wastedlocker | 8897db876553f942b2eb4005f8475a232bafb82a50ca7761a621842e894a3d80

General

Target

8897db876553f942b2eb4005f8475a232bafb82a50ca7761a621842e894a3d80.exe
Size

56KB
MD5

ecb00e9a61f99a7d4c90723294986bbc
SHA1

be59c867da75e2a66b8c2519e950254f817cd4ad
SHA256

8897db876553f942b2eb4005f8475a232bafb82a50ca7761a621842e894a3d80
SHA512

9dee79827d865de41a63962b419eed7e1f9610ff27f00f8b7b2b9f51e905d5db907d310da590d8f1a11ac88e549373edf39bffdb44d1b205728f1b5e0a43aa5e

Score

10^/10

ransomware exploit wastedlocker persistence discovery

Malware Config

Extracted

Path

C:\Users\Admin\Desktop\MoveDeny.mpeg3.eswasted_info.txt

Family

wastedlocker

Ransom Note

ENERGYSOLUTIONS YOUR NETWORK IS ENCRYPTED NOW USE 48907@PROTONMAIL.COM | 78470@TUTANOTA.COM TO GET THE PRICE FOR YOUR DATA DO NOT GIVE THIS EMAIL TO 3RD PARTIES DO NOT RENAME OR MOVE THE FILE THE FILE IS ENCRYPTED WITH THE FOLLOWING KEY: [begin_key]i34DEHUNZz4v4dXnXaZzEMw8LWWGz5Hx8p8OgNO/t+4E59XzfEYiE9T3WkJnk3tM v29T2bl/tukZPXI9NWFM1T6/5LxMLH2LAnJoEbba/CwLy4lPWfb4B/ilz8dEWVJD hjk5SbSrtzqzFDqFKzEmu5p4CYdt5qMMaTz1M9fHxWTWFKeD4nS1poA9V7DtkUH3 B/1U7pupwNKe9xFoQcHzehtk/4cFioBdFH9lRwvm9IlRzPbJ6HiWkkWPB9fJpi+r H0aBoejQEYDzk7YDeNs+Cm8aqTaZ/xdi5pkPKGsvOefqjKHwKlNbugKVS0kDz+Y4 48gBQkQWt+YeP/MxvY1/En9x/lj2M5aGK9pZ/YT0A3KR9FQpADyeqnLbnpdlYQ00 mZnBG9rkyY/+hogd4HJNVNu/sL9kuqSOzQgtG39akpZk4RGPF/gGGat8ExUbBNrQ AtDMysnLaAIGkM9eo1yXuEWXUgUnR3ITfQehV1A7jkQ0mQ1Wy25fbebt9ejJGNUj j3Rk79xhp7Zcc8xHBLnxBU/jdijMdsazdxDXV/Nw+WbNCQeKT/vThiJKeu+Gf1co HDH13G3dlBDfLVmBty2AT0i19AwGtQRywBm8Wxjzg+/JJSAm3GL/ct0CdoDC7qe6 2Tdv+Tjkdb1KQ9bvuJGpfmb2UGif0ZEdHR5gofzpYt/=[end_key] KEEP IT

Emails

48907@PROTONMAIL.COM

78470@TUTANOTA.COM

Signatures

Views/modifies file attributes 1 TTPs 3 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exeattrib.exeattrib.exe

pid process

256 attrib.exe
276 attrib.exe
1736 attrib.exe
Executes dropped EXE 2 IoCs

Processes:

Mode:binMode.exe

pid process

1740 Mode:bin
3860 Mode.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

vssvc.exe

description pid process

Token: SeBackupPrivilege 2392 vssvc.exe
Token: SeRestorePrivilege 2392 vssvc.exe
Token: SeAuditPrivilege 2392 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

1980 vssadmin.exe
Possible privilege escalation attempt 2 IoCs
exploit

Processes:

takeown.exeicacls.exe

pid process

296 takeown.exe
2836 icacls.exe
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
Modifies file permissions 1 TTPs 2 IoCs
discovery

