wastedlocker | ed0632acb266a4ec3f51dd803c8025bccd654e53c64eb613e203c590897079b3

Analysis

max time kernel
23s
max time network
135s
platform
windows10_x64
resource
win10v20210408
submitted
26/07/2021, 12:42

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General

Target

ed0632acb266a4ec3f51dd803c8025bccd654e53c64eb613e203c590897079b3.sample.exe
Size

951KB
MD5

edbf07eaca4fff5f2d3f045567a9dc6f
SHA1

9292fa66c917bfa47e8012d302a69bec48e9b98c
SHA256

ed0632acb266a4ec3f51dd803c8025bccd654e53c64eb613e203c590897079b3
SHA512

731214358d4fcecdafe0d386a305a130185727b20704e6251e37ac5feb35eff8f3f31d8c740954feb57c699cc5975c3bb50fac5c5202c5933c4fe0dfd06bc8e6

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/0x000200000001ab42-115.dat	cryptone
behavioral2/files/0x000200000001ab42-116.dat	cryptone
behavioral2/files/0x00030000000152f8-121.dat	cryptone
behavioral2/files/0x00030000000152f8-123.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
3116	Init:bin
2124	Init.exe

Modifies extensions of user files 27 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

description	ioc	Process
File created	C:\Users\Admin\Pictures\CopyReset.raw.d2lwasted_info	Init.exe
File renamed	C:\Users\Admin\Pictures\JoinOut.tif => C:\Users\Admin\Pictures\JoinOut.tif.d2lwasted	Init.exe
File renamed	C:\Users\Admin\Pictures\MergeUnregister.tiff => C:\Users\Admin\Pictures\MergeUnregister.tiff.d2lwasted	Init.exe
File created	C:\Users\Admin\Pictures\RestartEdit.raw.d2lwasted_info	Init.exe
File opened for modification	C:\Users\Admin\Pictures\SplitRedo.png.d2lwasted	Init.exe
File opened for modification	C:\Users\Admin\Pictures\BlockConvert.png.d2lwasted	Init.exe
File created	C:\Users\Admin\Pictures\CompleteDisconnect.tiff.d2lwasted_info	Init.exe
File opened for modification	C:\Users\Admin\Pictures\CopyReset.raw.d2lwasted	Init.exe
File created	C:\Users\Admin\Pictures\JoinOut.tif.d2lwasted_info	Init.exe
File created	C:\Users\Admin\Pictures\ResolveRegister.tif.d2lwasted_info	Init.exe
File opened for modification	C:\Users\Admin\Pictures\ResolveRegister.tif.d2lwasted	Init.exe
File renamed	C:\Users\Admin\Pictures\BlockConvert.png => C:\Users\Admin\Pictures\BlockConvert.png.d2lwasted	Init.exe
File opened for modification	C:\Users\Admin\Pictures\CompleteDisconnect.tiff.d2lwasted	Init.exe
File created	C:\Users\Admin\Pictures\MergeUnregister.tiff.d2lwasted_info	Init.exe
File opened for modification	C:\Users\Admin\Pictures\RestartEdit.raw.d2lwasted	Init.exe
File renamed	C:\Users\Admin\Pictures\CompleteDisconnect.tiff => C:\Users\Admin\Pictures\CompleteDisconnect.tiff.d2lwasted	Init.exe
File opened for modification	C:\Users\Admin\Pictures\JoinOut.tif.d2lwasted	Init.exe
File opened for modification	C:\Users\Admin\Pictures\MergeUnregister.tiff.d2lwasted	Init.exe
File created	C:\Users\Admin\Pictures\StopEdit.raw.d2lwasted_info	Init.exe
File created	C:\Users\Admin\Pictures\BlockConvert.png.d2lwasted_info	Init.exe
File renamed	C:\Users\Admin\Pictures\CopyReset.raw => C:\Users\Admin\Pictures\CopyReset.raw.d2lwasted	Init.exe
File renamed	C:\Users\Admin\Pictures\ResolveRegister.tif => C:\Users\Admin\Pictures\ResolveRegister.tif.d2lwasted	Init.exe
File renamed	C:\Users\Admin\Pictures\RestartEdit.raw => C:\Users\Admin\Pictures\RestartEdit.raw.d2lwasted	Init.exe
File renamed	C:\Users\Admin\Pictures\SplitRedo.png => C:\Users\Admin\Pictures\SplitRedo.png.d2lwasted	Init.exe
File renamed	C:\Users\Admin\Pictures\StopEdit.raw => C:\Users\Admin\Pictures\StopEdit.raw.d2lwasted	Init.exe
File opened for modification	C:\Users\Admin\Pictures\StopEdit.raw.d2lwasted	Init.exe
File created	C:\Users\Admin\Pictures\SplitRedo.png.d2lwasted_info	Init.exe

Possible privilege escalation attempt 2 IoCs

exploit

pid	Process
2816	icacls.exe
2220	takeown.exe

Modifies file permissions 1 TTPs 2 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
2220	takeown.exe
2816	icacls.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\Init.exe	Init:bin
File opened for modification	C:\Windows\SysWOW64\Init.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
1020	vssadmin.exe

NTFS ADS 1 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Init:bin	ed0632acb266a4ec3f51dd803c8025bccd654e53c64eb613e203c590897079b3.sample.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeBackupPrivilege	2624	vssvc.exe
Token: SeRestorePrivilege	2624	vssvc.exe
Token: SeAuditPrivilege	2624	vssvc.exe

Suspicious use of WriteProcessMemory 38 IoCs

description	pid	Process	procid_target
PID 808 wrote to memory of 3116	808	ed0632acb266a4ec3f51dd803c8025bccd654e53c64eb613e203c590897079b3.sample.exe	75
PID 808 wrote to memory of 3116	808	ed0632acb266a4ec3f51dd803c8025bccd654e53c64eb613e203c590897079b3.sample.exe	75
PID 808 wrote to memory of 3116	808	ed0632acb266a4ec3f51dd803c8025bccd654e53c64eb613e203c590897079b3.sample.exe	75
PID 3116 wrote to memory of 1020	3116	Init:bin	76
PID 3116 wrote to memory of 1020	3116	Init:bin	76
PID 3116 wrote to memory of 2220	3116	Init:bin	80
PID 3116 wrote to memory of 2220	3116	Init:bin	80
PID 3116 wrote to memory of 2220	3116	Init:bin	80
PID 3116 wrote to memory of 2816	3116	Init:bin	82
PID 3116 wrote to memory of 2816	3116	Init:bin	82
PID 3116 wrote to memory of 2816	3116	Init:bin	82
PID 2124 wrote to memory of 3288	2124	Init.exe	89
PID 2124 wrote to memory of 3288	2124	Init.exe	89
PID 2124 wrote to memory of 3288	2124	Init.exe	89
PID 3288 wrote to memory of 3248	3288	cmd.exe	91
PID 3288 wrote to memory of 3248	3288	cmd.exe	91
PID 3288 wrote to memory of 3248	3288	cmd.exe	91
PID 3116 wrote to memory of 3304	3116	Init:bin	92
PID 3116 wrote to memory of 3304	3116	Init:bin	92
PID 3116 wrote to memory of 3304	3116	Init:bin	92
PID 808 wrote to memory of 2304	808	ed0632acb266a4ec3f51dd803c8025bccd654e53c64eb613e203c590897079b3.sample.exe	94
PID 808 wrote to memory of 2304	808	ed0632acb266a4ec3f51dd803c8025bccd654e53c64eb613e203c590897079b3.sample.exe	94
PID 808 wrote to memory of 2304	808	ed0632acb266a4ec3f51dd803c8025bccd654e53c64eb613e203c590897079b3.sample.exe	94
PID 3304 wrote to memory of 2848	3304	cmd.exe	96
PID 3304 wrote to memory of 2848	3304	cmd.exe	96
PID 3304 wrote to memory of 2848	3304	cmd.exe	96
PID 2304 wrote to memory of 1020	2304	cmd.exe	97
PID 2304 wrote to memory of 1020	2304	cmd.exe	97
PID 2304 wrote to memory of 1020	2304	cmd.exe	97
PID 3288 wrote to memory of 920	3288	cmd.exe	98
PID 3288 wrote to memory of 920	3288	cmd.exe	98
PID 3288 wrote to memory of 920	3288	cmd.exe	98
PID 3304 wrote to memory of 3592	3304	cmd.exe	99
PID 3304 wrote to memory of 3592	3304	cmd.exe	99
PID 3304 wrote to memory of 3592	3304	cmd.exe	99
PID 2304 wrote to memory of 2292	2304	cmd.exe	100
PID 2304 wrote to memory of 2292	2304	cmd.exe	100
PID 2304 wrote to memory of 2292	2304	cmd.exe	100

Views/modifies file attributes 1 TTPs 3 IoCs

evasion

Hidden Files and Directories

T1158

pid	Process
920	attrib.exe
3592	attrib.exe
2292	attrib.exe

C:\Users\Admin\AppData\Local\Temp\ed0632acb266a4ec3f51dd803c8025bccd654e53c64eb613e203c590897079b3.sample.exe
"C:\Users\Admin\AppData\Local\Temp\ed0632acb266a4ec3f51dd803c8025bccd654e53c64eb613e203c590897079b3.sample.exe"
1⤵
- NTFS ADS
- Suspicious use of WriteProcessMemory
PID:808
- C:\Users\Admin\AppData\Roaming\Init:bin
  C:\Users\Admin\AppData\Roaming\Init:bin -r
  2⤵
  - Executes dropped EXE
  - Drops file in System32 directory
  - Suspicious use of WriteProcessMemory
  PID:3116
- - C:\Windows\system32\vssadmin.exe
    C:\Windows\system32\vssadmin.exe Delete Shadows /All /Quiet
    3⤵
    - Interacts with shadow copies
    PID:1020
- - C:\Windows\SysWOW64\takeown.exe
    C:\Windows\system32\takeown.exe /F C:\Windows\system32\Init.exe
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:2220
- - C:\Windows\SysWOW64\icacls.exe
    C:\Windows\system32\icacls.exe C:\Windows\system32\Init.exe /reset
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:2816
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c choice /t 10 /d y & attrib -h "C:\Users\Admin\AppData\Roaming\Init" & del "C:\Users\Admin\AppData\Roaming\Init"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:3304
  - - C:\Windows\SysWOW64\choice.exe
      choice /t 10 /d y
      4⤵
      PID:2848
  - - C:\Windows\SysWOW64\attrib.exe
      attrib -h "C:\Users\Admin\AppData\Roaming\Init"
      4⤵
      Views/modifies file attributes
      PID:3592
- C:\Windows\SysWOW64\cmd.exe
  cmd /c choice /t 10 /d y & attrib -h "C:\Users\Admin\AppData\Local\Temp\ed0632acb266a4ec3f51dd803c8025bccd654e53c64eb613e203c590897079b3.sample.exe" & del "C:\Users\Admin\AppData\Local\Temp\ed0632acb266a4ec3f51dd803c8025bccd654e53c64eb613e203c590897079b3.sample.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2304
- - C:\Windows\SysWOW64\choice.exe
    choice /t 10 /d y
    3⤵
    PID:1020
- - C:\Windows\SysWOW64\attrib.exe
    attrib -h "C:\Users\Admin\AppData\Local\Temp\ed0632acb266a4ec3f51dd803c8025bccd654e53c64eb613e203c590897079b3.sample.exe"
    3⤵
    - Views/modifies file attributes
    PID:2292

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2624

C:\Windows\SysWOW64\Init.exe
C:\Windows\SysWOW64\Init.exe -s
1⤵
- Executes dropped EXE
- Modifies extensions of user files
- Suspicious use of WriteProcessMemory
PID:2124
- C:\Windows\SysWOW64\cmd.exe
  cmd /c choice /t 10 /d y & attrib -h "C:\Windows\SysWOW64\Init.exe" & del "C:\Windows\SysWOW64\Init.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3288
- - C:\Windows\SysWOW64\choice.exe
    choice /t 10 /d y
    3⤵
    PID:3248
- - C:\Windows\SysWOW64\attrib.exe
    attrib -h "C:\Windows\SysWOW64\Init.exe"
    3⤵
    - Drops file in System32 directory
    - Views/modifies file attributes
    PID:920

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/808-117-0x00000000005D0000-0x00000000005E0000-memory.dmp

Filesize
64KB

Download
memory/808-118-0x0000000000400000-0x00000000004EF000-memory.dmp

Filesize
956KB

Download
memory/2124-126-0x0000000000400000-0x00000000004EF000-memory.dmp

Filesize
956KB

Download
memory/2124-125-0x00000000005E0000-0x000000000072A000-memory.dmp

Filesize
1.3MB

Download
memory/3116-124-0x0000000000400000-0x00000000004EF000-memory.dmp

Filesize
956KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads