250519753d03772bf28b03754f69b001a45d0ed07eb4ff0cdcee312b83160d51

General

Target
2026-08-07_36644e60243100ed08ca179452411b2d_elex_wannacry.exe
Size 91KB
Sample260807-cbm9msde45
SHA256 250519753d03772bf28b03754f69b001a45d0ed07eb4ff0cdcee312b83160d51
MD5 36644e60243100ed08ca179452411b2d
SHA1 2bc301336c19abb517252255a72c031d11a2cb66
SHA512 e50a11837d85e9427924b89c778a3ffd7d0448d8ff882935ad6a40be7da7a5bcbce68ddfdc3b4a84a61c38428b4563f5994c21a65f4fa2b6a5a61f8bd435323e
SSDEEP 1536:TSSABNx6vb4RoI47zzzzzzzzzvfxzVzNrzzzgzzzzzzzzzzzzzzzz6zzzdzzzzlM:eSABNx6vb4RoI4pyjHYLhal01UoPX
TLSH
T1F4939E07ABA588D9F1207C70161D373497EE986E3B1897939348EE4ED433DD1EC3618A
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
1344	gdmsxyw.exe

Executes dropped EXE 1 IoCs

pid	Process
1344	gdmsxyw.exe

Loads dropped DLL 1 IoCs

pid	Process
2704	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
4244	cmd.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4356	2704	WerFault.exe	91

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	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-08-07_36644e60243100ed08ca179452411b2d_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	gdmsxyw.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
4244	cmd.exe
1760	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
1760	PING.EXE

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1924	2026-08-07_36644e60243100ed08ca179452411b2d_elex_wannacry.exe
1344	gdmsxyw.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1924 wrote to memory of 4244	1924	2026-08-07_36644e60243100ed08ca179452411b2d_elex_wannacry.exe	87
PID 4244 wrote to memory of 1760	4244	cmd.exe	89
PID 4244 wrote to memory of 1344	4244	cmd.exe	90
PID 1344 wrote to memory of 2704	1344	gdmsxyw.exe	91

C:\Users\Admin\AppData\Local\Temp\2026-08-07_36644e60243100ed08ca179452411b2d_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-07_36644e60243100ed08ca179452411b2d_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1924
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&c:\gdmsxyw.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-07_36644e60243100ed08ca179452411b2d_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:4244
- - 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:1760
- - \??\c:\gdmsxyw.exe
    c:\gdmsxyw.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-07_36644e60243100ed08ca179452411b2d_elex_wannacry.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:1344
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\whftz\rdhkf.dll",DoVirusScan c:\gdmsxyw.exe
      4⤵
      Loads dropped DLL
      System Location Discovery: System Language Discovery
      PID:2704
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 2704 -s 560
        5⤵
        Program crash
        
        PID:4356

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 2704 -ip 2704
1⤵
PID:3124

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

gdmsxyw.exe

Path C:\gdmsxyw.exe
Size 91KB
SHA256 59f59c7d639151bf98e54c4cd94da26096032c6d78795e9bd331c2c6444a7445
MD5 2ebf67deeb2312494fd19357b84429c4
SHA1 39e84cf6caa893ab43a5e34caf34f476183e6363
SHA512 29e9d78e04522f87c7e6dfa1162ec076cd346f4783c84c86a5ae2d68f190213fea34f893e4a18fc448da3aff9feb6a849d62a2bc19990ee34da3c08cb5bbe8cd
SSDEEP 1536:TSSABNx6vb4RoI47zzzzzzzzzvfxzVzNrzzzgzzzzzzzzzzzzzzzz6zzzdzzzzlF:eSABNx6vb4RoI4pyjHYLhal01UoPXp
TLSH
T1C3939E07AB6588D9F1207C70165D373097EE986E3B1857639388EE4ED473DD1EC3A18A
MD5 SHA1 SHA512 SSDEEP TLSH

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rdhkf.dll

Path \??\c:\whftz\rdhkf.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/1344-7-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/1924-0-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/1924-2-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/2704-10-0x0000000010000000-0x0000000010032000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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