wastedlocker | 5cd04805f9753ca08b82e88c27bf5426d1d356bb26b281885573051048911367

Analysis

max time kernel
37s
max time network
125s
platform
windows10_x64
resource
win10v20210408
submitted
26/07/2021, 12:42

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General

Target

5cd04805f9753ca08b82e88c27bf5426d1d356bb26b281885573051048911367.sample.exe
Size

1.0MB
MD5

572fea5f025df78f2d316216fbeee52e
SHA1

91b2bf44b1f9282c09f07f16631deaa3ad9d956d
SHA256

5cd04805f9753ca08b82e88c27bf5426d1d356bb26b281885573051048911367
SHA512

eb238272227c5825477ff1e37dc4f7e467665049d4db5649fff59c39d7745e88b06234d6d1218c05c802e33e21577f9d4a533cb9e23ebe6fb09654f97759c187

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/0x000200000001ab27-117.dat	cryptone
behavioral2/files/0x000200000001ab27-118.dat	cryptone
behavioral2/files/0x00030000000152f8-122.dat	cryptone
behavioral2/files/0x00030000000152f8-124.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
4068	D80:bin
2276	D80.exe

Modifies extensions of user files 30 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

description	ioc	Process
File renamed	C:\Users\Admin\Pictures\ApproveOptimize.tif => C:\Users\Admin\Pictures\ApproveOptimize.tif.rlhwasted	D80.exe
File renamed	C:\Users\Admin\Pictures\CompareRename.tif => C:\Users\Admin\Pictures\CompareRename.tif.rlhwasted	D80.exe
File opened for modification	C:\Users\Admin\Pictures\CompareRename.tif.rlhwasted	D80.exe
File created	C:\Users\Admin\Pictures\RestartUse.raw.rlhwasted_info	D80.exe
File renamed	C:\Users\Admin\Pictures\ReadResize.crw => C:\Users\Admin\Pictures\ReadResize.crw.rlhwasted	D80.exe
File created	C:\Users\Admin\Pictures\ReceiveUnpublish.tiff.rlhwasted_info	D80.exe
File opened for modification	C:\Users\Admin\Pictures\ResetExport.raw.rlhwasted	D80.exe
File renamed	C:\Users\Admin\Pictures\RestartUse.raw => C:\Users\Admin\Pictures\RestartUse.raw.rlhwasted	D80.exe
File renamed	C:\Users\Admin\Pictures\PingInvoke.png => C:\Users\Admin\Pictures\PingInvoke.png.rlhwasted	D80.exe
File created	C:\Users\Admin\Pictures\ResetExport.raw.rlhwasted_info	D80.exe
File created	C:\Users\Admin\Pictures\ResetRepair.png.rlhwasted_info	D80.exe
File created	C:\Users\Admin\Pictures\ApproveOptimize.tif.rlhwasted_info	D80.exe
File renamed	C:\Users\Admin\Pictures\CloseResume.tif => C:\Users\Admin\Pictures\CloseResume.tif.rlhwasted	D80.exe
File created	C:\Users\Admin\Pictures\PingInvoke.png.rlhwasted_info	D80.exe
File opened for modification	C:\Users\Admin\Pictures\ReadResize.crw.rlhwasted	D80.exe
File renamed	C:\Users\Admin\Pictures\ResetRepair.png => C:\Users\Admin\Pictures\ResetRepair.png.rlhwasted	D80.exe
File opened for modification	C:\Users\Admin\Pictures\CloseResume.tif.rlhwasted	D80.exe
File opened for modification	C:\Users\Admin\Pictures\ResetRepair.png.rlhwasted	D80.exe
File opened for modification	C:\Users\Admin\Pictures\ResumeConvertFrom.tiff.rlhwasted	D80.exe
File opened for modification	C:\Users\Admin\Pictures\ApproveOptimize.tif.rlhwasted	D80.exe
File opened for modification	C:\Users\Admin\Pictures\PingInvoke.png.rlhwasted	D80.exe
File renamed	C:\Users\Admin\Pictures\ReceiveUnpublish.tiff => C:\Users\Admin\Pictures\ReceiveUnpublish.tiff.rlhwasted	D80.exe
File created	C:\Users\Admin\Pictures\CloseResume.tif.rlhwasted_info	D80.exe
File created	C:\Users\Admin\Pictures\ReadResize.crw.rlhwasted_info	D80.exe
File opened for modification	C:\Users\Admin\Pictures\ReceiveUnpublish.tiff.rlhwasted	D80.exe
File renamed	C:\Users\Admin\Pictures\ResetExport.raw => C:\Users\Admin\Pictures\ResetExport.raw.rlhwasted	D80.exe
File created	C:\Users\Admin\Pictures\ResumeConvertFrom.tiff.rlhwasted_info	D80.exe
File created	C:\Users\Admin\Pictures\CompareRename.tif.rlhwasted_info	D80.exe
File opened for modification	C:\Users\Admin\Pictures\RestartUse.raw.rlhwasted	D80.exe
File renamed	C:\Users\Admin\Pictures\ResumeConvertFrom.tiff => C:\Users\Admin\Pictures\ResumeConvertFrom.tiff.rlhwasted	D80.exe

Possible privilege escalation attempt 2 IoCs

exploit

pid	Process
2784	takeown.exe
3052	icacls.exe

Modifies file permissions 1 TTPs 2 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
2784	takeown.exe
3052	icacls.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\D80.exe	D80:bin
File opened for modification	C:\Windows\SysWOW64\D80.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
3484	vssadmin.exe

NTFS ADS 1 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\D80:bin	5cd04805f9753ca08b82e88c27bf5426d1d356bb26b281885573051048911367.sample.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeBackupPrivilege	4016	vssvc.exe
Token: SeRestorePrivilege	4016	vssvc.exe
Token: SeAuditPrivilege	4016	vssvc.exe

Suspicious use of WriteProcessMemory 38 IoCs

description	pid	Process	procid_target
PID 656 wrote to memory of 4068	656	5cd04805f9753ca08b82e88c27bf5426d1d356bb26b281885573051048911367.sample.exe	75
PID 656 wrote to memory of 4068	656	5cd04805f9753ca08b82e88c27bf5426d1d356bb26b281885573051048911367.sample.exe	75
PID 656 wrote to memory of 4068	656	5cd04805f9753ca08b82e88c27bf5426d1d356bb26b281885573051048911367.sample.exe	75
PID 4068 wrote to memory of 3484	4068	D80:bin	76
PID 4068 wrote to memory of 3484	4068	D80:bin	76
PID 4068 wrote to memory of 2784	4068	D80:bin	80
PID 4068 wrote to memory of 2784	4068	D80:bin	80
PID 4068 wrote to memory of 2784	4068	D80:bin	80
PID 4068 wrote to memory of 3052	4068	D80:bin	82
PID 4068 wrote to memory of 3052	4068	D80:bin	82
PID 4068 wrote to memory of 3052	4068	D80:bin	82
PID 2276 wrote to memory of 2100	2276	D80.exe	89
PID 2276 wrote to memory of 2100	2276	D80.exe	89
PID 2276 wrote to memory of 2100	2276	D80.exe	89
PID 4068 wrote to memory of 2308	4068	D80:bin	91
PID 4068 wrote to memory of 2308	4068	D80:bin	91
PID 4068 wrote to memory of 2308	4068	D80:bin	91
PID 656 wrote to memory of 2144	656	5cd04805f9753ca08b82e88c27bf5426d1d356bb26b281885573051048911367.sample.exe	93
PID 656 wrote to memory of 2144	656	5cd04805f9753ca08b82e88c27bf5426d1d356bb26b281885573051048911367.sample.exe	93
PID 656 wrote to memory of 2144	656	5cd04805f9753ca08b82e88c27bf5426d1d356bb26b281885573051048911367.sample.exe	93
PID 2100 wrote to memory of 904	2100	cmd.exe	95
PID 2100 wrote to memory of 904	2100	cmd.exe	95
PID 2100 wrote to memory of 904	2100	cmd.exe	95
PID 2308 wrote to memory of 3708	2308	cmd.exe	96
PID 2308 wrote to memory of 3708	2308	cmd.exe	96
PID 2308 wrote to memory of 3708	2308	cmd.exe	96
PID 2144 wrote to memory of 3496	2144	cmd.exe	97
PID 2144 wrote to memory of 3496	2144	cmd.exe	97
PID 2144 wrote to memory of 3496	2144	cmd.exe	97
PID 2100 wrote to memory of 3192	2100	cmd.exe	98
PID 2100 wrote to memory of 3192	2100	cmd.exe	98
PID 2100 wrote to memory of 3192	2100	cmd.exe	98
PID 2308 wrote to memory of 3728	2308	cmd.exe	99
PID 2308 wrote to memory of 3728	2308	cmd.exe	99
PID 2308 wrote to memory of 3728	2308	cmd.exe	99
PID 2144 wrote to memory of 264	2144	cmd.exe	100
PID 2144 wrote to memory of 264	2144	cmd.exe	100
PID 2144 wrote to memory of 264	2144	cmd.exe	100

Views/modifies file attributes 1 TTPs 3 IoCs

evasion

Hidden Files and Directories

T1158

pid	Process
3192	attrib.exe
3728	attrib.exe
264	attrib.exe

C:\Users\Admin\AppData\Local\Temp\5cd04805f9753ca08b82e88c27bf5426d1d356bb26b281885573051048911367.sample.exe
"C:\Users\Admin\AppData\Local\Temp\5cd04805f9753ca08b82e88c27bf5426d1d356bb26b281885573051048911367.sample.exe"
1⤵
- NTFS ADS
- Suspicious use of WriteProcessMemory
PID:656
- C:\Users\Admin\AppData\Roaming\D80:bin
  C:\Users\Admin\AppData\Roaming\D80:bin -r
  2⤵
  - Executes dropped EXE
  - Drops file in System32 directory
  - Suspicious use of WriteProcessMemory
  PID:4068
- - C:\Windows\system32\vssadmin.exe
    C:\Windows\system32\vssadmin.exe Delete Shadows /All /Quiet
    3⤵
    - Interacts with shadow copies
    PID:3484
- - C:\Windows\SysWOW64\takeown.exe
    C:\Windows\system32\takeown.exe /F C:\Windows\system32\D80.exe
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:2784
- - C:\Windows\SysWOW64\icacls.exe
    C:\Windows\system32\icacls.exe C:\Windows\system32\D80.exe /reset
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:3052
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c choice /t 10 /d y & attrib -h "C:\Users\Admin\AppData\Roaming\D80" & del "C:\Users\Admin\AppData\Roaming\D80"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2308
  - - C:\Windows\SysWOW64\choice.exe
      choice /t 10 /d y
      4⤵
      PID:3708
  - - C:\Windows\SysWOW64\attrib.exe
      attrib -h "C:\Users\Admin\AppData\Roaming\D80"
      4⤵
      Views/modifies file attributes
      PID:3728
- C:\Windows\SysWOW64\cmd.exe
  cmd /c choice /t 10 /d y & attrib -h "C:\Users\Admin\AppData\Local\Temp\5cd04805f9753ca08b82e88c27bf5426d1d356bb26b281885573051048911367.sample.exe" & del "C:\Users\Admin\AppData\Local\Temp\5cd04805f9753ca08b82e88c27bf5426d1d356bb26b281885573051048911367.sample.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2144
- - C:\Windows\SysWOW64\choice.exe
    choice /t 10 /d y
    3⤵
    PID:3496
- - C:\Windows\SysWOW64\attrib.exe
    attrib -h "C:\Users\Admin\AppData\Local\Temp\5cd04805f9753ca08b82e88c27bf5426d1d356bb26b281885573051048911367.sample.exe"
    3⤵
    - Views/modifies file attributes
    PID:264

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4016

C:\Windows\SysWOW64\D80.exe
C:\Windows\SysWOW64\D80.exe -s
1⤵
- Executes dropped EXE
- Modifies extensions of user files
- Suspicious use of WriteProcessMemory
PID:2276
- C:\Windows\SysWOW64\cmd.exe
  cmd /c choice /t 10 /d y & attrib -h "C:\Windows\SysWOW64\D80.exe" & del "C:\Windows\SysWOW64\D80.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2100
- - C:\Windows\SysWOW64\choice.exe
    choice /t 10 /d y
    3⤵
    PID:904
- - C:\Windows\SysWOW64\attrib.exe
    attrib -h "C:\Windows\SysWOW64\D80.exe"
    3⤵
    - Drops file in System32 directory
    - Views/modifies file attributes
    PID:3192

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/656-114-0x0000000000560000-0x00000000006AA000-memory.dmp

Filesize
1.3MB

Download
memory/656-115-0x0000000000400000-0x0000000000507000-memory.dmp

Filesize
1.0MB

Download
memory/2276-125-0x00000000001E0000-0x00000000001F0000-memory.dmp

Filesize
64KB

Download
memory/2276-126-0x0000000000400000-0x0000000000507000-memory.dmp

Filesize
1.0MB

Download
memory/4068-120-0x0000000000400000-0x0000000000507000-memory.dmp

Filesize
1.0MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads