581ba2cd460913c1692dc46a6eac28927b6c8e8d7c5737573ba8a70817fdc3c9

General

Target
2026-08-09_8c06a3cef8972819086e8c4666d4bb99_elex_wannacry.exe
Size 87KB
Sample260809-3wdttafn4y
SHA256 581ba2cd460913c1692dc46a6eac28927b6c8e8d7c5737573ba8a70817fdc3c9
MD5 8c06a3cef8972819086e8c4666d4bb99
SHA1 767bbb6f0fea01e88b1d6f10b3a2ad8a92381914
SHA512 4c48d1492112158f8e5165793c0cc2fc393c2acc65100b1518454a62f7da993550a65f9e00d8aa24e6a5a0ac600a9593a4e6713f67fa93a217c03c5810c74632
SSDEEP 1536:TSSABNx6vb4RoI47zzzzzzzzzvfxzVzNrzzzgzzzzzzzzzzzzzzzz6zzzdzzzzlO:eSABNx6vb4RoI4pyjHYLhal01UoPXK
TLSH
T149939C47ABA598E5E0206C70061D273593EF986F3B2597A38384FE4DA133DC1EC3618E
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2688	hyfpe.exe

Executes dropped EXE 1 IoCs

pid	Process
2688	hyfpe.exe

Loads dropped DLL 1 IoCs

pid	Process
4244	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
4152	cmd.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3744	4244	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	hyfpe.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-08-09_8c06a3cef8972819086e8c4666d4bb99_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
4152	cmd.exe
4640	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4640	PING.EXE

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
5660	2026-08-09_8c06a3cef8972819086e8c4666d4bb99_elex_wannacry.exe
2688	hyfpe.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 5660 wrote to memory of 4152	5660	2026-08-09_8c06a3cef8972819086e8c4666d4bb99_elex_wannacry.exe	89
PID 4152 wrote to memory of 4640	4152	cmd.exe	91
PID 4152 wrote to memory of 2688	4152	cmd.exe	92
PID 2688 wrote to memory of 4244	2688	hyfpe.exe	93

C:\Users\Admin\AppData\Local\Temp\2026-08-09_8c06a3cef8972819086e8c4666d4bb99_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-09_8c06a3cef8972819086e8c4666d4bb99_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5660
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&c:\hyfpe.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-09_8c06a3cef8972819086e8c4666d4bb99_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:4152
- - 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:4640
- - \??\c:\hyfpe.exe
    c:\hyfpe.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-09_8c06a3cef8972819086e8c4666d4bb99_elex_wannacry.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2688
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\obscpw\swids.dll",DoVirusScan c:\hyfpe.exe
      4⤵
      Loads dropped DLL
      System Location Discovery: System Language Discovery
      PID:4244
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 4244 -s 476
        5⤵
        Program crash
        
        PID:3744

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 4244 -ip 4244
1⤵
PID:1688

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

hyfpe.exe

Path \??\c:\hyfpe.exe
Size 87KB
SHA256 ef806fa6d122fbacdd3475a0bef711841ad1cfd1f6e0a672fe4025806cf0d433
MD5 e6ce2b381ed3325d843e42b1f9b0e842
SHA1 7ca1c72d373a1409af940d9b5c258a948b6300d6
SHA512 6070c1a426692775a975a2258be09838a742db22d3625bccbd7fcc7142203b72219a43ecaef9748af6a2c2628c4551eb0ec7d07a1d04566d46ab48e54fe83784
SSDEEP 1536:TSSABNx6vb4RoI47zzzzzzzzzvfxzVzNrzzzgzzzzzzzzzzzzzzzz6zzzdzzzzlE:eSABNx6vb4RoI4pyjHYLhal01UoPXI
TLSH
T10E939D07ABA598E5E0206C70161D373597EE986F3B2497A38384FE4E9533DD1EC3618E
MD5 SHA1 SHA512 SSDEEP TLSH

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swids.dll

Path \??\c:\obscpw\swids.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/2688-6-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/4244-9-0x0000000010000000-0x0000000010032000-memory.dmp

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memory/5660-0-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/5660-2-0x0000000000400000-0x0000000000417000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads