8b7045549a58084c45ceebbf62e4ab1579cd3df4232087870cb9527c2c4a3b01

General

Target
2026-08-09_081a23e0dd9c04a66a2e2698b624928f_elex_wannacry.exe
Size 86KB
Sample260809-mf3j8swcmf
SHA256 8b7045549a58084c45ceebbf62e4ab1579cd3df4232087870cb9527c2c4a3b01
MD5 081a23e0dd9c04a66a2e2698b624928f
SHA1 fd20a2cc5bb46ce4f68c9d36f6ae50512dc5152c
SHA512 f90f13d892293eeb4945bf9aa373cbdc5e6265ca86320284a639e7d3ada9618a2451c9d402832e91de7b819f3980caefb25cfa825e438bec13bed23a5082b873
SSDEEP 1536:TSSABNx6vb4RoI47zzzzzzzzzvfxzVzNrzzzgzzzzzzzzzzzzzzzz6zzzdzzzzlK:eSABNx6vb4RoI4pyjHYLhal01UoPXm
TLSH
T11A938C07ABA958E9E1206C70162D373593EF986F3B2597A38384FE4D9533DC1EC3614A
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
988	wztuj.exe

Executes dropped EXE 1 IoCs

pid	Process
988	wztuj.exe

Loads dropped DLL 1 IoCs

pid	Process
1456	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
3248	cmd.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4164	1456	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	wztuj.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-08-09_081a23e0dd9c04a66a2e2698b624928f_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
3248	cmd.exe
5844	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
5844	PING.EXE

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3348	2026-08-09_081a23e0dd9c04a66a2e2698b624928f_elex_wannacry.exe
988	wztuj.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3348 wrote to memory of 3248	3348	2026-08-09_081a23e0dd9c04a66a2e2698b624928f_elex_wannacry.exe	89
PID 3248 wrote to memory of 5844	3248	cmd.exe	91
PID 3248 wrote to memory of 988	3248	cmd.exe	92
PID 988 wrote to memory of 1456	988	wztuj.exe	93

C:\Users\Admin\AppData\Local\Temp\2026-08-09_081a23e0dd9c04a66a2e2698b624928f_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-09_081a23e0dd9c04a66a2e2698b624928f_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3348
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&c:\wztuj.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-09_081a23e0dd9c04a66a2e2698b624928f_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:3248
- - 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:5844
- - \??\c:\wztuj.exe
    c:\wztuj.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-09_081a23e0dd9c04a66a2e2698b624928f_elex_wannacry.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:988
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\maapuma\dkzwc.dll",DoVirusScan c:\wztuj.exe
      4⤵
      Loads dropped DLL
      System Location Discovery: System Language Discovery
      PID:1456
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 1456 -s 476
        5⤵
        Program crash
        
        PID:4164

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 1456 -ip 1456
1⤵
PID:848

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

dkzwc.dll

Path \??\c:\maapuma\dkzwc.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

wztuj.exe

Path \??\c:\wztuj.exe
Size 87KB
SHA256 d83721494933848dd7da872cb7d3ab026ff240cc2b0d748f7f7b0b62a674d8d7
MD5 a5bc684be80426d66ee38c3fa81bdf5c
SHA1 24b788f9dfe44f65f9903ca82c0bf9ffeafa0608
SHA512 ee6bb89b3159927abbbd835ddbba1caaec07361daea7bb4e0083182ab7398e26c5ddc160fde62bf71c1262a2c21c3643c9be25592f5855d76cc9b1ec29e1944e
SSDEEP 1536:TSSABNx6vb4RoI47zzzzzzzzzvfxzVzNrzzzgzzzzzzzzzzzzzzzz6zzzdzzzzlN:eSABNx6vb4RoI4pyjHYLhal01UoPXZ
TLSH
T1D9939D07ABA558E9E1206C70161D373597EF986F3B2497A38384FE4D9533DC1EC3614A
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/988-6-0x0000000000400000-0x0000000000417000-memory.dmp

Download

memory/1456-9-0x0000000010000000-0x0000000010032000-memory.dmp

Download

memory/3348-0-0x0000000000400000-0x0000000000417000-memory.dmp

Download

memory/3348-2-0x0000000000400000-0x0000000000417000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads