bb7513fd803cb066a08a86758d20ad5be8002b78013e657a7090698506554432

General

Target
2026-10-08_443ec4bd6892dfcb3b3f3e7e2b2387b5_elex_feodo_wannacry.exe
Size 96KB
Sample261009-tljsmsbt2t
SHA256 bb7513fd803cb066a08a86758d20ad5be8002b78013e657a7090698506554432
MD5 443ec4bd6892dfcb3b3f3e7e2b2387b5
SHA1 2249a120fe1b9ba3f19cca731d3599ce579a42f6
SHA512 e4868e5272d602f69b09057c036250bdb54d51561c6dfec84fb76755afb99adf56dc27d1e04ef55a70064a7d38f00f37bfbdb92e7870b480bd827ba45c5f0f0e
SSDEEP 1536:VSSABNx6vb4RoI47zzzzzzzzzvfxzVzNrzzzgzzzzzzzzzzzzzzzz6zzzdzzzzl0:QSABNx6vb4RoI4pyjHYLhal01UoPX
TLSH
T191A3AD0BABAA18D9E220AD31152D377597EF846E3B149B978348FE4D9433CC0EC3614A
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
1524	dvfxu.exe

Executes dropped EXE 1 IoCs

pid	Process
1524	dvfxu.exe

Loads dropped DLL 1 IoCs

pid	Process
5056	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
4752	cmd.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
368	5056	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	2026-10-08_443ec4bd6892dfcb3b3f3e7e2b2387b5_elex_feodo_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	dvfxu.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
4752	cmd.exe
1828	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
1828	PING.EXE

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2464	2026-10-08_443ec4bd6892dfcb3b3f3e7e2b2387b5_elex_feodo_wannacry.exe
1524	dvfxu.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2464 wrote to memory of 4752	2464	2026-10-08_443ec4bd6892dfcb3b3f3e7e2b2387b5_elex_feodo_wannacry.exe	87
PID 4752 wrote to memory of 1828	4752	cmd.exe	90
PID 4752 wrote to memory of 1524	4752	cmd.exe	93
PID 1524 wrote to memory of 5056	1524	dvfxu.exe	94

C:\Users\Admin\AppData\Local\Temp\2026-10-08_443ec4bd6892dfcb3b3f3e7e2b2387b5_elex_feodo_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-10-08_443ec4bd6892dfcb3b3f3e7e2b2387b5_elex_feodo_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2464
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&c:\dvfxu.exe "C:\Users\Admin\AppData\Local\Temp\2026-10-08_443ec4bd6892dfcb3b3f3e7e2b2387b5_elex_feodo_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:4752
- - 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:1828
- - \??\c:\dvfxu.exe
    c:\dvfxu.exe "C:\Users\Admin\AppData\Local\Temp\2026-10-08_443ec4bd6892dfcb3b3f3e7e2b2387b5_elex_feodo_wannacry.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:1524
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\vbzqdu\blgqz.dll",DoVirusScan c:\dvfxu.exe
      4⤵
      Loads dropped DLL
      System Location Discovery: System Language Discovery
      PID:5056
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 5056 -s 560
        5⤵
        Program crash
        
        PID:368

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 5056 -ip 5056
1⤵
PID:1640

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

dvfxu.exe

Path C:\dvfxu.exe
Size 96KB
SHA256 c57b178b3e35c01458fb5b290d5e3a636ec7cf7437753bfd7966a37f96dee07c
MD5 9e6f98b138c5bcba581369de7a81d4f9
SHA1 d9a596a4846e502ae18f3312c80c4ff3e5f2c036
SHA512 8ab852fe3e9fdb09641677194b59cb5d86bd1b5da8b52ad5c054450bdd04b9cd83d1d33439b9a8cbf659d00e6e42b9f93ccc365a07bd8e3a3f18faba228b0a05
SSDEEP 1536:VSSABNx6vb4RoI47zzzzzzzzzvfxzVzNrzzzgzzzzzzzzzzzzzzzz6zzzdzzzzl0:QSABNx6vb4RoI4pyjHYLhal01UoPXw
TLSH
T111A3AD0BABAA5CD9E120AD31156D3B7597EF846E3B1497978348FE4D9433CC0EC3614A
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

blgqz.dll

Path \??\c:\vbzqdu\blgqz.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/1524-6-0x0000000000400000-0x0000000000417000-memory.dmp

Download

memory/1524-8-0x0000000000400000-0x0000000000417000-memory.dmp

Download

memory/2464-0-0x0000000000400000-0x0000000000417000-memory.dmp

Download

memory/2464-2-0x0000000000400000-0x0000000000417000-memory.dmp

Download

memory/5056-11-0x0000000010000000-0x0000000010032000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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