250638d61097a5e88467e7325dd6302e8c7b851185e8f97ff8b5fba46d025233

General

Target
2026-08-08_e90729054aa73104dd2b3d2c47439f25_elex_wannacry.exe
Size 85KB
Sample260808-klrc2sck41
SHA256 250638d61097a5e88467e7325dd6302e8c7b851185e8f97ff8b5fba46d025233
MD5 e90729054aa73104dd2b3d2c47439f25
SHA1 47cf70e352d9f1100af5f115a083d223b6313f2d
SHA512 fef1a16857856d83968673453770575c712a926492f54f2e53785acdec552c5ee7bdf77eac80c7e8ec815da3b7c0cf9e33d9be6f92dc4d05f0352e69835c6297
SSDEEP 1536:TSSABNx6vb4RoI47zzzzzzzzzvfxzVzNrzzzgzzzzzzzzzzzzzzzz6zzzdzzzzly:eSABNx6vb4RoI4pyjHYLhal01UoPX2
TLSH
T1CD839D0BABAA58D9E120AD70152D377593EF94AE3B2597A38344FE4D9533CC0EC3614A
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
3788	illfp.exe

Executes dropped EXE 1 IoCs

pid	Process
3788	illfp.exe

Loads dropped DLL 1 IoCs

pid	Process
1196	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
4896	cmd.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4348	1196	WerFault.exe	88

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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	illfp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-08-08_e90729054aa73104dd2b3d2c47439f25_elex_wannacry.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
4896	cmd.exe
4208	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4208	PING.EXE

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1104	2026-08-08_e90729054aa73104dd2b3d2c47439f25_elex_wannacry.exe
3788	illfp.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1104 wrote to memory of 4896	1104	2026-08-08_e90729054aa73104dd2b3d2c47439f25_elex_wannacry.exe	84
PID 4896 wrote to memory of 4208	4896	cmd.exe	86
PID 4896 wrote to memory of 3788	4896	cmd.exe	87
PID 3788 wrote to memory of 1196	3788	illfp.exe	88

C:\Users\Admin\AppData\Local\Temp\2026-08-08_e90729054aa73104dd2b3d2c47439f25_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-08_e90729054aa73104dd2b3d2c47439f25_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1104
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&c:\illfp.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-08_e90729054aa73104dd2b3d2c47439f25_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:4896
- - 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:4208
- - \??\c:\illfp.exe
    c:\illfp.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-08_e90729054aa73104dd2b3d2c47439f25_elex_wannacry.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:3788
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\tttnwnos\cdwpe.dll",DoVirusScan c:\illfp.exe
      4⤵
      Loads dropped DLL
      System Location Discovery: System Language Discovery
      PID:1196
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 1196 -s 560
        5⤵
        Program crash
        
        PID:4348

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 1196 -ip 1196
1⤵
PID:3052

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

illfp.exe

Path C:\illfp.exe
Size 86KB
SHA256 9c1540a62ab0b10ce1ea3b0b6edf6d4555a3dbbad85f2ee5054602f11d74cf9f
MD5 ad6ab4cdfda811d08ef21c30701e6a32
SHA1 eab4731ab3f30bee01be420644ed574ff480ed04
SHA512 8e83289d51cd201671a004a426bbeec0303123867b1d7583b2c0d8001578b83aa2fd43d1631a2933f05d80b2247084f5a19fc14b93e851bb4c417b289ca209af
SSDEEP 1536:TSSABNx6vb4RoI47zzzzzzzzzvfxzVzNrzzzgzzzzzzzzzzzzzzzz6zzzdzzzzlG:eSABNx6vb4RoI4pyjHYLhal01UoPXa
TLSH
T11A839D0BABAA58D9E120AD70152D377593EF946E3B2597A38344FE4D9533CC0EC3614A
MD5 SHA1 SHA512 SSDEEP TLSH

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cdwpe.dll

Path \??\c:\tttnwnos\cdwpe.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/1104-0-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/1104-2-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/1196-10-0x0000000010000000-0x0000000010032000-memory.dmp

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memory/3788-7-0x0000000000400000-0x0000000000417000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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