ac49063995928f
SHA1 e8ef6a66ea8812f92594ecb9131375bd61da1ff0
SHA512 e0f7408954989e580f11b61a7964693c0f40800efa185ca2ea24b3072778c4ca30281abc5c81a7cb2af29504f7b97a593cd4dd2bba1621d629374cb1ce5dc46e
SSDEEP 1536:qxDQSrO60trm4+GNgEPDrQc9XYfr13zSZZ9v5kDPBQUNxkVnQnJuOP0IQR:YM+GNdDr3Y53zSZ/v2PCe6Qnf05
TLSH
T139D39D645942C451D0401A3A67FAD7F502717DBA2E087B13BFA8F7BF98B2E08ED1D684
MD5 SHA1 SHA512 SSDEEP TLSH

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