1cd59dacf505e87ddcb8a48217084168475a3402ceffacb341e6eb1e70b3dfc9

General

Target
2026-10-26_5f465013b5092578cac9ce1b7f1c8872_elex_wannacry.exe
Size 90KB
Sample261027-tp31pasz4p
SHA256 1cd59dacf505e87ddcb8a48217084168475a3402ceffacb341e6eb1e70b3dfc9
MD5 5f465013b5092578cac9ce1b7f1c8872
SHA1 f19d692817d42ca6991f4a4cd8ff756230bb0d7d
SHA512 5aef3b97a898db6251b0f3d215b22cd0ec202a32c8c795fb261a917ff46e5d5e04fb5dfb8b71cde620bd5a5e12fdcbd44a22244717a9e435dc564db6f45e3558
SSDEEP 1536:TSSABNx6vb4RoI47zzzzzzzzzvfxzVzNrzzzgzzzzzzzzzzzzzzzz6zzzdzzzzli:eSABNx6vb4RoI4pyjHYLhal01UoPX+
TLSH
T109938D57ABA598E5E0206C70061E773483EE986F3B1497A38384FE4DE533D95EC3618E
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
4880	guhlkn.exe

Executes dropped EXE 1 IoCs

pid	Process
4880	guhlkn.exe

Loads dropped DLL 1 IoCs

pid	Process
1276	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
1128	cmd.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
5316	1276	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	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	guhlkn.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-10-26_5f465013b5092578cac9ce1b7f1c8872_elex_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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
1128	cmd.exe
2436	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2436	PING.EXE

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
5280	2026-10-26_5f465013b5092578cac9ce1b7f1c8872_elex_wannacry.exe
4880	guhlkn.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 5280 wrote to memory of 1128	5280	2026-10-26_5f465013b5092578cac9ce1b7f1c8872_elex_wannacry.exe	89
PID 1128 wrote to memory of 2436	1128	cmd.exe	91
PID 1128 wrote to memory of 4880	1128	cmd.exe	92
PID 4880 wrote to memory of 1276	4880	guhlkn.exe	93

C:\Users\Admin\AppData\Local\Temp\2026-10-26_5f465013b5092578cac9ce1b7f1c8872_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-10-26_5f465013b5092578cac9ce1b7f1c8872_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5280
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&c:\guhlkn.exe "C:\Users\Admin\AppData\Local\Temp\2026-10-26_5f465013b5092578cac9ce1b7f1c8872_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:1128
- - 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:2436
- - \??\c:\guhlkn.exe
    c:\guhlkn.exe "C:\Users\Admin\AppData\Local\Temp\2026-10-26_5f465013b5092578cac9ce1b7f1c8872_elex_wannacry.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:4880
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\gjyov\hdexgb.dll",DoVirusScan c:\guhlkn.exe
      4⤵
      Loads dropped DLL
      System Location Discovery: System Language Discovery
      PID:1276
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 1276 -s 560
        5⤵
        Program crash
        
        PID:5316

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 1276 -ip 1276
1⤵
PID:3516

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

guhlkn.exe

Path C:\guhlkn.exe
Size 90KB
SHA256 776c5d112f3450ea5ef02638070640e70d1616a1cff671e07c7a321cceecd546
MD5 2822044a51b627e2b820202689bfa27e
SHA1 cfe4589126197d0a02f0d07ce0e3f449434a69bf
SHA512 d60c90a4005ac4bbbdbc0849272a228e24de5f9a357ba190cffddec4b0d8ed5fc8cd7a20c0f3e36409e428056e4077fe09c42f5248e99ad886fbdc53530d9e28
SSDEEP 1536:TSSABNx6vb4RoI47zzzzzzzzzvfxzVzNrzzzgzzzzzzzzzzzzzzzz6zzzdzzzzle:eSABNx6vb4RoI4pyjHYLhal01UoPXi
TLSH
T18F938D57ABA598E5E0206C70061E773483EE986F3B1497A38384FE4DE533D95EC3618E
MD5 SHA1 SHA512 SSDEEP TLSH

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hdexgb.dll

Path \??\c:\gjyov\hdexgb.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/1276-10-0x0000000010000000-0x0000000010032000-memory.dmp

Download

memory/4880-7-0x0000000000400000-0x0000000000417000-memory.dmp

Download

memory/5280-0-0x0000000000400000-0x0000000000417000-memory.dmp

Download

memory/5280-2-0x0000000000400000-0x0000000000417000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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