Analysis
- max time kernel
149s - max time network
148s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
07/08/2026, 03:58
Static task
static1
Behavioral task
behavioral1
Sample
2026-08-07_03b075fec205d2244c890d54491fa0ae_elex_wannacry.exe
Resource
win10v2004-20260513-en
General
- Target 2026-08-07_03b075fec205d2244c890d54491fa0ae_elex_wannacry.exe
- Size 91KB
- Sample260807-ejtgqszxbs
- SHA256 3ed417ad0184b5902d998338cd233ab150969e4b3bfa204da8209d83407deb2f
- MD5 03b075fec205d2244c890d54491fa0ae
- SHA1 46cc1172c932240747a039b2696f286374f889f9
- SHA512 d606ce92be0b6b00e4bc933e51f7215a8899932983c626c122d054c878edd43d9c1208df886cc2ec18035af02868e32d27f4bb0655053212587d748b4e1ae5aa
- SSDEEP 1536:SaK4RNx6nb4RoIw/vvBSxXsral6x2aE0zLve2yESXGTBcvt8UaKW40AEEod:xK4RNx6nb4RoIw/XBSeral6oaE0HGnvE
- TLSH T15A93AE47ABA50DD5E1204DF401AB7B36937654892F25A787D388DE0DA43EDC0DF362CA
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Detects Farfli Backdoor 5 IoCs
resource yara_rule behavioral1/memory/4976-11-0x0000000010000000-0x0000000010024000-memory.dmp family_farfli behavioral1/memory/4976-13-0x0000000010000000-0x0000000010024000-memory.dmp family_farfli behavioral1/memory/4976-14-0x0000000010000000-0x0000000010024000-memory.dmp family_farfli behavioral1/memory/4976-15-0x0000000010000000-0x0000000010024000-memory.dmp family_farfli behavioral1/memory/4976-16-0x0000000010000000-0x0000000010024000-memory.dmp family_farfli - Detects executables containing base64 encoded User Agent 5 IoCs
resource yara_rule behavioral1/memory/4976-11-0x0000000010000000-0x0000000010024000-memory.dmp INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent behavioral1/memory/4976-13-0x0000000010000000-0x0000000010024000-memory.dmp INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent behavioral1/memory/4976-14-0x0000000010000000-0x0000000010024000-memory.dmp INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent behavioral1/memory/4976-15-0x0000000010000000-0x0000000010024000-memory.dmp INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent behavioral1/memory/4976-16-0x0000000010000000-0x0000000010024000-memory.dmp INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent - UPX dump on OEP (original entry point) 8 IoCs
resource yara_rule behavioral1/memory/1140-7-0x0000000000400000-0x0000000000417000-memory.dmp UPX behavioral1/files/0x0008000000024432-8.dat UPX behavioral1/memory/4976-10-0x0000000010000000-0x0000000010024000-memory.dmp UPX behavioral1/memory/4976-11-0x0000000010000000-0x0000000010024000-memory.dmp UPX behavioral1/memory/4976-13-0x0000000010000000-0x0000000010024000-memory.dmp UPX behavioral1/memory/4976-14-0x0000000010000000-0x0000000010024000-memory.dmp UPX behavioral1/memory/4976-15-0x0000000010000000-0x0000000010024000-memory.dmp UPX behavioral1/memory/4976-16-0x0000000010000000-0x0000000010024000-memory.dmp UPX - Badlisted process makes network request 8 IoCs
Network request originating from process or tool commonly abused by malware.
flow pid Process 6 4976 rundll32.exe 9 4976 rundll32.exe 10 4976 rundll32.exe 11 4976 rundll32.exe 22 4976 rundll32.exe 24 4976 rundll32.exe 38 4976 rundll32.exe 42 4976 rundll32.exe - ACProtect 1.3x - 1.4x DLL software 1 IoCs
Detects file using ACProtect software.
resource yara_rule behavioral1/files/0x0008000000024432-8.dat acprotect - Deletes itself 1 IoCs
pid Process 1140 dfehs.exe - Executes dropped EXE 1 IoCs
pid Process 1140 dfehs.exe - Loads dropped DLL 1 IoCs
pid Process 4976 rundll32.exe - Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-204488895-2999877624-296153668-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\EvtMgr = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\xllgxoq\\tqwnpe.dll\",init" rundll32.exe - Enumerates connected drives 3 TTPs 23 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\w: rundll32.exe File opened (read-only) \??\y: rundll32.exe File opened (read-only) \??\a: rundll32.exe File opened (read-only) \??\b: rundll32.exe File opened (read-only) \??\e: rundll32.exe File opened (read-only) \??\m: rundll32.exe File opened (read-only) \??\o: rundll32.exe File opened (read-only) \??\q: rundll32.exe File opened (read-only) \??\s: rundll32.exe File opened (read-only) \??\z: rundll32.exe File opened (read-only) \??\h: rundll32.exe File opened (read-only) \??\i: rundll32.exe File opened (read-only) \??\j: rundll32.exe File opened (read-only) \??\l: rundll32.exe File opened (read-only) \??\t: rundll32.exe File opened (read-only) \??\k: rundll32.exe File opened (read-only) \??\n: rundll32.exe File opened (read-only) \??\r: rundll32.exe File opened (read-only) \??\x: rundll32.exe File opened (read-only) \??\g: rundll32.exe File opened (read-only) \??\p: rundll32.exe File opened (read-only) \??\u: rundll32.exe File opened (read-only) \??\v: rundll32.exe - Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs
Bootkits write to the MBR to gain persistence at a level below the operating system.
description ioc Process File opened for modification \??\PHYSICALDRIVE0 rundll32.exe -
resource yara_rule behavioral1/files/0x0008000000024432-8.dat upx behavioral1/memory/4976-10-0x0000000010000000-0x0000000010024000-memory.dmp upx behavioral1/memory/4976-11-0x0000000010000000-0x0000000010024000-memory.dmp upx behavioral1/memory/4976-13-0x0000000010000000-0x0000000010024000-memory.dmp upx behavioral1/memory/4976-14-0x0000000010000000-0x0000000010024000-memory.dmp upx behavioral1/memory/4976-15-0x0000000010000000-0x0000000010024000-memory.dmp upx behavioral1/memory/4976-16-0x0000000010000000-0x0000000010024000-memory.dmp upx - 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.
pid Process 3820 cmd.exe - 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.
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 dfehs.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2026-08-07_03b075fec205d2244c890d54491fa0ae_elex_wannacry.exe - System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs
Adversaries may check for Internet connectivity on compromised systems.
pid Process 3820 cmd.exe 4304 PING.EXE - Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString rundll32.exe - Runs ping.exe 1 TTPs 1 IoCs
pid Process 4304 PING.EXE - Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 4976 rundll32.exe 4976 rundll32.exe 4976 rundll32.exe 4976 rundll32.exe - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 4976 rundll32.exe - Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 4936 2026-08-07_03b075fec205d2244c890d54491fa0ae_elex_wannacry.exe 1140 dfehs.exe - Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 4936 wrote to memory of 3820 4936 2026-08-07_03b075fec205d2244c890d54491fa0ae_elex_wannacry.exe 86 PID 3820 wrote to memory of 4304 3820 cmd.exe 88 PID 3820 wrote to memory of 1140 3820 cmd.exe 89 PID 1140 wrote to memory of 4976 1140 dfehs.exe 90
Processes
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C:\Users\Admin\AppData\Local\Temp\2026-08-07_03b075fec205d2244c890d54491fa0ae_elex_wannacry.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-07_03b075fec205d2244c890d54491fa0ae_elex_wannacry.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4936 -
C:\Windows\SysWOW64\cmd.execmd.exe /c ping 127.0.0.1 -n 2&c:\dfehs.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-07_03b075fec205d2244c890d54491fa0ae_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:3820 -
C:\Windows\SysWOW64\PING.EXEping 127.0.0.1 -n 23⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
PID:4304
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\??\c:\dfehs.exec:\dfehs.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-07_03b075fec205d2244c890d54491fa0ae_elex_wannacry.exe"3⤵
- Deletes itself
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1140 -
\??\c:\windows\SysWOW64\rundll32.exec:\windows\system32\rundll32.exe "c:\xllgxoq\tqwnpe.dll",init c:\dfehs.exe4⤵
- Badlisted process makes network request
- Loads dropped DLL
- Adds Run key to start application
- Enumerates connected drives
- Writes to the Master Boot Record (MBR)
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4976
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Network
MITRE ATT&CK Enterprise v16
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Pre-OS Boot
1Bootkit
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\dfehs.exe
- Size 91KB
- SHA256 029f387150fc2a0428e10c9ed2c19ccd653c43983366ae1c0a259bb2b037b825
- MD5 e50611ffafdc4671090e0a7d96f6ce1d
- SHA1 9782d3f8bdaf047fc34e59c49a0a16e61b34141e
- SHA512 e0279a653ddbba28311469a267f4eb8a5366cb7f3e49222ba7b645b427c9230581cc95b6df1001df0da57e6fdbea3ec4d452e052bd7b0336d7ad180d67bfa706
- SSDEEP 1536:SaK4RNx6nb4RoIw/vvBSxXsral6x2aE0zLve2yESXGTBcvt8UaKW40AEEoM:xK4RNx6nb4RoIw/XBSeral6oaE0HGnvB
- TLSH T13493AE47ABA50DD5E1204DF401AB7B36537694892B25A787D388DE0DA43EDC0DF362CE
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path \??\c:\xllgxoq\tqwnpe.dll
- Size 46KB
- SHA256 b6bc7902da0250f6ca920b35b222f6a0fe62102caf05d2a1722c4d3b225a0a9e
- MD5 42fe886bcb6460f7c2a46e21ecac5da6
- SHA1 7d9a1c9fe17121cf61444da965f29e974a95ede2
- SHA512 3d1a7dc1d9ca8a4376302ba20df584ad59b98e0d3b18b06b22d7f5a455833ce124e412fc1922a3b704dcbafa31987cda3115c9a71dd6299683502cebae33567c
- SSDEEP 768:P60NIyOvlPSGxZ00FBsMT0fdB5h3vU7ExCClpoduUglNgLoR/C:P6e4lP5rvz1Vd8H/C
- TLSH T10023F15733A8577BC9E621FA3263BE142B357019CB3A83545CB9B6572C21C8D927930F
- MD5 SHA1 SHA512 SSDEEP TLSH