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:

Server:binServer.exe

pid process

4128 Server:bin
3116 Server.exe

pid	process
4128	Server:bin
3116	Server.exe

Modifies extensions of user files 6 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

Processes:

Server.exe

description	ioc	process
File created	C:\Users\Admin\Pictures\RegisterWrite.raw.garminwasted_info	Server.exe
File renamed	C:\Users\Admin\Pictures\RegisterWrite.raw => C:\Users\Admin\Pictures\RegisterWrite.raw.garminwasted	Server.exe
File opened for modification	C:\Users\Admin\Pictures\RegisterWrite.raw.garminwasted	Server.exe
File created	C:\Users\Admin\Pictures\PingWrite.tiff.garminwasted_info	Server.exe
File renamed	C:\Users\Admin\Pictures\PingWrite.tiff => C:\Users\Admin\Pictures\PingWrite.tiff.garminwasted	Server.exe
File opened for modification	C:\Users\Admin\Pictures\PingWrite.tiff.garminwasted	Server.exe

Possible privilege escalation attempt 2 IoCs
exploit

Processes:

takeown.exeicacls.exe

pid process

776 takeown.exe
4192 icacls.exe
Modifies file permissions 1 TTPs 2 IoCs
discovery

File Permissions Modification
T1222

Processes:

takeown.exeicacls.exe

pid process

776 takeown.exe
4192 icacls.exe

pid	process
776	takeown.exe
4192	icacls.exe

pid	process
776	takeown.exe
4192	icacls.exe

Drops file in System32 directory 2 IoCs

Processes:

Server:binattrib.exe

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

1872 vssadmin.exe

pid	process
1872	vssadmin.exe

NTFS ADS 1 IoCs

Processes:

37a30621364d3083424b24b0255fc8f5752d88c381600d840574e551c284fb6e.bin.exe

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

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

vssvc.exe

description pid process

Token: SeBackupPrivilege 3544 vssvc.exe
Token: SeRestorePrivilege 3544 vssvc.exe
Token: SeAuditPrivilege 3544 vssvc.exe

description	pid	process
Token: SeBackupPrivilege	3544	vssvc.exe
Token: SeRestorePrivilege	3544	vssvc.exe
Token: SeAuditPrivilege	3544	vssvc.exe

Suspicious use of WriteProcessMemory 38 IoCs

Processes:

37a30621364d3083424b24b0255fc8f5752d88c381600d840574e551c284fb6e.bin.exeServer:binServer.execmd.execmd.execmd.exe

description	pid	process	target process
PID 4704 wrote to memory of 4128	4704	37a30621364d3083424b24b0255fc8f5752d88c381600d840574e551c284fb6e.bin.exe	Server:bin
PID 4704 wrote to memory of 4128	4704	37a30621364d3083424b24b0255fc8f5752d88c381600d840574e551c284fb6e.bin.exe	Server:bin
PID 4704 wrote to memory of 4128	4704	37a30621364d3083424b24b0255fc8f5752d88c381600d840574e551c284fb6e.bin.exe	Server:bin
PID 4128 wrote to memory of 1872	4128	Server:bin	vssadmin.exe
PID 4128 wrote to memory of 1872	4128	Server:bin	vssadmin.exe
PID 4128 wrote to memory of 776	4128	Server:bin	takeown.exe
PID 4128 wrote to memory of 776	4128	Server:bin	takeown.exe
PID 4128 wrote to memory of 776	4128	Server:bin	takeown.exe
PID 4128 wrote to memory of 4192	4128	Server:bin	icacls.exe
PID 4128 wrote to memory of 4192	4128	Server:bin	icacls.exe
PID 4128 wrote to memory of 4192	4128	Server:bin	icacls.exe
PID 3116 wrote to memory of 2096	3116	Server.exe	cmd.exe
PID 3116 wrote to memory of 2096	3116	Server.exe	cmd.exe
PID 3116 wrote to memory of 2096	3116	Server.exe	cmd.exe
PID 2096 wrote to memory of 4056	2096	cmd.exe	choice.exe
PID 2096 wrote to memory of 4056	2096	cmd.exe	choice.exe
PID 2096 wrote to memory of 4056	2096	cmd.exe	choice.exe
PID 4128 wrote to memory of 3504	4128	Server:bin	cmd.exe
PID 4128 wrote to memory of 3504	4128	Server:bin	cmd.exe
PID 4128 wrote to memory of 3504	4128	Server:bin	cmd.exe
PID 4704 wrote to memory of 2056	4704	37a30621364d3083424b24b0255fc8f5752d88c381600d840574e551c284fb6e.bin.exe	cmd.exe
PID 4704 wrote to memory of 2056	4704	37a30621364d3083424b24b0255fc8f5752d88c381600d840574e551c284fb6e.bin.exe	cmd.exe
PID 4704 wrote to memory of 2056	4704	37a30621364d3083424b24b0255fc8f5752d88c381600d840574e551c284fb6e.bin.exe	cmd.exe
PID 3504 wrote to memory of 4440	3504	cmd.exe	choice.exe
PID 3504 wrote to memory of 4440	3504	cmd.exe	choice.exe
PID 3504 wrote to memory of 4440	3504	cmd.exe	choice.exe
PID 2056 wrote to memory of 4404	2056	cmd.exe	choice.exe
PID 2056 wrote to memory of 4404	2056	cmd.exe	choice.exe
PID 2056 wrote to memory of 4404	2056	cmd.exe	choice.exe
PID 2096 wrote to memory of 672	2096	cmd.exe	attrib.exe
PID 2096 wrote to memory of 672	2096	cmd.exe	attrib.exe
PID 2096 wrote to memory of 672	2096	cmd.exe	attrib.exe
PID 3504 wrote to memory of 884	3504	cmd.exe	attrib.exe
PID 3504 wrote to memory of 884	3504	cmd.exe	attrib.exe
PID 3504 wrote to memory of 884	3504	cmd.exe	attrib.exe
PID 2056 wrote to memory of 1000	2056	cmd.exe	attrib.exe
PID 2056 wrote to memory of 1000	2056	cmd.exe	attrib.exe
PID 2056 wrote to memory of 1000	2056	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

884 attrib.exe
1000 attrib.exe
672 attrib.exe

pid	process
884	attrib.exe
1000	attrib.exe
672	attrib.exe

C:\Users\Admin\AppData\Local\Temp\37a30621364d3083424b24b0255fc8f5752d88c381600d840574e551c284fb6e.bin.exe
"C:\Users\Admin\AppData\Local\Temp\37a30621364d3083424b24b0255fc8f5752d88c381600d840574e551c284fb6e.bin.exe"
1⤵
- NTFS ADS
- Suspicious use of WriteProcessMemory
PID:4704

C:\Users\Admin\AppData\Roaming\Server:bin
C:\Users\Admin\AppData\Roaming\Server:bin -r
2⤵
- Executes dropped EXE
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:4128

C:\Windows\system32\vssadmin.exe
C:\Windows\system32\vssadmin.exe Delete Shadows /All /Quiet
3⤵
- Interacts with shadow copies
PID:1872

C:\Windows\SysWOW64\takeown.exe
C:\Windows\system32\takeown.exe /F C:\Windows\system32\Server.exe
3⤵
- Possible privilege escalation attempt
- Modifies file permissions
PID:776

C:\Windows\SysWOW64\icacls.exe
C:\Windows\system32\icacls.exe C:\Windows\system32\Server.exe /reset
3⤵
- Possible privilege escalation attempt
- Modifies file permissions
PID:4192

C:\Windows\SysWOW64\cmd.exe
cmd /c choice /t 10 /d y & attrib -h "C:\Users\Admin\AppData\Roaming\Server" & del "C:\Users\Admin\AppData\Roaming\Server"
3⤵
- Suspicious use of WriteProcessMemory
PID:3504

C:\Windows\SysWOW64\choice.exe
choice /t 10 /d y
4⤵
PID:4440

C:\Windows\SysWOW64\attrib.exe
attrib -h "C:\Users\Admin\AppData\Roaming\Server"
4⤵
- Views/modifies file attributes
PID:884

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⤵
- Suspicious use of WriteProcessMemory
PID:2056

C:\Windows\SysWOW64\choice.exe
choice /t 10 /d y
3⤵
PID:4404

C:\Windows\SysWOW64\attrib.exe
attrib -h "C:\Users\Admin\AppData\Local\Temp\37a30621364d3083424b24b0255fc8f5752d88c381600d840574e551c284fb6e.bin.exe"
3⤵
- Views/modifies file attributes
PID:1000

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Modifies service
- Suspicious use of AdjustPrivilegeToken
PID:3544

C:\Windows\SysWOW64\Server.exe
C:\Windows\SysWOW64\Server.exe -s
1⤵
- Executes dropped EXE
- Modifies extensions of user files
- Suspicious use of WriteProcessMemory
PID:3116

C:\Windows\SysWOW64\cmd.exe
cmd /c choice /t 10 /d y & attrib -h "C:\Windows\SysWOW64\Server.exe" & del "C:\Windows\SysWOW64\Server.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:2096

C:\Windows\SysWOW64\choice.exe
choice /t 10 /d y
3⤵
PID:4056

C:\Windows\SysWOW64\attrib.exe
attrib -h "C:\Windows\SysWOW64\Server.exe"
3⤵
- Drops file in System32 directory
- Views/modifies file attributes
PID:672

Network

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\Server:bin
MD5
6d9ad19726c79c0f7b4bf91475452e2d

SHA1
e6d92f05926c01ed146dbfdf02500c234ccf0888

SHA256
37a30621364d3083424b24b0255fc8f5752d88c381600d840574e551c284fb6e

SHA512
87923aeb9b0d409975dd0d364a6c12b57afffde944ccb6707cff134d456f6b8e9c1753b63ff7ffcbc0d389c37a1cff1cadc5075e4ecb503ebcabeb3f631b5eb3

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

SHA1
e6d92f05926c01ed146dbfdf02500c234ccf0888

SHA256
37a30621364d3083424b24b0255fc8f5752d88c381600d840574e551c284fb6e

SHA512
87923aeb9b0d409975dd0d364a6c12b57afffde944ccb6707cff134d456f6b8e9c1753b63ff7ffcbc0d389c37a1cff1cadc5075e4ecb503ebcabeb3f631b5eb3

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

SHA1
e6d92f05926c01ed146dbfdf02500c234ccf0888

SHA256
37a30621364d3083424b24b0255fc8f5752d88c381600d840574e551c284fb6e

SHA512
87923aeb9b0d409975dd0d364a6c12b57afffde944ccb6707cff134d456f6b8e9c1753b63ff7ffcbc0d389c37a1cff1cadc5075e4ecb503ebcabeb3f631b5eb3

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

SHA1
e6d92f05926c01ed146dbfdf02500c234ccf0888

SHA256
37a30621364d3083424b24b0255fc8f5752d88c381600d840574e551c284fb6e

SHA512
87923aeb9b0d409975dd0d364a6c12b57afffde944ccb6707cff134d456f6b8e9c1753b63ff7ffcbc0d389c37a1cff1cadc5075e4ecb503ebcabeb3f631b5eb3

Download Submit
memory/672-14-0x0000000000000000-mapping.dmp

Download
memory/776-4-0x0000000000000000-mapping.dmp

Download
memory/884-15-0x0000000000000000-mapping.dmp

Download
memory/1000-16-0x0000000000000000-mapping.dmp

Download
memory/1872-3-0x0000000000000000-mapping.dmp

Download
memory/2056-11-0x0000000000000000-mapping.dmp

Download
memory/2096-8-0x0000000000000000-mapping.dmp

Download
memory/3504-10-0x0000000000000000-mapping.dmp

Download
memory/4056-9-0x0000000000000000-mapping.dmp

Download
memory/4128-0-0x0000000000000000-mapping.dmp

Download
memory/4192-6-0x0000000000000000-mapping.dmp

Download
memory/4404-13-0x0000000000000000-mapping.dmp

Download
memory/4440-12-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads