acd137cd90730cb51d91f66e08f47dec6e746fdd93c03b64bdee0d2b3bc06c5f

General

Target
2026-08-04_f5aa60dbe3b690c338a9c2a9fe59ff54_elex_wannacry.exe
Size 85KB
Sample260804-qq43la1gpc
SHA256 acd137cd90730cb51d91f66e08f47dec6e746fdd93c03b64bdee0d2b3bc06c5f
MD5 f5aa60dbe3b690c338a9c2a9fe59ff54
SHA1 271ae6f0f5b428fea4ba1fc09aa0b880781d966d
SHA512 69f63678a203c1e2a5baa5580ad854181caebdc825a71f1bc9c36d1501eb8585b42a9f25e8d4a1923df5291c896018bc1277ddc8984d03e871a35e68f57d8709
SSDEEP 1536:TSSABNx6vb4RoI47zzzzzzzzzvfxzVzNrzzzgzzzzzzzzzzzzzzzz6zzzdzzzzln:eSABNx6vb4RoI4pyjHYLhal01UoPXz
TLSH
T196839C0BABA958E9E1206C70152D377593EF946F2B249BA38384FE4D9533DC1EC3614E
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
1000	uugbdswdn.exe

Executes dropped EXE 1 IoCs

pid	Process
1000	uugbdswdn.exe

Loads dropped DLL 1 IoCs

pid	Process
4524	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
4136	cmd.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2396	4524	WerFault.exe	94

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	2026-08-04_f5aa60dbe3b690c338a9c2a9fe59ff54_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	uugbdswdn.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
4136	cmd.exe
4340	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4340	PING.EXE

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1272	2026-08-04_f5aa60dbe3b690c338a9c2a9fe59ff54_elex_wannacry.exe
1000	uugbdswdn.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1272 wrote to memory of 4136	1272	2026-08-04_f5aa60dbe3b690c338a9c2a9fe59ff54_elex_wannacry.exe	90
PID 4136 wrote to memory of 4340	4136	cmd.exe	92
PID 4136 wrote to memory of 1000	4136	cmd.exe	93
PID 1000 wrote to memory of 4524	1000	uugbdswdn.exe	94

C:\Users\Admin\AppData\Local\Temp\2026-08-04_f5aa60dbe3b690c338a9c2a9fe59ff54_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-04_f5aa60dbe3b690c338a9c2a9fe59ff54_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1272
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&c:\uugbdswdn.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-04_f5aa60dbe3b690c338a9c2a9fe59ff54_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:4136
- - 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:4340
- - \??\c:\uugbdswdn.exe
    c:\uugbdswdn.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-04_f5aa60dbe3b690c338a9c2a9fe59ff54_elex_wannacry.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:1000
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\mbqpn\dgfcfsnoz.dll",DoVirusScan c:\uugbdswdn.exe
      4⤵
      Loads dropped DLL
      System Location Discovery: System Language Discovery
      PID:4524
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 4524 -s 476
        5⤵
        Program crash
        
        PID:2396

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 4524 -ip 4524
1⤵
PID:4568

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

dgfcfsnoz.dll

Path \??\c:\mbqpn\dgfcfsnoz.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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uugbdswdn.exe

Path \??\c:\uugbdswdn.exe
Size 86KB
SHA256 e2c7faca88bd7efa0eab2be470a9c71fb1728f73696f3074c1b2c78784af50de
MD5 49f25438a6e3bd9361c464e205dcc30c
SHA1 4c5c32b0b1c77beb034031adef4103c7dea4c673
SHA512 0e82d11b9a81f554bfa6a385b754dfc0de4d03e68be3c0560d85bc2c448ab680f8ae46baf7f6a259cb0dab442548125601b06162adf5592c3f889549a56b45a6
SSDEEP 1536:TSSABNx6vb4RoI47zzzzzzzzzvfxzVzNrzzzgzzzzzzzzzzzzzzzz6zzzdzzzzlU:eSABNx6vb4RoI4pyjHYLhal01UoPXY
TLSH
T1C6839C0BABA958D9E1206C70152D373593EF986F3B249BA38384FE4D9533DC1EC3614A
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/1000-6-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/1272-0-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/1272-2-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/4524-9-0x0000000010000000-0x0000000010032000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads