a6bc0f5433a3480e118ced9c5e181ee0ca6d44ee6af1b9597ae82895ed71dc49

General

Target
2026-07-20_bacb1b2581c366fad9d1f49181cacef6_elex_wannacry.exe
Size 86KB
Sample260720-c4p9psfv41
SHA256 a6bc0f5433a3480e118ced9c5e181ee0ca6d44ee6af1b9597ae82895ed71dc49
MD5 bacb1b2581c366fad9d1f49181cacef6
SHA1 29207b2a33a79cb6de9acc9249581c694d369f2b
SHA512 2710dcfd601306a50e0b334c37036500d3aa8e8cc3105229212cb90cad34c43081a136c1013d267fa1b18057f4440bc00c81a18e726f0b6ed22ed3777d9c011c
SSDEEP 1536:TSSABNx6vb4RoI47zzzzzzzzzvfxzVzNrzzzgzzzzzzzzzzzzzzzz6zzzdzzzzlv:eSABNx6vb4RoI4pyjHYLhal01UoPXT
TLSH
T1C0839C0BABAA58E9E120AC70152D377593EF946F2B2597A38344FE4D9533CC1EC3614E
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
3252	hwiek.exe

Executes dropped EXE 1 IoCs

pid	Process
3252	hwiek.exe

Loads dropped DLL 1 IoCs

pid	Process
2664	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
5044	cmd.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1880	2664	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	2026-07-20_bacb1b2581c366fad9d1f49181cacef6_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	hwiek.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
5044	cmd.exe
3692	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
3692	PING.EXE

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4716	2026-07-20_bacb1b2581c366fad9d1f49181cacef6_elex_wannacry.exe
3252	hwiek.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4716 wrote to memory of 5044	4716	2026-07-20_bacb1b2581c366fad9d1f49181cacef6_elex_wannacry.exe	85
PID 5044 wrote to memory of 3692	5044	cmd.exe	87
PID 5044 wrote to memory of 3252	5044	cmd.exe	88
PID 3252 wrote to memory of 2664	3252	hwiek.exe	89

C:\Users\Admin\AppData\Local\Temp\2026-07-20_bacb1b2581c366fad9d1f49181cacef6_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-07-20_bacb1b2581c366fad9d1f49181cacef6_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4716
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&c:\hwiek.exe "C:\Users\Admin\AppData\Local\Temp\2026-07-20_bacb1b2581c366fad9d1f49181cacef6_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:5044
- - 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:3692
- - \??\c:\hwiek.exe
    c:\hwiek.exe "C:\Users\Admin\AppData\Local\Temp\2026-07-20_bacb1b2581c366fad9d1f49181cacef6_elex_wannacry.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:3252
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\kdlfy\grjvsnn.dll",DoVirusScan c:\hwiek.exe
      4⤵
      Loads dropped DLL
      System Location Discovery: System Language Discovery
      PID:2664
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 2664 -s 560
        5⤵
        Program crash
        
        PID:1880

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2664 -ip 2664
1⤵
PID:3780

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

hwiek.exe

Path C:\hwiek.exe
Size 86KB
SHA256 c52cdb14a95d643598f09364fa16657a926e5a620edaf0c6bebdf5b755a9f327
MD5 13d98b777b6bf6aee6bc69bff17486f2
SHA1 aadf4e855b9383414467c074862b5b17f8f3e03d
SHA512 f85a2756fe0e5928b4d75a1431607696bf3aae125c8f0b402416a10d843f87915045b18596766179eead80f8f1e1f2bdcc137abe3e160f826177e2b3738ab82a
SSDEEP 1536:TSSABNx6vb4RoI47zzzzzzzzzvfxzVzNrzzzgzzzzzzzzzzzzzzzz6zzzdzzzzlV:eSABNx6vb4RoI4pyjHYLhal01UoPXp
TLSH
T1FA939C0BABAA58E9E1206C70152D377593EF946F3B2597A38384FE4D9533CC0EC3614A
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

grjvsnn.dll

Path \??\c:\kdlfy\grjvsnn.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/2664-11-0x0000000010000000-0x0000000010032000-memory.dmp

Download

memory/3252-6-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/3252-8-0x0000000000400000-0x0000000000417000-memory.dmp

Download

memory/4716-0-0x0000000000400000-0x0000000000417000-memory.dmp

Download

memory/4716-2-0x0000000000400000-0x0000000000417000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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