wastedlocker | 905ea119ad8d3e54cd228c458a1b5681abc1f35df782977a23812ec4efa0288a

Reason

Machine shutdown

General

Target

905ea119ad8d3e54cd228c458a1b5681abc1f35df782977a23812ec4efa0288a.exe
Size

1.2MB
MD5

2cc4534b0dd0e1c8d5b89644274a10c1
SHA1

735ee2c15c0b7172f65d39f0fd33b9186ee69653
SHA256

905ea119ad8d3e54cd228c458a1b5681abc1f35df782977a23812ec4efa0288a
SHA512

a842b2d171aa6efa1b391d5d0f84663e78021b485555e2bf10a5e589d8652057f5abbd88e1a5ec628b714692ec5d63c3172894aa7846d5897e87d99dad67e2b8

Score

10^/10

ransomware discovery exploit wastedlocker persistence

Malware Config

Signatures

Views/modifies file attributes 1 TTPs 3 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exeattrib.exeattrib.exe

pid process

1948 attrib.exe
1944 attrib.exe
1968 attrib.exe
Modifies file permissions 1 TTPs 2 IoCs
discovery

File Permissions Modification
T1222

Processes:

takeown.exeicacls.exe

pid process

1512 takeown.exe
1388 icacls.exe
Possible privilege escalation attempt 2 IoCs
exploit

Processes:

takeown.exeicacls.exe

pid process

1512 takeown.exe
1388 icacls.exe
Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1532 cmd.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

1316 vssadmin.exe
WastedLocker
Ransomware family seen in the wild since May 2020.
ransomware wastedlocker

pid	process
1948	attrib.exe
1944	attrib.exe
1968	attrib.exe

pid	process
1512	takeown.exe
1388	icacls.exe

pid	process
1512	takeown.exe
1388	icacls.exe

pid	process
1532	cmd.exe

pid	process
1316	vssadmin.exe

NTFS ADS 1 IoCs

Processes:

905ea119ad8d3e54cd228c458a1b5681abc1f35df782977a23812ec4efa0288a.exe

description	ioc	process
File opened for modification	C:\Users\Admin\AppData\Roaming\Remote:bin	905ea119ad8d3e54cd228c458a1b5681abc1f35df782977a23812ec4efa0288a.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\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

Loads dropped DLL 2 IoCs

Processes:

905ea119ad8d3e54cd228c458a1b5681abc1f35df782977a23812ec4efa0288a.exe

pid	process
1124	905ea119ad8d3e54cd228c458a1b5681abc1f35df782977a23812ec4efa0288a.exe
1124	905ea119ad8d3e54cd228c458a1b5681abc1f35df782977a23812ec4efa0288a.exe

Suspicious use of WriteProcessMemory 52 IoCs

Processes:

905ea119ad8d3e54cd228c458a1b5681abc1f35df782977a23812ec4efa0288a.exeRemote:binRemote.execmd.execmd.execmd.exe

description	pid	process	target process
PID 1124 wrote to memory of 1272	1124	905ea119ad8d3e54cd228c458a1b5681abc1f35df782977a23812ec4efa0288a.exe	Remote:bin
PID 1124 wrote to memory of 1272	1124	905ea119ad8d3e54cd228c458a1b5681abc1f35df782977a23812ec4efa0288a.exe	Remote:bin
PID 1124 wrote to memory of 1272	1124	905ea119ad8d3e54cd228c458a1b5681abc1f35df782977a23812ec4efa0288a.exe	Remote:bin
PID 1124 wrote to memory of 1272	1124	905ea119ad8d3e54cd228c458a1b5681abc1f35df782977a23812ec4efa0288a.exe	Remote:bin
PID 1272 wrote to memory of 1316	1272	Remote:bin	vssadmin.exe
PID 1272 wrote to memory of 1316	1272	Remote:bin	vssadmin.exe
PID 1272 wrote to memory of 1316	1272	Remote:bin	vssadmin.exe
PID 1272 wrote to memory of 1316	1272	Remote:bin	vssadmin.exe
PID 1272 wrote to memory of 1512	1272	Remote:bin	takeown.exe
PID 1272 wrote to memory of 1512	1272	Remote:bin	takeown.exe
PID 1272 wrote to memory of 1512	1272	Remote:bin	takeown.exe
PID 1272 wrote to memory of 1512	1272	Remote:bin	takeown.exe
PID 1272 wrote to memory of 1388	1272	Remote:bin	icacls.exe
PID 1272 wrote to memory of 1388	1272	Remote:bin	icacls.exe
PID 1272 wrote to memory of 1388	1272	Remote:bin	icacls.exe
PID 1272 wrote to memory of 1388	1272	Remote:bin	icacls.exe
PID 1380 wrote to memory of 1856	1380	Remote.exe	cmd.exe
PID 1380 wrote to memory of 1856	1380	Remote.exe	cmd.exe
PID 1380 wrote to memory of 1856	1380	Remote.exe	cmd.exe
PID 1380 wrote to memory of 1856	1380	Remote.exe	cmd.exe
PID 1856 wrote to memory of 1580	1856	cmd.exe	choice.exe
PID 1856 wrote to memory of 1580	1856	cmd.exe	choice.exe
PID 1856 wrote to memory of 1580	1856	cmd.exe	choice.exe
PID 1856 wrote to memory of 1580	1856	cmd.exe	choice.exe
PID 1272 wrote to memory of 1608	1272	Remote:bin	cmd.exe
PID 1272 wrote to memory of 1608	1272	Remote:bin	cmd.exe
PID 1272 wrote to memory of 1608	1272	Remote:bin	cmd.exe
PID 1272 wrote to memory of 1608	1272	Remote:bin	cmd.exe
PID 1124 wrote to memory of 1532	1124	905ea119ad8d3e54cd228c458a1b5681abc1f35df782977a23812ec4efa0288a.exe	cmd.exe
PID 1124 wrote to memory of 1532	1124	905ea119ad8d3e54cd228c458a1b5681abc1f35df782977a23812ec4efa0288a.exe	cmd.exe
PID 1124 wrote to memory of 1532	1124	905ea119ad8d3e54cd228c458a1b5681abc1f35df782977a23812ec4efa0288a.exe	cmd.exe
PID 1124 wrote to memory of 1532	1124	905ea119ad8d3e54cd228c458a1b5681abc1f35df782977a23812ec4efa0288a.exe	cmd.exe
PID 1608 wrote to memory of 1864	1608	cmd.exe	choice.exe
PID 1608 wrote to memory of 1864	1608	cmd.exe	choice.exe
PID 1608 wrote to memory of 1864	1608	cmd.exe	choice.exe
PID 1608 wrote to memory of 1864	1608	cmd.exe	choice.exe
PID 1532 wrote to memory of 1900	1532	cmd.exe	choice.exe
PID 1532 wrote to memory of 1900	1532	cmd.exe	choice.exe
PID 1532 wrote to memory of 1900	1532	cmd.exe	choice.exe
PID 1532 wrote to memory of 1900	1532	cmd.exe	choice.exe
PID 1856 wrote to memory of 1968	1856	cmd.exe	attrib.exe
PID 1856 wrote to memory of 1968	1856	cmd.exe	attrib.exe
PID 1856 wrote to memory of 1968	1856	cmd.exe	attrib.exe
PID 1856 wrote to memory of 1968	1856	cmd.exe	attrib.exe
PID 1532 wrote to memory of 1948	1532	cmd.exe	attrib.exe
PID 1532 wrote to memory of 1948	1532	cmd.exe	attrib.exe
PID 1532 wrote to memory of 1948	1532	cmd.exe	attrib.exe
PID 1532 wrote to memory of 1948	1532	cmd.exe	attrib.exe
PID 1608 wrote to memory of 1944	1608	cmd.exe	attrib.exe
PID 1608 wrote to memory of 1944	1608	cmd.exe	attrib.exe
PID 1608 wrote to memory of 1944	1608	cmd.exe	attrib.exe
PID 1608 wrote to memory of 1944	1608	cmd.exe	attrib.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

vssvc.exe

description pid process

Token: SeBackupPrivilege 1492 vssvc.exe
Token: SeRestorePrivilege 1492 vssvc.exe
Token: SeAuditPrivilege 1492 vssvc.exe

description	pid	process
Token: SeBackupPrivilege	1492	vssvc.exe
Token: SeRestorePrivilege	1492	vssvc.exe
Token: SeAuditPrivilege	1492	vssvc.exe

Modifies extensions of user files 12 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

Processes:

Remote.exe

description	ioc	process
File opened for modification	C:\Users\Admin\Pictures\WriteConvert.tiff.garminwasted	Remote.exe
File created	C:\Users\Admin\Pictures\DebugApprove.png.garminwasted_info	Remote.exe
File renamed	C:\Users\Admin\Pictures\DebugApprove.png => C:\Users\Admin\Pictures\DebugApprove.png.garminwasted	Remote.exe
File opened for modification	C:\Users\Admin\Pictures\DebugApprove.png.garminwasted	Remote.exe
File opened for modification	C:\Users\Admin\Pictures\MoveInitialize.png.garminwasted	Remote.exe
File renamed	C:\Users\Admin\Pictures\SendSwitch.tiff => C:\Users\Admin\Pictures\SendSwitch.tiff.garminwasted	Remote.exe
File opened for modification	C:\Users\Admin\Pictures\SendSwitch.tiff.garminwasted	Remote.exe
File renamed	C:\Users\Admin\Pictures\WriteConvert.tiff => C:\Users\Admin\Pictures\WriteConvert.tiff.garminwasted	Remote.exe
File created	C:\Users\Admin\Pictures\MoveInitialize.png.garminwasted_info	Remote.exe
File renamed	C:\Users\Admin\Pictures\MoveInitialize.png => C:\Users\Admin\Pictures\MoveInitialize.png.garminwasted	Remote.exe
File created	C:\Users\Admin\Pictures\SendSwitch.tiff.garminwasted_info	Remote.exe
File created	C:\Users\Admin\Pictures\WriteConvert.tiff.garminwasted_info	Remote.exe

Executes dropped EXE 2 IoCs

Processes:

Remote:binRemote.exe

pid process

1272 Remote:bin
1380 Remote.exe
Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
ransomware

File Deletion
T1107

Inhibit System Recovery
T1490

pid	process
1272	Remote:bin
1380	Remote.exe

Drops file in System32 directory 2 IoCs

Processes:

Remote:binattrib.exe

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

C:\Users\Admin\AppData\Local\Temp\905ea119ad8d3e54cd228c458a1b5681abc1f35df782977a23812ec4efa0288a.exe
"C:\Users\Admin\AppData\Local\Temp\905ea119ad8d3e54cd228c458a1b5681abc1f35df782977a23812ec4efa0288a.exe"
1⤵
- NTFS ADS
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1124

C:\Users\Admin\AppData\Roaming\Remote:bin
C:\Users\Admin\AppData\Roaming\Remote:bin -r
2⤵
- Suspicious use of WriteProcessMemory
- Executes dropped EXE
- Drops file in System32 directory
PID:1272

C:\Windows\system32\vssadmin.exe
C:\Windows\system32\vssadmin.exe Delete Shadows /All /Quiet
3⤵
- Interacts with shadow copies
PID:1316

C:\Windows\SysWOW64\takeown.exe
C:\Windows\system32\takeown.exe /F C:\Windows\system32\Remote.exe
3⤵
- Modifies file permissions
- Possible privilege escalation attempt
PID:1512

C:\Windows\SysWOW64\icacls.exe
C:\Windows\system32\icacls.exe C:\Windows\system32\Remote.exe /reset
3⤵
- Modifies file permissions
- Possible privilege escalation attempt
PID:1388

C:\Windows\SysWOW64\cmd.exe
cmd /c choice /t 10 /d y & attrib -h "C:\Users\Admin\AppData\Roaming\Remote" & del "C:\Users\Admin\AppData\Roaming\Remote"
3⤵
- Suspicious use of WriteProcessMemory
PID:1608

C:\Windows\SysWOW64\choice.exe
choice /t 10 /d y
4⤵
PID:1864

C:\Windows\SysWOW64\attrib.exe
attrib -h "C:\Users\Admin\AppData\Roaming\Remote"
4⤵
- Views/modifies file attributes
PID:1944

C:\Windows\SysWOW64\cmd.exe
cmd /c choice /t 10 /d y & attrib -h "C:\Users\Admin\AppData\Local\Temp\905ea119ad8d3e54cd228c458a1b5681abc1f35df782977a23812ec4efa0288a.exe" & del "C:\Users\Admin\AppData\Local\Temp\905ea119ad8d3e54cd228c458a1b5681abc1f35df782977a23812ec4efa0288a.exe"
2⤵
- Deletes itself
- Suspicious use of WriteProcessMemory
PID:1532

C:\Windows\SysWOW64\choice.exe
choice /t 10 /d y
3⤵
PID:1900

C:\Windows\SysWOW64\attrib.exe
attrib -h "C:\Users\Admin\AppData\Local\Temp\905ea119ad8d3e54cd228c458a1b5681abc1f35df782977a23812ec4efa0288a.exe"
3⤵
- Views/modifies file attributes
PID:1948

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Modifies service
- Suspicious use of AdjustPrivilegeToken
PID:1492

C:\Windows\SysWOW64\Remote.exe
C:\Windows\SysWOW64\Remote.exe -s
1⤵
- Suspicious use of WriteProcessMemory
- Modifies extensions of user files
- Executes dropped EXE
PID:1380

C:\Windows\SysWOW64\cmd.exe
cmd /c choice /t 10 /d y & attrib -h "C:\Windows\SysWOW64\Remote.exe" & del "C:\Windows\SysWOW64\Remote.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:1856

C:\Windows\SysWOW64\choice.exe
choice /t 10 /d y
3⤵
PID:1580

C:\Windows\SysWOW64\attrib.exe
attrib -h "C:\Windows\SysWOW64\Remote.exe"
3⤵
- Views/modifies file attributes
- Drops file in System32 directory
PID:1968

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x0
1⤵
PID:2044

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x1
1⤵
PID:284

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Hidden Files and Directories

1

T1158

Modify Existing Service

1

T1031

Privilege Escalation

Defense Evasion

Hidden Files and Directories

1

T1158

File Permissions Modification

1

T1222

File Deletion

2

T1107

Modify Registry

1

T1112

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\Remote:bin

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C:\Users\Admin\AppData\Roaming\Remote:bin

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C:\Windows\SysWOW64\Remote.exe

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C:\Windows\SysWOW64\Remote.exe

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\Users\Admin\AppData\Roaming\Remote

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\Users\Admin\AppData\Roaming\Remote

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memory/284-31-0x0000000002810000-0x0000000002811000-memory.dmp

Filesize
4KB

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memory/284-20-0x0000000002810000-0x0000000002811000-memory.dmp

Filesize
4KB

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memory/284-19-0x0000000002810000-0x0000000002811000-memory.dmp

Filesize
4KB

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memory/284-29-0x0000000002810000-0x0000000002811000-memory.dmp

Filesize
4KB

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memory/1272-2-0x0000000000000000-mapping.dmp

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memory/1316-4-0x0000000000000000-mapping.dmp

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memory/1388-8-0x0000000000000000-mapping.dmp

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memory/1512-6-0x0000000000000000-mapping.dmp

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memory/1532-13-0x0000000000000000-mapping.dmp

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memory/1580-11-0x0000000000000000-mapping.dmp

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memory/1608-12-0x0000000000000000-mapping.dmp

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memory/1856-10-0x0000000000000000-mapping.dmp

Download
memory/1864-14-0x0000000000000000-mapping.dmp

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memory/1900-15-0x0000000000000000-mapping.dmp

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memory/1944-18-0x0000000000000000-mapping.dmp

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memory/1948-17-0x0000000000000000-mapping.dmp

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memory/1968-16-0x0000000000000000-mapping.dmp

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Analysis

Sharing

Errors

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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