c687d6b29f6ec001aa7e2d135dfb690df31d0be950c12d4c5c255eb4ba836d8e

General

Target
2026-05-05_f8785ce4602bfd1011e1d30e2fbeebd1_elex_wannacry.exe
Size 325KB
Sample260505-e5h8wscv2m
SHA256 c687d6b29f6ec001aa7e2d135dfb690df31d0be950c12d4c5c255eb4ba836d8e
MD5 f8785ce4602bfd1011e1d30e2fbeebd1
SHA1 759b5ebefd77b52ffcfad6012a100e28f13dd3dd
SHA512 29152c360ea55e7b7fd0fba8efddc04078bddf458e5cadec3c20b4a539d6ea87d75056e1fc66c5ad74bbef0a7c2b1e5bd961d84b2d833a809e102589e3969435
SSDEEP 3072:FRoTSgQHfT5h+T3GuGYeO6bUT3JyDhkUAyLj6lgvqcOoyqsu/T2JS5073VLm:FRoSgWtkT3sO6bSZMhRrygvjpsASJV7s
TLSH
T13064AF1275D0C8EAC1C53973CD65B6F4E3E9CEE8C9329A6B17E43E4C7E3A5048712269
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

discovery

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
4880	uvlyr.exe

Executes dropped EXE 2 IoCs

pid	Process
4880	uvlyr.exe
4832	kjo.exe

Loads dropped DLL 1 IoCs

pid	Process
4832	kjo.exe

Drops file in Program Files directory 4 IoCs

description	ioc	Process
File opened for modification	\??\c:\Program Files\mbbci	uvlyr.exe
File created	\??\c:\Program Files\mbbci\kjoiu.dll	uvlyr.exe
File created	\??\c:\Program Files\mbbci\kjo.exe	uvlyr.exe
File opened for modification	\??\c:\Program Files\mbbci\kjo.exe	uvlyr.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
5228	4832	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	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	uvlyr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	kjo.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-05-05_f8785ce4602bfd1011e1d30e2fbeebd1_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
4636	cmd.exe
4784	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4784	PING.EXE

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4756	2026-05-05_f8785ce4602bfd1011e1d30e2fbeebd1_elex_wannacry.exe
4880	uvlyr.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4756 wrote to memory of 4636	4756	2026-05-05_f8785ce4602bfd1011e1d30e2fbeebd1_elex_wannacry.exe	85
PID 4636 wrote to memory of 4784	4636	cmd.exe	87
PID 4636 wrote to memory of 4880	4636	cmd.exe	88
PID 4880 wrote to memory of 4832	4880	uvlyr.exe	89

C:\Users\Admin\AppData\Local\Temp\2026-05-05_f8785ce4602bfd1011e1d30e2fbeebd1_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-05-05_f8785ce4602bfd1011e1d30e2fbeebd1_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4756
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\uvlyr.exe "C:\Users\Admin\AppData\Local\Temp\2026-05-05_f8785ce4602bfd1011e1d30e2fbeebd1_elex_wannacry.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:4636
- - 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:4784
- - C:\Users\Admin\AppData\Local\Temp\uvlyr.exe
    C:\Users\Admin\AppData\Local\Temp\\uvlyr.exe "C:\Users\Admin\AppData\Local\Temp\2026-05-05_f8785ce4602bfd1011e1d30e2fbeebd1_elex_wannacry.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - Drops file in Program Files directory
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:4880
  - - \??\c:\Program Files\mbbci\kjo.exe
      "c:\Program Files\mbbci\kjo.exe" "c:\Program Files\mbbci\kjoiu.dll",GetBMP C:\Users\Admin\AppData\Local\Temp\uvlyr.exe
      4⤵
      Executes dropped EXE
      Loads dropped DLL
      System Location Discovery: System Language Discovery
      PID:4832
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 4832 -s 416
        5⤵
        Program crash
        
        PID:5228

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4832 -ip 4832
1⤵
PID:3260

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

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

kjo.exe

Path C:\Program Files\mbbci\kjo.exe
Size 60KB
SHA256 6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910
MD5 889b99c52a60dd49227c5e485a016679
SHA1 8fa889e456aa646a4d0a4349977430ce5fa5e2d7
SHA512 08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641
SSDEEP 1536:H9ykYCTdiHQKrFXmw2RQln5IUmDjoX6+:HlMHprF2nRQln5I
TLSH
T127532AC2FA00C171D4A7563019778F1A5766AC13DB728ACB94B0B4A41EB3291AD3E5FF
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

kjoiu.dll

Path C:\Program Files\mbbci\kjoiu.dll
Size 143KB
SHA256 82f639d82b9dc63c5f40f0133ee5a57714ac0c5e8bac5315c17f10f1428c5d51
MD5 bc88904a03a9d430f94e2fde0d8ad935
SHA1 5a4aba30102223afd495b03ad820d24aff8e60be
SHA512 34501832a1d974df5e87fa888d8fbcf3fc3cac4164ba33aec1da91d4ef1f0d5a454415a67c284a86d3cbbc27e29eadf96c5407877a51fa1b2a177a084a782827
SSDEEP 1536:6UmjB4YGcf3L2bo6OJVyDLIjfK+sOiFd2BQG8dk0tJTaNlZffpgKNfL:fdYXSqEL8K+sP2BuHJTaNlhfVNT
TLSH
T1ECE312907C9F1965D02006B3069896791EFD453AE6EE57E37A6CF86B4305A16F30F00F
MD5 SHA1 SHA512 SSDEEP TLSH

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uvlyr.exe

Path C:\Users\Admin\AppData\Local\Temp\uvlyr.exe
Size 325KB
SHA256 7432a424da165bc07007da002ca21a83c10d656f45fa6f82650b6a9ea63d6372
MD5 7aeceebffbe882e41136da8ca7e7ccfe
SHA1 d12b8a10b366c2deedc2fd66c447fa8a0843b19b
SHA512 0ad400e5fcd6ed1f656539a0eac2ccb17f642285d3bb7a88acb6bb96ad9866e05125567a783eb0b54c1c7e4724523606bbc2281d192401e6b87ee12380244a9d
SSDEEP 3072:FRoTSgQHfT5h+T3GuGYeO6bUT3JyDhkUAyLj6lgvqcOoyqsu/T2JS5073VL9:FRoSgWtkT3sO6bSZMhRrygvjpsASJV77
TLSH
T14364AF1275D0C8EAC1C53973CD65B6F4E3E9CEE8C9329A6B17E43E4C7E3A5448702269
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/4756-0-0x0000000000400000-0x000000000044D000-memory.dmp

Download

memory/4756-2-0x0000000000400000-0x000000000044D000-memory.dmp

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memory/4832-14-0x0000000010000000-0x000000001006D000-memory.dmp

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memory/4832-15-0x0000000010047000-0x000000001006D000-memory.dmp

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memory/4880-11-0x0000000000400000-0x000000000044D000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads