wastedlocker | 7a45a4ae68992e5be784b4a6da7acd98dc28281fe238f22c1f7c1d85a90d144a

General

Target

7a45a4ae68992e5be784b4a6da7acd98dc28281fe238f22c1f7c1d85a90d144a.bin.exe
Size

60KB
MD5

2000de399f4c0ad50a26780700ed6cac
SHA1

70c0d6b0a8485df01ed893a7919009f099591083
SHA256

7a45a4ae68992e5be784b4a6da7acd98dc28281fe238f22c1f7c1d85a90d144a
SHA512

378cfc46bb17be59975c29e19cb08d5c899eb088639b3446470e286c831ef4f71179316e0c8cbfad8bcc6d77c6dc5cb3ec96690a9a0a0646e69edcd3648e340b

Score

10^/10

wastedlocker discovery exploit persistence ransomware

Malware Config

Signatures

WastedLocker
Ransomware family seen in the wild since May 2020.
ransomware wastedlocker
Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
ransomware

File Deletion
T1107

Inhibit System Recovery
T1490
Executes dropped EXE 2 IoCs

Processes:

Rtl:binRtl.exe

pid process

2020 Rtl:bin
1536 Rtl.exe

pid	process
2020	Rtl:bin
1536	Rtl.exe

Modifies extensions of user files 3 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

Processes:

Rtl.exe

description	ioc	process
File opened for modification	C:\Users\Admin\Pictures\ConvertToClear.crw.rlhwasted	Rtl.exe
File created	C:\Users\Admin\Pictures\ConvertToClear.crw.rlhwasted_info	Rtl.exe
File renamed	C:\Users\Admin\Pictures\ConvertToClear.crw => C:\Users\Admin\Pictures\ConvertToClear.crw.rlhwasted	Rtl.exe

Possible privilege escalation attempt 2 IoCs
exploit

Processes:

takeown.exeicacls.exe

pid process

1448 takeown.exe
904 icacls.exe
Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

616 cmd.exe

pid	process
1448	takeown.exe
904	icacls.exe

pid	process
616	cmd.exe

Loads dropped DLL 2 IoCs

Processes:

7a45a4ae68992e5be784b4a6da7acd98dc28281fe238f22c1f7c1d85a90d144a.bin.exe

pid	process
292	7a45a4ae68992e5be784b4a6da7acd98dc28281fe238f22c1f7c1d85a90d144a.bin.exe
292	7a45a4ae68992e5be784b4a6da7acd98dc28281fe238f22c1f7c1d85a90d144a.bin.exe

Modifies file permissions 1 TTPs 2 IoCs
discovery

File Permissions Modification
T1222

Processes:

takeown.exeicacls.exe

pid process

1448 takeown.exe
904 icacls.exe
Drops file in System32 directory 2 IoCs

Processes:

attrib.exeRtl:bin

description ioc process

File opened for modification C:\Windows\SysWOW64\Rtl.exe attrib.exe
File opened for modification C:\Windows\SysWOW64\Rtl.exe Rtl:bin

pid	process
1448	takeown.exe
904	icacls.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\Rtl.exe	attrib.exe
File opened for modification	C:\Windows\SysWOW64\Rtl.exe	Rtl:bin

Modifies service 2 TTPs 5 IoCs

persistence

Modify Registry

T1112

Modify Existing Service

T1031

Processes:

vssvc.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VSS\Diag\SwProvider_{b5946137-7b9f-4925-af80-51abd60b20d5}	vssvc.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VSS\Diag\Registry Writer	vssvc.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VSS\Diag\COM+ REGDB Writer	vssvc.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VSS\Diag\ASR Writer	vssvc.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VSS\Diag\Shadow Copy Optimization Writer	vssvc.exe

Interacts with shadow copies 2 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
ransomware

File Deletion
T1107

Inhibit System Recovery
T1490

Processes:

vssadmin.exe

pid process

1968 vssadmin.exe

pid	process
1968	vssadmin.exe

NTFS ADS 1 IoCs

Processes:

7a45a4ae68992e5be784b4a6da7acd98dc28281fe238f22c1f7c1d85a90d144a.bin.exe

description	ioc	process
File opened for modification	C:\Users\Admin\AppData\Roaming\Rtl:bin	7a45a4ae68992e5be784b4a6da7acd98dc28281fe238f22c1f7c1d85a90d144a.bin.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

vssvc.exe

description pid process

Token: SeBackupPrivilege 1832 vssvc.exe
Token: SeRestorePrivilege 1832 vssvc.exe
Token: SeAuditPrivilege 1832 vssvc.exe

description	pid	process
Token: SeBackupPrivilege	1832	vssvc.exe
Token: SeRestorePrivilege	1832	vssvc.exe
Token: SeAuditPrivilege	1832	vssvc.exe

Suspicious use of WriteProcessMemory 52 IoCs

Processes:

7a45a4ae68992e5be784b4a6da7acd98dc28281fe238f22c1f7c1d85a90d144a.bin.exeRtl:binRtl.execmd.execmd.execmd.exe

description	pid	process	target process
PID 292 wrote to memory of 2020	292	7a45a4ae68992e5be784b4a6da7acd98dc28281fe238f22c1f7c1d85a90d144a.bin.exe	Rtl:bin
PID 292 wrote to memory of 2020	292	7a45a4ae68992e5be784b4a6da7acd98dc28281fe238f22c1f7c1d85a90d144a.bin.exe	Rtl:bin
PID 292 wrote to memory of 2020	292	7a45a4ae68992e5be784b4a6da7acd98dc28281fe238f22c1f7c1d85a90d144a.bin.exe	Rtl:bin
PID 292 wrote to memory of 2020	292	7a45a4ae68992e5be784b4a6da7acd98dc28281fe238f22c1f7c1d85a90d144a.bin.exe	Rtl:bin
PID 2020 wrote to memory of 1968	2020	Rtl:bin	vssadmin.exe
PID 2020 wrote to memory of 1968	2020	Rtl:bin	vssadmin.exe
PID 2020 wrote to memory of 1968	2020	Rtl:bin	vssadmin.exe
PID 2020 wrote to memory of 1968	2020	Rtl:bin	vssadmin.exe
PID 2020 wrote to memory of 1448	2020	Rtl:bin	takeown.exe
PID 2020 wrote to memory of 1448	2020	Rtl:bin	takeown.exe
PID 2020 wrote to memory of 1448	2020	Rtl:bin	takeown.exe
PID 2020 wrote to memory of 1448	2020	Rtl:bin	takeown.exe
PID 2020 wrote to memory of 904	2020	Rtl:bin	icacls.exe
PID 2020 wrote to memory of 904	2020	Rtl:bin	icacls.exe
PID 2020 wrote to memory of 904	2020	Rtl:bin	icacls.exe
PID 2020 wrote to memory of 904	2020	Rtl:bin	icacls.exe
PID 1536 wrote to memory of 1112	1536	Rtl.exe	cmd.exe
PID 1536 wrote to memory of 1112	1536	Rtl.exe	cmd.exe
PID 1536 wrote to memory of 1112	1536	Rtl.exe	cmd.exe
PID 1536 wrote to memory of 1112	1536	Rtl.exe	cmd.exe
PID 1112 wrote to memory of 844	1112	cmd.exe	choice.exe
PID 1112 wrote to memory of 844	1112	cmd.exe	choice.exe
PID 1112 wrote to memory of 844	1112	cmd.exe	choice.exe
PID 1112 wrote to memory of 844	1112	cmd.exe	choice.exe
PID 2020 wrote to memory of 816	2020	Rtl:bin	cmd.exe
PID 2020 wrote to memory of 816	2020	Rtl:bin	cmd.exe
PID 2020 wrote to memory of 816	2020	Rtl:bin	cmd.exe
PID 2020 wrote to memory of 816	2020	Rtl:bin	cmd.exe
PID 292 wrote to memory of 616	292	7a45a4ae68992e5be784b4a6da7acd98dc28281fe238f22c1f7c1d85a90d144a.bin.exe	cmd.exe
PID 292 wrote to memory of 616	292	7a45a4ae68992e5be784b4a6da7acd98dc28281fe238f22c1f7c1d85a90d144a.bin.exe	cmd.exe
PID 292 wrote to memory of 616	292	7a45a4ae68992e5be784b4a6da7acd98dc28281fe238f22c1f7c1d85a90d144a.bin.exe	cmd.exe
PID 292 wrote to memory of 616	292	7a45a4ae68992e5be784b4a6da7acd98dc28281fe238f22c1f7c1d85a90d144a.bin.exe	cmd.exe
PID 816 wrote to memory of 948	816	cmd.exe	choice.exe
PID 816 wrote to memory of 948	816	cmd.exe	choice.exe
PID 816 wrote to memory of 948	816	cmd.exe	choice.exe
PID 816 wrote to memory of 948	816	cmd.exe	choice.exe
PID 616 wrote to memory of 1560	616	cmd.exe	choice.exe
PID 616 wrote to memory of 1560	616	cmd.exe	choice.exe
PID 616 wrote to memory of 1560	616	cmd.exe	choice.exe
PID 616 wrote to memory of 1560	616	cmd.exe	choice.exe
PID 1112 wrote to memory of 1336	1112	cmd.exe	attrib.exe
PID 1112 wrote to memory of 1336	1112	cmd.exe	attrib.exe
PID 1112 wrote to memory of 1336	1112	cmd.exe	attrib.exe
PID 1112 wrote to memory of 1336	1112	cmd.exe	attrib.exe
PID 616 wrote to memory of 1232	616	cmd.exe	attrib.exe
PID 616 wrote to memory of 1232	616	cmd.exe	attrib.exe
PID 616 wrote to memory of 1232	616	cmd.exe	attrib.exe
PID 616 wrote to memory of 1232	616	cmd.exe	attrib.exe
PID 816 wrote to memory of 1212	816	cmd.exe	attrib.exe
PID 816 wrote to memory of 1212	816	cmd.exe	attrib.exe
PID 816 wrote to memory of 1212	816	cmd.exe	attrib.exe
PID 816 wrote to memory of 1212	816	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 3 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exeattrib.exeattrib.exe

pid process

1232 attrib.exe
1212 attrib.exe
1336 attrib.exe

pid	process
1232	attrib.exe
1212	attrib.exe
1336	attrib.exe

C:\Users\Admin\AppData\Local\Temp\7a45a4ae68992e5be784b4a6da7acd98dc28281fe238f22c1f7c1d85a90d144a.bin.exe
"C:\Users\Admin\AppData\Local\Temp\7a45a4ae68992e5be784b4a6da7acd98dc28281fe238f22c1f7c1d85a90d144a.bin.exe"
1⤵
- Loads dropped DLL
- NTFS ADS
- Suspicious use of WriteProcessMemory
PID:292

C:\Users\Admin\AppData\Roaming\Rtl:bin
C:\Users\Admin\AppData\Roaming\Rtl:bin -r
2⤵
- Executes dropped EXE
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:2020

C:\Windows\system32\vssadmin.exe
C:\Windows\system32\vssadmin.exe Delete Shadows /All /Quiet
3⤵
- Interacts with shadow copies
PID:1968

C:\Windows\SysWOW64\takeown.exe
C:\Windows\system32\takeown.exe /F C:\Windows\system32\Rtl.exe
3⤵
- Possible privilege escalation attempt
- Modifies file permissions
PID:1448

C:\Windows\SysWOW64\icacls.exe
C:\Windows\system32\icacls.exe C:\Windows\system32\Rtl.exe /reset
3⤵
- Possible privilege escalation attempt
- Modifies file permissions
PID:904

C:\Windows\SysWOW64\cmd.exe
cmd /c choice /t 10 /d y & attrib -h "C:\Users\Admin\AppData\Roaming\Rtl" & del "C:\Users\Admin\AppData\Roaming\Rtl"
3⤵
- Suspicious use of WriteProcessMemory
PID:816

C:\Windows\SysWOW64\choice.exe
choice /t 10 /d y
4⤵
PID:948

C:\Windows\SysWOW64\attrib.exe
attrib -h "C:\Users\Admin\AppData\Roaming\Rtl"
4⤵
- Views/modifies file attributes
PID:1212

C:\Windows\SysWOW64\cmd.exe
cmd /c choice /t 10 /d y & attrib -h "C:\Users\Admin\AppData\Local\Temp\7a45a4ae68992e5be784b4a6da7acd98dc28281fe238f22c1f7c1d85a90d144a.bin.exe" & del "C:\Users\Admin\AppData\Local\Temp\7a45a4ae68992e5be784b4a6da7acd98dc28281fe238f22c1f7c1d85a90d144a.bin.exe"
2⤵
- Deletes itself
- Suspicious use of WriteProcessMemory
PID:616

C:\Windows\SysWOW64\choice.exe
choice /t 10 /d y
3⤵
PID:1560

C:\Windows\SysWOW64\attrib.exe
attrib -h "C:\Users\Admin\AppData\Local\Temp\7a45a4ae68992e5be784b4a6da7acd98dc28281fe238f22c1f7c1d85a90d144a.bin.exe"
3⤵
- Views/modifies file attributes
PID:1232

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Modifies service
- Suspicious use of AdjustPrivilegeToken
PID:1832

C:\Windows\SysWOW64\Rtl.exe
C:\Windows\SysWOW64\Rtl.exe -s
1⤵
- Executes dropped EXE
- Modifies extensions of user files
- Suspicious use of WriteProcessMemory
PID:1536

C:\Windows\SysWOW64\cmd.exe
cmd /c choice /t 10 /d y & attrib -h "C:\Windows\SysWOW64\Rtl.exe" & del "C:\Windows\SysWOW64\Rtl.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:1112

C:\Windows\SysWOW64\choice.exe
choice /t 10 /d y
3⤵
PID:844

C:\Windows\SysWOW64\attrib.exe
attrib -h "C:\Windows\SysWOW64\Rtl.exe"
3⤵
- Drops file in System32 directory
- Views/modifies file attributes
PID:1336

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Modify Existing Service

1

T1031

Hidden Files and Directories

1

T1158

Privilege Escalation

Defense Evasion

File Deletion

2

T1107

File Permissions Modification

1

T1222

Modify Registry

1

T1112

Hidden Files and Directories

1

T1158

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Inhibit System Recovery

2

T1490

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Downloads

C:\Users\Admin\AppData\Roaming\Rtl:bin
MD5
2000de399f4c0ad50a26780700ed6cac

SHA1
70c0d6b0a8485df01ed893a7919009f099591083

SHA256
7a45a4ae68992e5be784b4a6da7acd98dc28281fe238f22c1f7c1d85a90d144a

SHA512
378cfc46bb17be59975c29e19cb08d5c899eb088639b3446470e286c831ef4f71179316e0c8cbfad8bcc6d77c6dc5cb3ec96690a9a0a0646e69edcd3648e340b

Download Submit
C:\Users\Admin\AppData\Roaming\Rtl:bin
MD5
2000de399f4c0ad50a26780700ed6cac

SHA1
70c0d6b0a8485df01ed893a7919009f099591083

SHA256
7a45a4ae68992e5be784b4a6da7acd98dc28281fe238f22c1f7c1d85a90d144a

SHA512
378cfc46bb17be59975c29e19cb08d5c899eb088639b3446470e286c831ef4f71179316e0c8cbfad8bcc6d77c6dc5cb3ec96690a9a0a0646e69edcd3648e340b

Download Submit
C:\Windows\SysWOW64\Rtl.exe
MD5
2000de399f4c0ad50a26780700ed6cac

SHA1
70c0d6b0a8485df01ed893a7919009f099591083

SHA256
7a45a4ae68992e5be784b4a6da7acd98dc28281fe238f22c1f7c1d85a90d144a

SHA512
378cfc46bb17be59975c29e19cb08d5c899eb088639b3446470e286c831ef4f71179316e0c8cbfad8bcc6d77c6dc5cb3ec96690a9a0a0646e69edcd3648e340b

Download Submit
C:\Windows\SysWOW64\Rtl.exe
MD5
2000de399f4c0ad50a26780700ed6cac

SHA1
70c0d6b0a8485df01ed893a7919009f099591083

SHA256
7a45a4ae68992e5be784b4a6da7acd98dc28281fe238f22c1f7c1d85a90d144a

SHA512
378cfc46bb17be59975c29e19cb08d5c899eb088639b3446470e286c831ef4f71179316e0c8cbfad8bcc6d77c6dc5cb3ec96690a9a0a0646e69edcd3648e340b

Download Submit
\Users\Admin\AppData\Roaming\Rtl
MD5
ff09f17c0d285ccd601ed1f04d96e7af

SHA1
ca9054160372b801e2b710a3d4a038839fa5c278

SHA256
2b2634c0100cbf43078ad2a4b4846901cde80694f8a0a76d12243b3a9436b0ba

SHA512
0082e6275fd57e57ed40335d7f046eb300c6cac586fa9c1df868584533a7b3edc47527dc2763ab4ff3e8e018ba42d8d7aa28060b999650f20f442417e3da7f83

Download Submit
\Users\Admin\AppData\Roaming\Rtl
MD5
ff09f17c0d285ccd601ed1f04d96e7af

SHA1
ca9054160372b801e2b710a3d4a038839fa5c278

SHA256
2b2634c0100cbf43078ad2a4b4846901cde80694f8a0a76d12243b3a9436b0ba

SHA512
0082e6275fd57e57ed40335d7f046eb300c6cac586fa9c1df868584533a7b3edc47527dc2763ab4ff3e8e018ba42d8d7aa28060b999650f20f442417e3da7f83

Download Submit
memory/616-13-0x0000000000000000-mapping.dmp

Download
memory/816-12-0x0000000000000000-mapping.dmp

Download
memory/844-11-0x0000000000000000-mapping.dmp

Download
memory/904-8-0x0000000000000000-mapping.dmp

Download
memory/948-14-0x0000000000000000-mapping.dmp

Download
memory/1112-10-0x0000000000000000-mapping.dmp

Download
memory/1212-18-0x0000000000000000-mapping.dmp

Download
memory/1232-17-0x0000000000000000-mapping.dmp

Download
memory/1336-16-0x0000000000000000-mapping.dmp

Download
memory/1448-6-0x0000000000000000-mapping.dmp

Download
memory/1560-15-0x0000000000000000-mapping.dmp

Download
memory/1968-4-0x0000000000000000-mapping.dmp

Download
memory/2020-2-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads