bbb553eaf989f86c8840b4863bec868bd20a640cc34d431231925f9202954a49

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
16/10/2026, 23:59

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General

Target
2026-10-15_073e6142fb26fb858b08bc200be48c2b_coinminer_elex_wannacry.exe
Size 565KB
Sample261016-31te3aszcs
SHA256 bbb553eaf989f86c8840b4863bec868bd20a640cc34d431231925f9202954a49
MD5 073e6142fb26fb858b08bc200be48c2b
SHA1 101e443aaad387ecdfeaab3c1896eaf04e3ed48a
SHA512 b62a74a782356b23ec1d93bde94103ec1bd7814bf0a12a568c7fe7e033e30510a5082d2b4c729e2d49a647e160eae540fed5980402c7999144ad3a110c713ce9
SSDEEP 6144:CKhBqzw2w/0s/DbAgeonk7n7m8po+yUOKKNG0IxSjXKP+Ch:vqzw2wsEDbZ67fpLyUB/5qLCh
TLSH
T1ABC4AD1372E0C856E1A22A32CC7667B0DEF5BEE4D9358A1F5F843A0D1933E44A7157A3
MD5 SHA1 SHA512 SSDEEP TLSH

Score

9^/10

bootkit defense_evasion discovery execution persistence spyware stealer upx

Malware Config

Signatures

Custom signature

Detects executables containing base64 encoded User Agent 6 IoCs

resource	yara_rule
behavioral2/memory/4160-10-0x0000000010000000-0x0000000010052000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/4160-11-0x0000000010000000-0x0000000010052000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/4160-12-0x0000000010000000-0x0000000010052000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/4160-14-0x0000000010000000-0x0000000010052000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/4160-16-0x0000000010000000-0x0000000010052000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/4160-19-0x0000000010000000-0x0000000010052000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

Custom signature

UPX dump on OEP (original entry point) 4 IoCs

resource	yara_rule
behavioral2/memory/1592-0-0x0000000000400000-0x000000000048B000-memory.dmp	UPX
behavioral2/memory/1592-2-0x0000000000400000-0x000000000048B000-memory.dmp	UPX
behavioral2/files/0x000900000001af5f-3.dat	UPX
behavioral2/memory/6036-8-0x0000000000400000-0x000000000048B000-memory.dmp	UPX

Deletes itself 1 TTPs 1 IoCs

defense_evasion

File Deletion

T1070.004

pid	Process
6036	vwmqz.exe

Executes dropped EXE 2 IoCs

pid	Process
6036	vwmqz.exe
4160	ovssisuu.exe

Loads dropped DLL 1 IoCs

pid	Process
4160	ovssisuu.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-1-5-21-461973139-3212354679-1508698038-1000\Software\Microsoft\Windows\CurrentVersion\Run\dtfd = "c:\\Program Files\\alhiestjo\\ovssisuu.exe \"c:\\Program Files\\alhiestjo\\ovssisuu.dll\",DoAddToFavDlg"	ovssisuu.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)	\??\h:	ovssisuu.exe
File opened (read-only)	\??\i:	ovssisuu.exe
File opened (read-only)	\??\j:	ovssisuu.exe
File opened (read-only)	\??\k:	ovssisuu.exe
File opened (read-only)	\??\m:	ovssisuu.exe
File opened (read-only)	\??\r:	ovssisuu.exe
File opened (read-only)	\??\x:	ovssisuu.exe
File opened (read-only)	\??\d:	ovssisuu.exe
File opened (read-only)	\??\u:	ovssisuu.exe
File opened (read-only)	\??\v:	ovssisuu.exe
File opened (read-only)	\??\y:	ovssisuu.exe
File opened (read-only)	\??\n:	ovssisuu.exe
File opened (read-only)	\??\o:	ovssisuu.exe
File opened (read-only)	\??\q:	ovssisuu.exe
File opened (read-only)	\??\s:	ovssisuu.exe
File opened (read-only)	\??\t:	ovssisuu.exe
File opened (read-only)	\??\w:	ovssisuu.exe
File opened (read-only)	\??\a:	ovssisuu.exe
File opened (read-only)	\??\b:	ovssisuu.exe
File opened (read-only)	\??\g:	ovssisuu.exe
File opened (read-only)	\??\l:	ovssisuu.exe
File opened (read-only)	\??\p:	ovssisuu.exe
File opened (read-only)	\??\z:	ovssisuu.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	ovssisuu.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1592-0-0x0000000000400000-0x000000000048B000-memory.dmp	upx
behavioral2/memory/1592-2-0x0000000000400000-0x000000000048B000-memory.dmp	upx
behavioral2/files/0x000900000001af5f-3.dat	upx
behavioral2/memory/6036-8-0x0000000000400000-0x000000000048B000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	\??\c:\Program Files\alhiestjo	vwmqz.exe
File created	\??\c:\Program Files\alhiestjo\ovssisuu.dll	vwmqz.exe
File created	\??\c:\Program Files\alhiestjo\ovssisuu.exe	vwmqz.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
2864	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	ovssisuu.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain	ovssisuu.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	2026-10-15_073e6142fb26fb858b08bc200be48c2b_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	vwmqz.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ovssisuu.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
2864	cmd.exe
4644	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	ovssisuu.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	ovssisuu.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4644	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4160	ovssisuu.exe
4160	ovssisuu.exe
4160	ovssisuu.exe
4160	ovssisuu.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4160	ovssisuu.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1592	2026-10-15_073e6142fb26fb858b08bc200be48c2b_coinminer_elex_wannacry.exe
6036	vwmqz.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1592 wrote to memory of 2864	1592	2026-10-15_073e6142fb26fb858b08bc200be48c2b_coinminer_elex_wannacry.exe	89
PID 2864 wrote to memory of 4644	2864	cmd.exe	91
PID 2864 wrote to memory of 6036	2864	cmd.exe	92
PID 6036 wrote to memory of 4160	6036	vwmqz.exe	93

C:\Users\Admin\AppData\Local\Temp\2026-10-15_073e6142fb26fb858b08bc200be48c2b_coinminer_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-10-15_073e6142fb26fb858b08bc200be48c2b_coinminer_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1592
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\vwmqz.exe "C:\Users\Admin\AppData\Local\Temp\2026-10-15_073e6142fb26fb858b08bc200be48c2b_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:2864
- - 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:4644
- - C:\Users\Admin\AppData\Local\Temp\vwmqz.exe
    C:\Users\Admin\AppData\Local\Temp\\vwmqz.exe "C:\Users\Admin\AppData\Local\Temp\2026-10-15_073e6142fb26fb858b08bc200be48c2b_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:6036
  - - \??\c:\Program Files\alhiestjo\ovssisuu.exe
      "c:\Program Files\alhiestjo\ovssisuu.exe" "c:\Program Files\alhiestjo\ovssisuu.dll",DoAddToFavDlg C:\Users\Admin\AppData\Local\Temp\vwmqz.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:4160

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

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Downloads

ovssisuu.exe

Path C:\Program Files\alhiestjo\ovssisuu.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

vwmqz.exe

Path C:\Users\Admin\AppData\Local\Temp\vwmqz.exe
Size 565KB
SHA256 d013eb9f3f6671bf3d280b9ddaa9d4d6e01fa1cf0d48b9b13cecbad17798c94d
MD5 717c9f1489195ec9e312fb5d009bbad3
SHA1 c2f418f69cad94db7d6de3f7363b4623fe7a9bea
SHA512 9ee1437975c975b2ac77c3c43ea59f68187f68d6757b2fcebb95e7031fdec0c1eec4175ea4f47348525654a3037dff03ede7ae05f55c11f26cb92baf9588a93d
SSDEEP 6144:CKhBqzw2w/0s/DbAgeonk7n7m8po+yUOKKNG0IxSjXKP+CV:vqzw2wsEDbZ67fpLyUB/5qLCV
TLSH
T1A3C4AD1372E0C856E1A22A32CC7667B0DEF5BEE4D9358A1F5F843A0D1933E44A7157A3
MD5 SHA1 SHA512 SSDEEP TLSH

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ovssisuu.dll

Path \??\c:\Program Files\alhiestjo\ovssisuu.dll
Size 171KB
SHA256 b8521a9c80d900f3ee6a85db40bede3f70211b195f163ef75ec125f6a06c61b4
MD5 bf8c47eb583da13978295881e3fcd648
SHA1 8a3cc050d384e8786211606975f6a3b4db24b533
SHA512 8e479918ec413dd0b441edaa6486909287f874ea53e134b8265dbabe6394a9c4790141514f09ec172127b5386b0ec5a45b740044f9eecd32a048527ae8920116
SSDEEP 3072:R2Iz9CI8mUOtDDPwLkBLXLDFkKmvzXBpLHYmmO1QezRd7UcPa1xMjM7q:Rjz9X8mXGUXVPmr9mOzRd7UcPKoMu
TLSH
T1F10412B0F3F98759F0A716B70831597CC97638826329237FC2889A6EAC5442FF18D764
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/1592-2-0x0000000000400000-0x000000000048B000-memory.dmp

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memory/1592-0-0x0000000000400000-0x000000000048B000-memory.dmp

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memory/4160-10-0x0000000010000000-0x0000000010052000-memory.dmp

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memory/4160-11-0x0000000010000000-0x0000000010052000-memory.dmp

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memory/4160-13-0x0000000000C60000-0x0000000000C62000-memory.dmp

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memory/4160-12-0x0000000010000000-0x0000000010052000-memory.dmp

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memory/4160-14-0x0000000010000000-0x0000000010052000-memory.dmp

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memory/4160-16-0x0000000010000000-0x0000000010052000-memory.dmp

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memory/4160-19-0x0000000010000000-0x0000000010052000-memory.dmp

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memory/6036-8-0x0000000000400000-0x000000000048B000-memory.dmp

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