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\Remote:bin	cryptone
C:\Users\Admin\AppData\Roaming\Remote:bin	cryptone
C:\Windows\SysWOW64\Remote.exe	cryptone
C:\Windows\SysWOW64\Remote.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:

Remote:binRemote.exe

pid process

2448 Remote:bin
3292 Remote.exe

pid	process
2448	Remote:bin
3292	Remote.exe

Modifies extensions of user files 21 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

Processes:

Remote.exe

description	ioc	process
File renamed	C:\Users\Admin\Pictures\RenameJoin.tif => C:\Users\Admin\Pictures\RenameJoin.tif.saverswasted	Remote.exe
File renamed	C:\Users\Admin\Pictures\SyncClear.tif => C:\Users\Admin\Pictures\SyncClear.tif.saverswasted	Remote.exe
File opened for modification	C:\Users\Admin\Pictures\InitializeExit.crw.saverswasted	Remote.exe
File opened for modification	C:\Users\Admin\Pictures\OutStep.png.saverswasted	Remote.exe
File opened for modification	C:\Users\Admin\Pictures\RenameJoin.tif.saverswasted	Remote.exe
File created	C:\Users\Admin\Pictures\SyncClear.tif.saverswasted_info	Remote.exe
File opened for modification	C:\Users\Admin\Pictures\SubmitUnpublish.tiff.saverswasted	Remote.exe
File opened for modification	C:\Users\Admin\Pictures\SyncClear.tif.saverswasted	Remote.exe
File renamed	C:\Users\Admin\Pictures\EnableHide.tiff => C:\Users\Admin\Pictures\EnableHide.tiff.saverswasted	Remote.exe
File opened for modification	C:\Users\Admin\Pictures\EnableHide.tiff.saverswasted	Remote.exe
File created	C:\Users\Admin\Pictures\InitializeExit.crw.saverswasted_info	Remote.exe
File created	C:\Users\Admin\Pictures\OutStep.png.saverswasted_info	Remote.exe
File renamed	C:\Users\Admin\Pictures\OutStep.png => C:\Users\Admin\Pictures\OutStep.png.saverswasted	Remote.exe
File created	C:\Users\Admin\Pictures\SetUse.tiff.saverswasted_info	Remote.exe
File renamed	C:\Users\Admin\Pictures\SetUse.tiff => C:\Users\Admin\Pictures\SetUse.tiff.saverswasted	Remote.exe
File opened for modification	C:\Users\Admin\Pictures\SetUse.tiff.saverswasted	Remote.exe
File created	C:\Users\Admin\Pictures\EnableHide.tiff.saverswasted_info	Remote.exe
File renamed	C:\Users\Admin\Pictures\SubmitUnpublish.tiff => C:\Users\Admin\Pictures\SubmitUnpublish.tiff.saverswasted	Remote.exe
File created	C:\Users\Admin\Pictures\RenameJoin.tif.saverswasted_info	Remote.exe
File created	C:\Users\Admin\Pictures\SubmitUnpublish.tiff.saverswasted_info	Remote.exe
File renamed	C:\Users\Admin\Pictures\InitializeExit.crw => C:\Users\Admin\Pictures\InitializeExit.crw.saverswasted	Remote.exe

Possible privilege escalation attempt 2 IoCs
exploit

Processes:

takeown.exeicacls.exe

pid process

1332 takeown.exe
2184 icacls.exe
Modifies file permissions 1 TTPs 2 IoCs
discovery

File Permissions Modification
T1222

Processes:

takeown.exeicacls.exe

pid process

1332 takeown.exe
2184 icacls.exe

pid	process
1332	takeown.exe
2184	icacls.exe

pid	process
1332	takeown.exe
2184	icacls.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

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

2728 vssadmin.exe

pid	process
2728	vssadmin.exe

NTFS ADS 1 IoCs

Processes:

ef6b588a8b3d3ca409eb2ac15b38bfedcaf9f6bcede91e38b15ae6ba2ef9e518.exe

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

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

vssvc.exe

description pid process

Token: SeBackupPrivilege 1940 vssvc.exe
Token: SeRestorePrivilege 1940 vssvc.exe
Token: SeAuditPrivilege 1940 vssvc.exe

description	pid	process
Token: SeBackupPrivilege	1940	vssvc.exe
Token: SeRestorePrivilege	1940	vssvc.exe
Token: SeAuditPrivilege	1940	vssvc.exe

Suspicious use of WriteProcessMemory 38 IoCs

Processes:

ef6b588a8b3d3ca409eb2ac15b38bfedcaf9f6bcede91e38b15ae6ba2ef9e518.exeRemote:binRemote.execmd.execmd.execmd.exe

description	pid	process	target process
PID 3180 wrote to memory of 2448	3180	ef6b588a8b3d3ca409eb2ac15b38bfedcaf9f6bcede91e38b15ae6ba2ef9e518.exe	Remote:bin
PID 3180 wrote to memory of 2448	3180	ef6b588a8b3d3ca409eb2ac15b38bfedcaf9f6bcede91e38b15ae6ba2ef9e518.exe	Remote:bin
PID 3180 wrote to memory of 2448	3180	ef6b588a8b3d3ca409eb2ac15b38bfedcaf9f6bcede91e38b15ae6ba2ef9e518.exe	Remote:bin
PID 2448 wrote to memory of 2728	2448	Remote:bin	vssadmin.exe
PID 2448 wrote to memory of 2728	2448	Remote:bin	vssadmin.exe
PID 2448 wrote to memory of 1332	2448	Remote:bin	takeown.exe
PID 2448 wrote to memory of 1332	2448	Remote:bin	takeown.exe
PID 2448 wrote to memory of 1332	2448	Remote:bin	takeown.exe
PID 2448 wrote to memory of 2184	2448	Remote:bin	icacls.exe
PID 2448 wrote to memory of 2184	2448	Remote:bin	icacls.exe
PID 2448 wrote to memory of 2184	2448	Remote:bin	icacls.exe
PID 3292 wrote to memory of 4080	3292	Remote.exe	cmd.exe
PID 3292 wrote to memory of 4080	3292	Remote.exe	cmd.exe
PID 3292 wrote to memory of 4080	3292	Remote.exe	cmd.exe
PID 4080 wrote to memory of 268	4080	cmd.exe	choice.exe
PID 4080 wrote to memory of 268	4080	cmd.exe	choice.exe
PID 4080 wrote to memory of 268	4080	cmd.exe	choice.exe
PID 2448 wrote to memory of 3528	2448	Remote:bin	cmd.exe
PID 2448 wrote to memory of 3528	2448	Remote:bin	cmd.exe
PID 2448 wrote to memory of 3528	2448	Remote:bin	cmd.exe
PID 3180 wrote to memory of 2708	3180	ef6b588a8b3d3ca409eb2ac15b38bfedcaf9f6bcede91e38b15ae6ba2ef9e518.exe	cmd.exe
PID 3180 wrote to memory of 2708	3180	ef6b588a8b3d3ca409eb2ac15b38bfedcaf9f6bcede91e38b15ae6ba2ef9e518.exe	cmd.exe
PID 3180 wrote to memory of 2708	3180	ef6b588a8b3d3ca409eb2ac15b38bfedcaf9f6bcede91e38b15ae6ba2ef9e518.exe	cmd.exe
PID 3528 wrote to memory of 2180	3528	cmd.exe	choice.exe
PID 3528 wrote to memory of 2180	3528	cmd.exe	choice.exe
PID 3528 wrote to memory of 2180	3528	cmd.exe	choice.exe
PID 2708 wrote to memory of 3048	2708	cmd.exe	choice.exe
PID 2708 wrote to memory of 3048	2708	cmd.exe	choice.exe
PID 2708 wrote to memory of 3048	2708	cmd.exe	choice.exe
PID 4080 wrote to memory of 1376	4080	cmd.exe	attrib.exe
PID 4080 wrote to memory of 1376	4080	cmd.exe	attrib.exe
PID 4080 wrote to memory of 1376	4080	cmd.exe	attrib.exe
PID 3528 wrote to memory of 1916	3528	cmd.exe	attrib.exe
PID 3528 wrote to memory of 1916	3528	cmd.exe	attrib.exe
PID 3528 wrote to memory of 1916	3528	cmd.exe	attrib.exe
PID 2708 wrote to memory of 3852	2708	cmd.exe	attrib.exe
PID 2708 wrote to memory of 3852	2708	cmd.exe	attrib.exe
PID 2708 wrote to memory of 3852	2708	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

1376 attrib.exe
1916 attrib.exe
3852 attrib.exe

pid	process
1376	attrib.exe
1916	attrib.exe
3852	attrib.exe

C:\Users\Admin\AppData\Local\Temp\ef6b588a8b3d3ca409eb2ac15b38bfedcaf9f6bcede91e38b15ae6ba2ef9e518.exe
"C:\Users\Admin\AppData\Local\Temp\ef6b588a8b3d3ca409eb2ac15b38bfedcaf9f6bcede91e38b15ae6ba2ef9e518.exe"
1⤵
- NTFS ADS
- Suspicious use of WriteProcessMemory
PID:3180

C:\Users\Admin\AppData\Roaming\Remote:bin
C:\Users\Admin\AppData\Roaming\Remote:bin -r
2⤵
- Executes dropped EXE
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:2448

C:\Windows\system32\vssadmin.exe
C:\Windows\system32\vssadmin.exe Delete Shadows /All /Quiet
3⤵
- Interacts with shadow copies
PID:2728

C:\Windows\SysWOW64\takeown.exe
C:\Windows\system32\takeown.exe /F C:\Windows\system32\Remote.exe
3⤵
- Possible privilege escalation attempt
- Modifies file permissions
PID:1332

C:\Windows\SysWOW64\icacls.exe
C:\Windows\system32\icacls.exe C:\Windows\system32\Remote.exe /reset
3⤵
- Possible privilege escalation attempt
- Modifies file permissions
PID:2184

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:3528

C:\Windows\SysWOW64\choice.exe
choice /t 10 /d y
4⤵
PID:2180

C:\Windows\SysWOW64\attrib.exe
attrib -h "C:\Users\Admin\AppData\Roaming\Remote"
4⤵
- Views/modifies file attributes
PID:1916

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⤵
- Suspicious use of WriteProcessMemory
PID:2708

C:\Windows\SysWOW64\choice.exe
choice /t 10 /d y
3⤵
PID:3048

C:\Windows\SysWOW64\attrib.exe
attrib -h "C:\Users\Admin\AppData\Local\Temp\ef6b588a8b3d3ca409eb2ac15b38bfedcaf9f6bcede91e38b15ae6ba2ef9e518.exe"
3⤵
- Views/modifies file attributes
PID:3852

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1940

C:\Windows\SysWOW64\Remote.exe
C:\Windows\SysWOW64\Remote.exe -s
1⤵
- Executes dropped EXE
- Modifies extensions of user files
- Suspicious use of WriteProcessMemory
PID:3292

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:4080

C:\Windows\SysWOW64\choice.exe
choice /t 10 /d y
3⤵
PID:268

C:\Windows\SysWOW64\attrib.exe
attrib -h "C:\Windows\SysWOW64\Remote.exe"
3⤵
- Drops file in System32 directory
- Views/modifies file attributes
PID:1376

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\Remote:bin
MD5
0332ce73221dc1b6d26b5f5fa0f06318

SHA1
872e61c0a08c9dea4388d5c897b3d7ed3e8c13b7

SHA256
ef6b588a8b3d3ca409eb2ac15b38bfedcaf9f6bcede91e38b15ae6ba2ef9e518

SHA512
71482a7798e70ab8176d88e3bfaec0c823118aa19c21b7afdb69f5fd031a91fef4e3d04a05c0ac0752df5904be32e6a9895448f62ee23b015f5e563c29385702

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

SHA1
872e61c0a08c9dea4388d5c897b3d7ed3e8c13b7

SHA256
ef6b588a8b3d3ca409eb2ac15b38bfedcaf9f6bcede91e38b15ae6ba2ef9e518

SHA512
71482a7798e70ab8176d88e3bfaec0c823118aa19c21b7afdb69f5fd031a91fef4e3d04a05c0ac0752df5904be32e6a9895448f62ee23b015f5e563c29385702

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

SHA1
872e61c0a08c9dea4388d5c897b3d7ed3e8c13b7

SHA256
ef6b588a8b3d3ca409eb2ac15b38bfedcaf9f6bcede91e38b15ae6ba2ef9e518

SHA512
71482a7798e70ab8176d88e3bfaec0c823118aa19c21b7afdb69f5fd031a91fef4e3d04a05c0ac0752df5904be32e6a9895448f62ee23b015f5e563c29385702

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

SHA1
872e61c0a08c9dea4388d5c897b3d7ed3e8c13b7

SHA256
ef6b588a8b3d3ca409eb2ac15b38bfedcaf9f6bcede91e38b15ae6ba2ef9e518

SHA512
71482a7798e70ab8176d88e3bfaec0c823118aa19c21b7afdb69f5fd031a91fef4e3d04a05c0ac0752df5904be32e6a9895448f62ee23b015f5e563c29385702

Download Submit
memory/268-129-0x0000000000000000-mapping.dmp

Download
memory/1332-120-0x0000000000000000-mapping.dmp

Download
memory/1376-134-0x0000000000000000-mapping.dmp

Download
memory/1916-135-0x0000000000000000-mapping.dmp

Download
memory/2180-132-0x0000000000000000-mapping.dmp

Download
memory/2184-122-0x0000000000000000-mapping.dmp

Download
memory/2448-116-0x0000000000000000-mapping.dmp

Download
memory/2448-125-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/2448-124-0x0000000002020000-0x0000000002032000-memory.dmp

Filesize
72KB

Download
memory/2708-131-0x0000000000000000-mapping.dmp

Download
memory/2728-119-0x0000000000000000-mapping.dmp

Download
memory/3048-133-0x0000000000000000-mapping.dmp

Download
memory/3180-114-0x0000000000420000-0x00000000004CE000-memory.dmp

Filesize
696KB

Download
memory/3180-115-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/3292-127-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/3528-130-0x0000000000000000-mapping.dmp

Download
memory/3852-136-0x0000000000000000-mapping.dmp

Download
memory/4080-128-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads