d7b4e6425d65ee4ac1fe2278ba419c04cb35d27aa442dccbbf1973e80d4cb601

Analysis

max time kernel
148s
max time network
150s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260911-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
12/10/2026, 14:36

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General

Target
2026-10-11_a08838e2cf6adec46f30a4fa7969dadd_elex_wannacry.exe
Size 338KB
Sample261012-ryqevaxscv
SHA256 d7b4e6425d65ee4ac1fe2278ba419c04cb35d27aa442dccbbf1973e80d4cb601
MD5 a08838e2cf6adec46f30a4fa7969dadd
SHA1 0aa90d4dd22343c4e2a0fd99158f1a34c2c97e86
SHA512 fad7cbcdb5353f6a8f61ddfc3c696a05a59a695da5d9f4e322ed6e9ddbdcc89a2d3dc3d8138eb45efc49f90501b8d8c1b707ae03ca57be8c3b2215c4c80652a8
SSDEEP 6144:vhBqzX2tz0/YDbAgeonk7n7m8po+yUOKKNG0IxSjXKPDiSU:7qzX2twgDbZ67fpLyUB/5qui5
TLSH
T185749C1372E08856E1A22A32CC7667B0DEF5FFD4D9358A1F4F843A4D2933E04A6157A7
MD5 SHA1 SHA512 SSDEEP TLSH

Score

9^/10

bootkit defense_evasion discovery execution persistence spyware stealer

Malware Config

Signatures

Detects executables containing base64 encoded User Agent 5 IoCs

resource	yara_rule
behavioral2/memory/2032-13-0x0000000010000000-0x0000000010052000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/2032-15-0x0000000010000000-0x0000000010052000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/2032-16-0x0000000010000000-0x0000000010052000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/2032-18-0x0000000010000000-0x0000000010052000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/2032-21-0x0000000010000000-0x0000000010052000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

Detects executables packed with VMProtect. 5 IoCs

resource	yara_rule
behavioral2/memory/5548-0-0x0000000000400000-0x0000000000454000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral2/memory/5548-1-0x0000000000400000-0x0000000000454000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral2/memory/5548-3-0x0000000000400000-0x0000000000454000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral2/files/0x000600000001b85a-4.dat	INDICATOR_EXE_Packed_VMProtect
behavioral2/memory/1920-9-0x0000000000400000-0x0000000000454000-memory.dmp	INDICATOR_EXE_Packed_VMProtect

Deletes itself 1 TTPs 1 IoCs

defense_evasion

File Deletion

T1070.004

pid	Process
1920	znckp.exe

Executes dropped EXE 2 IoCs

pid	Process
1920	znckp.exe
2032	xzefbzd.exe

Loads dropped DLL 1 IoCs

pid	Process
2032	xzefbzd.exe

Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1404337215-1550464601-2805570857-1000\Software\Microsoft\Windows\CurrentVersion\Run\dtfd = "c:\\Program Files\\qdyow\\xzefbzd.exe \"c:\\Program Files\\qdyow\\xzefbzd.dll\",DoAddToFavDlg"	xzefbzd.exe

Enumerates connected drives 3 TTPs 23 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\y:	xzefbzd.exe
File opened (read-only)	\??\d:	xzefbzd.exe
File opened (read-only)	\??\g:	xzefbzd.exe
File opened (read-only)	\??\l:	xzefbzd.exe
File opened (read-only)	\??\o:	xzefbzd.exe
File opened (read-only)	\??\r:	xzefbzd.exe
File opened (read-only)	\??\u:	xzefbzd.exe
File opened (read-only)	\??\z:	xzefbzd.exe
File opened (read-only)	\??\a:	xzefbzd.exe
File opened (read-only)	\??\w:	xzefbzd.exe
File opened (read-only)	\??\i:	xzefbzd.exe
File opened (read-only)	\??\k:	xzefbzd.exe
File opened (read-only)	\??\n:	xzefbzd.exe
File opened (read-only)	\??\q:	xzefbzd.exe
File opened (read-only)	\??\t:	xzefbzd.exe
File opened (read-only)	\??\v:	xzefbzd.exe
File opened (read-only)	\??\x:	xzefbzd.exe
File opened (read-only)	\??\b:	xzefbzd.exe
File opened (read-only)	\??\h:	xzefbzd.exe
File opened (read-only)	\??\j:	xzefbzd.exe
File opened (read-only)	\??\m:	xzefbzd.exe
File opened (read-only)	\??\p:	xzefbzd.exe
File opened (read-only)	\??\s:	xzefbzd.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.

bootkit persistence

Bootkit

T1542.003

description	ioc	Process
File opened for modification	\??\PHYSICALDRIVE0	xzefbzd.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File created	\??\c:\Program Files\qdyow\xzefbzd.exe	znckp.exe
File opened for modification	\??\c:\Program Files\qdyow	znckp.exe
File created	\??\c:\Program Files\qdyow\xzefbzd.dll	znckp.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
1632	cmd.exe

Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs

The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

discovery

System Network Configuration Discovery

T1016

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname	xzefbzd.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain	xzefbzd.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.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-10-11_a08838e2cf6adec46f30a4fa7969dadd_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	znckp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	xzefbzd.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
1632	cmd.exe
4720	PING.EXE

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	xzefbzd.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	xzefbzd.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4720	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2032	xzefbzd.exe
2032	xzefbzd.exe
2032	xzefbzd.exe
2032	xzefbzd.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2032	xzefbzd.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
5548	2026-10-11_a08838e2cf6adec46f30a4fa7969dadd_elex_wannacry.exe
1920	znckp.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 5548 wrote to memory of 1632	5548	2026-10-11_a08838e2cf6adec46f30a4fa7969dadd_elex_wannacry.exe	89
PID 1632 wrote to memory of 4720	1632	cmd.exe	91
PID 1632 wrote to memory of 1920	1632	cmd.exe	92
PID 1920 wrote to memory of 2032	1920	znckp.exe	93

C:\Users\Admin\AppData\Local\Temp\2026-10-11_a08838e2cf6adec46f30a4fa7969dadd_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-10-11_a08838e2cf6adec46f30a4fa7969dadd_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5548
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\znckp.exe "C:\Users\Admin\AppData\Local\Temp\2026-10-11_a08838e2cf6adec46f30a4fa7969dadd_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:1632
- - 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:4720
- - C:\Users\Admin\AppData\Local\Temp\znckp.exe
    C:\Users\Admin\AppData\Local\Temp\\znckp.exe "C:\Users\Admin\AppData\Local\Temp\2026-10-11_a08838e2cf6adec46f30a4fa7969dadd_elex_wannacry.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - Drops file in Program Files directory
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:1920
  - - \??\c:\Program Files\qdyow\xzefbzd.exe
      "c:\Program Files\qdyow\xzefbzd.exe" "c:\Program Files\qdyow\xzefbzd.dll",DoAddToFavDlg C:\Users\Admin\AppData\Local\Temp\znckp.exe
      4⤵
      Executes dropped EXE
      Loads dropped DLL
      Adds Run key to start application
      Enumerates connected drives
      Writes to the Master Boot Record (MBR)
      Reads the TCP/IP host and domain name from the registry
      System Location Discovery: System Language Discovery
      Checks processor information in registry
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:2032

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

Windows Command Shell

T1059.003

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Pre-OS Boot

T1542

Bootkit

T1542.003

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Indicator Removal

T1070

File Deletion

T1070.004

Modify Registry

T1112

Pre-OS Boot

T1542

Bootkit

T1542.003

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

Remote System Discovery

T1018

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

System Network Configuration Discovery

T1016

Internet Connection Discovery

T1016.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

xzefbzd.exe

Path C:\Program Files\qdyow\xzefbzd.exe
Size 51KB
SHA256 ce6bb7eddc83762c708d4a41709ae00371dbdc09b2a380f28fa60b1edf917473
MD5 2e068ce2770fde8d1af4cb114b98df1f
SHA1 b6f9c2775babb025b22f915c3047aa627d07c312
SHA512 998d695eb56375e63df7db16740b89deb2cf630ccbead8bcf84a921ec6f4a4f9aef2755b703f7190f332b2008ebcc949363bcf8f392d7d07246c255b5073ed35
SSDEEP 1536:6G9yoVEpHP29I3fbcJboSUge5N+CnC/maz9Rh:8pv2mbcJboce58wvOR
TLSH
T137336C236A0A49B3DFE231780A9D7232526DD862075541F7A61057EAFD243E2EE743CF
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

znckp.exe

Path C:\Users\Admin\AppData\Local\Temp\znckp.exe
Size 339KB
SHA256 27cd05e0c2c9617611b80e21466e57de90b43ecc1c94f5567cef9c231dc58a99
MD5 4f9a77de450e492918a39de22bb8b140
SHA1 c616fabebfc6ce8aa6f954b783f924881172fb90
SHA512 78b3b73e788395214a6d831dcc8f80f60ee83aa87049326bbf15b2f349df39f37982b74dbf90eff4a6485f226f3314e102e86073c9622cd645b8fb7e3d8e6e0b
SSDEEP 6144:vhBqzX2tz0/YDbAgeonk7n7m8po+yUOKKNG0IxSjXKPDiST:7qzX2twgDbZ67fpLyUB/5quia
TLSH
T1BC749C1372E08856E1A22A32CC7667B0DEF5FFD4D9358A1F4F843A4D2933E04A6157A7
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

xzefbzd.dll

Path \??\c:\Program Files\qdyow\xzefbzd.dll
Size 171KB
SHA256 2378b799fdf1a7d6da78d3af182525fa4d8db4e4f159b41a9b7308c635ffb1ed
MD5 b4211ef0030ae55ff0e22e08aa1e76fc
SHA1 f6491f2bb63ac4ea05245dcc6f165330e5e2024d
SHA512 278e5f18ffe07bb67286f76b55418e4a97b2d6a42eab9a0c013c45076cf7db6ff01a7d938d1ae42f79446b83e1c4358ee452113b64ecdc78e3bf855996975de2
SSDEEP 3072:R2Iz9CI8mUOtDDPwLkBLXLDFkKmvzXBpLHYmmO1QezRd7UcPa1xMjM7R:Rjz9X8mXGUXVPmr9mOzRd7UcPKoMd
TLSH
T1920412B0F3F98B59F0A716770831597CC97639826329237FC2885A6EAC5442FF18D764
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/1920-9-0x0000000000400000-0x0000000000454000-memory.dmp

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memory/2032-12-0x0000000010000000-0x0000000010052000-memory.dmp

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memory/2032-14-0x0000000001710000-0x0000000001712000-memory.dmp

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memory/2032-13-0x0000000010000000-0x0000000010052000-memory.dmp

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memory/2032-15-0x0000000010000000-0x0000000010052000-memory.dmp

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memory/2032-16-0x0000000010000000-0x0000000010052000-memory.dmp

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memory/2032-18-0x0000000010000000-0x0000000010052000-memory.dmp

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memory/2032-21-0x0000000010000000-0x0000000010052000-memory.dmp

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memory/5548-3-0x0000000000400000-0x0000000000454000-memory.dmp

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memory/5548-1-0x0000000000400000-0x0000000000454000-memory.dmp

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memory/5548-0-0x0000000000400000-0x0000000000454000-memory.dmp

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