wastedlocker | ef6b588a8b3d3ca409eb2ac15b38bfedcaf9f6bcede91e38b15ae6ba2ef9e518

General

Target

ef6b588a8b3d3ca409eb2ac15b38bfedcaf9f6bcede91e38b15ae6ba2ef9e518.exe
Size

113KB
MD5

0332ce73221dc1b6d26b5f5fa0f06318
SHA1

872e61c0a08c9dea4388d5c897b3d7ed3e8c13b7
SHA256

ef6b588a8b3d3ca409eb2ac15b38bfedcaf9f6bcede91e38b15ae6ba2ef9e518
SHA512

71482a7798e70ab8176d88e3bfaec0c823118aa19c21b7afdb69f5fd031a91fef4e3d04a05c0ac0752df5904be32e6a9895448f62ee23b015f5e563c29385702

Score

10^/10

wastedlocker cryptone discovery exploit packer ransomware

Malware Config

Signatures

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

CryptOne packer 4 IoCs

Detects CryptOne packer defined in NCC blogpost.

cryptone packer

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Roaming\File:bin	cryptone
C:\Users\Admin\AppData\Roaming\File:bin	cryptone
C:\Windows\SysWOW64\File.exe	cryptone
C:\Windows\SysWOW64\File.exe	cryptone

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:

File:binFile.exe

pid process

1796 File:bin
2016 File.exe

pid	process
1796	File:bin
2016	File.exe

Modifies extensions of user files 24 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

Processes:

File.exe

description	ioc	process
File created	C:\Users\Admin\Pictures\BackupTrace.tif.saverswasted_info	File.exe
File opened for modification	C:\Users\Admin\Pictures\BackupTrace.tif.saverswasted	File.exe
File created	C:\Users\Admin\Pictures\MergeApprove.tiff.saverswasted_info	File.exe
File created	C:\Users\Admin\Pictures\UnprotectBackup.crw.saverswasted_info	File.exe
File opened for modification	C:\Users\Admin\Pictures\UnprotectBackup.crw.saverswasted	File.exe
File opened for modification	C:\Users\Admin\Pictures\RevokeEdit.crw.saverswasted	File.exe
File opened for modification	C:\Users\Admin\Pictures\WatchPing.tiff.saverswasted	File.exe
File opened for modification	C:\Users\Admin\Pictures\AddGroup.png.saverswasted	File.exe
File renamed	C:\Users\Admin\Pictures\BackupTrace.tif => C:\Users\Admin\Pictures\BackupTrace.tif.saverswasted	File.exe
File renamed	C:\Users\Admin\Pictures\ConfirmSet.tif => C:\Users\Admin\Pictures\ConfirmSet.tif.saverswasted	File.exe
File opened for modification	C:\Users\Admin\Pictures\ConfirmSet.tif.saverswasted	File.exe
File renamed	C:\Users\Admin\Pictures\MergeApprove.tiff => C:\Users\Admin\Pictures\MergeApprove.tiff.saverswasted	File.exe
File renamed	C:\Users\Admin\Pictures\PopShow.crw => C:\Users\Admin\Pictures\PopShow.crw.saverswasted	File.exe
File created	C:\Users\Admin\Pictures\RevokeEdit.crw.saverswasted_info	File.exe
File created	C:\Users\Admin\Pictures\ConfirmSet.tif.saverswasted_info	File.exe
File created	C:\Users\Admin\Pictures\PopShow.crw.saverswasted_info	File.exe
File renamed	C:\Users\Admin\Pictures\UnprotectBackup.crw => C:\Users\Admin\Pictures\UnprotectBackup.crw.saverswasted	File.exe
File created	C:\Users\Admin\Pictures\WatchPing.tiff.saverswasted_info	File.exe
File created	C:\Users\Admin\Pictures\AddGroup.png.saverswasted_info	File.exe
File renamed	C:\Users\Admin\Pictures\AddGroup.png => C:\Users\Admin\Pictures\AddGroup.png.saverswasted	File.exe
File opened for modification	C:\Users\Admin\Pictures\MergeApprove.tiff.saverswasted	File.exe
File opened for modification	C:\Users\Admin\Pictures\PopShow.crw.saverswasted	File.exe
File renamed	C:\Users\Admin\Pictures\RevokeEdit.crw => C:\Users\Admin\Pictures\RevokeEdit.crw.saverswasted	File.exe
File renamed	C:\Users\Admin\Pictures\WatchPing.tiff => C:\Users\Admin\Pictures\WatchPing.tiff.saverswasted	File.exe

Possible privilege escalation attempt 2 IoCs
exploit

Processes:

takeown.exeicacls.exe

pid process

428 takeown.exe
916 icacls.exe
Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1468 cmd.exe

pid	process
428	takeown.exe
916	icacls.exe

pid	process
1468	cmd.exe

Loads dropped DLL 2 IoCs

Processes:

ef6b588a8b3d3ca409eb2ac15b38bfedcaf9f6bcede91e38b15ae6ba2ef9e518.exe

pid	process
792	ef6b588a8b3d3ca409eb2ac15b38bfedcaf9f6bcede91e38b15ae6ba2ef9e518.exe
792	ef6b588a8b3d3ca409eb2ac15b38bfedcaf9f6bcede91e38b15ae6ba2ef9e518.exe

Modifies file permissions 1 TTPs 2 IoCs
discovery

File Permissions Modification
T1222

Processes:

takeown.exeicacls.exe

pid process

428 takeown.exe
916 icacls.exe

pid	process
428	takeown.exe
916	icacls.exe

Drops file in System32 directory 2 IoCs

Processes:

File:binattrib.exe

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

1168 vssadmin.exe

pid	process
1168	vssadmin.exe

NTFS ADS 1 IoCs

Processes:

ef6b588a8b3d3ca409eb2ac15b38bfedcaf9f6bcede91e38b15ae6ba2ef9e518.exe

description	ioc	process
File opened for modification	C:\Users\Admin\AppData\Roaming\File:bin	ef6b588a8b3d3ca409eb2ac15b38bfedcaf9f6bcede91e38b15ae6ba2ef9e518.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

vssvc.exe

description pid process

Token: SeBackupPrivilege 1628 vssvc.exe
Token: SeRestorePrivilege 1628 vssvc.exe
Token: SeAuditPrivilege 1628 vssvc.exe
Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

notepad.exe

pid process

948 notepad.exe

description	pid	process
Token: SeBackupPrivilege	1628	vssvc.exe
Token: SeRestorePrivilege	1628	vssvc.exe
Token: SeAuditPrivilege	1628	vssvc.exe

pid	process
948	notepad.exe

Suspicious use of WriteProcessMemory 52 IoCs

Processes:

ef6b588a8b3d3ca409eb2ac15b38bfedcaf9f6bcede91e38b15ae6ba2ef9e518.exeFile:binFile.execmd.execmd.execmd.exe

description	pid	process	target process
PID 792 wrote to memory of 1796	792	ef6b588a8b3d3ca409eb2ac15b38bfedcaf9f6bcede91e38b15ae6ba2ef9e518.exe	File:bin
PID 792 wrote to memory of 1796	792	ef6b588a8b3d3ca409eb2ac15b38bfedcaf9f6bcede91e38b15ae6ba2ef9e518.exe	File:bin
PID 792 wrote to memory of 1796	792	ef6b588a8b3d3ca409eb2ac15b38bfedcaf9f6bcede91e38b15ae6ba2ef9e518.exe	File:bin
PID 792 wrote to memory of 1796	792	ef6b588a8b3d3ca409eb2ac15b38bfedcaf9f6bcede91e38b15ae6ba2ef9e518.exe	File:bin
PID 1796 wrote to memory of 1168	1796	File:bin	vssadmin.exe
PID 1796 wrote to memory of 1168	1796	File:bin	vssadmin.exe
PID 1796 wrote to memory of 1168	1796	File:bin	vssadmin.exe
PID 1796 wrote to memory of 1168	1796	File:bin	vssadmin.exe
PID 1796 wrote to memory of 428	1796	File:bin	takeown.exe
PID 1796 wrote to memory of 428	1796	File:bin	takeown.exe
PID 1796 wrote to memory of 428	1796	File:bin	takeown.exe
PID 1796 wrote to memory of 428	1796	File:bin	takeown.exe
PID 1796 wrote to memory of 916	1796	File:bin	icacls.exe
PID 1796 wrote to memory of 916	1796	File:bin	icacls.exe
PID 1796 wrote to memory of 916	1796	File:bin	icacls.exe
PID 1796 wrote to memory of 916	1796	File:bin	icacls.exe
PID 2016 wrote to memory of 1608	2016	File.exe	cmd.exe
PID 2016 wrote to memory of 1608	2016	File.exe	cmd.exe
PID 2016 wrote to memory of 1608	2016	File.exe	cmd.exe
PID 2016 wrote to memory of 1608	2016	File.exe	cmd.exe
PID 1796 wrote to memory of 1680	1796	File:bin	cmd.exe
PID 1796 wrote to memory of 1680	1796	File:bin	cmd.exe
PID 1796 wrote to memory of 1680	1796	File:bin	cmd.exe
PID 1796 wrote to memory of 1680	1796	File:bin	cmd.exe
PID 1608 wrote to memory of 1640	1608	cmd.exe	choice.exe
PID 1608 wrote to memory of 1640	1608	cmd.exe	choice.exe
PID 1608 wrote to memory of 1640	1608	cmd.exe	choice.exe
PID 1608 wrote to memory of 1640	1608	cmd.exe	choice.exe
PID 792 wrote to memory of 1468	792	ef6b588a8b3d3ca409eb2ac15b38bfedcaf9f6bcede91e38b15ae6ba2ef9e518.exe	cmd.exe
PID 792 wrote to memory of 1468	792	ef6b588a8b3d3ca409eb2ac15b38bfedcaf9f6bcede91e38b15ae6ba2ef9e518.exe	cmd.exe
PID 792 wrote to memory of 1468	792	ef6b588a8b3d3ca409eb2ac15b38bfedcaf9f6bcede91e38b15ae6ba2ef9e518.exe	cmd.exe
PID 792 wrote to memory of 1468	792	ef6b588a8b3d3ca409eb2ac15b38bfedcaf9f6bcede91e38b15ae6ba2ef9e518.exe	cmd.exe
PID 1680 wrote to memory of 1328	1680	cmd.exe	choice.exe
PID 1680 wrote to memory of 1328	1680	cmd.exe	choice.exe
PID 1680 wrote to memory of 1328	1680	cmd.exe	choice.exe
PID 1680 wrote to memory of 1328	1680	cmd.exe	choice.exe
PID 1468 wrote to memory of 2044	1468	cmd.exe	choice.exe
PID 1468 wrote to memory of 2044	1468	cmd.exe	choice.exe
PID 1468 wrote to memory of 2044	1468	cmd.exe	choice.exe
PID 1468 wrote to memory of 2044	1468	cmd.exe	choice.exe
PID 1608 wrote to memory of 208	1608	cmd.exe	attrib.exe
PID 1608 wrote to memory of 208	1608	cmd.exe	attrib.exe
PID 1608 wrote to memory of 208	1608	cmd.exe	attrib.exe
PID 1608 wrote to memory of 208	1608	cmd.exe	attrib.exe
PID 1680 wrote to memory of 228	1680	cmd.exe	attrib.exe
PID 1680 wrote to memory of 228	1680	cmd.exe	attrib.exe
PID 1680 wrote to memory of 228	1680	cmd.exe	attrib.exe
PID 1680 wrote to memory of 228	1680	cmd.exe	attrib.exe
PID 1468 wrote to memory of 220	1468	cmd.exe	attrib.exe
PID 1468 wrote to memory of 220	1468	cmd.exe	attrib.exe
PID 1468 wrote to memory of 220	1468	cmd.exe	attrib.exe
PID 1468 wrote to memory of 220	1468	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

220 attrib.exe
228 attrib.exe
208 attrib.exe

pid	process
220	attrib.exe
228	attrib.exe
208	attrib.exe

C:\Users\Admin\AppData\Local\Temp\ef6b588a8b3d3ca409eb2ac15b38bfedcaf9f6bcede91e38b15ae6ba2ef9e518.exe
"C:\Users\Admin\AppData\Local\Temp\ef6b588a8b3d3ca409eb2ac15b38bfedcaf9f6bcede91e38b15ae6ba2ef9e518.exe"
1⤵
- Loads dropped DLL
- NTFS ADS
- Suspicious use of WriteProcessMemory
PID:792

C:\Users\Admin\AppData\Roaming\File:bin
C:\Users\Admin\AppData\Roaming\File:bin -r
2⤵
- Executes dropped EXE
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:1796

