e2750f7266b0d17589cf05bd8ca79f5efe259bbb9e865743eeab7218558f2355

General

Target
2026-09-12_6383629da160fa6285e854d2f403d44b_elex_feodo_wannacry.exe
Size 95KB
Sample260913-azb56sch33
SHA256 e2750f7266b0d17589cf05bd8ca79f5efe259bbb9e865743eeab7218558f2355
MD5 6383629da160fa6285e854d2f403d44b
SHA1 94ad9f81968b5ac426fca911767c57c8d6154141
SHA512 fcee1db8b29ebd039262e1a82a5892be17b0fd2d4a4bcaf3b299f5f92f1b5cf5206302ef9d3907b6eba46d63171ee67ad28c7e43b626ada458ff88debb23f203
SSDEEP 1536:VSSABNx6vb4RoI47zzzzzzzzzvfxzVzNrzzzgzzzzzzzzzzzzzzzz6zzzdzzzzl0:QSABNx6vb4RoI4pyjHYLhal01UoPX
TLSH
T132A3AD0BABAA58D9E120AD71152D3B7597EF846E3B2597938348FE4D9433CC0EC3614A
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
4372	zrxet.exe

Executes dropped EXE 1 IoCs

pid	Process
4372	zrxet.exe

Loads dropped DLL 1 IoCs

pid	Process
5432	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
5496	cmd.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1444	5432	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	zrxet.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-09-12_6383629da160fa6285e854d2f403d44b_elex_feodo_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
5496	cmd.exe
5528	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
5528	PING.EXE

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
6036	2026-09-12_6383629da160fa6285e854d2f403d44b_elex_feodo_wannacry.exe
4372	zrxet.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 6036 wrote to memory of 5496	6036	2026-09-12_6383629da160fa6285e854d2f403d44b_elex_feodo_wannacry.exe	87
PID 5496 wrote to memory of 5528	5496	cmd.exe	89
PID 5496 wrote to memory of 4372	5496	cmd.exe	90
PID 4372 wrote to memory of 5432	4372	zrxet.exe	91

C:\Users\Admin\AppData\Local\Temp\2026-09-12_6383629da160fa6285e854d2f403d44b_elex_feodo_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-09-12_6383629da160fa6285e854d2f403d44b_elex_feodo_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:6036
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&c:\zrxet.exe "C:\Users\Admin\AppData\Local\Temp\2026-09-12_6383629da160fa6285e854d2f403d44b_elex_feodo_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:5496
- - 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:5528
- - \??\c:\zrxet.exe
    c:\zrxet.exe "C:\Users\Admin\AppData\Local\Temp\2026-09-12_6383629da160fa6285e854d2f403d44b_elex_feodo_wannacry.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:4372
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\yxyci\xluas.dll",DoVirusScan c:\zrxet.exe
      4⤵
      Loads dropped DLL
      System Location Discovery: System Language Discovery
      PID:5432
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 5432 -s 476
        5⤵
        Program crash
        
        PID:1444

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 5432 -ip 5432
1⤵
PID:4520

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

xluas.dll

Path \??\c:\yxyci\xluas.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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zrxet.exe

Path \??\c:\zrxet.exe
Size 96KB
SHA256 2561edea581bea408b7779e62eb2f90cd492ac2b55bcb5cc4b673f1007838f98
MD5 6ca8f1663f980953d2211e7c54d31fdb
SHA1 2cb69682cc37feb9dd6bac2b9fe13f7d834ba6b4
SHA512 5fd60c0a2f54fe70d74981813b0990ce448d2dffea1744736beb00fff88b6d3fc92b14e8045f0363147648ee6dd86d2f3fa0b337cbbc90f2ae4cd9e50efe8327
SSDEEP 1536:VSSABNx6vb4RoI47zzzzzzzzzvfxzVzNrzzzgzzzzzzzzzzzzzzzz6zzzdzzzzlX:QSABNx6vb4RoI4pyjHYLhal01UoPXT
TLSH
T1B6A3AE0BAFAA58D9E120AD70156D377597EF886E3B2497938348FE4D9433DC0EC3614A
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/4372-6-0x0000000000400000-0x0000000000417000-memory.dmp

Download

memory/5432-9-0x0000000010000000-0x0000000010032000-memory.dmp

Download

memory/6036-0-0x0000000000400000-0x0000000000417000-memory.dmp

Download

memory/6036-2-0x0000000000400000-0x0000000000417000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads