wastedlocker | 74d81c9744903ec860c96aa2140bae80dc09ad47d9cbd0fa634afe5f5b57a988

Resubmissions

20/06/2025, 04:43

250620-fcj56abn4w10

20/06/2025, 04:30

250620-e4s2psbl7110

Analysis

max time kernel
103s
max time network
123s
platform
windows10-2004_x64
resource
win10v2004-20250619-en
resource tags

arch:x64arch:x86image:win10v2004-20250619-enlocale:en-usos:windows10-2004-x64system
submitted
20/06/2025, 04:30

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General

Target
3228e5b91d747c15a3ad65e142a2e22a76439584cdaf75e85cb51822ea01d6e4.exe
Size 1.2MB
Sample250620-e4s2psbl71
SHA256 3228e5b91d747c15a3ad65e142a2e22a76439584cdaf75e85cb51822ea01d6e4
MD5 729cf41bcba0d5f794c4dbed884862ed
SHA1 1ef5d3ccc1aa1f06da71705f0f87a9c9132ab2c7
SHA512 f3576548c8d40f0a9570023ffc4cfe57767c0600132a97643d81f24f46dcb78514f508e0a8153bc77dfea85304e79ecad39c167f78dde4cccafebc51b78b5bf6
SSDEEP 1536:K9re6vuRlCiJAc8Siquv40MoypyWwgId0T1k6PbkQj3f94ENV:K9buRdAcgqu4lAp6kQrf94y
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

wastedlocker cryptone defense_evasion discovery execution exploit impact packer ransomware

Malware Config

Signatures

WastedLocker
Ransomware family seen in the wild since May 2020.
ransomware wastedlocker
Wastedlocker family
wastedlocker

CryptOne packer 1 IoCs

Detects CryptOne packer defined in NCC blogpost.

cryptone packer

resource	yara_rule
behavioral1/files/0x0006000000022792-7.dat	cryptone

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 (154) 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
6004	takeown.exe
5048	icacls.exe

Executes dropped EXE 2 IoCs

pid	Process
3820	Restore:bin
4780	Restore.exe

Modifies file permissions 1 TTPs 2 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
6004	takeown.exe
5048	icacls.exe

Drops file in System32 directory 2 IoCs

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

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	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3228e5b91d747c15a3ad65e142a2e22a76439584cdaf75e85cb51822ea01d6e4.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Restore:bin
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	takeown.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Restore.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	choice.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.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

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
5444	vssadmin.exe

NTFS ADS 1 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Restore:bin	3228e5b91d747c15a3ad65e142a2e22a76439584cdaf75e85cb51822ea01d6e4.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeBackupPrivilege	5916	vssvc.exe
Token: SeRestorePrivilege	5916	vssvc.exe
Token: SeAuditPrivilege	5916	vssvc.exe

Suspicious use of WriteProcessMemory 38 IoCs

description	pid	Process	procid_target
PID 3196 wrote to memory of 3820	3196	3228e5b91d747c15a3ad65e142a2e22a76439584cdaf75e85cb51822ea01d6e4.exe	85
PID 3196 wrote to memory of 3820	3196	3228e5b91d747c15a3ad65e142a2e22a76439584cdaf75e85cb51822ea01d6e4.exe	85
PID 3196 wrote to memory of 3820	3196	3228e5b91d747c15a3ad65e142a2e22a76439584cdaf75e85cb51822ea01d6e4.exe	85
PID 3820 wrote to memory of 5444	3820	Restore:bin	86
PID 3820 wrote to memory of 5444	3820	Restore:bin	86
PID 3820 wrote to memory of 6004	3820	Restore:bin	90
PID 3820 wrote to memory of 6004	3820	Restore:bin	90
PID 3820 wrote to memory of 6004	3820	Restore:bin	90
PID 3820 wrote to memory of 5048	3820	Restore:bin	92
PID 3820 wrote to memory of 5048	3820	Restore:bin	92
PID 3820 wrote to memory of 5048	3820	Restore:bin	92
PID 4780 wrote to memory of 3420	4780	Restore.exe	95
PID 4780 wrote to memory of 3420	4780	Restore.exe	95
PID 4780 wrote to memory of 3420	4780	Restore.exe	95
PID 3420 wrote to memory of 5568	3420	cmd.exe	97
PID 3420 wrote to memory of 5568	3420	cmd.exe	97
PID 3420 wrote to memory of 5568	3420	cmd.exe	97
PID 3820 wrote to memory of 3160	3820	Restore:bin	99
PID 3820 wrote to memory of 3160	3820	Restore:bin	99
PID 3820 wrote to memory of 3160	3820	Restore:bin	99
PID 3196 wrote to memory of 3192	3196	3228e5b91d747c15a3ad65e142a2e22a76439584cdaf75e85cb51822ea01d6e4.exe	101
PID 3196 wrote to memory of 3192	3196	3228e5b91d747c15a3ad65e142a2e22a76439584cdaf75e85cb51822ea01d6e4.exe	101
PID 3196 wrote to memory of 3192	3196	3228e5b91d747c15a3ad65e142a2e22a76439584cdaf75e85cb51822ea01d6e4.exe	101
PID 3160 wrote to memory of 3680	3160	cmd.exe	103
PID 3160 wrote to memory of 3680	3160	cmd.exe	103
PID 3160 wrote to memory of 3680	3160	cmd.exe	103
PID 3192 wrote to memory of 4480	3192	cmd.exe	104
PID 3192 wrote to memory of 4480	3192	cmd.exe	104
PID 3192 wrote to memory of 4480	3192	cmd.exe	104
PID 3420 wrote to memory of 2112	3420	cmd.exe	106
PID 3420 wrote to memory of 2112	3420	cmd.exe	106
PID 3420 wrote to memory of 2112	3420	cmd.exe	106
PID 3160 wrote to memory of 4000	3160	cmd.exe	107
PID 3160 wrote to memory of 4000	3160	cmd.exe	107
PID 3160 wrote to memory of 4000	3160	cmd.exe	107
PID 3192 wrote to memory of 3740	3192	cmd.exe	108
PID 3192 wrote to memory of 3740	3192	cmd.exe	108
PID 3192 wrote to memory of 3740	3192	cmd.exe	108

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
2112	attrib.exe
4000	attrib.exe
3740	attrib.exe

C:\Users\Admin\AppData\Local\Temp\3228e5b91d747c15a3ad65e142a2e22a76439584cdaf75e85cb51822ea01d6e4.exe
"C:\Users\Admin\AppData\Local\Temp\3228e5b91d747c15a3ad65e142a2e22a76439584cdaf75e85cb51822ea01d6e4.exe"
1⤵
- System Location Discovery: System Language Discovery
- NTFS ADS
- Suspicious use of WriteProcessMemory
PID:3196
- C:\Users\Admin\AppData\Roaming\Restore:bin
  C:\Users\Admin\AppData\Roaming\Restore:bin -r
  2⤵
  - Executes dropped EXE
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3820
- - C:\Windows\system32\vssadmin.exe
    C:\Windows\system32\vssadmin.exe Delete Shadows /All /Quiet
    3⤵
    - Interacts with shadow copies
    PID:5444
- - C:\Windows\SysWOW64\takeown.exe
    C:\Windows\system32\takeown.exe /F C:\Windows\system32\Restore.exe
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:6004
- - C:\Windows\SysWOW64\icacls.exe
    C:\Windows\system32\icacls.exe C:\Windows\system32\Restore.exe /reset
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:5048
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c choice /t 10 /d y & attrib -h "C:\Users\Admin\AppData\Roaming\Restore" & del "C:\Users\Admin\AppData\Roaming\Restore"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3160
  - - C:\Windows\SysWOW64\choice.exe
      choice /t 10 /d y
      4⤵
      System Location Discovery: System Language Discovery
      PID:3680
  - - C:\Windows\SysWOW64\attrib.exe
      attrib -h "C:\Users\Admin\AppData\Roaming\Restore"
      4⤵
      System Location Discovery: System Language Discovery
      Views/modifies file attributes
      PID:4000
- C:\Windows\SysWOW64\cmd.exe
  cmd /c choice /t 10 /d y & attrib -h "C:\Users\Admin\AppData\Local\Temp\3228e5b91d747c15a3ad65e142a2e22a76439584cdaf75e85cb51822ea01d6e4.exe" & del "C:\Users\Admin\AppData\Local\Temp\3228e5b91d747c15a3ad65e142a2e22a76439584cdaf75e85cb51822ea01d6e4.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3192
- - C:\Windows\SysWOW64\choice.exe
    choice /t 10 /d y
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4480
- - C:\Windows\SysWOW64\attrib.exe
    attrib -h "C:\Users\Admin\AppData\Local\Temp\3228e5b91d747c15a3ad65e142a2e22a76439584cdaf75e85cb51822ea01d6e4.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Views/modifies file attributes
    PID:3740

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:5916

C:\Windows\SysWOW64\Restore.exe
C:\Windows\SysWOW64\Restore.exe -s
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4780
- C:\Windows\SysWOW64\cmd.exe
  cmd /c choice /t 10 /d y & attrib -h "C:\Windows\SysWOW64\Restore.exe" & del "C:\Windows\SysWOW64\Restore.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3420
- - C:\Windows\SysWOW64\choice.exe
    choice /t 10 /d y
    3⤵
    - System Location Discovery: System Language Discovery
    PID:5568
- - C:\Windows\SysWOW64\attrib.exe
    attrib -h "C:\Windows\SysWOW64\Restore.exe"
    3⤵
    - Drops file in System32 directory
    - System Location Discovery: System Language Discovery
    - Views/modifies file attributes
    PID:2112

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

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Downloads

Restore:bin

Path C:\Users\Admin\AppData\Roaming\Restore:bin
Size 1.2MB
SHA256 3228e5b91d747c15a3ad65e142a2e22a76439584cdaf75e85cb51822ea01d6e4
MD5 729cf41bcba0d5f794c4dbed884862ed
SHA1 1ef5d3ccc1aa1f06da71705f0f87a9c9132ab2c7
SHA512 f3576548c8d40f0a9570023ffc4cfe57767c0600132a97643d81f24f46dcb78514f508e0a8153bc77dfea85304e79ecad39c167f78dde4cccafebc51b78b5bf6
SSDEEP 1536:K9re6vuRlCiJAc8Siquv40MoypyWwgId0T1k6PbkQj3f94ENV:K9buRdAcgqu4lAp6kQrf94y
MD5 SHA1 SHA512 SSDEEP

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memory/3196-0-0x00000000005B0000-0x00000000005C0000-memory.dmp

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memory/3196-1-0x0000000000400000-0x0000000000411000-memory.dmp

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memory/3196-186-0x0000000000400000-0x0000000000529000-memory.dmp

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memory/3196-187-0x0000000000400000-0x0000000000411000-memory.dmp

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memory/3820-9-0x0000000000400000-0x0000000000529000-memory.dmp

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memory/3820-10-0x0000000000400000-0x0000000000529000-memory.dmp

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memory/3820-185-0x0000000000400000-0x0000000000529000-memory.dmp

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memory/4780-14-0x0000000000400000-0x0000000000529000-memory.dmp

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memory/4780-15-0x0000000000400000-0x0000000000529000-memory.dmp

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memory/4780-183-0x0000000000400000-0x0000000000529000-memory.dmp

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Resubmissions

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads