db17816bd81aa79f9c59c03e7097e400dad468c7be4ba0a8f01b7ca622e1d6c8

General

Target
2026-07-27_d711be25affed35db75c9d6361166a74_elex_wannacry.exe
Size 84KB
Sample260727-2m76mattht
SHA256 db17816bd81aa79f9c59c03e7097e400dad468c7be4ba0a8f01b7ca622e1d6c8
MD5 d711be25affed35db75c9d6361166a74
SHA1 ef4759aeafcfc4811f327cbeb1f3ab63fa065ed5
SHA512 3fb1e4439ac55a1d53cbf6dfe254ae6fe0c62eb4030834982d49c411a7089e62e44ad8c46e44659e81373e8d0ca6291f1eddb178b87bcea2f1f91b836c4b8b28
SSDEEP 1536:TSSABNx6vb4RoI47zzzzzzzzzvfxzVzNrzzzgzzzzzzzzzzzzzzzz6zzzdzzzzlI:eSABNx6vb4RoI4pyjHYLhal01UoPXE
TLSH
T13B83AD0BABAA58D9E220AC71152D377593EF94AE3B149B938345FE4D9433CC0EC3614E
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
976	lsssk.exe

Executes dropped EXE 1 IoCs

pid	Process
976	lsssk.exe

Loads dropped DLL 1 IoCs

pid	Process
2764	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
5112	cmd.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1368	2764	WerFault.exe	89

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	2026-07-27_d711be25affed35db75c9d6361166a74_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	lsssk.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
5112	cmd.exe
1812	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
1812	PING.EXE

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
5024	2026-07-27_d711be25affed35db75c9d6361166a74_elex_wannacry.exe
976	lsssk.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 5024 wrote to memory of 5112	5024	2026-07-27_d711be25affed35db75c9d6361166a74_elex_wannacry.exe	85
PID 5112 wrote to memory of 1812	5112	cmd.exe	87
PID 5112 wrote to memory of 976	5112	cmd.exe	88
PID 976 wrote to memory of 2764	976	lsssk.exe	89

C:\Users\Admin\AppData\Local\Temp\2026-07-27_d711be25affed35db75c9d6361166a74_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-07-27_d711be25affed35db75c9d6361166a74_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5024
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&c:\lsssk.exe "C:\Users\Admin\AppData\Local\Temp\2026-07-27_d711be25affed35db75c9d6361166a74_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:5112
- - 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:1812
- - \??\c:\lsssk.exe
    c:\lsssk.exe "C:\Users\Admin\AppData\Local\Temp\2026-07-27_d711be25affed35db75c9d6361166a74_elex_wannacry.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:976
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\fmmhm\exrzuc.dll",DoVirusScan c:\lsssk.exe
      4⤵
      Loads dropped DLL
      System Location Discovery: System Language Discovery
      PID:2764
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 2764 -s 560
        5⤵
        Program crash
        
        PID:1368

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 2764 -ip 2764
1⤵
PID:2732

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

lsssk.exe

Path C:\lsssk.exe
Size 85KB
SHA256 00a45747da5707af46484d9eb8343bae976e8bb90017481e35128d52943f4917
MD5 23ea5bdb2204a3aa99be7e3bbbf57dec
SHA1 98c9db8104da74a93c10273a2aad3ba6670e8df9
SHA512 08be7951f057381c1516fa699f3534d884c6a3377a367449886357f8866f00617601b31208460919918bc76c7405325027143fa189f939d6dd579034afd375c2
SSDEEP 1536:TSSABNx6vb4RoI47zzzzzzzzzvfxzVzNrzzzgzzzzzzzzzzzzzzzz6zzzdzzzzle:eSABNx6vb4RoI4pyjHYLhal01UoPXK
TLSH
T1F583AD0BABAA58D9E220AC71152D377593EF94AE3B149B938345EE4D9533CC0EC3614E
MD5 SHA1 SHA512 SSDEEP TLSH

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exrzuc.dll

Path \??\c:\fmmhm\exrzuc.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/976-7-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/2764-10-0x0000000010000000-0x0000000010032000-memory.dmp

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memory/5024-0-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/5024-2-0x0000000000400000-0x0000000000417000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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