C:\Windows\system32\vssadmin.exe
C:\Windows\system32\vssadmin.exe Delete Shadows /All /Quiet
3⤵
- Interacts with shadow copies
PID:1168

C:\Windows\SysWOW64\takeown.exe
C:\Windows\system32\takeown.exe /F C:\Windows\system32\File.exe
3⤵
- Possible privilege escalation attempt
- Modifies file permissions
PID:428

C:\Windows\SysWOW64\icacls.exe
C:\Windows\system32\icacls.exe C:\Windows\system32\File.exe /reset
3⤵
- Possible privilege escalation attempt
- Modifies file permissions
PID:916

C:\Windows\SysWOW64\cmd.exe
cmd /c choice /t 10 /d y & attrib -h "C:\Users\Admin\AppData\Roaming\File" & del "C:\Users\Admin\AppData\Roaming\File"
3⤵
- Suspicious use of WriteProcessMemory
PID:1680

C:\Windows\SysWOW64\choice.exe
choice /t 10 /d y
4⤵
PID:1328

C:\Windows\SysWOW64\attrib.exe
attrib -h "C:\Users\Admin\AppData\Roaming\File"
4⤵
- Views/modifies file attributes
PID:228

C:\Windows\SysWOW64\cmd.exe
cmd /c choice /t 10 /d y & attrib -h "C:\Users\Admin\AppData\Local\Temp\ef6b588a8b3d3ca409eb2ac15b38bfedcaf9f6bcede91e38b15ae6ba2ef9e518.exe" & del "C:\Users\Admin\AppData\Local\Temp\ef6b588a8b3d3ca409eb2ac15b38bfedcaf9f6bcede91e38b15ae6ba2ef9e518.exe"
2⤵
- Deletes itself
- Suspicious use of WriteProcessMemory
PID:1468

C:\Windows\SysWOW64\choice.exe
choice /t 10 /d y
3⤵
PID:2044

C:\Windows\SysWOW64\attrib.exe
attrib -h "C:\Users\Admin\AppData\Local\Temp\ef6b588a8b3d3ca409eb2ac15b38bfedcaf9f6bcede91e38b15ae6ba2ef9e518.exe"
3⤵
- Views/modifies file attributes
PID:220

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1628

C:\Windows\SysWOW64\File.exe
C:\Windows\SysWOW64\File.exe -s
1⤵
- Executes dropped EXE
- Modifies extensions of user files
- Suspicious use of WriteProcessMemory
PID:2016

C:\Windows\SysWOW64\cmd.exe
cmd /c choice /t 10 /d y & attrib -h "C:\Windows\SysWOW64\File.exe" & del "C:\Windows\SysWOW64\File.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:1608

C:\Windows\SysWOW64\choice.exe
choice /t 10 /d y
3⤵
PID:1640

C:\Windows\SysWOW64\attrib.exe
attrib -h "C:\Windows\SysWOW64\File.exe"
3⤵
- Drops file in System32 directory
- Views/modifies file attributes
PID:208

C:\Windows\system32\notepad.exe
"C:\Windows\system32\notepad.exe"
1⤵
- Suspicious use of FindShellTrayWindow
PID:948

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Hidden Files and Directories

1

T1158

Privilege Escalation

Defense Evasion

File Deletion

2

T1107

File Permissions Modification

1

T1222

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\File:bin
MD5
0332ce73221dc1b6d26b5f5fa0f06318

SHA1
872e61c0a08c9dea4388d5c897b3d7ed3e8c13b7

SHA256
ef6b588a8b3d3ca409eb2ac15b38bfedcaf9f6bcede91e38b15ae6ba2ef9e518

SHA512
71482a7798e70ab8176d88e3bfaec0c823118aa19c21b7afdb69f5fd031a91fef4e3d04a05c0ac0752df5904be32e6a9895448f62ee23b015f5e563c29385702

Download Submit
C:\Users\Admin\AppData\Roaming\File:bin
MD5
0332ce73221dc1b6d26b5f5fa0f06318

SHA1
872e61c0a08c9dea4388d5c897b3d7ed3e8c13b7

SHA256
ef6b588a8b3d3ca409eb2ac15b38bfedcaf9f6bcede91e38b15ae6ba2ef9e518

SHA512
71482a7798e70ab8176d88e3bfaec0c823118aa19c21b7afdb69f5fd031a91fef4e3d04a05c0ac0752df5904be32e6a9895448f62ee23b015f5e563c29385702

Download Submit
C:\Users\Admin\Desktop\ConnectCompare.mov.saverswasted_info
MD5
7a40df8d00f8d78778a9536302385175

SHA1
14a913314356952d098f412c1bb6b506b0fb11bf

SHA256
2a44b60dbc6edd8ad9d21ae1a26d92dfe039c41654880d2d5aad04f7332df1c1

SHA512
af8f2c95a8edfc6abcc26c7ed722737664edfac97a1db37b01e4c72272e622addf413c6a4736bf9fe8ad03d618fa63381c912429af8fa2475541ab747e41247a

Download Submit
C:\Windows\SysWOW64\File.exe
MD5
0332ce73221dc1b6d26b5f5fa0f06318

SHA1
872e61c0a08c9dea4388d5c897b3d7ed3e8c13b7

SHA256
ef6b588a8b3d3ca409eb2ac15b38bfedcaf9f6bcede91e38b15ae6ba2ef9e518

SHA512
71482a7798e70ab8176d88e3bfaec0c823118aa19c21b7afdb69f5fd031a91fef4e3d04a05c0ac0752df5904be32e6a9895448f62ee23b015f5e563c29385702

Download Submit
C:\Windows\SysWOW64\File.exe
MD5
0332ce73221dc1b6d26b5f5fa0f06318

SHA1
872e61c0a08c9dea4388d5c897b3d7ed3e8c13b7

SHA256
ef6b588a8b3d3ca409eb2ac15b38bfedcaf9f6bcede91e38b15ae6ba2ef9e518

SHA512
71482a7798e70ab8176d88e3bfaec0c823118aa19c21b7afdb69f5fd031a91fef4e3d04a05c0ac0752df5904be32e6a9895448f62ee23b015f5e563c29385702

Download Submit
\Users\Admin\AppData\Roaming\File
MD5
fd52c1321514bb28fb2781247dd61cd1

SHA1
53aaf7461928e9451d3fb327db2502112919883c

SHA256
103befe077c8708b2ea33902729b246208ceb8ec7e8db8c07f77ab906830effa

SHA512
19fa091a6f30581b962c2df111cc33cbae68c8ba5a14ce7c487589029d421aba43770cff7bda58d7ecc0e293bb00945ea6e4787cc50d83c365a2f90d666e4181

Download Submit
\Users\Admin\AppData\Roaming\File
MD5
fd52c1321514bb28fb2781247dd61cd1

SHA1
53aaf7461928e9451d3fb327db2502112919883c

SHA256
103befe077c8708b2ea33902729b246208ceb8ec7e8db8c07f77ab906830effa

SHA512
19fa091a6f30581b962c2df111cc33cbae68c8ba5a14ce7c487589029d421aba43770cff7bda58d7ecc0e293bb00945ea6e4787cc50d83c365a2f90d666e4181

Download Submit
memory/208-86-0x0000000000000000-mapping.dmp

Download
memory/220-88-0x0000000000000000-mapping.dmp

Download
memory/228-87-0x0000000000000000-mapping.dmp

Download
memory/428-72-0x0000000000000000-mapping.dmp

Download
memory/792-62-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/792-61-0x0000000000220000-0x0000000000232000-memory.dmp

Filesize
72KB

Download
memory/792-60-0x0000000075041000-0x0000000075043000-memory.dmp

Filesize
8KB

Download
memory/916-74-0x0000000000000000-mapping.dmp

Download
memory/948-85-0x000007FEFB561000-0x000007FEFB563000-memory.dmp

Filesize
8KB

Download
memory/1168-68-0x0000000000000000-mapping.dmp

Download
memory/1328-83-0x0000000000000000-mapping.dmp

Download
memory/1468-82-0x0000000000000000-mapping.dmp

Download
memory/1608-79-0x0000000000000000-mapping.dmp

Download
memory/1640-81-0x0000000000000000-mapping.dmp

Download
memory/1680-80-0x0000000000000000-mapping.dmp

Download
memory/1796-70-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/1796-65-0x0000000000000000-mapping.dmp

Download
memory/2016-78-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/2044-84-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads