7d8ae5ca9c6c31bb3a4675391c6112b0a6c5d49223c4b7a2b2809bfa4957c4e1

General

Target
2026-08-18_72b853f0059924d05a5b472d988a44b8_elex_wannacry.exe
Size 95KB
Sample260818-3klqaaca43
SHA256 7d8ae5ca9c6c31bb3a4675391c6112b0a6c5d49223c4b7a2b2809bfa4957c4e1
MD5 72b853f0059924d05a5b472d988a44b8
SHA1 36e14c3b6d1535743311fbac07ef6d5df1f8035f
SHA512 2cea15f4b7127a5d52b24abb2fd6c2fc084848b5c9a26117d77301e5dd8324f07513f8ef1d2f1755aa661facfa587a05a1587a9f9f1c82b0df91a6309c3e95ed
SSDEEP 1536:VSSABNx6vb4RoI47zzzzzzzzzvfxzVzNrzzzgzzzzzzzzzzzzzzzz6zzzdzzzzlH:QSABNx6vb4RoI4pyjHYLhal01UoPXj
TLSH
T169A3AD0BABAA58D9E220AC71152E377493EF946E2B149B938349FD4D9533CC1EC3714E
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
4060	hzttu.exe

Executes dropped EXE 1 IoCs

pid	Process
4060	hzttu.exe

Loads dropped DLL 1 IoCs

pid	Process
4724	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
4824	cmd.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
5292	4724	WerFault.exe	90

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	2026-08-18_72b853f0059924d05a5b472d988a44b8_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	hzttu.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
4824	cmd.exe
2316	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2316	PING.EXE

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4732	2026-08-18_72b853f0059924d05a5b472d988a44b8_elex_wannacry.exe
4060	hzttu.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4732 wrote to memory of 4824	4732	2026-08-18_72b853f0059924d05a5b472d988a44b8_elex_wannacry.exe	86
PID 4824 wrote to memory of 2316	4824	cmd.exe	88
PID 4824 wrote to memory of 4060	4824	cmd.exe	89
PID 4060 wrote to memory of 4724	4060	hzttu.exe	90

C:\Users\Admin\AppData\Local\Temp\2026-08-18_72b853f0059924d05a5b472d988a44b8_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-18_72b853f0059924d05a5b472d988a44b8_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4732
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&c:\hzttu.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-18_72b853f0059924d05a5b472d988a44b8_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:4824
- - 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:2316
- - \??\c:\hzttu.exe
    c:\hzttu.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-18_72b853f0059924d05a5b472d988a44b8_elex_wannacry.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:4060
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\yywkr\dthmoum.dll",DoVirusScan c:\hzttu.exe
      4⤵
      Loads dropped DLL
      System Location Discovery: System Language Discovery
      PID:4724
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 4724 -s 560
        5⤵
        Program crash
        
        PID:5292

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 4724 -ip 4724
1⤵
PID:5440

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

hzttu.exe

Path C:\hzttu.exe
Size 95KB
SHA256 7fb76018e3f692eac1bdc47a1ed3ceb3470fbbdb4a9aabb3e501fa0f4e85dfbd
MD5 d2904aafc3b23aa045bc6044a13397eb
SHA1 360df3d541c19999bd8298fd54dc8ed9a36fb1e4
SHA512 270f8c9c281d57d28ff57bf3f16e85237b2e9a015003e16660013dfabf77790bfba982c0391dc6f685bbfc4ed83c93c1d597f80d334cf0b60576d3b2660518bb
SSDEEP 1536:VSSABNx6vb4RoI47zzzzzzzzzvfxzVzNrzzzgzzzzzzzzzzzzzzzz6zzzdzzzzl6:QSABNx6vb4RoI4pyjHYLhal01UoPX+
TLSH
T16FA3AD0BABAA58D9E220AC71152E377493EF946E2B149B938349FD4D9533CC1EC3714E
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

dthmoum.dll

Path \??\c:\yywkr\dthmoum.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

Submit Download

memory/4060-7-0x0000000000400000-0x0000000000417000-memory.dmp

Download

memory/4724-10-0x0000000010000000-0x0000000010032000-memory.dmp

Download

memory/4732-0-0x0000000000400000-0x0000000000417000-memory.dmp

Download

memory/4732-2-0x0000000000400000-0x0000000000417000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads