21450c81bcb98fed429c63bbc82328c7b6b55c4989dc0c866a084f09fbcc3e65

General

Target
2026-08-03_e84ec2e146b36cb9c58ccecbabdcec53_elex_wannacry.exe
Size 85KB
Sample260803-mw36psgr4v
SHA256 21450c81bcb98fed429c63bbc82328c7b6b55c4989dc0c866a084f09fbcc3e65
MD5 e84ec2e146b36cb9c58ccecbabdcec53
SHA1 5b6cd815a3ac0ca76e21adda732380784b589eb4
SHA512 dc344d60887f7cdf162a0fac2dc609e768556ff8076ca25d049e40a4c2d83ecd5d6c82b6f1250b360fc01f7b2565183dc916d516de90a7a4c879bf2084aaa64c
SSDEEP 1536:TSSABNx6vb4RoI47zzzzzzzzzvfxzVzNrzzzgzzzzzzzzzzzzzzzz6zzzdzzzzlP:eSABNx6vb4RoI4pyjHYLhal01UoPXr
TLSH
T1A4838C07ABAA58E9E1206870162D373593EF946F3B2597A38384FE4D9533DC1EC3614E
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
4576	ishnwhjx.exe

Executes dropped EXE 1 IoCs

pid	Process
4576	ishnwhjx.exe

Loads dropped DLL 1 IoCs

pid	Process
4920	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
3292	cmd.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4232	4920	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	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-08-03_e84ec2e146b36cb9c58ccecbabdcec53_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	ishnwhjx.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
3292	cmd.exe
5012	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
5012	PING.EXE

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4368	2026-08-03_e84ec2e146b36cb9c58ccecbabdcec53_elex_wannacry.exe
4576	ishnwhjx.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4368 wrote to memory of 3292	4368	2026-08-03_e84ec2e146b36cb9c58ccecbabdcec53_elex_wannacry.exe	89
PID 3292 wrote to memory of 5012	3292	cmd.exe	91
PID 3292 wrote to memory of 4576	3292	cmd.exe	92
PID 4576 wrote to memory of 4920	4576	ishnwhjx.exe	93

C:\Users\Admin\AppData\Local\Temp\2026-08-03_e84ec2e146b36cb9c58ccecbabdcec53_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-03_e84ec2e146b36cb9c58ccecbabdcec53_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4368
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&c:\ishnwhjx.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-03_e84ec2e146b36cb9c58ccecbabdcec53_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:3292
- - 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:5012
- - \??\c:\ishnwhjx.exe
    c:\ishnwhjx.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-03_e84ec2e146b36cb9c58ccecbabdcec53_elex_wannacry.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:4576
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\lcfbnb\fesxv.dll",DoVirusScan c:\ishnwhjx.exe
      4⤵
      Loads dropped DLL
      System Location Discovery: System Language Discovery
      PID:4920
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 4920 -s 476
        5⤵
        Program crash
        
        PID:4232

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4920 -ip 4920
1⤵
PID:3020

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

ishnwhjx.exe

Path \??\c:\ishnwhjx.exe
Size 85KB
SHA256 55791475059c2a182427bcff8c503afcb573137ceb49eab630163f7bfe2f579e
MD5 c8c2c07c97c06dd939b52de50c3fbf85
SHA1 28b4141383067ecd46354306b2a11e059ab92868
SHA512 98712528e4d25d7af86f34e16cb8eb16f91088ae3e5e28924f235827c73282084ebc51d5bb814b256d2e3d8b7a0eb156771b64080f336f9c36adebda81ee7dbc
SSDEEP 1536:TSSABNx6vb4RoI47zzzzzzzzzvfxzVzNrzzzgzzzzzzzzzzzzzzzz6zzzdzzzzl0:eSABNx6vb4RoI4pyjHYLhal01UoPXA
TLSH
T1C9838C07ABA958E9E1206870162D373593EF946F3B2597A38384FE4D9533DC1EC3614E
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

fesxv.dll

Path \??\c:\lcfbnb\fesxv.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/4368-0-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/4368-2-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/4576-6-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/4920-9-0x0000000010000000-0x0000000010032000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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