4568704b830c021ce8fd7695cd7ac6ab4e1284f80ced31055e2f8dcaed232526

General

Target
2026-08-18_bab92bc890c5db78367f33e3786b8e08_elex_wannacry.exe
Size 89KB
Sample260818-23ffjstyfx
SHA256 4568704b830c021ce8fd7695cd7ac6ab4e1284f80ced31055e2f8dcaed232526
MD5 bab92bc890c5db78367f33e3786b8e08
SHA1 b4afffde60a1e4ddb49acb08d61d464f54a0fee8
SHA512 62a2d817961d78c159b48ec49636c31bb885dac1a480ebfdc39571a57e3d4e2a14e855794654dcfefe8c888f9e3b87d7ba1963303e2a0a8d6aef300b1b4c328e
SSDEEP 1536:TSSABNx6vb4RoI47zzzzzzzzzvfxzVzNrzzzgzzzzzzzzzzzzzzzz6zzzdzzzzl5:eSABNx6vb4RoI4pyjHYLhal01UoPXF
TLSH
T128938D47ABB598E4E0206870161D673597EED86F3B2597A38384FE4DA133EC1EC3614E
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2032	nolln.exe

Executes dropped EXE 1 IoCs

pid	Process
2032	nolln.exe

Loads dropped DLL 1 IoCs

pid	Process
4404	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
4264	cmd.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1588	4404	WerFault.exe	89

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	2026-08-18_bab92bc890c5db78367f33e3786b8e08_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	nolln.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
4264	cmd.exe
1668	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
1668	PING.EXE

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
820	2026-08-18_bab92bc890c5db78367f33e3786b8e08_elex_wannacry.exe
2032	nolln.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 820 wrote to memory of 4264	820	2026-08-18_bab92bc890c5db78367f33e3786b8e08_elex_wannacry.exe	85
PID 4264 wrote to memory of 1668	4264	cmd.exe	87
PID 4264 wrote to memory of 2032	4264	cmd.exe	88
PID 2032 wrote to memory of 4404	2032	nolln.exe	89

C:\Users\Admin\AppData\Local\Temp\2026-08-18_bab92bc890c5db78367f33e3786b8e08_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-18_bab92bc890c5db78367f33e3786b8e08_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:820
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&c:\nolln.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-18_bab92bc890c5db78367f33e3786b8e08_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:4264
- - 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:1668
- - \??\c:\nolln.exe
    c:\nolln.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-18_bab92bc890c5db78367f33e3786b8e08_elex_wannacry.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2032
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\awysmhmhe\bskeu.dll",DoVirusScan c:\nolln.exe
      4⤵
      Loads dropped DLL
      System Location Discovery: System Language Discovery
      PID:4404
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 4404 -s 564
        5⤵
        Program crash
        
        PID:1588

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 4404 -ip 4404
1⤵
PID:3852

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

nolln.exe

Path C:\nolln.exe
Size 89KB
SHA256 4045f18529a383266c334650a5e02fcbfac59cb5fb39b9542282c05b9f8526ca
MD5 27e41e19025f3cac412b30df7750b0f8
SHA1 08270d2ca727da789d9bd8e5afaba8d235030e4d
SHA512 61468412f35e2a5b6018067d336017ad13fbb9c1a0eb264340e263ec66ec1c4e091465f1b7a1fcc25ec7bd0eb6f5df5b22da6f7c7be991f7abc77d8b6c92d2e7
SSDEEP 1536:TSSABNx6vb4RoI47zzzzzzzzzvfxzVzNrzzzgzzzzzzzzzzzzzzzz6zzzdzzzzlq:eSABNx6vb4RoI4pyjHYLhal01UoPXu
TLSH
T153938D47AB7598E4E0206870161D673597EED86F3B2557A38384FE4E9133EC1EC3618E
MD5 SHA1 SHA512 SSDEEP TLSH

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bskeu.dll

Path \??\c:\awysmhmhe\bskeu.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/820-0-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/820-2-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/2032-7-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/4404-10-0x0000000010000000-0x0000000010032000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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