887ddf3a830df8e0f6fe20b4dbe3d68da38a9c635bf0d1ae255957128bafd69e

General

Target
2026-08-02_d98762fcff1844c812a0416b776312e6_elex_wannacry.exe
Size 85KB
Sample260802-mqdnvsgr4w
SHA256 887ddf3a830df8e0f6fe20b4dbe3d68da38a9c635bf0d1ae255957128bafd69e
MD5 d98762fcff1844c812a0416b776312e6
SHA1 bf01ac0da06622e23692ff7aa38a941c2d911031
SHA512 09b56f1625200c5163e9ea039346db7f5285a7f797e2a8dbfac755837d2a70ce13160615e4f4b033ece32532d9cf408ab5ea34f59b674b111b0c03cbb83420ac
SSDEEP 1536:TSSABNx6vb4RoI47zzzzzzzzzvfxzVzNrzzzgzzzzzzzzzzzzzzzz6zzzdzzzzlt:eSABNx6vb4RoI4pyjHYLhal01UoPXZ
TLSH
T101839C0BABAA58E9E1206C70152D377593EF946F2B249BA38344FE4D9533DC1EC3614E
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
4084	pxcmj.exe

Executes dropped EXE 1 IoCs

pid	Process
4084	pxcmj.exe

Loads dropped DLL 1 IoCs

pid	Process
2568	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
3664	cmd.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2676	2568	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	2026-08-02_d98762fcff1844c812a0416b776312e6_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	pxcmj.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
3664	cmd.exe
4736	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4736	PING.EXE

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3340	2026-08-02_d98762fcff1844c812a0416b776312e6_elex_wannacry.exe
4084	pxcmj.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3340 wrote to memory of 3664	3340	2026-08-02_d98762fcff1844c812a0416b776312e6_elex_wannacry.exe	89
PID 3664 wrote to memory of 4736	3664	cmd.exe	91
PID 3664 wrote to memory of 4084	3664	cmd.exe	92
PID 4084 wrote to memory of 2568	4084	pxcmj.exe	93

C:\Users\Admin\AppData\Local\Temp\2026-08-02_d98762fcff1844c812a0416b776312e6_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-02_d98762fcff1844c812a0416b776312e6_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3340
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&c:\pxcmj.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-02_d98762fcff1844c812a0416b776312e6_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:3664
- - 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:4736
- - \??\c:\pxcmj.exe
    c:\pxcmj.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-02_d98762fcff1844c812a0416b776312e6_elex_wannacry.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:4084
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\yocfn\acfslmz.dll",DoVirusScan c:\pxcmj.exe
      4⤵
      Loads dropped DLL
      System Location Discovery: System Language Discovery
      PID:2568
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 2568 -s 476
        5⤵
        Program crash
        
        PID:2676

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 388 -p 2568 -ip 2568
1⤵
PID:2540

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

pxcmj.exe

Path \??\c:\pxcmj.exe
Size 85KB
SHA256 ebed73cae6f465440655b84bd766ea9261589934cb37f9e32ac30453ae99b822
MD5 0c0c534ff5944ef5857b83ef21e2a501
SHA1 7d987d2b6dbad7cd0da8fbdbb5193a0f0d83789a
SHA512 aa0e5f94072af952eeb7e4e920dcdf4692a258f8f6ad53808885184bbdb332f22b2020ac65d8919d94047974b52a6505caf78f10082158d01bc6de26ea6ca82c
SSDEEP 1536:TSSABNx6vb4RoI47zzzzzzzzzvfxzVzNrzzzgzzzzzzzzzzzzzzzz6zzzdzzzzlE:eSABNx6vb4RoI4pyjHYLhal01UoPXQ
TLSH
T1A5839D0BABA958D9E1206C70152D373597EF986F3B2497A38344FE4D9533DC1EC3614A
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

acfslmz.dll

Path \??\c:\yocfn\acfslmz.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/2568-9-0x0000000010000000-0x0000000010032000-memory.dmp

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memory/3340-0-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/3340-2-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/4084-6-0x0000000000400000-0x0000000000417000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads