9f6610d25db298086a754fcd297e2132130c5a7ac4b155a5893d460732cf8ee3

General

Target
2026-09-07_a92a0c73f308513fc2521fe0c47e5340_elex_wannacry.exe
Size 88KB
Sample260908-kl956avyd1
SHA256 9f6610d25db298086a754fcd297e2132130c5a7ac4b155a5893d460732cf8ee3
MD5 a92a0c73f308513fc2521fe0c47e5340
SHA1 c49d28ec4b11880473e7394e11dc7f1471600973
SHA512 f01d683ebb99816b3b45ae909c8feaa0372b0cf46c7b455e28ca976fb1d6e713c4397d7e62133a4822d685521f9c58ba6f9aaa6a10fbd2a96c4fdb87c3de50d1
SSDEEP 1536:TSSABNx6vb4RoI47zzzzzzzzzvfxzVzNrzzzgzzzzzzzzzzzzzzzz6zzzdzzzzl3:eSABNx6vb4RoI4pyjHYLhal01UoPXb
TLSH
T173939D07ABA598E5E1206C70161D773493EE986F3B2497A38384FE4EA533DC5EC3614A
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
1512	mvmzb.exe

Executes dropped EXE 1 IoCs

pid	Process
1512	mvmzb.exe

Loads dropped DLL 1 IoCs

pid	Process
300	rundll32.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
5772	cmd.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3468	300	WerFault.exe	93

System Location Discovery: System Language Discovery 1 TTPs 5 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	2026-09-07_a92a0c73f308513fc2521fe0c47e5340_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	mvmzb.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.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
3352	PING.EXE
5772	cmd.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
3352	PING.EXE

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1080	2026-09-07_a92a0c73f308513fc2521fe0c47e5340_elex_wannacry.exe
1512	mvmzb.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1080 wrote to memory of 5772	1080	2026-09-07_a92a0c73f308513fc2521fe0c47e5340_elex_wannacry.exe	89
PID 5772 wrote to memory of 3352	5772	cmd.exe	91
PID 5772 wrote to memory of 1512	5772	cmd.exe	92
PID 1512 wrote to memory of 300	1512	mvmzb.exe	93

C:\Users\Admin\AppData\Local\Temp\2026-09-07_a92a0c73f308513fc2521fe0c47e5340_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-09-07_a92a0c73f308513fc2521fe0c47e5340_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1080
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&c:\mvmzb.exe "C:\Users\Admin\AppData\Local\Temp\2026-09-07_a92a0c73f308513fc2521fe0c47e5340_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:5772
- - 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:3352
- - \??\c:\mvmzb.exe
    c:\mvmzb.exe "C:\Users\Admin\AppData\Local\Temp\2026-09-07_a92a0c73f308513fc2521fe0c47e5340_elex_wannacry.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:1512
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\zutnl\bigotrmec.dll",DoVirusScan c:\mvmzb.exe
      4⤵
      Loads dropped DLL
      System Location Discovery: System Language Discovery
      PID:300
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 300 -s 476
        5⤵
        Program crash
        
        PID:3468

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 300 -ip 300
1⤵
PID:4976

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

Windows Command Shell

1

T1059.003

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Remote System Discovery

1

T1018

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

System Network Configuration Discovery

1

T1016

Internet Connection Discovery

1

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

mvmzb.exe

Path \??\c:\mvmzb.exe
Size 88KB
SHA256 86521bda26f1b052c2dfd6b5c8e87711e1a011e4ffebf107f32da91e349e5af3
MD5 2cf78fe8d8a75dd98fa13db67477deb3
SHA1 baa89b42ee783b3578c6733a042bb0735de401d0
SHA512 7abfe26a729e0c1eb09439a8d99fe5cce8f9be513df88deeb6bc4c0f8807df6d0564dd6df010eb54e132151fa34881fd074ecf464ab8e7140698483843dd60d6
SSDEEP 1536:TSSABNx6vb4RoI47zzzzzzzzzvfxzVzNrzzzgzzzzzzzzzzzzzzzz6zzzdzzzzlr:eSABNx6vb4RoI4pyjHYLhal01UoPXv
TLSH
T14F939D07ABA598D5E1206C70161D773493EE986F3B2497A38384FE4EE533DC5EC3618A
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

bigotrmec.dll

Path \??\c:\zutnl\bigotrmec.dll
Size 50KB
SHA256 7604a0d3e695ff2f47b2961a860aa77e41952df48c132c18ac8d84e6ed3ee8eb
MD5 18cc91cc0c4c41e39a2c5310e760f0ef
SHA1 aaacc94db8d8a37e5d34878aa259d3274a5ff2a7
SHA512 8abba5220a7216288d0d2c683a5d01b796b1179464a2432eda991004348223c822c54ab39fd19302ff01974ec8d026e98280e9f1bdb67178126d75a974ecc7e7
SSDEEP 768:Z+arYIR3u5v4bGwCl56LNQQe5JBtGf1oTYtx/qQvo9:ZPrG57TzDxJS6Etx/ZvO
TLSH
T1AB33E178E1F4B8F6E46EAB345D82146DB1C16BD34D3080BA079224AF6C37E578B52731
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/300-9-0x0000000010000000-0x0000000010032000-memory.dmp

Download

memory/1080-0-0x0000000000400000-0x0000000000417000-memory.dmp

Download

memory/1080-2-0x0000000000400000-0x0000000000417000-memory.dmp

Download

memory/1512-6-0x0000000000400000-0x0000000000417000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads