8063ab1201f9299a370d4e940eebae20886529c4f0831ca0f4ae616447a294a4

General

Target
2026-08-01_e1b7da7c6dec45904e976f923834d305_elex_wannacry.exe
Size 86KB
Sample260801-ptb1jsbj2z
SHA256 8063ab1201f9299a370d4e940eebae20886529c4f0831ca0f4ae616447a294a4
MD5 e1b7da7c6dec45904e976f923834d305
SHA1 c86c47fae5eb3c91fa99bdd813ebbb43f26b8ccd
SHA512 1219c17b41134b2d9ce8f4538ec9fbc5ffdef307b45d4be31b745eb4df49d8e41b2d20d4e63d929b98a2afed7a79973e91e44a4c41a2f90a2816710f0eb67016
SSDEEP 1536:TSSABNx6vb4RoI47zzzzzzzzzvfxzVzNrzzzgzzzzzzzzzzzzzzzz6zzzdzzzzlo:eSABNx6vb4RoI4pyjHYLhal01UoPX0
TLSH
T108939D0BABAA58E9E1206870052D373597EF986F3B2597A38344FE4D9133DC1EC3614E
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
1208	yqhyd.exe

Executes dropped EXE 1 IoCs

pid	Process
1208	yqhyd.exe

Loads dropped DLL 1 IoCs

pid	Process
1276	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
2096	cmd.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
892	1276	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	2026-08-01_e1b7da7c6dec45904e976f923834d305_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	yqhyd.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
2096	cmd.exe
5136	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
5136	PING.EXE

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4356	2026-08-01_e1b7da7c6dec45904e976f923834d305_elex_wannacry.exe
1208	yqhyd.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4356 wrote to memory of 2096	4356	2026-08-01_e1b7da7c6dec45904e976f923834d305_elex_wannacry.exe	89
PID 2096 wrote to memory of 5136	2096	cmd.exe	91
PID 2096 wrote to memory of 1208	2096	cmd.exe	92
PID 1208 wrote to memory of 1276	1208	yqhyd.exe	93

C:\Users\Admin\AppData\Local\Temp\2026-08-01_e1b7da7c6dec45904e976f923834d305_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-01_e1b7da7c6dec45904e976f923834d305_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4356
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&c:\yqhyd.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-01_e1b7da7c6dec45904e976f923834d305_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:2096
- - 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:5136
- - \??\c:\yqhyd.exe
    c:\yqhyd.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-01_e1b7da7c6dec45904e976f923834d305_elex_wannacry.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:1208
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\lwlbk\isjimu.dll",DoVirusScan c:\yqhyd.exe
      4⤵
      Loads dropped DLL
      System Location Discovery: System Language Discovery
      PID:1276
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 1276 -s 476
        5⤵
        Program crash
        
        PID:892

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 392 -p 1276 -ip 1276
1⤵
PID:4848

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

isjimu.dll

Path \??\c:\lwlbk\isjimu.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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yqhyd.exe

Path \??\c:\yqhyd.exe
Size 87KB
SHA256 ff6020796b10d231e82fef41fa3daf09f58cb2da8cb68a52071b2bf30c9e2e50
MD5 30285d63d7ad88b98c5a2c14c0fa42a9
SHA1 c5881e328f6f932f75afe4670ec4d6c3eb5fffd1
SHA512 471979e24abcb67adad615d35e90deb3f6f8058186e6f0116825e4b8b548ab630c1018a6a8c49d47b6869b9bb388482a5382a6321c9da2e92bdf031ee57f1b1c
SSDEEP 1536:TSSABNx6vb4RoI47zzzzzzzzzvfxzVzNrzzzgzzzzzzzzzzzzzzzz6zzzdzzzzl7:eSABNx6vb4RoI4pyjHYLhal01UoPXNh
TLSH
T1F3939D07ABAA58E9E1206870162D373597EF986F3B2597A38344FE4D9133DC1EC3614E
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/1208-6-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/1276-9-0x0000000010000000-0x0000000010032000-memory.dmp

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memory/4356-0-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/4356-2-0x0000000000400000-0x0000000000417000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads