9b053a2674159494ee67f93ea9e1f4c5620365f3b79db5b1b954034512ff9396

General

Target
2026-08-09_bd0abd7879ae2f186a55678f6e3cb9b1_elex_wannacry.exe
Size 89KB
Sample260809-3sft1afm8v
SHA256 9b053a2674159494ee67f93ea9e1f4c5620365f3b79db5b1b954034512ff9396
MD5 bd0abd7879ae2f186a55678f6e3cb9b1
SHA1 ef4ce6c26b264614a5b396518c87bd0681923ba9
SHA512 d9653ad88b47d6b091715c8562d7c628c617b2486894656b3a9fc0577197d04cefbb7f17dd9c26c058947a813eeb982795a9702361db10a5528a55420146e34e
SSDEEP 1536:TSSABNx6vb4RoI47zzzzzzzzzvfxzVzNrzzzgzzzzzzzzzzzzzzzz6zzzdzzzzly:eSABNx6vb4RoI4pyjHYLhal01UoPX2
TLSH
T178939C47ABA558E9E1206870161D373197EF986F3B2597A38384FE4DA133DC1EC3618E
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
4724	mccrj.exe

Executes dropped EXE 1 IoCs

pid	Process
4724	mccrj.exe

Loads dropped DLL 1 IoCs

pid	Process
620	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
4128	cmd.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
664	620	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	2026-08-09_bd0abd7879ae2f186a55678f6e3cb9b1_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	mccrj.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
4128	cmd.exe
1136	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
1136	PING.EXE

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1440	2026-08-09_bd0abd7879ae2f186a55678f6e3cb9b1_elex_wannacry.exe
4724	mccrj.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1440 wrote to memory of 4128	1440	2026-08-09_bd0abd7879ae2f186a55678f6e3cb9b1_elex_wannacry.exe	85
PID 4128 wrote to memory of 1136	4128	cmd.exe	87
PID 4128 wrote to memory of 4724	4128	cmd.exe	88
PID 4724 wrote to memory of 620	4724	mccrj.exe	89

C:\Users\Admin\AppData\Local\Temp\2026-08-09_bd0abd7879ae2f186a55678f6e3cb9b1_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-09_bd0abd7879ae2f186a55678f6e3cb9b1_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1440
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&c:\mccrj.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-09_bd0abd7879ae2f186a55678f6e3cb9b1_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:4128
- - 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:1136
- - \??\c:\mccrj.exe
    c:\mccrj.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-09_bd0abd7879ae2f186a55678f6e3cb9b1_elex_wannacry.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:4724
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\xmtqmc\rxwdu.dll",DoVirusScan c:\mccrj.exe
      4⤵
      Loads dropped DLL
      System Location Discovery: System Language Discovery
      PID:620
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 620 -s 560
        5⤵
        Program crash
        
        PID:664

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 620 -ip 620
1⤵
PID:4292

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

mccrj.exe

Path C:\mccrj.exe
Size 89KB
SHA256 fa9b4139d0c5883af9626ea207c39b5bb860978c1474af277c03da3c3087be66
MD5 0b89eae166a71f5a8fb88916a7f234a9
SHA1 5b9374ac37e7183d02eeb17408db4d36c6e0bb7a
SHA512 47b6475f2ef0d1e301e84f7db34836f2c4f171c592dfdde33f5267ca0a34bb19109c290b38e9b2f10b3661049d10c2c95e6136b629343875faa006fa1838e713
SSDEEP 1536:TSSABNx6vb4RoI47zzzzzzzzzvfxzVzNrzzzgzzzzzzzzzzzzzzzz6zzzdzzzzlb:eSABNx6vb4RoI4pyjHYLhal01UoPXH
TLSH
T15C939C47ABA558E9E1206870161D373197EF986F3B2597A38384FE4DA133DC1EC3618E
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

rxwdu.dll

Path \??\c:\xmtqmc\rxwdu.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/620-10-0x0000000010000000-0x0000000010032000-memory.dmp

Download

memory/1440-0-0x0000000000400000-0x0000000000417000-memory.dmp

Download

memory/1440-2-0x0000000000400000-0x0000000000417000-memory.dmp

Download

memory/4724-7-0x0000000000400000-0x0000000000417000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads