79556537f59cd3d14afbf5107b797e9a0ebd9150cd403fcc351044a2428de18f

General

Target
2026-08-22_949250106beb15190082cfda905e8e86_elex_wannacry.exe
Size 88KB
Sample260823-fa3vgssgle
SHA256 79556537f59cd3d14afbf5107b797e9a0ebd9150cd403fcc351044a2428de18f
MD5 949250106beb15190082cfda905e8e86
SHA1 543be7700d70ea0d4a2656727a2c6795bc7cb371
SHA512 b96e3e333d56560f0bd6812bdae87a1fe22c217eb8c8f9f42d776d3ea18647d03c17ef5b4f0a8074d921997a6af4e676bdf29998f33d6fcb4204fd09a915de86
SSDEEP 1536:TSSABNx6vb4RoI47zzzzzzzzzvfxzVzNrzzzgzzzzzzzzzzzzzzzz6zzzdzzzzl8:eSABNx6vb4RoI4pyjHYLhal01UoPXQ
TLSH
T1F1938C47ABA598E9E1206870062D373597EF986F3B2597A38384FE4D9133DC1EC3614E
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2832	effzl.exe

Executes dropped EXE 1 IoCs

pid	Process
2832	effzl.exe

Loads dropped DLL 1 IoCs

pid	Process
6104	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
264	cmd.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2660	6104	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	effzl.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-08-22_949250106beb15190082cfda905e8e86_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
264	cmd.exe
800	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
800	PING.EXE

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4140	2026-08-22_949250106beb15190082cfda905e8e86_elex_wannacry.exe
2832	effzl.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4140 wrote to memory of 264	4140	2026-08-22_949250106beb15190082cfda905e8e86_elex_wannacry.exe	89
PID 264 wrote to memory of 800	264	cmd.exe	91
PID 264 wrote to memory of 2832	264	cmd.exe	92
PID 2832 wrote to memory of 6104	2832	effzl.exe	93

C:\Users\Admin\AppData\Local\Temp\2026-08-22_949250106beb15190082cfda905e8e86_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-22_949250106beb15190082cfda905e8e86_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4140
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&c:\effzl.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-22_949250106beb15190082cfda905e8e86_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:264
- - 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:800
- - \??\c:\effzl.exe
    c:\effzl.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-22_949250106beb15190082cfda905e8e86_elex_wannacry.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2832
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\ddjzz\kpzyyeh.dll",DoVirusScan c:\effzl.exe
      4⤵
      Loads dropped DLL
      System Location Discovery: System Language Discovery
      PID:6104
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 6104 -s 476
        5⤵
        Program crash
        
        PID:2660

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 6104 -ip 6104
1⤵
PID:3372

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

kpzyyeh.dll

Path \??\c:\ddjzz\kpzyyeh.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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effzl.exe

Path \??\c:\effzl.exe
Size 88KB
SHA256 56ce0ffb723aa9f99340c0f47dced7323837e7ffd3b02c4b7af95ff0d4511258
MD5 9cde9123afc2e0ee401ee9cf5613349f
SHA1 86f027d70c2cd5c74e13481fb6e79d1b65d3871c
SHA512 1f033e5eb5e2a43130d872dbc206ea76f3cde05ac6bbe907ef8ff951aaf4e7a3df450549c9229c8d708c62af162fe257a9a0452ae99daaf7276ea68e75abbbe2
SSDEEP 1536:TSSABNx6vb4RoI47zzzzzzzzzvfxzVzNrzzzgzzzzzzzzzzzzzzzz6zzzdzzzzl3:eSABNx6vb4RoI4pyjHYLhal01UoPXL
TLSH
T1D4938C07ABA598E9E1206C70161D373597EE986F3B2597A38384FE4DA133DC1EC3614E
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/2832-6-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/4140-0-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/4140-2-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/6104-9-0x0000000010000000-0x0000000010032000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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