ef832f9cb9380d75d043050d3113975a8195f698c92e9d56363bf83f71b73251

General

Target
2026-10-25_7ca4cfb56c934ffcba66f6fe23e011dd_elex_wannacry.exe
Size 90KB
Sample261026-2qdfescb54
SHA256 ef832f9cb9380d75d043050d3113975a8195f698c92e9d56363bf83f71b73251
MD5 7ca4cfb56c934ffcba66f6fe23e011dd
SHA1 c1c89a8e4e0bc84de886483e36fe3ac9fd5d5cc1
SHA512 dc09982524fd3db599534b590b28fce40bbf720bd6ca575d0e0587bf670971fb13ea76e55113b506edd6a458c13ea6d1d9f6592496f1104d17174e727cac4e31
SSDEEP 1536:TSSABNx6vb4RoI47zzzzzzzzzvfxzVzNrzzzgzzzzzzzzzzzzzzzz6zzzdzzzzli:eSABNx6vb4RoI4pyjHYLhal01UoPX2
TLSH
T15E938D47ABA598E5E0206C70161D773083EED86F3B1497A38384FE4EE173D95EC3618A
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
4248	ymgcwka.exe

Executes dropped EXE 1 IoCs

pid	Process
4248	ymgcwka.exe

Loads dropped DLL 1 IoCs

pid	Process
1040	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
1716	cmd.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3776	1040	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	ymgcwka.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-10-25_7ca4cfb56c934ffcba66f6fe23e011dd_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

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
1716	cmd.exe
3700	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
3700	PING.EXE

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2160	2026-10-25_7ca4cfb56c934ffcba66f6fe23e011dd_elex_wannacry.exe
4248	ymgcwka.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2160 wrote to memory of 1716	2160	2026-10-25_7ca4cfb56c934ffcba66f6fe23e011dd_elex_wannacry.exe	89
PID 1716 wrote to memory of 3700	1716	cmd.exe	91
PID 1716 wrote to memory of 4248	1716	cmd.exe	92
PID 4248 wrote to memory of 1040	4248	ymgcwka.exe	93

C:\Users\Admin\AppData\Local\Temp\2026-10-25_7ca4cfb56c934ffcba66f6fe23e011dd_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-10-25_7ca4cfb56c934ffcba66f6fe23e011dd_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2160
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&c:\ymgcwka.exe "C:\Users\Admin\AppData\Local\Temp\2026-10-25_7ca4cfb56c934ffcba66f6fe23e011dd_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:1716
- - 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:3700
- - \??\c:\ymgcwka.exe
    c:\ymgcwka.exe "C:\Users\Admin\AppData\Local\Temp\2026-10-25_7ca4cfb56c934ffcba66f6fe23e011dd_elex_wannacry.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:4248
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\bwqgn\amwwrbwaf.dll",DoVirusScan c:\ymgcwka.exe
      4⤵
      Loads dropped DLL
      System Location Discovery: System Language Discovery
      PID:1040
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 1040 -s 484
        5⤵
        Program crash
        
        PID:3776

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 232 -p 1040 -ip 1040
1⤵
PID:1496

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

amwwrbwaf.dll

Path \??\c:\bwqgn\amwwrbwaf.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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ymgcwka.exe

Path \??\c:\ymgcwka.exe
Size 90KB
SHA256 4330af0a5ace0ab987dee99f6ba46062c0b59da606c60c0ac1ac0d88783c1812
MD5 7cedd12a821957cae24fc92b981ba181
SHA1 566b228798610ae4815bc69ab9cbb437694e9ff1
SHA512 5d71212b73dcc7053c118b6e9e93f7c91b085d813d6bcb4e87e9c7c8f85b3454bf141bf27b968dbcb456d8c80be0dccd164dbdbb44ca937e2182f61ffb7a873a
SSDEEP 1536:TSSABNx6vb4RoI47zzzzzzzzzvfxzVzNrzzzgzzzzzzzzzzzzzzzz6zzzdzzzzlD:eSABNx6vb4RoI4pyjHYLhal01UoPX3
TLSH
T12D938E47ABA598E5E0246C70161D773083EED86F3B1497A38384FE4EE173D95EC3618A
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/1040-9-0x0000000010000000-0x0000000010032000-memory.dmp

Download

memory/2160-0-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/2160-2-0x0000000000400000-0x0000000000417000-memory.dmp

Download

memory/4248-6-0x0000000000400000-0x0000000000417000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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