0ddb0c6438ce7bd6bbbee9c6880d9fc9d6a68cf7735dd2b055a147791795ff01

General

Target
2026-08-10_8f91c425f399e12502df007cf48a61ea_elex_wannacry.exe
Size 86KB
Sample260810-3p99fa1fka
SHA256 0ddb0c6438ce7bd6bbbee9c6880d9fc9d6a68cf7735dd2b055a147791795ff01
MD5 8f91c425f399e12502df007cf48a61ea
SHA1 10798731adb1b31a084c934a5fc8e3bf5ca8673d
SHA512 85af6008cefb45363f390cc78a059f0790e77eaeee91f4907cf3a1cedf51287ab83abaef8994fb587b55a2872208fb8264f1d02a7dd06ebab34e67852b14a151
SSDEEP 1536:TSSABNx6vb4RoI47zzzzzzzzzvfxzVzNrzzzgzzzzzzzzzzzzzzzz6zzzdzzzzlq:eSABNx6vb4RoI4pyjHYLhal01UoPXG
TLSH
T1FC839C0BABAA58E9E120A870052D377593EF946F3B2597A38344FE4D9133DC1EC3614E
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
1976	dtnmaq.exe

Executes dropped EXE 1 IoCs

pid	Process
1976	dtnmaq.exe

Loads dropped DLL 1 IoCs

pid	Process
3516	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
5904	cmd.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4600	3516	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	2026-08-10_8f91c425f399e12502df007cf48a61ea_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	dtnmaq.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
5020	PING.EXE
5904	cmd.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
5020	PING.EXE

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2280	2026-08-10_8f91c425f399e12502df007cf48a61ea_elex_wannacry.exe
1976	dtnmaq.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2280 wrote to memory of 5904	2280	2026-08-10_8f91c425f399e12502df007cf48a61ea_elex_wannacry.exe	89
PID 5904 wrote to memory of 5020	5904	cmd.exe	91
PID 5904 wrote to memory of 1976	5904	cmd.exe	92
PID 1976 wrote to memory of 3516	1976	dtnmaq.exe	93

C:\Users\Admin\AppData\Local\Temp\2026-08-10_8f91c425f399e12502df007cf48a61ea_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-10_8f91c425f399e12502df007cf48a61ea_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2280
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&c:\dtnmaq.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-10_8f91c425f399e12502df007cf48a61ea_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:5904
- - 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:5020
- - \??\c:\dtnmaq.exe
    c:\dtnmaq.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-10_8f91c425f399e12502df007cf48a61ea_elex_wannacry.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:1976
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\drnfm\kyhfe.dll",DoVirusScan c:\dtnmaq.exe
      4⤵
      Loads dropped DLL
      System Location Discovery: System Language Discovery
      PID:3516
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 3516 -s 476
        5⤵
        Program crash
        
        PID:4600

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 3516 -ip 3516
1⤵
PID:2812

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

kyhfe.dll

Path \??\c:\drnfm\kyhfe.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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dtnmaq.exe

Path \??\c:\dtnmaq.exe
Size 86KB
SHA256 4347bab70a40bf652da695db83b73deb43a2b325553001a763a0fd5088f801b3
MD5 26b24db7b5abff8a8bee0189b77facd1
SHA1 f8afff0a9756290864906d896bc803d9cad437d4
SHA512 bd2b93cd875f9545852979d0b3b2600a50a45b71de28d75995356570d39b0ec58ef22047b97a84f540fe57a78c4c78617b17e6c3c51ba23d99f23765a61643b3
SSDEEP 1536:TSSABNx6vb4RoI47zzzzzzzzzvfxzVzNrzzzgzzzzzzzzzzzzzzzz6zzzdzzzzl4:eSABNx6vb4RoI4pyjHYLhal01UoPX0
TLSH
T160839D0BABAA58E9E1206870152D377593EF986F3B2597A38344FE4D9133DC1EC3614E
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/1976-6-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/2280-0-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/2280-2-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/3516-9-0x0000000010000000-0x0000000010032000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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