437bfacb61dd3c80f0e10d8f6ca93a8b0dc7b287c41fffe295227b59e9195fe6

General

Target
2026-10-22_09fc61bd426432a6718c42f0aad936fb_elex_wannacry.exe
Size 88KB
Sample261024-173afaxthw
SHA256 437bfacb61dd3c80f0e10d8f6ca93a8b0dc7b287c41fffe295227b59e9195fe6
MD5 09fc61bd426432a6718c42f0aad936fb
SHA1 2693a17e3274871ce1a9238fb54ec630ed14cab5
SHA512 cad4b39d34643d6d5e0bcfd5511a9085ec230eb0697571d345da964d75124979a92ccf0430e9fac898536968c69a07653f1bfc08481d8a500a7bf4a0d1936854
SSDEEP 1536:TSSABNx6vb4RoI47zzzzzzzzzvfxzVzNrzzzgzzzzzzzzzzzzzzzz6zzzdzzzzla:eSABNx6vb4RoI4pyjHYLhal01UoPX
TLSH
T1E9939D47ABA598E9E0206C70161D773483EE986F3B1497A38384FE4EE133DC5EC3614A
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

defense_evasion discovery execution

Malware Config

Signatures

Deletes itself 1 TTPs 1 IoCs

defense_evasion

File Deletion

T1070.004

pid	Process
4516	jbhaf.exe

Executes dropped EXE 1 IoCs

pid	Process
4516	jbhaf.exe

Loads dropped DLL 1 IoCs

pid	Process
4984	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
5100	cmd.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3424	4984	WerFault.exe	87

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	2026-10-22_09fc61bd426432a6718c42f0aad936fb_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	jbhaf.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
5100	cmd.exe
4256	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4256	PING.EXE

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4296	2026-10-22_09fc61bd426432a6718c42f0aad936fb_elex_wannacry.exe
4516	jbhaf.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4296 wrote to memory of 5100	4296	2026-10-22_09fc61bd426432a6718c42f0aad936fb_elex_wannacry.exe	83
PID 5100 wrote to memory of 4256	5100	cmd.exe	85
PID 5100 wrote to memory of 4516	5100	cmd.exe	86
PID 4516 wrote to memory of 4984	4516	jbhaf.exe	87

C:\Users\Admin\AppData\Local\Temp\2026-10-22_09fc61bd426432a6718c42f0aad936fb_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-10-22_09fc61bd426432a6718c42f0aad936fb_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4296
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&c:\jbhaf.exe "C:\Users\Admin\AppData\Local\Temp\2026-10-22_09fc61bd426432a6718c42f0aad936fb_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:5100
- - 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:4256
- - \??\c:\jbhaf.exe
    c:\jbhaf.exe "C:\Users\Admin\AppData\Local\Temp\2026-10-22_09fc61bd426432a6718c42f0aad936fb_elex_wannacry.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:4516
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\hscomzi\jpuxu.dll",DoVirusScan c:\jbhaf.exe
      4⤵
      Loads dropped DLL
      System Location Discovery: System Language Discovery
      PID:4984
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 4984 -s 560
        5⤵
        Program crash
        
        PID:3424

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4984 -ip 4984
1⤵
PID:3540

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

Indicator Removal

1

T1070

File Deletion

1

T1070.004

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

jbhaf.exe

Path C:\jbhaf.exe
Size 88KB
SHA256 08d2f3b296b3ac6771e04880cf3fba5892a32e0eb4572563cfa638bf7fa1bca4
MD5 a10111c3eeadf66208e343bcc2d1ca8f
SHA1 6659694d635c22b691fc2f5a1274595055c50a2b
SHA512 86ae61226529e99ce63a860fc84048bd672f603cc32c77007028c06628077c7d5f84d6c4f91fe8720ca18c6a0455be1f07eb56ae151adccbb260fc7d28e8d802
SSDEEP 1536:TSSABNx6vb4RoI47zzzzzzzzzvfxzVzNrzzzgzzzzzzzzzzzzzzzz6zzzdzzzzle:eSABNx6vb4RoI4pyjHYLhal01UoPXy
TLSH
T10E938D47ABA598E5E0206C70161D773483EED86F3B1497A38384FE4EE133D95EC3614A
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

jpuxu.dll

Path \??\c:\hscomzi\jpuxu.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/4296-0-0x0000000000400000-0x0000000000417000-memory.dmp

Download

memory/4296-2-0x0000000000400000-0x0000000000417000-memory.dmp

Download

memory/4516-7-0x0000000000400000-0x0000000000417000-memory.dmp

Download

memory/4984-10-0x0000000010000000-0x0000000010032000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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