7134474dadc2341015d695627af1925e9d01cfcf43a297c7a5299cba101ad3cd

General

Target
2026-10-02_0d47531ee1e581d210d17e8cf05e0620_elex_wannacry.exe
Size 91KB
Sample261003-v4ky4aed99
SHA256 7134474dadc2341015d695627af1925e9d01cfcf43a297c7a5299cba101ad3cd
MD5 0d47531ee1e581d210d17e8cf05e0620
SHA1 703a479b8e0133a1731abc8cdf92aa3b890a1621
SHA512 63ae43e68428bb363159c1ab88aa85867641bd9d5e57d802930acb7681b568ea1b9a10eb9e8f38a4a41b03bbe4ed6b1966586f76e312b0177bbba1be1834d9a6
SSDEEP 1536:TSSABNx6vb4RoI47zzzzzzzzzvfxzVzNrzzzgzzzzzzzzzzzzzzzz6zzzdzzzzlJ:eSABNx6vb4RoI4pyjHYLhal01UoPXF
TLSH
T13E939E17ABB588D9E0206C70161D773497EE986F3B1497A38348FE4EE533D85EC3618A
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
1896	bvyht.exe

Executes dropped EXE 1 IoCs

pid	Process
1896	bvyht.exe

Loads dropped DLL 1 IoCs

pid	Process
2804	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
5844	cmd.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2800	2804	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	2026-10-02_0d47531ee1e581d210d17e8cf05e0620_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	bvyht.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
5844	cmd.exe
2980	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2980	PING.EXE

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1380	2026-10-02_0d47531ee1e581d210d17e8cf05e0620_elex_wannacry.exe
1896	bvyht.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1380 wrote to memory of 5844	1380	2026-10-02_0d47531ee1e581d210d17e8cf05e0620_elex_wannacry.exe	89
PID 5844 wrote to memory of 2980	5844	cmd.exe	91
PID 5844 wrote to memory of 1896	5844	cmd.exe	92
PID 1896 wrote to memory of 2804	1896	bvyht.exe	93

C:\Users\Admin\AppData\Local\Temp\2026-10-02_0d47531ee1e581d210d17e8cf05e0620_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-10-02_0d47531ee1e581d210d17e8cf05e0620_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1380
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&c:\bvyht.exe "C:\Users\Admin\AppData\Local\Temp\2026-10-02_0d47531ee1e581d210d17e8cf05e0620_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:5844
- - 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:2980
- - \??\c:\bvyht.exe
    c:\bvyht.exe "C:\Users\Admin\AppData\Local\Temp\2026-10-02_0d47531ee1e581d210d17e8cf05e0620_elex_wannacry.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:1896
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\nwmtc\odvva.dll",DoVirusScan c:\bvyht.exe
      4⤵
      Loads dropped DLL
      System Location Discovery: System Language Discovery
      PID:2804
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 2804 -s 476
        5⤵
        Program crash
        
        PID:2800

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2804 -ip 2804
1⤵
PID:1532

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

Indicator Removal

1

T1070

File Deletion

1

T1070.004

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

bvyht.exe

Path \??\c:\bvyht.exe
Size 92KB
SHA256 46292cb8ea5018a4b331a0e657dc2c151cb8c6d2124569336daa163e0453d40d
MD5 271a77bde93e672b58c30bdddd595104
SHA1 127921db02e54a54140466b51ea409ae93ed509f
SHA512 e59c1414900a46be4c1a32ac55de158ac4128730c5c3115c7f316baba8f3750bd772e1e12e8408c128b96277e84291a966cd6213ab82e1fd376de1a1653d4bcb
SSDEEP 1536:TSSABNx6vb4RoI47zzzzzzzzzvfxzVzNrzzzgzzzzzzzzzzzzzzzz6zzzdzzzzl5:eSABNx6vb4RoI4pyjHYLhal01UoPXF
TLSH
T147939E17ABB588D9E0206C70161D773497EE986F3B14A7638348FE4EE533D85EC3618A
MD5 SHA1 SHA512 SSDEEP TLSH

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odvva.dll

Path \??\c:\nwmtc\odvva.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

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memory/1380-0-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/1380-2-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/1896-6-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/2804-9-0x0000000010000000-0x0000000010032000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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