79841094bef4c0d52dcc61f8827d361581682a0395788d9f0f0a3491ce536f34

General

Target
2026-08-23_fed3ba34937684d6a9c441dcefd4f60f_elex_wannacry.exe
Size 97KB
Sample260823-rexd2sae23
SHA256 79841094bef4c0d52dcc61f8827d361581682a0395788d9f0f0a3491ce536f34
MD5 fed3ba34937684d6a9c441dcefd4f60f
SHA1 302a7376464f12d7eee3008d086e09dfe90fc943
SHA512 12b3c5c071f18c3f05b0716b1759851c5251b7d0e5d5a2bb291f2089b2e8fe2c5e4ee2dd65085a660172dbe6666c6e681a3ac0df3ecdef911186d336cf2507f1
SSDEEP 1536:VSSABNx6vb4RoI47zzzzzzzzzvfxzVzNrzzzgzzzzzzzzzzzzzzzz6zzzdzzzzlq:QSABNx6vb4RoI4pyjHYLhal01UoPX+
TLSH
T177A3AE0BAFAA48D9E120AD71152E377597EF946E3B1897938348FE4D9433CC1EC3614A
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2716	gswsdfu.exe

Executes dropped EXE 1 IoCs

pid	Process
2716	gswsdfu.exe

Loads dropped DLL 1 IoCs

pid	Process
4408	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
3640	cmd.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3964	4408	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	2026-08-23_fed3ba34937684d6a9c441dcefd4f60f_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	gswsdfu.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
692	PING.EXE
3640	cmd.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
692	PING.EXE

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2496	2026-08-23_fed3ba34937684d6a9c441dcefd4f60f_elex_wannacry.exe
2716	gswsdfu.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2496 wrote to memory of 3640	2496	2026-08-23_fed3ba34937684d6a9c441dcefd4f60f_elex_wannacry.exe	89
PID 3640 wrote to memory of 692	3640	cmd.exe	91
PID 3640 wrote to memory of 2716	3640	cmd.exe	92
PID 2716 wrote to memory of 4408	2716	gswsdfu.exe	93

C:\Users\Admin\AppData\Local\Temp\2026-08-23_fed3ba34937684d6a9c441dcefd4f60f_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-23_fed3ba34937684d6a9c441dcefd4f60f_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2496
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&c:\gswsdfu.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-23_fed3ba34937684d6a9c441dcefd4f60f_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:3640
- - 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:692
- - \??\c:\gswsdfu.exe
    c:\gswsdfu.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-23_fed3ba34937684d6a9c441dcefd4f60f_elex_wannacry.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2716
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\fuxgy\safwj.dll",DoVirusScan c:\gswsdfu.exe
      4⤵
      Loads dropped DLL
      System Location Discovery: System Language Discovery
      PID:4408
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 4408 -s 476
        5⤵
        Program crash
        
        PID:3964

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 4408 -ip 4408
1⤵
PID:3360

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

safwj.dll

Path \??\c:\fuxgy\safwj.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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gswsdfu.exe

Path \??\c:\gswsdfu.exe
Size 97KB
SHA256 9f196dbae719477bd0fc93f13cd0f7d0f8e27a99205149ad1db0764aee0033b9
MD5 117f7464c836e4e65e2c2c30e65afe9f
SHA1 41206cae8e5b2e93d921c544c5eb129ffbceb9a9
SHA512 b1379438b95d691a38cea937fe145256f9b5d2552a1740e433c24189a5c93eb111c9367a1bf199448045dfdbf5196d43ce75c0a4299d007240f96bfb7cda6abf
SSDEEP 1536:VSSABNx6vb4RoI47zzzzzzzzzvfxzVzNrzzzgzzzzzzzzzzzzzzzz6zzzdzzzzlm:QSABNx6vb4RoI4pyjHYLhal01UoPXa
TLSH
T12DA3AE0BAFAA48D9E1207D70152D377597EF846E3B1897978348EE4E9433CD1EC3618A
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/2496-0-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/2496-2-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/2716-6-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/4408-9-0x0000000010000000-0x0000000010032000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads