1f35909258bd4b7afd5b1c7684eadfe6fe4cab5ed8df663c9965c9ae62ee754a

General

Target
2026-07-28_2685f71d1e67b2f2e611b694a4d01c9d_elex_wannacry.exe
Size 86KB
Sample260728-3cacaaz1cs
SHA256 1f35909258bd4b7afd5b1c7684eadfe6fe4cab5ed8df663c9965c9ae62ee754a
MD5 2685f71d1e67b2f2e611b694a4d01c9d
SHA1 343f3bc49ab8465ae8eccb7738c8cca843ee5a7e
SHA512 1b5aa732677a4b3cc62c19a77bff4543ca09a1e67cd1d959269f5507e66bf2311ecfe69e1a238b0492ecac6dee5808066e3355666c193afe33ce66e7c8dba904
SSDEEP 1536:TSSABNx6vb4RoI47zzzzzzzzzvfxzVzNrzzzgzzzzzzzzzzzzzzzz6zzzdzzzzlc:eSABNx6vb4RoI4pyjHYLhal01UoPXA
TLSH
T1DE83AD07ABAA58D9E1206C71162E773493FF946E3B149B934348ED4D9537CC1EC3614E
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
3464	ieusv.exe

Executes dropped EXE 1 IoCs

pid	Process
3464	ieusv.exe

Loads dropped DLL 1 IoCs

pid	Process
4660	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
824	cmd.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2924	4660	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	2026-07-28_2685f71d1e67b2f2e611b694a4d01c9d_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	ieusv.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
824	cmd.exe
4268	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4268	PING.EXE

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4312	2026-07-28_2685f71d1e67b2f2e611b694a4d01c9d_elex_wannacry.exe
3464	ieusv.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4312 wrote to memory of 824	4312	2026-07-28_2685f71d1e67b2f2e611b694a4d01c9d_elex_wannacry.exe	89
PID 824 wrote to memory of 4268	824	cmd.exe	91
PID 824 wrote to memory of 3464	824	cmd.exe	92
PID 3464 wrote to memory of 4660	3464	ieusv.exe	93

C:\Users\Admin\AppData\Local\Temp\2026-07-28_2685f71d1e67b2f2e611b694a4d01c9d_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-07-28_2685f71d1e67b2f2e611b694a4d01c9d_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4312
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&c:\ieusv.exe "C:\Users\Admin\AppData\Local\Temp\2026-07-28_2685f71d1e67b2f2e611b694a4d01c9d_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:824
- - 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:4268
- - \??\c:\ieusv.exe
    c:\ieusv.exe "C:\Users\Admin\AppData\Local\Temp\2026-07-28_2685f71d1e67b2f2e611b694a4d01c9d_elex_wannacry.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:3464
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\zpgcj\vzoax.dll",DoVirusScan c:\ieusv.exe
      4⤵
      Loads dropped DLL
      System Location Discovery: System Language Discovery
      PID:4660
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 4660 -s 476
        5⤵
        Program crash
        
        PID:2924

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 4660 -ip 4660
1⤵
PID:3796

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

ieusv.exe

Path \??\c:\ieusv.exe
Size 86KB
SHA256 f976da8e7c16584874e216524e3c7123ad4609aa6e2204afe976dc0ae449b081
MD5 c94d302b035eba463ff136a42d98740d
SHA1 a06d3796941da7880f1cec04b295fa34353da269
SHA512 3a65ef96b2fe05ee912a61e43f1247d05ce38e798a4d16d8bbe6512c042ec3a6ef0040fa056156d354a786237330a26fef8af2d21895489cff061d7a7812ad3c
SSDEEP 1536:TSSABNx6vb4RoI47zzzzzzzzzvfxzVzNrzzzgzzzzzzzzzzzzzzzz6zzzdzzzzlh:eSABNx6vb4RoI4pyjHYLhal01UoPX9
TLSH
T13F83AD07ABAA58D9E1206C71162E7734D3EF946E3B14AB934348EE4D9533CC5EC3A14E
MD5 SHA1 SHA512 SSDEEP TLSH

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vzoax.dll

Path \??\c:\zpgcj\vzoax.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/3464-6-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/4312-0-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/4312-2-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/4660-9-0x0000000010000000-0x0000000010032000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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