f4ade38d5da09b945eb1797b6cea5426a82ce112d2b37815b1d4b10310846828

General

Target
2026-08-10_91e6e529334631ccdf190a6a57977d7d_elex_wannacry.exe
Size 86KB
Sample260810-e1b9saar6w
SHA256 f4ade38d5da09b945eb1797b6cea5426a82ce112d2b37815b1d4b10310846828
MD5 91e6e529334631ccdf190a6a57977d7d
SHA1 00fc87aaba150dda140819e2098bd90a804c1acd
SHA512 30ee1f79a6c53adf3885cf44646ce88c1082c1302e807169b2d249aeda813398cd1724b82fe0283038f4a1876f10567c7414c6940a7cb66cf8ee952006b4018a
SSDEEP 1536:TSSABNx6vb4RoI47zzzzzzzzzvfxzVzNrzzzgzzzzzzzzzzzzzzzz6zzzdzzzzl/:eSABNx6vb4RoI4pyjHYLhal01UoPXr
TLSH
T164839D0BABAA58E9E1206C70152D377597EF94AB3B2597A38344FE4D9133CC1EC3614E
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
4108	gxmjjm.exe

Executes dropped EXE 1 IoCs

pid	Process
4108	gxmjjm.exe

Loads dropped DLL 1 IoCs

pid	Process
4300	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
816	cmd.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4016	4300	WerFault.exe	91

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	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	gxmjjm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-08-10_91e6e529334631ccdf190a6a57977d7d_elex_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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
816	cmd.exe
1772	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
1772	PING.EXE

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1396	2026-08-10_91e6e529334631ccdf190a6a57977d7d_elex_wannacry.exe
4108	gxmjjm.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1396 wrote to memory of 816	1396	2026-08-10_91e6e529334631ccdf190a6a57977d7d_elex_wannacry.exe	87
PID 816 wrote to memory of 1772	816	cmd.exe	89
PID 816 wrote to memory of 4108	816	cmd.exe	90
PID 4108 wrote to memory of 4300	4108	gxmjjm.exe	91

C:\Users\Admin\AppData\Local\Temp\2026-08-10_91e6e529334631ccdf190a6a57977d7d_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-10_91e6e529334631ccdf190a6a57977d7d_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1396
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&c:\gxmjjm.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-10_91e6e529334631ccdf190a6a57977d7d_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:816
- - 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:1772
- - \??\c:\gxmjjm.exe
    c:\gxmjjm.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-10_91e6e529334631ccdf190a6a57977d7d_elex_wannacry.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:4108
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\wgvgm\yctkutag.dll",DoVirusScan c:\gxmjjm.exe
      4⤵
      Loads dropped DLL
      System Location Discovery: System Language Discovery
      PID:4300
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 4300 -s 560
        5⤵
        Program crash
        
        PID:4016

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4300 -ip 4300
1⤵
PID:5092

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

gxmjjm.exe

Path C:\gxmjjm.exe
Size 86KB
SHA256 25d7258896e03b73dbcbd5c521df6e0802b43fa2c4d96abdd59a3bb0bc80dbf1
MD5 dac668ecb67de2da5a3b29cf43f5a57f
SHA1 2f07351693435af3164bc7266cfe47cfc999e0a2
SHA512 667541a413a7db4fddd6c7f055d5a7eee9a1ad73449791a4fc54e6eceeb75c5453cd05cdeb3fa73421a79bf58c55de0758035b199d88405b996d057798933b2e
SSDEEP 1536:TSSABNx6vb4RoI47zzzzzzzzzvfxzVzNrzzzgzzzzzzzzzzzzzzzz6zzzdzzzzlW:eSABNx6vb4RoI4pyjHYLhal01UoPXK
TLSH
T1CC939D0BABAA58E9E1206C70052D377597EF94AB3B2597A38344FE4D9133DC1EC3614E
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

yctkutag.dll

Path \??\c:\wgvgm\yctkutag.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/1396-0-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/1396-2-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/4108-7-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/4300-10-0x0000000010000000-0x0000000010032000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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