8437a4c226a45848b3af9d70b95175621726845e7d832a85d174e486c11d5e02

General

Target
2026-08-08_0628cbddc0f3cbe47af842b1c4165bec_elex_wannacry.exe
Size 86KB
Sample260808-m2rd4adr8z
SHA256 8437a4c226a45848b3af9d70b95175621726845e7d832a85d174e486c11d5e02
MD5 0628cbddc0f3cbe47af842b1c4165bec
SHA1 1125ab624d0d865d39cbb4998ec0502bda78e0bc
SHA512 78dbe53b496eff231c3435c44ea2eb63230383d9d530dc39a38fb5fafe01723e91dc2d00478a3a5288a7871605d081b1dcb1f3cfd79260b763eb1060db425e09
SSDEEP 1536:TSSABNx6vb4RoI47zzzzzzzzzvfxzVzNrzzzgzzzzzzzzzzzzzzzz6zzzdzzzzlJ:eSABNx6vb4RoI4pyjHYLhal01UoPXV
TLSH
T14C839C0BABA958E9E1206870152D373593EF986F3B2597A38384FE4D9133DC1EC3614E
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
3556	nzmflo.exe

Executes dropped EXE 1 IoCs

pid	Process
3556	nzmflo.exe

Loads dropped DLL 1 IoCs

pid	Process
4212	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
1096	cmd.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3584	4212	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	nzmflo.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-08-08_0628cbddc0f3cbe47af842b1c4165bec_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
1096	cmd.exe
3020	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
3020	PING.EXE

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
5012	2026-08-08_0628cbddc0f3cbe47af842b1c4165bec_elex_wannacry.exe
3556	nzmflo.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 5012 wrote to memory of 1096	5012	2026-08-08_0628cbddc0f3cbe47af842b1c4165bec_elex_wannacry.exe	89
PID 1096 wrote to memory of 3020	1096	cmd.exe	91
PID 1096 wrote to memory of 3556	1096	cmd.exe	92
PID 3556 wrote to memory of 4212	3556	nzmflo.exe	93

C:\Users\Admin\AppData\Local\Temp\2026-08-08_0628cbddc0f3cbe47af842b1c4165bec_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-08_0628cbddc0f3cbe47af842b1c4165bec_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5012
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&c:\nzmflo.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-08_0628cbddc0f3cbe47af842b1c4165bec_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:1096
- - 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:3020
- - \??\c:\nzmflo.exe
    c:\nzmflo.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-08_0628cbddc0f3cbe47af842b1c4165bec_elex_wannacry.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:3556
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\ojojw\rnxyebeob.dll",DoVirusScan c:\nzmflo.exe
      4⤵
      Loads dropped DLL
      System Location Discovery: System Language Discovery
      PID:4212
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 4212 -s 476
        5⤵
        Program crash
        
        PID:3584

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4212 -ip 4212
1⤵
PID:3568

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

nzmflo.exe

Path \??\c:\nzmflo.exe
Size 86KB
SHA256 9c06c547a287d6730785b1f7e97c9d695da8ca25c7391398c30a4be454869d9b
MD5 56c24f64bedb372b3b79f13c8eca172b
SHA1 3018d5616d225604fb45aaac1de175b988b9f63c
SHA512 8c944e77b7794f4c4ec910cf85ad560bf1b46e6b2a97f777573c5b60737730064cf82640644678aeebc0ead5afd5b9babf43a3f2c484be632c8b0fc947add872
SSDEEP 1536:TSSABNx6vb4RoI47zzzzzzzzzvfxzVzNrzzzgzzzzzzzzzzzzzzzz6zzzdzzzzly:eSABNx6vb4RoI4pyjHYLhal01UoPX2
TLSH
T1F2839C0BABA958E9E1206870152D373593EF986F3B2597A38384FE4D9133DC1EC3614E
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

rnxyebeob.dll

Path \??\c:\ojojw\rnxyebeob.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

Submit Download

memory/3556-6-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/4212-9-0x0000000010000000-0x0000000010032000-memory.dmp

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memory/5012-0-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/5012-2-0x0000000000400000-0x0000000000417000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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