wastedlocker | 37a30621364d3083424b24b0255fc8f5752d88c381600d840574e551c284fb6e

General

Target

37a30621364d3083424b24b0255fc8f5752d88c381600d840574e551c284fb6e.bin.exe
Size

58KB
MD5

6d9ad19726c79c0f7b4bf91475452e2d
SHA1

e6d92f05926c01ed146dbfdf02500c234ccf0888
SHA256

37a30621364d3083424b24b0255fc8f5752d88c381600d840574e551c284fb6e
SHA512

87923aeb9b0d409975dd0d364a6c12b57afffde944ccb6707cff134d456f6b8e9c1753b63ff7ffcbc0d389c37a1cff1cadc5075e4ecb503ebcabeb3f631b5eb3

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:

Co:binCo.exe

pid process

1860 Co:bin
1480 Co.exe

pid	process
1860	Co:bin
1480	Co.exe

Modifies extensions of user files 12 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

Processes:

Co.exe

description	ioc	process
File created	C:\Users\Admin\Pictures\WaitGroup.tif.garminwasted_info	Co.exe
File renamed	C:\Users\Admin\Pictures\WaitGroup.tif => C:\Users\Admin\Pictures\WaitGroup.tif.garminwasted	Co.exe
File renamed	C:\Users\Admin\Pictures\DisconnectInstall.raw => C:\Users\Admin\Pictures\DisconnectInstall.raw.garminwasted	Co.exe
File renamed	C:\Users\Admin\Pictures\JoinUninstall.tiff => C:\Users\Admin\Pictures\JoinUninstall.tiff.garminwasted	Co.exe
File opened for modification	C:\Users\Admin\Pictures\JoinUninstall.tiff.garminwasted	Co.exe
File renamed	C:\Users\Admin\Pictures\SearchSet.tiff => C:\Users\Admin\Pictures\SearchSet.tiff.garminwasted	Co.exe
File opened for modification	C:\Users\Admin\Pictures\SearchSet.tiff.garminwasted	Co.exe
File opened for modification	C:\Users\Admin\Pictures\WaitGroup.tif.garminwasted	Co.exe
File created	C:\Users\Admin\Pictures\DisconnectInstall.raw.garminwasted_info	Co.exe
File opened for modification	C:\Users\Admin\Pictures\DisconnectInstall.raw.garminwasted	Co.exe
File created	C:\Users\Admin\Pictures\JoinUninstall.tiff.garminwasted_info	Co.exe
File created	C:\Users\Admin\Pictures\SearchSet.tiff.garminwasted_info	Co.exe

Possible privilege escalation attempt 2 IoCs
exploit

Processes:

takeown.exeicacls.exe

pid process

1780 takeown.exe
1688 icacls.exe
Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1712 cmd.exe

pid	process
1780	takeown.exe
1688	icacls.exe

pid	process
1712	cmd.exe

Loads dropped DLL 2 IoCs

Processes:

37a30621364d3083424b24b0255fc8f5752d88c381600d840574e551c284fb6e.bin.exe

pid	process
300	37a30621364d3083424b24b0255fc8f5752d88c381600d840574e551c284fb6e.bin.exe
300	37a30621364d3083424b24b0255fc8f5752d88c381600d840574e551c284fb6e.bin.exe

Modifies file permissions 1 TTPs 2 IoCs
discovery

File Permissions Modification
T1222

Processes:

takeown.exeicacls.exe

pid process

1780 takeown.exe
1688 icacls.exe
Drops file in System32 directory 2 IoCs

Processes:

Co:binattrib.exe

description ioc process

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

pid	process
1780	takeown.exe
1688	icacls.exe

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

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\Shadow Copy Optimization Writer	vssvc.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VSS\Diag\Registry Writer	vssvc.exe
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\COM+ REGDB Writer	vssvc.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VSS\Diag\ASR 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

1848 vssadmin.exe

pid	process
1848	vssadmin.exe

NTFS ADS 1 IoCs

Processes:

37a30621364d3083424b24b0255fc8f5752d88c381600d840574e551c284fb6e.bin.exe

description	ioc	process
File opened for modification	C:\Users\Admin\AppData\Roaming\Co:bin	37a30621364d3083424b24b0255fc8f5752d88c381600d840574e551c284fb6e.bin.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

vssvc.exe

description pid process

Token: SeBackupPrivilege 2016 vssvc.exe
Token: SeRestorePrivilege 2016 vssvc.exe
Token: SeAuditPrivilege 2016 vssvc.exe

description	pid	process
Token: SeBackupPrivilege	2016	vssvc.exe
Token: SeRestorePrivilege	2016	vssvc.exe
Token: SeAuditPrivilege	2016	vssvc.exe

Suspicious use of WriteProcessMemory 52 IoCs

Processes:

37a30621364d3083424b24b0255fc8f5752d88c381600d840574e551c284fb6e.bin.exeCo:binCo.execmd.execmd.execmd.exe

description	pid	process	target process
PID 300 wrote to memory of 1860	300	37a30621364d3083424b24b0255fc8f5752d88c381600d840574e551c284fb6e.bin.exe	Co:bin
PID 300 wrote to memory of 1860	300	37a30621364d3083424b24b0255fc8f5752d88c381600d840574e551c284fb6e.bin.exe	Co:bin
PID 300 wrote to memory of 1860	300	37a30621364d3083424b24b0255fc8f5752d88c381600d840574e551c284fb6e.bin.exe	Co:bin
PID 300 wrote to memory of 1860	300	37a30621364d3083424b24b0255fc8f5752d88c381600d840574e551c284fb6e.bin.exe	Co:bin
PID 1860 wrote to memory of 1848	1860	Co:bin	vssadmin.exe
PID 1860 wrote to memory of 1848	1860	Co:bin	vssadmin.exe
PID 1860 wrote to memory of 1848	1860	Co:bin	vssadmin.exe
PID 1860 wrote to memory of 1848	1860	Co:bin	vssadmin.exe
PID 1860 wrote to memory of 1780	1860	Co:bin	takeown.exe
PID 1860 wrote to memory of 1780	1860	Co:bin	takeown.exe
PID 1860 wrote to memory of 1780	1860	Co:bin	takeown.exe
PID 1860 wrote to memory of 1780	1860	Co:bin	takeown.exe
PID 1860 wrote to memory of 1688	1860	Co:bin	icacls.exe
PID 1860 wrote to memory of 1688	1860	Co:bin	icacls.exe
PID 1860 wrote to memory of 1688	1860	Co:bin	icacls.exe
PID 1860 wrote to memory of 1688	1860	Co:bin	icacls.exe
PID 1480 wrote to memory of 1268	1480	Co.exe	cmd.exe
PID 1480 wrote to memory of 1268	1480	Co.exe	cmd.exe
PID 1480 wrote to memory of 1268	1480	Co.exe	cmd.exe
PID 1480 wrote to memory of 1268	1480	Co.exe	cmd.exe
PID 1268 wrote to memory of 1612	1268	cmd.exe	choice.exe
PID 1268 wrote to memory of 1612	1268	cmd.exe	choice.exe
PID 1268 wrote to memory of 1612	1268	cmd.exe	choice.exe
PID 1268 wrote to memory of 1612	1268	cmd.exe	choice.exe
PID 1860 wrote to memory of 1548	1860	Co:bin	cmd.exe
PID 1860 wrote to memory of 1548	1860	Co:bin	cmd.exe
PID 1860 wrote to memory of 1548	1860	Co:bin	cmd.exe
PID 1860 wrote to memory of 1548	1860	Co:bin	cmd.exe
PID 300 wrote to memory of 1712	300	37a30621364d3083424b24b0255fc8f5752d88c381600d840574e551c284fb6e.bin.exe	cmd.exe
PID 300 wrote to memory of 1712	300	37a30621364d3083424b24b0255fc8f5752d88c381600d840574e551c284fb6e.bin.exe	cmd.exe
PID 300 wrote to memory of 1712	300	37a30621364d3083424b24b0255fc8f5752d88c381600d840574e551c284fb6e.bin.exe	cmd.exe
PID 300 wrote to memory of 1712	300	37a30621364d3083424b24b0255fc8f5752d88c381600d840574e551c284fb6e.bin.exe	cmd.exe
PID 1548 wrote to memory of 1704	1548	cmd.exe	choice.exe
PID 1548 wrote to memory of 1704	1548	cmd.exe	choice.exe
PID 1548 wrote to memory of 1704	1548	cmd.exe	choice.exe
PID 1548 wrote to memory of 1704	1548	cmd.exe	choice.exe
PID 1712 wrote to memory of 1584	1712	cmd.exe	choice.exe
PID 1712 wrote to memory of 1584	1712	cmd.exe	choice.exe
PID 1712 wrote to memory of 1584	1712	cmd.exe	choice.exe
PID 1712 wrote to memory of 1584	1712	cmd.exe	choice.exe
PID 1268 wrote to memory of 780	1268	cmd.exe	attrib.exe
PID 1268 wrote to memory of 780	1268	cmd.exe	attrib.exe
PID 1268 wrote to memory of 780	1268	cmd.exe	attrib.exe
PID 1268 wrote to memory of 780	1268	cmd.exe	attrib.exe
PID 1548 wrote to memory of 1788	1548	cmd.exe	attrib.exe
PID 1548 wrote to memory of 1788	1548	cmd.exe	attrib.exe
PID 1548 wrote to memory of 1788	1548	cmd.exe	attrib.exe
PID 1548 wrote to memory of 1788	1548	cmd.exe	attrib.exe
PID 1712 wrote to memory of 1792	1712	cmd.exe	attrib.exe
PID 1712 wrote to memory of 1792	1712	cmd.exe	attrib.exe
PID 1712 wrote to memory of 1792	1712	cmd.exe	attrib.exe
PID 1712 wrote to memory of 1792	1712	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

1792 attrib.exe
780 attrib.exe
1788 attrib.exe

pid	process
1792	attrib.exe
780	attrib.exe
1788	attrib.exe

C:\Users\Admin\AppData\Local\Temp\37a30621364d3083424b24b0255fc8f5752d88c381600d840574e551c284fb6e.bin.exe
"C:\Users\Admin\AppData\Local\Temp\37a30621364d3083424b24b0255fc8f5752d88c381600d840574e551c284fb6e.bin.exe"
1⤵
- Loads dropped DLL
- NTFS ADS
- Suspicious use of WriteProcessMemory
PID:300

C:\Users\Admin\AppData\Roaming\Co:bin
C:\Users\Admin\AppData\Roaming\Co:bin -r
2⤵
- Executes dropped EXE
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:1860

C:\Windows\system32\vssadmin.exe
C:\Windows\system32\vssadmin.exe Delete Shadows /All /Quiet
3⤵
- Interacts with shadow copies
PID:1848

C:\Windows\SysWOW64\takeown.exe
C:\Windows\system32\takeown.exe /F C:\Windows\system32\Co.exe
3⤵
- Possible privilege escalation attempt
- Modifies file permissions
PID:1780

C:\Windows\SysWOW64\icacls.exe
C:\Windows\system32\icacls.exe C:\Windows\system32\Co.exe /reset
3⤵
- Possible privilege escalation attempt
- Modifies file permissions
PID:1688

C:\Windows\SysWOW64\cmd.exe
cmd /c choice /t 10 /d y & attrib -h "C:\Users\Admin\AppData\Roaming\Co" & del "C:\Users\Admin\AppData\Roaming\Co"
3⤵
- Suspicious use of WriteProcessMemory
PID:1548

C:\Windows\SysWOW64\choice.exe
choice /t 10 /d y
4⤵
PID:1704

C:\Windows\SysWOW64\attrib.exe
attrib -h "C:\Users\Admin\AppData\Roaming\Co"
4⤵
- Views/modifies file attributes
PID:1788

C:\Windows\SysWOW64\cmd.exe
cmd /c choice /t 10 /d y & attrib -h "C:\Users\Admin\AppData\Local\Temp\37a30621364d3083424b24b0255fc8f5752d88c381600d840574e551c284fb6e.bin.exe" & del "C:\Users\Admin\AppData\Local\Temp\37a30621364d3083424b24b0255fc8f5752d88c381600d840574e551c284fb6e.bin.exe"
2⤵
- Deletes itself
- Suspicious use of WriteProcessMemory
PID:1712

C:\Windows\SysWOW64\choice.exe
choice /t 10 /d y
3⤵
PID:1584

C:\Windows\SysWOW64\attrib.exe
attrib -h "C:\Users\Admin\AppData\Local\Temp\37a30621364d3083424b24b0255fc8f5752d88c381600d840574e551c284fb6e.bin.exe"
3⤵
- Views/modifies file attributes
PID:1792

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Modifies service
- Suspicious use of AdjustPrivilegeToken
PID:2016

C:\Windows\SysWOW64\Co.exe
C:\Windows\SysWOW64\Co.exe -s
1⤵
- Executes dropped EXE
- Modifies extensions of user files
- Suspicious use of WriteProcessMemory
PID:1480

C:\Windows\SysWOW64\cmd.exe
cmd /c choice /t 10 /d y & attrib -h "C:\Windows\SysWOW64\Co.exe" & del "C:\Windows\SysWOW64\Co.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:1268

C:\Windows\SysWOW64\choice.exe
choice /t 10 /d y
3⤵
PID:1612

C:\Windows\SysWOW64\attrib.exe
attrib -h "C:\Windows\SysWOW64\Co.exe"
3⤵
- Drops file in System32 directory
- Views/modifies file attributes
PID:780

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Roaming\Co:bin
MD5
6d9ad19726c79c0f7b4bf91475452e2d

SHA1
e6d92f05926c01ed146dbfdf02500c234ccf0888

SHA256
37a30621364d3083424b24b0255fc8f5752d88c381600d840574e551c284fb6e

SHA512
87923aeb9b0d409975dd0d364a6c12b57afffde944ccb6707cff134d456f6b8e9c1753b63ff7ffcbc0d389c37a1cff1cadc5075e4ecb503ebcabeb3f631b5eb3

Download Submit
C:\Users\Admin\AppData\Roaming\Co:bin
MD5
6d9ad19726c79c0f7b4bf91475452e2d

SHA1
e6d92f05926c01ed146dbfdf02500c234ccf0888

SHA256
37a30621364d3083424b24b0255fc8f5752d88c381600d840574e551c284fb6e

SHA512
87923aeb9b0d409975dd0d364a6c12b57afffde944ccb6707cff134d456f6b8e9c1753b63ff7ffcbc0d389c37a1cff1cadc5075e4ecb503ebcabeb3f631b5eb3

Download Submit
C:\Windows\SysWOW64\Co.exe
MD5
6d9ad19726c79c0f7b4bf91475452e2d

SHA1
e6d92f05926c01ed146dbfdf02500c234ccf0888

SHA256
37a30621364d3083424b24b0255fc8f5752d88c381600d840574e551c284fb6e

SHA512
87923aeb9b0d409975dd0d364a6c12b57afffde944ccb6707cff134d456f6b8e9c1753b63ff7ffcbc0d389c37a1cff1cadc5075e4ecb503ebcabeb3f631b5eb3

Download Submit
C:\Windows\SysWOW64\Co.exe
MD5
6d9ad19726c79c0f7b4bf91475452e2d

SHA1
e6d92f05926c01ed146dbfdf02500c234ccf0888

SHA256
37a30621364d3083424b24b0255fc8f5752d88c381600d840574e551c284fb6e

SHA512
87923aeb9b0d409975dd0d364a6c12b57afffde944ccb6707cff134d456f6b8e9c1753b63ff7ffcbc0d389c37a1cff1cadc5075e4ecb503ebcabeb3f631b5eb3

Download Submit
\Users\Admin\AppData\Roaming\Co
MD5
3206adc4d06bb764c9a4936c8e22708c

SHA1
235e038f4feabb816150e2e1cf499fd300c3bd1a

SHA256
8e31bb2d80682b758878488e1d17473f6ba7f37fb4469a4d67a0e600279e14b4

SHA512
c6efad7c7fb7405690f2addb1f9713f4dacd3bfbfe074b0aec1b49473b8cfef62f3d1decbaf0bb093f674796ac75ed70b1f7b310af8509ae879e62fc3b126ea1

Download Submit
\Users\Admin\AppData\Roaming\Co
MD5
3206adc4d06bb764c9a4936c8e22708c

SHA1
235e038f4feabb816150e2e1cf499fd300c3bd1a

SHA256
8e31bb2d80682b758878488e1d17473f6ba7f37fb4469a4d67a0e600279e14b4

SHA512
c6efad7c7fb7405690f2addb1f9713f4dacd3bfbfe074b0aec1b49473b8cfef62f3d1decbaf0bb093f674796ac75ed70b1f7b310af8509ae879e62fc3b126ea1

Download Submit
memory/780-16-0x0000000000000000-mapping.dmp

Download
memory/1268-10-0x0000000000000000-mapping.dmp

Download
memory/1548-12-0x0000000000000000-mapping.dmp

Download
memory/1584-15-0x0000000000000000-mapping.dmp

Download
memory/1612-11-0x0000000000000000-mapping.dmp

Download
memory/1688-8-0x0000000000000000-mapping.dmp

Download
memory/1704-14-0x0000000000000000-mapping.dmp

Download
memory/1712-13-0x0000000000000000-mapping.dmp

Download
memory/1780-6-0x0000000000000000-mapping.dmp

Download
memory/1788-17-0x0000000000000000-mapping.dmp

Download
memory/1792-18-0x0000000000000000-mapping.dmp

Download
memory/1848-4-0x0000000000000000-mapping.dmp

Download
memory/1860-2-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads