0b50d95be56a42ce4997ad51ae2fb16a901a4dbe34f4f801a688e037df389d35

General

Target
2026-11-06_d499070654e8339a48ae5c1fb935b833_coinminer_elex_strictor_wannacry.exe
Size 132KB
Sample261107-17gzhavyhs
SHA256 0b50d95be56a42ce4997ad51ae2fb16a901a4dbe34f4f801a688e037df389d35
MD5 d499070654e8339a48ae5c1fb935b833
SHA1 802c1c897cf8901ce2f060ebf7ceec21d980b89a
SHA512 cbf1af5fa9263d407bd769fec16478383d0ea12737ffe667067e37389d27581da2a2fa9bb34bb7f3f5951a1782d6ed3a69a25506c734a4e56264e4554a5ba631
SSDEEP 1536:t3aaczXhtqkUla/NGVcJ/gAqcX0JMseuiGSeNVvDi0tMuUJJny3GM+9RP:Qauqc9rqzMseNoVv9EJFnM8R
TLSH
T117D3270273E6C154F1B25B30CA7246F04AABBCAAE971925F17407E5E7E32A50ED21737
MD5 SHA1 SHA512 SSDEEP TLSH

Score

9^/10

defense_evasion discovery execution upx

Malware Config

Signatures

Custom signature

UPX dump on OEP (original entry point) 4 IoCs

resource	yara_rule
behavioral2/memory/2908-0-0x0000000000400000-0x0000000000423000-memory.dmp	UPX
behavioral2/memory/2908-2-0x0000000000400000-0x0000000000423000-memory.dmp	UPX
behavioral2/files/0x001b00000000696b-3.dat	UPX
behavioral2/memory/4488-5-0x0000000000400000-0x0000000000423000-memory.dmp	UPX

Deletes itself 1 TTPs 1 IoCs

defense_evasion

File Deletion

T1070.004

pid	Process
4488	buwee.exe

Executes dropped EXE 1 IoCs

pid	Process
4488	buwee.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2908-0-0x0000000000400000-0x0000000000423000-memory.dmp	upx
behavioral2/memory/2908-2-0x0000000000400000-0x0000000000423000-memory.dmp	upx
behavioral2/files/0x001b00000000696b-3.dat	upx
behavioral2/memory/4488-5-0x0000000000400000-0x0000000000423000-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.

execution

Windows Command Shell

T1059.003

pid	Process
3512	cmd.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
5244	4488	WerFault.exe	91

System Location Discovery: System Language Discovery 1 TTPs 4 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	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	buwee.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-11-06_d499070654e8339a48ae5c1fb935b833_coinminer_elex_strictor_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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
3512	cmd.exe
3508	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
3508	PING.EXE

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2908	2026-11-06_d499070654e8339a48ae5c1fb935b833_coinminer_elex_strictor_wannacry.exe
4488	buwee.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2908 wrote to memory of 3512	2908	2026-11-06_d499070654e8339a48ae5c1fb935b833_coinminer_elex_strictor_wannacry.exe	88
PID 3512 wrote to memory of 3508	3512	cmd.exe	90
PID 3512 wrote to memory of 4488	3512	cmd.exe	91

C:\Users\Admin\AppData\Local\Temp\2026-11-06_d499070654e8339a48ae5c1fb935b833_coinminer_elex_strictor_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-11-06_d499070654e8339a48ae5c1fb935b833_coinminer_elex_strictor_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2908
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&c:\buwee.exe "C:\Users\Admin\AppData\Local\Temp\2026-11-06_d499070654e8339a48ae5c1fb935b833_coinminer_elex_strictor_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:3512
- - 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:3508
- - \??\c:\buwee.exe
    c:\buwee.exe "C:\Users\Admin\AppData\Local\Temp\2026-11-06_d499070654e8339a48ae5c1fb935b833_coinminer_elex_strictor_wannacry.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    PID:4488
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4488 -s 420
      4⤵
      Program crash
      PID:5244

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 4488 -ip 4488
1⤵
PID:4576

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

Indicator Removal

1

T1070

File Deletion

1

T1070.004

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

buwee.exe

Path \??\c:\buwee.exe
Size 132KB
SHA256 e48a32cc9fc5d94b93edf26957b70e007217912e5d1c95ab7e24d256f6dda256
MD5 80dd213984cc88b7a80d946fc5e1c276
SHA1 ee40a5ceec79e675a7e3abe9d3472cbb4e86c385
SHA512 1b3160801ffd22d9be7c2cfb5fa5589ae5b28ed41b1c57539e56e9ef688622146ec6306c1d833abd12d310d7d79aee587643db81ae724fd64e5b40c939f6add3
SSDEEP 1536:t3aaczXhtqkUla/NGVcJ/gAqcX0JMseuiGSeNVvDi0tMuUJJny3GM+9RO:Qauqc9rqzMseNoVv9EJFnM80
TLSH
T1EED3270273E6C154F1B25B30CA7246F04AABBCA9EA71925F17407E5E7E32A50ED21737
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/2908-0-0x0000000000400000-0x0000000000423000-memory.dmp

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memory/2908-2-0x0000000000400000-0x0000000000423000-memory.dmp

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memory/4488-5-0x0000000000400000-0x0000000000423000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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