09ec56e315a78b631f15c7993d53076f035992e293ccb04aea4132363fea6866

General

Target
2026-08-04_f5dbcc0dd9be4e2da5f52e8e73b59aae_elex_wannacry.exe
Size 86KB
Sample260804-v2nxzattdv
SHA256 09ec56e315a78b631f15c7993d53076f035992e293ccb04aea4132363fea6866
MD5 f5dbcc0dd9be4e2da5f52e8e73b59aae
SHA1 aca7e0c28c3a843f5d3a59e6d09aaa667a2322ef
SHA512 80213b2de40df455759280cd6a73d340ad8892da862797a98f1262e47cc3696fae2934a24b2da9a7eff565df34994c010317dfd1bbe5034589d4716f898a2339
SSDEEP 1536:TSSABNx6vb4RoI47zzzzzzzzzvfxzVzNrzzzgzzzzzzzzzzzzzzzz6zzzdzzzzlj:eSABNx6vb4RoI4pyjHYLhal01UoPXv
TLSH
T1BE838C07ABA958E9E1206C70162D373593EE986F3B2597A38384FE4D9533DC1EC3614A
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
4860	gusjvl.exe

Executes dropped EXE 1 IoCs

pid	Process
4860	gusjvl.exe

Loads dropped DLL 1 IoCs

pid	Process
1088	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
876	cmd.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4848	1088	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	gusjvl.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-08-04_f5dbcc0dd9be4e2da5f52e8e73b59aae_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
4296	PING.EXE
876	cmd.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4296	PING.EXE

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4880	2026-08-04_f5dbcc0dd9be4e2da5f52e8e73b59aae_elex_wannacry.exe
4860	gusjvl.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4880 wrote to memory of 876	4880	2026-08-04_f5dbcc0dd9be4e2da5f52e8e73b59aae_elex_wannacry.exe	89
PID 876 wrote to memory of 4296	876	cmd.exe	91
PID 876 wrote to memory of 4860	876	cmd.exe	92
PID 4860 wrote to memory of 1088	4860	gusjvl.exe	93

C:\Users\Admin\AppData\Local\Temp\2026-08-04_f5dbcc0dd9be4e2da5f52e8e73b59aae_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-04_f5dbcc0dd9be4e2da5f52e8e73b59aae_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4880
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&c:\gusjvl.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-04_f5dbcc0dd9be4e2da5f52e8e73b59aae_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:876
- - 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:4296
- - \??\c:\gusjvl.exe
    c:\gusjvl.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-04_f5dbcc0dd9be4e2da5f52e8e73b59aae_elex_wannacry.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:4860
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\ykrnjujuc\oellx.dll",DoVirusScan c:\gusjvl.exe
      4⤵
      Loads dropped DLL
      System Location Discovery: System Language Discovery
      PID:1088
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 1088 -s 476
        5⤵
        Program crash
        
        PID:4848

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1088 -ip 1088
1⤵
PID:1300

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

gusjvl.exe

Path \??\c:\gusjvl.exe
Size 86KB
SHA256 e4f9caeb26a06826279821bcd58c9687fdd9e6f115058a524c95747e50a9e505
MD5 fbb26434cf74ad081d4c28195064812d
SHA1 c6c9f1627033157d1dc7ab2776416278d5a7531d
SHA512 63e5060b69f5e6235cb505a692b52d2764b2c54a2db259830a774ab2c49242637241db455ae5d8a8969c646a13955c1b5ee39706f1a2217b2d72d08d65d7228e
SSDEEP 1536:TSSABNx6vb4RoI47zzzzzzzzzvfxzVzNrzzzgzzzzzzzzzzzzzzzz6zzzdzzzzlx:eSABNx6vb4RoI4pyjHYLhal01UoPX1
TLSH
T1CF939D07ABA558E9E1206C70161D373593EF986F3B2497A38384FE4E9533DD1EC3618A
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

oellx.dll

Path \??\c:\ykrnjujuc\oellx.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/1088-9-0x0000000010000000-0x0000000010032000-memory.dmp

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memory/4860-6-0x0000000000400000-0x0000000000417000-memory.dmp

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

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memory/4880-2-0x0000000000400000-0x0000000000417000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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