06c442bb3fe73d0fe7aeb78331bb74cd9e211bea1882cb355b6cc21e686ee0bb

General

Target
2026-08-20_984c0781f8d8cda5c85c59fd63d7a117_elex_wannacry.exe
Size 89KB
Sample260820-bgrctazwbt
SHA256 06c442bb3fe73d0fe7aeb78331bb74cd9e211bea1882cb355b6cc21e686ee0bb
MD5 984c0781f8d8cda5c85c59fd63d7a117
SHA1 b00dbd0f7bb22c66f036fbc361d4b9e0e4f36285
SHA512 d6093128870c2db6e1b1bc1b4bd7294549623e61a91ba4f2a7e0702f552c160f95a18aed3fa3d8c036da2961f8cdea637264249c3f46d2c8d6ed905f68dc60b6
SSDEEP 1536:TSSABNx6vb4RoI47zzzzzzzzzvfxzVzNrzzzgzzzzzzzzzzzzzzzz6zzzdzzzzl:eSABNx6vb4RoI4pyjHYLhal01UoPX
TLSH
T1BE939D47ABAA58E8E1206C70151D373597EF98AB3B2597A38384FE4D9133DC1EC3614E
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
4364	gswsdfu.exe

Executes dropped EXE 1 IoCs

pid	Process
4364	gswsdfu.exe

Loads dropped DLL 1 IoCs

pid	Process
5196	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
1300	cmd.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4460	5196	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	2026-08-20_984c0781f8d8cda5c85c59fd63d7a117_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	gswsdfu.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
3028	PING.EXE
1300	cmd.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
3028	PING.EXE

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
5612	2026-08-20_984c0781f8d8cda5c85c59fd63d7a117_elex_wannacry.exe
4364	gswsdfu.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 5612 wrote to memory of 1300	5612	2026-08-20_984c0781f8d8cda5c85c59fd63d7a117_elex_wannacry.exe	89
PID 1300 wrote to memory of 3028	1300	cmd.exe	91
PID 1300 wrote to memory of 4364	1300	cmd.exe	92
PID 4364 wrote to memory of 5196	4364	gswsdfu.exe	93

C:\Users\Admin\AppData\Local\Temp\2026-08-20_984c0781f8d8cda5c85c59fd63d7a117_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-20_984c0781f8d8cda5c85c59fd63d7a117_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5612
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&c:\gswsdfu.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-20_984c0781f8d8cda5c85c59fd63d7a117_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:1300
- - 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:3028
- - \??\c:\gswsdfu.exe
    c:\gswsdfu.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-20_984c0781f8d8cda5c85c59fd63d7a117_elex_wannacry.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:4364
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\dmkszfn\utcbd.dll",DoVirusScan c:\gswsdfu.exe
      4⤵
      Loads dropped DLL
      System Location Discovery: System Language Discovery
      PID:5196
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 5196 -s 476
        5⤵
        Program crash
        
        PID:4460

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 5196 -ip 5196
1⤵
PID:5024

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

utcbd.dll

Path \??\c:\dmkszfn\utcbd.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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gswsdfu.exe

Path \??\c:\gswsdfu.exe
Size 89KB
SHA256 946fe84910bb5cb3b12931b0960a23f18ca20decf7d6f821deecc0e4627cdb7e
MD5 bcb7dfd20c9489f489dc7b5c7769311f
SHA1 3bda88210f25beb2b8d5982c5c15d4288cb11369
SHA512 0869b591da96eefa0fe4814b44334ad005213ed52323c8cfc9cb940a23d3163920ffa0281698c18e5caa828d00677668aca2631d6c9d30b7b4d4b23c79728e0e
SSDEEP 1536:TSSABNx6vb4RoI47zzzzzzzzzvfxzVzNrzzzgzzzzzzzzzzzzzzzz6zzzdzzzzl0:eSABNx6vb4RoI4pyjHYLhal01UoPX4
TLSH
T14D938D07ABA958E9E1206C70151D373597EF98AB3B2597A38384FE4E9133DC1EC3614E
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/4364-6-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/5196-9-0x0000000010000000-0x0000000010032000-memory.dmp

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memory/5612-0-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/5612-2-0x0000000000400000-0x0000000000417000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads