b5ce273be953fc4eb8c63c4fc2434dc4e8112bfe4901e8462e1ae47cbfc3281c

Analysis

max time kernel
150s
max time network
148s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
28/07/2026, 23:18

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General

Target
2026-07-28_2dcb7621e58a6bc5aa95d0ff0277805d_coinminer_elex_wannacry.exe
Size 478KB
Sample260728-3acpmabp71
SHA256 b5ce273be953fc4eb8c63c4fc2434dc4e8112bfe4901e8462e1ae47cbfc3281c
MD5 2dcb7621e58a6bc5aa95d0ff0277805d
SHA1 6fdbfb7eeb835c1e5c90f857dfc71f5fa255d93e
SHA512 07697f7932f80038fcdc6c6a8dbc703b939dcf3eb0c57fbc5fb4820dd47ae0dfa9e556b3be881de11b1fe130c18506e555537f966bc03259bd28b201fa1ca055
SSDEEP 6144:g5u5eG44AeJ2ssftlVN+zBfGrSWm+omDAgQsSygGG2IszA+:Cu5eG4bsilNoGSJ+omDAdsWGLT8+
TLSH
T11BA4DF0CA6F9D205F0B76F729FBA1596463EBD5C1A30D38F528C844E4A71AE09D2532F
MD5 SHA1 SHA512 SSDEEP TLSH

Score

9^/10

bootkit discovery execution persistence spyware stealer upx

Malware Config

Signatures

Detects executables containing base64 encoded User Agent 4 IoCs

resource	yara_rule
behavioral2/memory/3660-12-0x0000000010000000-0x000000001004E000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/3660-9-0x0000000010000000-0x000000001004E000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/3660-13-0x0000000010000000-0x000000001004E000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/3660-18-0x0000000010000000-0x000000001004E000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

UPX dump on OEP (original entry point) 1 IoCs

resource	yara_rule
behavioral2/files/0x000a000000016cdf-1.dat	UPX

Deletes itself 1 IoCs

pid	Process
3356	ougkf.exe

Executes dropped EXE 2 IoCs

pid	Process
3356	ougkf.exe
3660	mvxlauvv.exe

Loads dropped DLL 1 IoCs

pid	Process
3660	mvxlauvv.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-1-5-21-552508041-2681165170-3229858294-1000\Software\Microsoft\Windows\CurrentVersion\Run\wfl = "c:\\Program Files\\yfqgofax\\mvxlauvv.exe \"c:\\Program Files\\yfqgofax\\anfta.dll\",WriteErrorLog"	mvxlauvv.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)	\??\s:	mvxlauvv.exe
File opened (read-only)	\??\u:	mvxlauvv.exe
File opened (read-only)	\??\x:	mvxlauvv.exe
File opened (read-only)	\??\d:	mvxlauvv.exe
File opened (read-only)	\??\j:	mvxlauvv.exe
File opened (read-only)	\??\m:	mvxlauvv.exe
File opened (read-only)	\??\n:	mvxlauvv.exe
File opened (read-only)	\??\q:	mvxlauvv.exe
File opened (read-only)	\??\v:	mvxlauvv.exe
File opened (read-only)	\??\w:	mvxlauvv.exe
File opened (read-only)	\??\g:	mvxlauvv.exe
File opened (read-only)	\??\r:	mvxlauvv.exe
File opened (read-only)	\??\t:	mvxlauvv.exe
File opened (read-only)	\??\z:	mvxlauvv.exe
File opened (read-only)	\??\a:	mvxlauvv.exe
File opened (read-only)	\??\k:	mvxlauvv.exe
File opened (read-only)	\??\l:	mvxlauvv.exe
File opened (read-only)	\??\y:	mvxlauvv.exe
File opened (read-only)	\??\b:	mvxlauvv.exe
File opened (read-only)	\??\h:	mvxlauvv.exe
File opened (read-only)	\??\i:	mvxlauvv.exe
File opened (read-only)	\??\o:	mvxlauvv.exe
File opened (read-only)	\??\p:	mvxlauvv.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	mvxlauvv.exe

UPX packed file 1 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/files/0x000a000000016cdf-1.dat	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	\??\c:\Program Files\yfqgofax	ougkf.exe
File created	\??\c:\Program Files\yfqgofax\anfta.dll	ougkf.exe
File created	\??\c:\Program Files\yfqgofax\mvxlauvv.exe	ougkf.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
3592	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.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mvxlauvv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-07-28_2dcb7621e58a6bc5aa95d0ff0277805d_coinminer_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	ougkf.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
3592	cmd.exe
4080	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	mvxlauvv.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	mvxlauvv.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4080	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3660	mvxlauvv.exe
3660	mvxlauvv.exe
3660	mvxlauvv.exe
3660	mvxlauvv.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3660	mvxlauvv.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4224	2026-07-28_2dcb7621e58a6bc5aa95d0ff0277805d_coinminer_elex_wannacry.exe
3356	ougkf.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4224 wrote to memory of 3592	4224	2026-07-28_2dcb7621e58a6bc5aa95d0ff0277805d_coinminer_elex_wannacry.exe	89
PID 3592 wrote to memory of 4080	3592	cmd.exe	91
PID 3592 wrote to memory of 3356	3592	cmd.exe	92
PID 3356 wrote to memory of 3660	3356	ougkf.exe	93

C:\Users\Admin\AppData\Local\Temp\2026-07-28_2dcb7621e58a6bc5aa95d0ff0277805d_coinminer_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-07-28_2dcb7621e58a6bc5aa95d0ff0277805d_coinminer_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4224
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\ougkf.exe "C:\Users\Admin\AppData\Local\Temp\2026-07-28_2dcb7621e58a6bc5aa95d0ff0277805d_coinminer_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:3592
- - 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:4080
- - C:\Users\Admin\AppData\Local\Temp\ougkf.exe
    C:\Users\Admin\AppData\Local\Temp\\ougkf.exe "C:\Users\Admin\AppData\Local\Temp\2026-07-28_2dcb7621e58a6bc5aa95d0ff0277805d_coinminer_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:3356
  - - \??\c:\Program Files\yfqgofax\mvxlauvv.exe
      "c:\Program Files\yfqgofax\mvxlauvv.exe" "c:\Program Files\yfqgofax\anfta.dll",WriteErrorLog C:\Users\Admin\AppData\Local\Temp\ougkf.exe
      4⤵
      Executes dropped EXE
      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:3660

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

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

mvxlauvv.exe

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

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ougkf.exe

Path C:\Users\Admin\AppData\Local\Temp\ougkf.exe
Size 478KB
SHA256 5846ce3749099ca4170fa46b9b6e9176874819c0aee987b8525234116e628ca5
MD5 9e78f57191d6e579d2587cf0d08fe5c5
SHA1 202eb21421fa2fa4a7880c2b94724b6134449cf4
SHA512 1d19874191ae3ec57e59c64619ff841a700be38bfaebd32e022e617f9e6c857054524f0dfc8d70936c5e3269cde283840707218f12d466346c22736d263baaf9
SSDEEP 6144:g5u5eG44AeJ2ssftlVN+zBfGrSWm+omDAgQsSygGG2IszAI:Cu5eG4bsilNoGSJ+omDAdsWGLT8I
TLSH
T114A4DF0CA6F9D205F0B76F729FBA1596463EBD5C1A30D38F528C844E4A71AE09D2532F
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

anfta.dll

Path \??\c:\Program Files\yfqgofax\anfta.dll
Size 181KB
SHA256 97fddbc8e48929725d2f2b81eb315811945da70cc6e52275518bfdf1fb75a4d9
MD5 c437fc6cebfb94a6953db6489cd5071e
SHA1 c5f98f8c2a6e6d0d4285bc0eaf740bc1aca3d87d
SHA512 0a55a47d94cf967d0b31d70d1c83369d8ab69bb6e884acd792e47765fd10d9cbab011ec7ef767792524d3912f5ada4e1d66014a606054f846abee551494f67ad
SSDEEP 3072:mVOVK9crNdChBpaHwHjHDgy5fpjUthLI60ttH8Ra4KvqDUhYJ9f6zfvLsSie:gq5dkpaHwH7kyzjUCttH8Ra7vNQoznLN
TLSH
T105041211DDB1477EC18211F482FE7244B83B73315BAE8AAB75331ABDAEA95735433902
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/3660-7-0x0000000010000000-0x000000001004E000-memory.dmp

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memory/3660-8-0x00000000017E0000-0x00000000017E2000-memory.dmp

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memory/3660-12-0x0000000010000000-0x000000001004E000-memory.dmp

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memory/3660-9-0x0000000010000000-0x000000001004E000-memory.dmp

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memory/3660-14-0x00000000017E0000-0x00000000017E2000-memory.dmp

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memory/3660-13-0x0000000010000000-0x000000001004E000-memory.dmp

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memory/3660-18-0x0000000010000000-0x000000001004E000-memory.dmp

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