9f1de4b228cf316d85fcd949e3e8e787c5aef1ee963c04a5078499dc37d59ea2

General

Target
2026-08-21_2831be70b51be224119dce2efaf67d97_elex_wannacry.exe
Size 85KB
Sample260822-v41dsaxbrc
SHA256 9f1de4b228cf316d85fcd949e3e8e787c5aef1ee963c04a5078499dc37d59ea2
MD5 2831be70b51be224119dce2efaf67d97
SHA1 7baff9e96a02910271efeb2e0a2e4345ee01e1b2
SHA512 35f0acc375b1b619f08893a401655ce0e3ec3f7efebc6d5883c157803ba7b77d20ddf3212db7f832b5dece1f6dc403a8804c5ce3be2a49a03a91d98521efd0bf
SSDEEP 1536:TSSABNx6vb4RoI47zzzzzzzzzvfxzVzNrzzzgzzzzzzzzzzzzzzzz6zzzdzzzzlo:eSABNx6vb4RoI4pyjHYLhal01UoPXM
TLSH
T1A1839D0BABAA58D9E1206C70162D377593EF946F3B2497A38384FE4D9533DC1EC3614A
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
4212	fcfqjyr.exe

Executes dropped EXE 1 IoCs

pid	Process
4212	fcfqjyr.exe

Loads dropped DLL 1 IoCs

pid	Process
1816	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
2180	cmd.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2956	1816	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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fcfqjyr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-08-21_2831be70b51be224119dce2efaf67d97_elex_wannacry.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
2180	cmd.exe
3424	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
3424	PING.EXE

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4748	2026-08-21_2831be70b51be224119dce2efaf67d97_elex_wannacry.exe
4212	fcfqjyr.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4748 wrote to memory of 2180	4748	2026-08-21_2831be70b51be224119dce2efaf67d97_elex_wannacry.exe	89
PID 2180 wrote to memory of 3424	2180	cmd.exe	91
PID 2180 wrote to memory of 4212	2180	cmd.exe	92
PID 4212 wrote to memory of 1816	4212	fcfqjyr.exe	93

C:\Users\Admin\AppData\Local\Temp\2026-08-21_2831be70b51be224119dce2efaf67d97_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-21_2831be70b51be224119dce2efaf67d97_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4748
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&c:\fcfqjyr.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-21_2831be70b51be224119dce2efaf67d97_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:2180
- - 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:3424
- - \??\c:\fcfqjyr.exe
    c:\fcfqjyr.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-21_2831be70b51be224119dce2efaf67d97_elex_wannacry.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:4212
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\fpfgncc\rldkf.dll",DoVirusScan c:\fcfqjyr.exe
      4⤵
      Loads dropped DLL
      System Location Discovery: System Language Discovery
      PID:1816
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 1816 -s 476
        5⤵
        Program crash
        
        PID:2956

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 1816 -ip 1816
1⤵
PID:5744

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

fcfqjyr.exe

Path \??\c:\fcfqjyr.exe
Size 85KB
SHA256 d921bd49e15117fd7f39e62bd921e5f43d180a7fff3493c11d2594c673418fc8
MD5 fb795143bb264b727d118099971891e1
SHA1 2af210c205e70461c3d2711ca066f1ce9a036f8b
SHA512 285208758ac4672dd6102ade90dbc7d8c1fac4a38e80c9bec505d232c0bb8589f0df06129939bfd0ffeb6a86ce727b5df0d09d120d337c2a00fa52ea1df388d4
SSDEEP 1536:TSSABNx6vb4RoI47zzzzzzzzzvfxzVzNrzzzgzzzzzzzzzzzzzzzz6zzzdzzzzlw:eSABNx6vb4RoI4pyjHYLhal01UoPXM
TLSH
T19D839D07ABAA58D9E1206C70162D377593EF986F3B2497A38344FE4D9533DC1EC3614A
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

rldkf.dll

Path \??\c:\fpfgncc\rldkf.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/1816-9-0x0000000010000000-0x0000000010032000-memory.dmp

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memory/4212-6-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/4748-0-0x0000000000400000-0x0000000000417000-memory.dmp

Download

memory/4748-2-0x0000000000400000-0x0000000000417000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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