2b3f2453d8a205c77b111799d7cf7bfee70fc24f318ae8650852267c94eed906

General

Target
2026-08-22_3fa83c4be25e25ee8508454f0fbffa0b_elex_wannacry.exe
Size 89KB
Sample260822-e273va1brh
SHA256 2b3f2453d8a205c77b111799d7cf7bfee70fc24f318ae8650852267c94eed906
MD5 3fa83c4be25e25ee8508454f0fbffa0b
SHA1 d4fd0ec2e9f65fdf4a3228e5e9637b86b530ae1f
SHA512 0db04a19b1713d558436813f53087f54cc16f131ccc487d16a47e40fa7494a32fd0f04238abfb5e4af4bc743fdc16a773875aaa2d268a9a793aaa5c8e3a5d70f
SSDEEP 1536:TSSABNx6vb4RoI47zzzzzzzzzvfxzVzNrzzzgzzzzzzzzzzzzzzzz6zzzdzzzzl:eSABNx6vb4RoI4pyjHYLhal01UoPX
TLSH
T1F3939D47ABA958E9E1206C70051D373597EF98AB3B2597A38384FE4DA133DC1EC3614E
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
3208	okqpdkz.exe

Executes dropped EXE 1 IoCs

pid	Process
3208	okqpdkz.exe

Loads dropped DLL 1 IoCs

pid	Process
4748	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
4556	cmd.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1924	4748	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	okqpdkz.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-08-22_3fa83c4be25e25ee8508454f0fbffa0b_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
4556	cmd.exe
1444	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
1444	PING.EXE

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2272	2026-08-22_3fa83c4be25e25ee8508454f0fbffa0b_elex_wannacry.exe
3208	okqpdkz.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2272 wrote to memory of 4556	2272	2026-08-22_3fa83c4be25e25ee8508454f0fbffa0b_elex_wannacry.exe	89
PID 4556 wrote to memory of 1444	4556	cmd.exe	91
PID 4556 wrote to memory of 3208	4556	cmd.exe	92
PID 3208 wrote to memory of 4748	3208	okqpdkz.exe	93

C:\Users\Admin\AppData\Local\Temp\2026-08-22_3fa83c4be25e25ee8508454f0fbffa0b_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-22_3fa83c4be25e25ee8508454f0fbffa0b_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2272
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&c:\okqpdkz.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-22_3fa83c4be25e25ee8508454f0fbffa0b_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:4556
- - 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:1444
- - \??\c:\okqpdkz.exe
    c:\okqpdkz.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-22_3fa83c4be25e25ee8508454f0fbffa0b_elex_wannacry.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:3208
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\njbcw\pqdcy.dll",DoVirusScan c:\okqpdkz.exe
      4⤵
      Loads dropped DLL
      System Location Discovery: System Language Discovery
      PID:4748
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 4748 -s 504
        5⤵
        Program crash
        
        PID:1924

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 392 -p 4748 -ip 4748
1⤵
PID:4252

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

pqdcy.dll

Path \??\c:\njbcw\pqdcy.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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okqpdkz.exe

Path \??\c:\okqpdkz.exe
Size 89KB
SHA256 8e0a01609d817008eae2927e9abf69c9982dcf06c136bf5572a4e046131fac15
MD5 f6d6d0743921faadba64647fbd603c8a
SHA1 1e49c7535f8db7582c43001c3a47166cf3b67000
SHA512 b628cf1b9c32ea45744d20266ec1f2ea975886fd4e64b5e187bd4b0ceff2001b4a1d082cb7dc3f9db3c829baf4da33552e80f385535f94652ef3508c09e1f045
SSDEEP 1536:TSSABNx6vb4RoI47zzzzzzzzzvfxzVzNrzzzgzzzzzzzzzzzzzzzz6zzzdzzzzlr:eSABNx6vb4RoI4pyjHYLhal01UoPXv
TLSH
T1A3939D07ABA958E9E1206C70151D373597EF98AB3B2597A38384FE4D9133DC1EC3614E
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/2272-0-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/2272-2-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/3208-6-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/4748-9-0x0000000010000000-0x0000000010032000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads