wastedlocker | 0e061255b12ade5dc10f4ad9aeca9ebe5496d28ed251acb376c66c1d9f405821

Analysis

max time kernel
29s
max time network
136s
platform
windows10_x64
resource
win10v20210408
submitted
26/07/2021, 13:00

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General

Target

0e061255b12ade5dc10f4ad9aeca9ebe5496d28ed251acb376c66c1d9f405821.sample.exe
Size

112KB
MD5

d01fc079881dc0d33a88e4f8df1ae7ce
SHA1

c40c8848808da12ef78c68de1e6477b862161a43
SHA256

0e061255b12ade5dc10f4ad9aeca9ebe5496d28ed251acb376c66c1d9f405821
SHA512

83bca79d1f0ac14c6d79685fd192964e7117e8c9c734036abddfdbb068c801ff38027a0812a2499e1d9e528a47af07150cafee27384b5a78b8fc32c23bd21130

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

resource	yara_rule
behavioral2/files/0x000100000001ab31-117.dat	cryptone
behavioral2/files/0x000100000001ab31-118.dat	cryptone
behavioral2/files/0x00030000000152f8-123.dat	cryptone
behavioral2/files/0x00030000000152f8-125.dat	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

pid	Process
2708	Product:bin
2200	Product.exe

Modifies extensions of user files 42 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

description	ioc	Process
File opened for modification	C:\Users\Admin\Pictures\FormatShow.tif.tcwwasted	Product.exe
File renamed	C:\Users\Admin\Pictures\MoveResolve.raw => C:\Users\Admin\Pictures\MoveResolve.raw.tcwwasted	Product.exe
File created	C:\Users\Admin\Pictures\RevokeInitialize.png.tcwwasted_info	Product.exe
File opened for modification	C:\Users\Admin\Pictures\RevokeInitialize.png.tcwwasted	Product.exe
File opened for modification	C:\Users\Admin\Pictures\RevokeMerge.tif.tcwwasted	Product.exe
File opened for modification	C:\Users\Admin\Pictures\RevokeTest.tif.tcwwasted	Product.exe
File renamed	C:\Users\Admin\Pictures\SubmitUndo.tif => C:\Users\Admin\Pictures\SubmitUndo.tif.tcwwasted	Product.exe
File created	C:\Users\Admin\Pictures\CompleteSelect.png.tcwwasted_info	Product.exe
File opened for modification	C:\Users\Admin\Pictures\UnlockEdit.crw.tcwwasted	Product.exe
File renamed	C:\Users\Admin\Pictures\UseLimit.tiff => C:\Users\Admin\Pictures\UseLimit.tiff.tcwwasted	Product.exe
File opened for modification	C:\Users\Admin\Pictures\UseLimit.tiff.tcwwasted	Product.exe
File created	C:\Users\Admin\Pictures\UseUndo.png.tcwwasted_info	Product.exe
File renamed	C:\Users\Admin\Pictures\StopBackup.png => C:\Users\Admin\Pictures\StopBackup.png.tcwwasted	Product.exe
File created	C:\Users\Admin\Pictures\FormatShow.tif.tcwwasted_info	Product.exe
File created	C:\Users\Admin\Pictures\ImportUninstall.tiff.tcwwasted_info	Product.exe
File opened for modification	C:\Users\Admin\Pictures\SubmitUndo.tif.tcwwasted	Product.exe
File created	C:\Users\Admin\Pictures\UnlockEdit.crw.tcwwasted_info	Product.exe
File opened for modification	C:\Users\Admin\Pictures\ConfirmRestore.tif.tcwwasted	Product.exe
File created	C:\Users\Admin\Pictures\StopBackup.png.tcwwasted_info	Product.exe
File created	C:\Users\Admin\Pictures\SubmitUndo.tif.tcwwasted_info	Product.exe
File renamed	C:\Users\Admin\Pictures\UnlockEdit.crw => C:\Users\Admin\Pictures\UnlockEdit.crw.tcwwasted	Product.exe
File renamed	C:\Users\Admin\Pictures\UseUndo.png => C:\Users\Admin\Pictures\UseUndo.png.tcwwasted	Product.exe
File opened for modification	C:\Users\Admin\Pictures\ImportUninstall.tiff.tcwwasted	Product.exe
File opened for modification	C:\Users\Admin\Pictures\CompleteSelect.png.tcwwasted	Product.exe
File renamed	C:\Users\Admin\Pictures\ImportUninstall.tiff => C:\Users\Admin\Pictures\ImportUninstall.tiff.tcwwasted	Product.exe
File created	C:\Users\Admin\Pictures\RevokeMerge.tif.tcwwasted_info	Product.exe
File opened for modification	C:\Users\Admin\Pictures\StopBackup.png.tcwwasted	Product.exe
File renamed	C:\Users\Admin\Pictures\CompleteSelect.png => C:\Users\Admin\Pictures\CompleteSelect.png.tcwwasted	Product.exe
File renamed	C:\Users\Admin\Pictures\PopUnregister.tif => C:\Users\Admin\Pictures\PopUnregister.tif.tcwwasted	Product.exe
File created	C:\Users\Admin\Pictures\RevokeTest.tif.tcwwasted_info	Product.exe
File opened for modification	C:\Users\Admin\Pictures\UseUndo.png.tcwwasted	Product.exe
File opened for modification	C:\Users\Admin\Pictures\MoveResolve.raw.tcwwasted	Product.exe
File renamed	C:\Users\Admin\Pictures\FormatShow.tif => C:\Users\Admin\Pictures\FormatShow.tif.tcwwasted	Product.exe
File opened for modification	C:\Users\Admin\Pictures\PopUnregister.tif.tcwwasted	Product.exe
File renamed	C:\Users\Admin\Pictures\RevokeMerge.tif => C:\Users\Admin\Pictures\RevokeMerge.tif.tcwwasted	Product.exe
File renamed	C:\Users\Admin\Pictures\ConfirmRestore.tif => C:\Users\Admin\Pictures\ConfirmRestore.tif.tcwwasted	Product.exe
File created	C:\Users\Admin\Pictures\PopUnregister.tif.tcwwasted_info	Product.exe
File created	C:\Users\Admin\Pictures\MoveResolve.raw.tcwwasted_info	Product.exe
File renamed	C:\Users\Admin\Pictures\RevokeInitialize.png => C:\Users\Admin\Pictures\RevokeInitialize.png.tcwwasted	Product.exe
File renamed	C:\Users\Admin\Pictures\RevokeTest.tif => C:\Users\Admin\Pictures\RevokeTest.tif.tcwwasted	Product.exe
File created	C:\Users\Admin\Pictures\UseLimit.tiff.tcwwasted_info	Product.exe
File created	C:\Users\Admin\Pictures\ConfirmRestore.tif.tcwwasted_info	Product.exe

Possible privilege escalation attempt 2 IoCs

exploit

pid	Process
4092	takeown.exe
2140	icacls.exe

Modifies file permissions 1 TTPs 2 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
4092	takeown.exe
2140	icacls.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\Product.exe	Product:bin
File opened for modification	C:\Windows\SysWOW64\Product.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

pid	Process
192	vssadmin.exe

NTFS ADS 1 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Product:bin	0e061255b12ade5dc10f4ad9aeca9ebe5496d28ed251acb376c66c1d9f405821.sample.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

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

Suspicious use of WriteProcessMemory 38 IoCs

description	pid	Process	procid_target
PID 580 wrote to memory of 2708	580	0e061255b12ade5dc10f4ad9aeca9ebe5496d28ed251acb376c66c1d9f405821.sample.exe	75
PID 580 wrote to memory of 2708	580	0e061255b12ade5dc10f4ad9aeca9ebe5496d28ed251acb376c66c1d9f405821.sample.exe	75
PID 580 wrote to memory of 2708	580	0e061255b12ade5dc10f4ad9aeca9ebe5496d28ed251acb376c66c1d9f405821.sample.exe	75
PID 2708 wrote to memory of 192	2708	Product:bin	76
PID 2708 wrote to memory of 192	2708	Product:bin	76
PID 2708 wrote to memory of 4092	2708	Product:bin	80
PID 2708 wrote to memory of 4092	2708	Product:bin	80
PID 2708 wrote to memory of 4092	2708	Product:bin	80
PID 2708 wrote to memory of 2140	2708	Product:bin	82
PID 2708 wrote to memory of 2140	2708	Product:bin	82
PID 2708 wrote to memory of 2140	2708	Product:bin	82
PID 2708 wrote to memory of 3504	2708	Product:bin	90
PID 2708 wrote to memory of 3504	2708	Product:bin	90
PID 2708 wrote to memory of 3504	2708	Product:bin	90
PID 2200 wrote to memory of 3780	2200	Product.exe	89
PID 2200 wrote to memory of 3780	2200	Product.exe	89
PID 2200 wrote to memory of 3780	2200	Product.exe	89
PID 580 wrote to memory of 3948	580	0e061255b12ade5dc10f4ad9aeca9ebe5496d28ed251acb376c66c1d9f405821.sample.exe	93
PID 580 wrote to memory of 3948	580	0e061255b12ade5dc10f4ad9aeca9ebe5496d28ed251acb376c66c1d9f405821.sample.exe	93
PID 580 wrote to memory of 3948	580	0e061255b12ade5dc10f4ad9aeca9ebe5496d28ed251acb376c66c1d9f405821.sample.exe	93
PID 3780 wrote to memory of 200	3780	cmd.exe	95
PID 3504 wrote to memory of 3560	3504	cmd.exe	94
PID 3780 wrote to memory of 200	3780	cmd.exe	95
PID 3504 wrote to memory of 3560	3504	cmd.exe	94
PID 3780 wrote to memory of 200	3780	cmd.exe	95
PID 3504 wrote to memory of 3560	3504	cmd.exe	94
PID 3948 wrote to memory of 960	3948	cmd.exe	97
PID 3948 wrote to memory of 960	3948	cmd.exe	97
PID 3948 wrote to memory of 960	3948	cmd.exe	97
PID 3948 wrote to memory of 192	3948	cmd.exe	99
PID 3948 wrote to memory of 192	3948	cmd.exe	99
PID 3948 wrote to memory of 192	3948	cmd.exe	99
PID 3780 wrote to memory of 2764	3780	cmd.exe	100
PID 3780 wrote to memory of 2764	3780	cmd.exe	100
PID 3780 wrote to memory of 2764	3780	cmd.exe	100
PID 3504 wrote to memory of 196	3504	cmd.exe	98
PID 3504 wrote to memory of 196	3504	cmd.exe	98
PID 3504 wrote to memory of 196	3504	cmd.exe	98

Views/modifies file attributes 1 TTPs 3 IoCs

evasion

Hidden Files and Directories

T1158

pid	Process
196	attrib.exe
192	attrib.exe
2764	attrib.exe

C:\Users\Admin\AppData\Local\Temp\0e061255b12ade5dc10f4ad9aeca9ebe5496d28ed251acb376c66c1d9f405821.sample.exe
"C:\Users\Admin\AppData\Local\Temp\0e061255b12ade5dc10f4ad9aeca9ebe5496d28ed251acb376c66c1d9f405821.sample.exe"
1⤵
- NTFS ADS
- Suspicious use of WriteProcessMemory
PID:580
- C:\Users\Admin\AppData\Roaming\Product:bin
  C:\Users\Admin\AppData\Roaming\Product:bin -r
  2⤵
  - Executes dropped EXE
  - Drops file in System32 directory
  - Suspicious use of WriteProcessMemory
  PID:2708
- - C:\Windows\system32\vssadmin.exe
    C:\Windows\system32\vssadmin.exe Delete Shadows /All /Quiet
    3⤵
    - Interacts with shadow copies
    PID:192
- - C:\Windows\SysWOW64\takeown.exe
    C:\Windows\system32\takeown.exe /F C:\Windows\system32\Product.exe
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:4092
- - C:\Windows\SysWOW64\icacls.exe
    C:\Windows\system32\icacls.exe C:\Windows\system32\Product.exe /reset
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:2140
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c choice /t 10 /d y & attrib -h "C:\Users\Admin\AppData\Roaming\Product" & del "C:\Users\Admin\AppData\Roaming\Product"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:3504
  - - C:\Windows\SysWOW64\choice.exe
      choice /t 10 /d y
      4⤵
      PID:3560
  - - C:\Windows\SysWOW64\attrib.exe
      attrib -h "C:\Users\Admin\AppData\Roaming\Product"
      4⤵
      Views/modifies file attributes
      PID:196
- C:\Windows\SysWOW64\cmd.exe
  cmd /c choice /t 10 /d y & attrib -h "C:\Users\Admin\AppData\Local\Temp\0e061255b12ade5dc10f4ad9aeca9ebe5496d28ed251acb376c66c1d9f405821.sample.exe" & del "C:\Users\Admin\AppData\Local\Temp\0e061255b12ade5dc10f4ad9aeca9ebe5496d28ed251acb376c66c1d9f405821.sample.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3948
- - C:\Windows\SysWOW64\choice.exe
    choice /t 10 /d y
    3⤵
    PID:960
- - C:\Windows\SysWOW64\attrib.exe
    attrib -h "C:\Users\Admin\AppData\Local\Temp\0e061255b12ade5dc10f4ad9aeca9ebe5496d28ed251acb376c66c1d9f405821.sample.exe"
    3⤵
    - Views/modifies file attributes
    PID:192

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

C:\Windows\SysWOW64\Product.exe
C:\Windows\SysWOW64\Product.exe -s
1⤵
- Executes dropped EXE
- Modifies extensions of user files
- Suspicious use of WriteProcessMemory
PID:2200
- C:\Windows\SysWOW64\cmd.exe
  cmd /c choice /t 10 /d y & attrib -h "C:\Windows\SysWOW64\Product.exe" & del "C:\Windows\SysWOW64\Product.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3780
- - C:\Windows\SysWOW64\choice.exe
    choice /t 10 /d y
    3⤵
    PID:200
- - C:\Windows\SysWOW64\attrib.exe
    attrib -h "C:\Windows\SysWOW64\Product.exe"
    3⤵
    - Drops file in System32 directory
    - Views/modifies file attributes
    PID:2764

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Hidden Files and Directories

T1158

Privilege Escalation

Defense Evasion

File Deletion

T1107

File and Directory Permissions Modification

T1222

Hidden Files and Directories

T1158

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Inhibit System Recovery

T1490

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Downloads

memory/580-115-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/580-114-0x0000000000580000-0x0000000000592000-memory.dmp

Filesize
72KB

Download
memory/2200-126-0x0000000000420000-0x00000000004CE000-memory.dmp

Filesize
696KB

Download
memory/2200-127-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/2708-120-0x0000000000420000-0x000000000056A000-memory.dmp

Filesize
1.3MB

Download
memory/2708-121-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads