wastedlocker | 9fd59efa518e4ab927b62fbd007abe43501c1ef8a6d8d143a0d667f34cd4f953

Analysis

max time kernel
149s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20251016-en
resource tags

arch:x64arch:x86image:win10v2004-20251016-enlocale:en-usos:windows10-2004-x64system
submitted
14/11/2025, 19:56

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General

Target
2025-11-14_e5e899ba4a84df92dd7856b41fa956d3_elex_wastedlocker.exe
Size 56KB
Sample251114-ynqq7askbp
SHA256 9fd59efa518e4ab927b62fbd007abe43501c1ef8a6d8d143a0d667f34cd4f953
MD5 e5e899ba4a84df92dd7856b41fa956d3
SHA1 9d410ae1727d588d57db0417076d28e1b234ce66
SHA512 75c301ea933e6f6853e8c7a915d43da2296644f52282928e22c0a3c017b19f88d5425ae1e35fe36879395356b7abde6f68d6cf9e5e74522950cf04195be04185
SSDEEP 1536:PO88wNYmqdeBk7G7IhhqZKWVKz8NqUxVcSgJE/n:POmhqdeBk+nu
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

defense_evasion discovery execution exploit wastedlocker impact ransomware

Malware Config

Signatures

WastedLocker
Ransomware family seen in the wild since May 2020.
ransomware wastedlocker
Wastedlocker family
wastedlocker
Deletes shadow copies 3 TTPs
Ransomware often targets backup files to inhibit system recovery.
ransomware defense_evasion impact execution

File Deletion
T1070.004

Inhibit System Recovery
T1490

Windows Management Instrumentation
T1047
Renames multiple (128) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
ransomware

Possible privilege escalation attempt 2 IoCs

exploit

pid	Process
5036	takeown.exe
3228	icacls.exe

Executes dropped EXE 2 IoCs

pid	Process
4780	User:bin
320	Assistance.exe

Modifies file permissions 1 TTPs 2 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
5036	takeown.exe
3228	icacls.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\Assistance.exe	User:bin
File opened for modification	C:\Windows\SysWOW64\Assistance.exe	attrib.exe

System Location Discovery: System Language Discovery 1 TTPs 14 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	choice.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	User:bin
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	takeown.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Assistance.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	choice.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-11-14_e5e899ba4a84df92dd7856b41fa956d3_elex_wastedlocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	choice.exe

Interacts with shadow copies 3 TTPs 1 IoCs

Shadow copies are often targeted by ransomware to inhibit system recovery.

ransomware

File Deletion

T1070.004

Inhibit System Recovery

T1490

Direct Volume Access

T1006

pid	Process
5324	vssadmin.exe

NTFS ADS 1 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\User:bin	2025-11-14_e5e899ba4a84df92dd7856b41fa956d3_elex_wastedlocker.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeBackupPrivilege	3856	vssvc.exe
Token: SeRestorePrivilege	3856	vssvc.exe
Token: SeAuditPrivilege	3856	vssvc.exe

Suspicious use of WriteProcessMemory 38 IoCs

description	pid	Process	procid_target
PID 4608 wrote to memory of 4780	4608	2025-11-14_e5e899ba4a84df92dd7856b41fa956d3_elex_wastedlocker.exe	86
PID 4608 wrote to memory of 4780	4608	2025-11-14_e5e899ba4a84df92dd7856b41fa956d3_elex_wastedlocker.exe	86
PID 4608 wrote to memory of 4780	4608	2025-11-14_e5e899ba4a84df92dd7856b41fa956d3_elex_wastedlocker.exe	86
PID 4780 wrote to memory of 5324	4780	User:bin	88
PID 4780 wrote to memory of 5324	4780	User:bin	88
PID 4780 wrote to memory of 5036	4780	User:bin	92
PID 4780 wrote to memory of 5036	4780	User:bin	92
PID 4780 wrote to memory of 5036	4780	User:bin	92
PID 4780 wrote to memory of 3228	4780	User:bin	94
PID 4780 wrote to memory of 3228	4780	User:bin	94
PID 4780 wrote to memory of 3228	4780	User:bin	94
PID 320 wrote to memory of 1468	320	Assistance.exe	97
PID 320 wrote to memory of 1468	320	Assistance.exe	97
PID 320 wrote to memory of 1468	320	Assistance.exe	97
PID 1468 wrote to memory of 2132	1468	cmd.exe	99
PID 1468 wrote to memory of 2132	1468	cmd.exe	99
PID 1468 wrote to memory of 2132	1468	cmd.exe	99
PID 4780 wrote to memory of 2000	4780	User:bin	100
PID 4780 wrote to memory of 2000	4780	User:bin	100
PID 4780 wrote to memory of 2000	4780	User:bin	100
PID 4608 wrote to memory of 5432	4608	2025-11-14_e5e899ba4a84df92dd7856b41fa956d3_elex_wastedlocker.exe	102
PID 4608 wrote to memory of 5432	4608	2025-11-14_e5e899ba4a84df92dd7856b41fa956d3_elex_wastedlocker.exe	102
PID 4608 wrote to memory of 5432	4608	2025-11-14_e5e899ba4a84df92dd7856b41fa956d3_elex_wastedlocker.exe	102
PID 5432 wrote to memory of 5456	5432	cmd.exe	104
PID 5432 wrote to memory of 5456	5432	cmd.exe	104
PID 5432 wrote to memory of 5456	5432	cmd.exe	104
PID 2000 wrote to memory of 4208	2000	cmd.exe	105
PID 2000 wrote to memory of 4208	2000	cmd.exe	105
PID 2000 wrote to memory of 4208	2000	cmd.exe	105
PID 1468 wrote to memory of 5544	1468	cmd.exe	117
PID 1468 wrote to memory of 5544	1468	cmd.exe	117
PID 1468 wrote to memory of 5544	1468	cmd.exe	117
PID 2000 wrote to memory of 4980	2000	cmd.exe	119
PID 2000 wrote to memory of 4980	2000	cmd.exe	119
PID 2000 wrote to memory of 4980	2000	cmd.exe	119
PID 5432 wrote to memory of 820	5432	cmd.exe	118
PID 5432 wrote to memory of 820	5432	cmd.exe	118
PID 5432 wrote to memory of 820	5432	cmd.exe	118

Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
ransomware

Views/modifies file attributes 1 TTPs 3 IoCs

defense_evasion

Hidden Files and Directories

T1564.001

pid	Process
820	attrib.exe
5544	attrib.exe
4980	attrib.exe

C:\Users\Admin\AppData\Local\Temp\2025-11-14_e5e899ba4a84df92dd7856b41fa956d3_elex_wastedlocker.exe
"C:\Users\Admin\AppData\Local\Temp\2025-11-14_e5e899ba4a84df92dd7856b41fa956d3_elex_wastedlocker.exe"
1⤵
- System Location Discovery: System Language Discovery
- NTFS ADS
- Suspicious use of WriteProcessMemory
PID:4608
- C:\Users\Admin\AppData\Roaming\User:bin
  C:\Users\Admin\AppData\Roaming\User:bin -r
  2⤵
  - Executes dropped EXE
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4780
- - C:\Windows\system32\vssadmin.exe
    C:\Windows\system32\vssadmin.exe Delete Shadows /All /Quiet
    3⤵
    - Interacts with shadow copies
    PID:5324
- - C:\Windows\SysWOW64\takeown.exe
    C:\Windows\system32\takeown.exe /F C:\Windows\system32\Assistance.exe
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:5036
- - C:\Windows\SysWOW64\icacls.exe
    C:\Windows\system32\icacls.exe C:\Windows\system32\Assistance.exe /reset
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:3228
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c choice /t 10 /d y & attrib -h "C:\Users\Admin\AppData\Roaming\User" & del "C:\Users\Admin\AppData\Roaming\User"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2000
  - - C:\Windows\SysWOW64\choice.exe
      choice /t 10 /d y
      4⤵
      System Location Discovery: System Language Discovery
      PID:4208
  - - C:\Windows\SysWOW64\attrib.exe
      attrib -h "C:\Users\Admin\AppData\Roaming\User"
      4⤵
      System Location Discovery: System Language Discovery
      Views/modifies file attributes
      PID:4980
- C:\Windows\SysWOW64\cmd.exe
  cmd /c choice /t 10 /d y & attrib -h "C:\Users\Admin\AppData\Local\Temp\2025-11-14_e5e899ba4a84df92dd7856b41fa956d3_elex_wastedlocker.exe" & del "C:\Users\Admin\AppData\Local\Temp\2025-11-14_e5e899ba4a84df92dd7856b41fa956d3_elex_wastedlocker.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:5432
- - C:\Windows\SysWOW64\choice.exe
    choice /t 10 /d y
    3⤵
    - System Location Discovery: System Language Discovery
    PID:5456
- - C:\Windows\SysWOW64\attrib.exe
    attrib -h "C:\Users\Admin\AppData\Local\Temp\2025-11-14_e5e899ba4a84df92dd7856b41fa956d3_elex_wastedlocker.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Views/modifies file attributes
    PID:820

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3856

C:\Windows\SysWOW64\Assistance.exe
C:\Windows\SysWOW64\Assistance.exe -s
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:320
- C:\Windows\SysWOW64\cmd.exe
  cmd /c choice /t 10 /d y & attrib -h "C:\Windows\SysWOW64\Assistance.exe" & del "C:\Windows\SysWOW64\Assistance.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1468
- - C:\Windows\SysWOW64\choice.exe
    choice /t 10 /d y
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2132
- - C:\Windows\SysWOW64\attrib.exe
    attrib -h "C:\Windows\SysWOW64\Assistance.exe"
    3⤵
    - Drops file in System32 directory
    - System Location Discovery: System Language Discovery
    - Views/modifies file attributes
    PID:5544

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Windows Management Instrumentation

T1047

Persistence

Privilege Escalation

Defense Evasion

Direct Volume Access

T1006

File and Directory Permissions Modification

T1222

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Indicator Removal

T1070

File Deletion

T1070.004

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Inhibit System Recovery

T1490

Replay Monitor

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Downloads

User:bin

Path C:\Users\Admin\AppData\Roaming\User:bin
Size 56KB
SHA256 9fd59efa518e4ab927b62fbd007abe43501c1ef8a6d8d143a0d667f34cd4f953
MD5 e5e899ba4a84df92dd7856b41fa956d3
SHA1 9d410ae1727d588d57db0417076d28e1b234ce66
SHA512 75c301ea933e6f6853e8c7a915d43da2296644f52282928e22c0a3c017b19f88d5425ae1e35fe36879395356b7abde6f68d6cf9e5e74522950cf04195be04185
SSDEEP 1536:PO88wNYmqdeBk7G7IhhqZKWVKz8NqUxVcSgJE/n:POmhqdeBk+nu
MD5 SHA1 SHA512 SSDEEP

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