File Permissions Modification
T1222

Processes:

takeown.exeicacls.exe

pid process

296 takeown.exe
2836 icacls.exe

pid	process
256	attrib.exe
276	attrib.exe
1736	attrib.exe

pid	process
1740	Mode:bin
3860	Mode.exe

description	pid	process
Token: SeBackupPrivilege	2392	vssvc.exe
Token: SeRestorePrivilege	2392	vssvc.exe
Token: SeAuditPrivilege	2392	vssvc.exe

pid	process
1980	vssadmin.exe

pid	process
296	takeown.exe
2836	icacls.exe

pid	process
296	takeown.exe
2836	icacls.exe

Suspicious use of WriteProcessMemory 38 IoCs

Processes:

8897db876553f942b2eb4005f8475a232bafb82a50ca7761a621842e894a3d80.exeMode:binMode.execmd.execmd.execmd.exe

description	pid	process	target process
PID 1628 wrote to memory of 1740	1628	8897db876553f942b2eb4005f8475a232bafb82a50ca7761a621842e894a3d80.exe	Mode:bin
PID 1628 wrote to memory of 1740	1628	8897db876553f942b2eb4005f8475a232bafb82a50ca7761a621842e894a3d80.exe	Mode:bin
PID 1628 wrote to memory of 1740	1628	8897db876553f942b2eb4005f8475a232bafb82a50ca7761a621842e894a3d80.exe	Mode:bin
PID 1740 wrote to memory of 1980	1740	Mode:bin	vssadmin.exe
PID 1740 wrote to memory of 1980	1740	Mode:bin	vssadmin.exe
PID 1740 wrote to memory of 296	1740	Mode:bin	takeown.exe
PID 1740 wrote to memory of 296	1740	Mode:bin	takeown.exe
PID 1740 wrote to memory of 296	1740	Mode:bin	takeown.exe
PID 1740 wrote to memory of 2836	1740	Mode:bin	icacls.exe
PID 1740 wrote to memory of 2836	1740	Mode:bin	icacls.exe
PID 1740 wrote to memory of 2836	1740	Mode:bin	icacls.exe
PID 3860 wrote to memory of 3868	3860	Mode.exe	cmd.exe
PID 3860 wrote to memory of 3868	3860	Mode.exe	cmd.exe
PID 3860 wrote to memory of 3868	3860	Mode.exe	cmd.exe
PID 3868 wrote to memory of 4004	3868	cmd.exe	choice.exe
PID 3868 wrote to memory of 4004	3868	cmd.exe	choice.exe
PID 3868 wrote to memory of 4004	3868	cmd.exe	choice.exe
PID 1740 wrote to memory of 1772	1740	Mode:bin	cmd.exe
PID 1740 wrote to memory of 1772	1740	Mode:bin	cmd.exe
PID 1740 wrote to memory of 1772	1740	Mode:bin	cmd.exe
PID 1628 wrote to memory of 4024	1628	8897db876553f942b2eb4005f8475a232bafb82a50ca7761a621842e894a3d80.exe	cmd.exe
PID 1628 wrote to memory of 4024	1628	8897db876553f942b2eb4005f8475a232bafb82a50ca7761a621842e894a3d80.exe	cmd.exe
PID 1628 wrote to memory of 4024	1628	8897db876553f942b2eb4005f8475a232bafb82a50ca7761a621842e894a3d80.exe	cmd.exe
PID 1772 wrote to memory of 1652	1772	cmd.exe	choice.exe
PID 1772 wrote to memory of 1652	1772	cmd.exe	choice.exe
PID 1772 wrote to memory of 1652	1772	cmd.exe	choice.exe
PID 4024 wrote to memory of 3544	4024	cmd.exe	choice.exe
PID 4024 wrote to memory of 3544	4024	cmd.exe	choice.exe
PID 4024 wrote to memory of 3544	4024	cmd.exe	choice.exe
PID 3868 wrote to memory of 256	3868	cmd.exe	attrib.exe
PID 3868 wrote to memory of 256	3868	cmd.exe	attrib.exe
PID 3868 wrote to memory of 256	3868	cmd.exe	attrib.exe
PID 1772 wrote to memory of 276	1772	cmd.exe	attrib.exe
PID 1772 wrote to memory of 276	1772	cmd.exe	attrib.exe
PID 1772 wrote to memory of 276	1772	cmd.exe	attrib.exe
PID 4024 wrote to memory of 1736	4024	cmd.exe	attrib.exe
PID 4024 wrote to memory of 1736	4024	cmd.exe	attrib.exe
PID 4024 wrote to memory of 1736	4024	cmd.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\ASR Writer	vssvc.exe
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

