ab577fc98de1f7fb4afa21f58ffc4c9e3ad1e93274a1a7fccd5b500ee32fa49f

General

Target
2026-10-25_7f14516b8f97e785eea974cc0b6e163d_elex_wannacry.exe
Size 85KB
Sample261026-2c2abswz2n
SHA256 ab577fc98de1f7fb4afa21f58ffc4c9e3ad1e93274a1a7fccd5b500ee32fa49f
MD5 7f14516b8f97e785eea974cc0b6e163d
SHA1 0085a9b0a13472b8e1315b821855e85fd0a7dd12
SHA512 ea9cfa18a929587b88325b19c9a74200ad280c5b182d86ec64b49bc4e40b1862cac1d804aefbca92b9b84e3d0315041e1b84e3aed67534fa200f19cf3ef604b3
SSDEEP 1536:TSSABNx6vb4RoI47zzzzzzzzzvfxzVzNrzzzgzzzzzzzzzzzzzzzz6zzzdzzzzlQ:eSABNx6vb4RoI4pyjHYLhal01UoPX
TLSH
T13E839D0BABAA48D9E2206C71152E3774D3FF946E3B149B939348EE4D9533CC5EC3614A
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

defense_evasion discovery execution

Malware Config

Signatures

Deletes itself 1 TTPs 1 IoCs

defense_evasion

File Deletion

T1070.004

pid	Process
4344	iyunx.exe

Executes dropped EXE 1 IoCs

pid	Process
4344	iyunx.exe

Loads dropped DLL 1 IoCs

pid	Process
3612	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
5452	cmd.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
5308	3612	WerFault.exe	94

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	2026-10-25_7f14516b8f97e785eea974cc0b6e163d_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	iyunx.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
5452	cmd.exe
3760	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
3760	PING.EXE

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4612	2026-10-25_7f14516b8f97e785eea974cc0b6e163d_elex_wannacry.exe
4344	iyunx.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4612 wrote to memory of 5452	4612	2026-10-25_7f14516b8f97e785eea974cc0b6e163d_elex_wannacry.exe	90
PID 5452 wrote to memory of 3760	5452	cmd.exe	92
PID 5452 wrote to memory of 4344	5452	cmd.exe	93
PID 4344 wrote to memory of 3612	4344	iyunx.exe	94

C:\Users\Admin\AppData\Local\Temp\2026-10-25_7f14516b8f97e785eea974cc0b6e163d_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-10-25_7f14516b8f97e785eea974cc0b6e163d_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4612
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&c:\iyunx.exe "C:\Users\Admin\AppData\Local\Temp\2026-10-25_7f14516b8f97e785eea974cc0b6e163d_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:5452
- - 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:3760
- - \??\c:\iyunx.exe
    c:\iyunx.exe "C:\Users\Admin\AppData\Local\Temp\2026-10-25_7f14516b8f97e785eea974cc0b6e163d_elex_wannacry.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:4344
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\hfwvk\yuodm.dll",DoVirusScan c:\iyunx.exe
      4⤵
      Loads dropped DLL
      System Location Discovery: System Language Discovery
      PID:3612
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 3612 -s 512
        5⤵
        Program crash
        
        PID:5308

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3612 -ip 3612
1⤵
PID:4104

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

Indicator Removal

1

T1070

File Deletion

1

T1070.004

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

Replay Monitor

Loading Replay Monitor...

Downloads

yuodm.dll

Path \??\c:\hfwvk\yuodm.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

iyunx.exe

Path \??\c:\iyunx.exe
Size 85KB
SHA256 3fca601764a16ed902e29308e8cf85007b4aefb9174bbef8e4bb10fc1c5b0758
MD5 90e209c0eb56504f82e6fa5372d426a9
SHA1 d5fb7987b964e022b8f1c20913804571e76f7705
SHA512 0a1f0ae45e437fa712a63876a4982b145faf67da8d60403bdf3dd431d7f1fc298ebf0c5cbd5e1f33b0bee98c916eeafc4f7f9f7f4dcf8fbe07ecffba69eb36c9
SSDEEP 1536:TSSABNx6vb4RoI47zzzzzzzzzvfxzVzNrzzzgzzzzzzzzzzzzzzzz6zzzdzzzzlq:eSABNx6vb4RoI4pyjHYLhal01UoPXm
TLSH
T16B83AD0BAFAA48D9E1206C71152E3774D3EF946E3B189B939348EE4D9533CC5EC3614A
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/3612-9-0x0000000010000000-0x0000000010032000-memory.dmp

Download

memory/4344-6-0x0000000000400000-0x0000000000417000-memory.dmp

Download

memory/4612-0-0x0000000000400000-0x0000000000417000-memory.dmp

Download

memory/4612-2-0x0000000000400000-0x0000000000417000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

Replay Monitor

Loading Replay Monitor...

Downloads