4c8a88d0f7b53481a475c7baa455a7e97d58b85c49f08fdf401d293a2cdbc1f7

General

Target
2026-10-26_fb095b8ffdca0d87235eba8a0b69baf2_elex_wannacry.exe
Size 97KB
Sample261027-bref1azzfw
SHA256 4c8a88d0f7b53481a475c7baa455a7e97d58b85c49f08fdf401d293a2cdbc1f7
MD5 fb095b8ffdca0d87235eba8a0b69baf2
SHA1 0d496bf5a28e08b421bfc886e1b11e9115a0af95
SHA512 967f80da90b74e5036300bafafa5ae2c236db166ed877203e4c1e2f5fc450eb1996be3b6e3ef1187876684165c1140d6164250aeb389e77e9e924cf69a0902e0
SSDEEP 1536:VSSABNx6vb4RoI47zzzzzzzzzvfxzVzNrzzzgzzzzzzzzzzzzzzzz6zzzdzzzzl3:QSABNx6vb4RoI4pyjHYLhal01UoPX
TLSH
T108A39D1BABA948D9E1206C30152E377497FF946E3B18A7939348FE4D9433CD1EC3618A
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
2608	aegog.exe

Executes dropped EXE 1 IoCs

pid	Process
2608	aegog.exe

Loads dropped DLL 1 IoCs

pid	Process
4888	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
2056	cmd.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4968	4888	WerFault.exe	96

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	2026-10-26_fb095b8ffdca0d87235eba8a0b69baf2_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	aegog.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
2056	cmd.exe
4232	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4232	PING.EXE

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1856	2026-10-26_fb095b8ffdca0d87235eba8a0b69baf2_elex_wannacry.exe
2608	aegog.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1856 wrote to memory of 2056	1856	2026-10-26_fb095b8ffdca0d87235eba8a0b69baf2_elex_wannacry.exe	92
PID 2056 wrote to memory of 4232	2056	cmd.exe	94
PID 2056 wrote to memory of 2608	2056	cmd.exe	95
PID 2608 wrote to memory of 4888	2608	aegog.exe	96

C:\Users\Admin\AppData\Local\Temp\2026-10-26_fb095b8ffdca0d87235eba8a0b69baf2_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-10-26_fb095b8ffdca0d87235eba8a0b69baf2_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1856
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&c:\aegog.exe "C:\Users\Admin\AppData\Local\Temp\2026-10-26_fb095b8ffdca0d87235eba8a0b69baf2_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:2056
- - 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:4232
- - \??\c:\aegog.exe
    c:\aegog.exe "C:\Users\Admin\AppData\Local\Temp\2026-10-26_fb095b8ffdca0d87235eba8a0b69baf2_elex_wannacry.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2608
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\agbto\oropn.dll",DoVirusScan c:\aegog.exe
      4⤵
      Loads dropped DLL
      System Location Discovery: System Language Discovery
      PID:4888
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 4888 -s 476
        5⤵
        Program crash
        
        PID:4968

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 4888 -ip 4888
1⤵
PID:5240

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

aegog.exe

Path \??\c:\aegog.exe
Size 97KB
SHA256 261eb3c8c08041468711cde79a8c5d932a6eab48e7574a43d895a1219f70cc94
MD5 65b037fb3dc3eb0e4a7a933eb74fe481
SHA1 e6cbea1bc8e90510cf2e5572f462038b633915e8
SHA512 9b1fcb2cf7f2b21860199c5cbef7362e2548d713f53baad0cc661309f1bb3e70058f0ee8c58576932686acf57514186f2c0e4a1570ee89c1cbbec37e03a30d2d
SSDEEP 1536:VSSABNx6vb4RoI47zzzzzzzzzvfxzVzNrzzzgzzzzzzzzzzzzzzzz6zzzdzzzzlk:QSABNx6vb4RoI4pyjHYLhal01UoPXQ
TLSH
T19BA39D17ABA948D9E1206C70152E377497FF986E3B18A7939348EE4DD433CD1EC3618A
MD5 SHA1 SHA512 SSDEEP TLSH

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oropn.dll

Path \??\c:\agbto\oropn.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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memory/1856-0-0x0000000000400000-0x0000000000417000-memory.dmp

Download

memory/1856-2-0x0000000000400000-0x0000000000417000-memory.dmp

Download

memory/2608-6-0x0000000000400000-0x0000000000417000-memory.dmp

Download

memory/4888-9-0x0000000010000000-0x0000000010032000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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