38f963b22b58487b09e6306d138172bdb133bd4b5747393c48551f45e21b0893

General

Target
2026-08-20_2aef1684a12cbc43e60f82a3d5f63082_elex_wannacry.exe
Size 89KB
Sample260820-dpmqpsdr3x
SHA256 38f963b22b58487b09e6306d138172bdb133bd4b5747393c48551f45e21b0893
MD5 2aef1684a12cbc43e60f82a3d5f63082
SHA1 05e782b81308f9c9532b7a1fb37d7abb209ca439
SHA512 b4d16a3db04cf988a9f287d5ffe6f00ad076048ecc9486b5286e6872b407f8200badf6af76a9298e428161e98f390f48d089dffb3e0627d68056086634609cf6
SSDEEP 1536:TSSABNx6vb4RoI47zzzzzzzzzvfxzVzNrzzzgzzzzzzzzzzzzzzzz6zzzdzzzzlN:eSABNx6vb4RoI4pyjHYLhal01UoPXB
TLSH
T1E4939D47ABA558E8E1206C70161D373597EF98AB3B2597A38384FE4DA133DC1EC3614E
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
808	mhtcyfqbw.exe

Executes dropped EXE 1 IoCs

pid	Process
808	mhtcyfqbw.exe

Loads dropped DLL 1 IoCs

pid	Process
4652	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
4920	cmd.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
5860	4652	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	2026-08-20_2aef1684a12cbc43e60f82a3d5f63082_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	mhtcyfqbw.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
4920	cmd.exe
1328	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
1328	PING.EXE

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4632	2026-08-20_2aef1684a12cbc43e60f82a3d5f63082_elex_wannacry.exe
808	mhtcyfqbw.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4632 wrote to memory of 4920	4632	2026-08-20_2aef1684a12cbc43e60f82a3d5f63082_elex_wannacry.exe	89
PID 4920 wrote to memory of 1328	4920	cmd.exe	91
PID 4920 wrote to memory of 808	4920	cmd.exe	92
PID 808 wrote to memory of 4652	808	mhtcyfqbw.exe	93

C:\Users\Admin\AppData\Local\Temp\2026-08-20_2aef1684a12cbc43e60f82a3d5f63082_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-20_2aef1684a12cbc43e60f82a3d5f63082_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4632
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&c:\mhtcyfqbw.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-20_2aef1684a12cbc43e60f82a3d5f63082_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:4920
- - 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:1328
- - \??\c:\mhtcyfqbw.exe
    c:\mhtcyfqbw.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-20_2aef1684a12cbc43e60f82a3d5f63082_elex_wannacry.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:808
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\spfji\pvslh.dll",DoVirusScan c:\mhtcyfqbw.exe
      4⤵
      Loads dropped DLL
      System Location Discovery: System Language Discovery
      PID:4652
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 4652 -s 476
        5⤵
        Program crash
        
        PID:5860

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 392 -p 4652 -ip 4652
1⤵
PID:3216

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

mhtcyfqbw.exe

Path \??\c:\mhtcyfqbw.exe
Size 89KB
SHA256 1672dcf1b7828135e9b57184d936e05ef2354c9834646015baf591266b82e1d9
MD5 7ea9d110075a0be6ab4cf8720936d686
SHA1 cb55c9da7076aff012936c0fe7927e50a18f9c53
SHA512 032dc6ee433e4e2b1bbdb2d803096c09ab9f2654a051b603f2bc22d060ab60411c37a7c097968e221a4f8557759d195abd1112c873de5f17b81d71445f89007c
SSDEEP 1536:TSSABNx6vb4RoI47zzzzzzzzzvfxzVzNrzzzgzzzzzzzzzzzzzzzz6zzzdzzzzl+:eSABNx6vb4RoI4pyjHYLhal01UoPXC
TLSH
T16F938D07ABA558E9E1206C70161D373597EE986B3B2597A38384FE4EA133DC1EC3614E
MD5 SHA1 SHA512 SSDEEP TLSH

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pvslh.dll

Path \??\c:\spfji\pvslh.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/808-6-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/4632-0-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/4632-2-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/4652-9-0x0000000010000000-0x0000000010032000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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