Drops file in System32 directory 2 IoCs

Processes:

Mode:binattrib.exe

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

Opens file in notepad (likely ransom note) 1 IoCs
ransomware

Processes:

NOTEPAD.EXE

pid process

1632 NOTEPAD.EXE

pid	process
1632	NOTEPAD.EXE

NTFS ADS 1 IoCs

Processes:

8897db876553f942b2eb4005f8475a232bafb82a50ca7761a621842e894a3d80.exe

description	ioc	process
File opened for modification	C:\Users\Admin\AppData\Roaming\Mode:bin	8897db876553f942b2eb4005f8475a232bafb82a50ca7761a621842e894a3d80.exe

C:\Users\Admin\AppData\Local\Temp\8897db876553f942b2eb4005f8475a232bafb82a50ca7761a621842e894a3d80.exe
"C:\Users\Admin\AppData\Local\Temp\8897db876553f942b2eb4005f8475a232bafb82a50ca7761a621842e894a3d80.exe"
1⤵
- Suspicious use of WriteProcessMemory
- NTFS ADS
PID:1628

C:\Users\Admin\AppData\Roaming\Mode:bin
C:\Users\Admin\AppData\Roaming\Mode:bin -r
2⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
- Drops file in System32 directory
PID:1740

C:\Windows\system32\vssadmin.exe
C:\Windows\system32\vssadmin.exe Delete Shadows /All /Quiet
3⤵
- Interacts with shadow copies
PID:1980

C:\Windows\SysWOW64\takeown.exe
C:\Windows\system32\takeown.exe /F C:\Windows\system32\Mode.exe
3⤵
- Possible privilege escalation attempt
- Modifies file permissions
PID:296

C:\Windows\SysWOW64\icacls.exe
C:\Windows\system32\icacls.exe C:\Windows\system32\Mode.exe /reset
3⤵
- Possible privilege escalation attempt
- Modifies file permissions
PID:2836

C:\Windows\SysWOW64\cmd.exe
cmd /c choice /t 10 /d y & attrib -h "C:\Users\Admin\AppData\Roaming\Mode" & del "C:\Users\Admin\AppData\Roaming\Mode"
3⤵
- Suspicious use of WriteProcessMemory
PID:1772

C:\Windows\SysWOW64\choice.exe
choice /t 10 /d y
4⤵
PID:1652

C:\Windows\SysWOW64\attrib.exe
attrib -h "C:\Users\Admin\AppData\Roaming\Mode"
4⤵
- Views/modifies file attributes
PID:276

C:\Windows\SysWOW64\cmd.exe
cmd /c choice /t 10 /d y & attrib -h "C:\Users\Admin\AppData\Local\Temp\8897db876553f942b2eb4005f8475a232bafb82a50ca7761a621842e894a3d80.exe" & del "C:\Users\Admin\AppData\Local\Temp\8897db876553f942b2eb4005f8475a232bafb82a50ca7761a621842e894a3d80.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:4024

C:\Windows\SysWOW64\choice.exe
choice /t 10 /d y
3⤵
PID:3544

C:\Windows\SysWOW64\attrib.exe
attrib -h "C:\Users\Admin\AppData\Local\Temp\8897db876553f942b2eb4005f8475a232bafb82a50ca7761a621842e894a3d80.exe"
3⤵
- Views/modifies file attributes
PID:1736

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
- Modifies service
PID:2392

C:\Windows\SysWOW64\Mode.exe
C:\Windows\SysWOW64\Mode.exe -s
1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3860

C:\Windows\SysWOW64\cmd.exe
cmd /c choice /t 10 /d y & attrib -h "C:\Windows\SysWOW64\Mode.exe" & del "C:\Windows\SysWOW64\Mode.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:3868

C:\Windows\SysWOW64\choice.exe
choice /t 10 /d y
3⤵
PID:4004

C:\Windows\SysWOW64\attrib.exe
attrib -h "C:\Windows\SysWOW64\Mode.exe"
3⤵
- Views/modifies file attributes
- Drops file in System32 directory
PID:256

C:\Windows\system32\NOTEPAD.EXE
"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\MoveDeny.mpeg3.eswasted_info.txt
1⤵
- Opens file in notepad (likely ransom note)
PID:1632