ea035e905db83fb173c851b1e773ec7a5bd462b0565cd0fb1990007fc52506d8

General

Target
2026-08-08_94694af3c67eb9367e31692a73bca0dc_elex_wannacry.exe
Size 91KB
Sample260808-mv4e3svfrd
SHA256 ea035e905db83fb173c851b1e773ec7a5bd462b0565cd0fb1990007fc52506d8
MD5 94694af3c67eb9367e31692a73bca0dc
SHA1 47031dfc9181038eacaeaaa0c960717ba75319b1
SHA512 6dc82068e424fc6af8d50d81ce12be4b92a4c17112ef04191b420c1b7d3ac763400c380902ceed5589ea955c5ac467966d1f6353b938fb32786d908b3daedff9
SSDEEP 1536:TSSABNx6vb4RoI47zzzzzzzzzvfxzVzNrzzzgzzzzzzzzzzzzzzzz6zzzdzzzzlM:eSABNx6vb4RoI4pyjHYLhal01UoPX
TLSH
T13C939E07ABA588D9E1207C70165D373497EE986E3B1897A39348EE4ED433DD1EC3618A
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
5444	ouofmdla.exe

Executes dropped EXE 1 IoCs

pid	Process
5444	ouofmdla.exe

Loads dropped DLL 1 IoCs

pid	Process
1564	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
3348	cmd.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3048	1564	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	2026-08-08_94694af3c67eb9367e31692a73bca0dc_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	ouofmdla.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
3348	cmd.exe
456	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
456	PING.EXE

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4304	2026-08-08_94694af3c67eb9367e31692a73bca0dc_elex_wannacry.exe
5444	ouofmdla.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4304 wrote to memory of 3348	4304	2026-08-08_94694af3c67eb9367e31692a73bca0dc_elex_wannacry.exe	89
PID 3348 wrote to memory of 456	3348	cmd.exe	91
PID 3348 wrote to memory of 5444	3348	cmd.exe	92
PID 5444 wrote to memory of 1564	5444	ouofmdla.exe	93

C:\Users\Admin\AppData\Local\Temp\2026-08-08_94694af3c67eb9367e31692a73bca0dc_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-08_94694af3c67eb9367e31692a73bca0dc_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4304
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&c:\ouofmdla.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-08_94694af3c67eb9367e31692a73bca0dc_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:3348
- - 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:456
- - \??\c:\ouofmdla.exe
    c:\ouofmdla.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-08_94694af3c67eb9367e31692a73bca0dc_elex_wannacry.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:5444
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\trayt\rczqx.dll",DoVirusScan c:\ouofmdla.exe
      4⤵
      Loads dropped DLL
      System Location Discovery: System Language Discovery
      PID:1564
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 1564 -s 484
        5⤵
        Program crash
        
        PID:3048

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 1564 -ip 1564
1⤵
PID:2932

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

ouofmdla.exe

Path \??\c:\ouofmdla.exe
Size 91KB
SHA256 83c00729cfe3a1bfffb0209a49dcaef6754794d6668771ff31acfdc29a91a835
MD5 272a2daa524fd4b11cc54ed215125975
SHA1 c8cfdf548d952465d042cfa047e6465f81d7cc34
SHA512 2a3eeafdc654230cb1be5c6e6c0f078bc41bb2d09dab7b417524fabced9a2c98da24b5614a0691b12335f35c7f29f92053ef7ad50ac3c20cfdd339b14264ba54
SSDEEP 1536:TSSABNx6vb4RoI47zzzzzzzzzvfxzVzNrzzzgzzzzzzzzzzzzzzzz6zzzdzzzzli:eSABNx6vb4RoI4pyjHYLhal01UoPXG
TLSH
T1D3939E07ABA588D9F1207C70161D373097EE986E3B1897A39348EE4ED473DD1EC3618A
MD5 SHA1 SHA512 SSDEEP TLSH

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rczqx.dll

Path \??\c:\trayt\rczqx.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/1564-9-0x0000000010000000-0x0000000010032000-memory.dmp

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memory/4304-0-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/4304-2-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/5444-6-0x0000000000400000-0x0000000000417000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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