wastedlocker | 905ea119ad8d3e54cd228c458a1b5681abc1f35df782977a23812ec4efa0288a

Analysis

max time kernel
27s
max time network
80s
platform
windows10_x64
resource
win10v20210408
submitted
26/07/2021, 12:42

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General

Target

905ea119ad8d3e54cd228c458a1b5681abc1f35df782977a23812ec4efa0288a.sample.exe
Size

1.2MB
MD5

2cc4534b0dd0e1c8d5b89644274a10c1
SHA1

735ee2c15c0b7172f65d39f0fd33b9186ee69653
SHA256

905ea119ad8d3e54cd228c458a1b5681abc1f35df782977a23812ec4efa0288a
SHA512

a842b2d171aa6efa1b391d5d0f84663e78021b485555e2bf10a5e589d8652057f5abbd88e1a5ec628b714692ec5d63c3172894aa7846d5897e87d99dad67e2b8

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/0x000200000001ab50-117.dat	cryptone
behavioral2/files/0x000200000001ab50-118.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
3252	Drivers:bin
2664	Drivers.exe

Modifies extensions of user files 33 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

description	ioc	Process
File renamed	C:\Users\Admin\Pictures\SendConvertFrom.png => C:\Users\Admin\Pictures\SendConvertFrom.png.garminwasted	Drivers.exe
File renamed	C:\Users\Admin\Pictures\SetUnlock.tiff => C:\Users\Admin\Pictures\SetUnlock.tiff.garminwasted	Drivers.exe
File renamed	C:\Users\Admin\Pictures\AddUnlock.tif => C:\Users\Admin\Pictures\AddUnlock.tif.garminwasted	Drivers.exe
File renamed	C:\Users\Admin\Pictures\DenyUnlock.tiff => C:\Users\Admin\Pictures\DenyUnlock.tiff.garminwasted	Drivers.exe
File renamed	C:\Users\Admin\Pictures\ReadAdd.raw => C:\Users\Admin\Pictures\ReadAdd.raw.garminwasted	Drivers.exe
File created	C:\Users\Admin\Pictures\AddUnlock.tif.garminwasted_info	Drivers.exe
File renamed	C:\Users\Admin\Pictures\MoveExport.tif => C:\Users\Admin\Pictures\MoveExport.tif.garminwasted	Drivers.exe
File opened for modification	C:\Users\Admin\Pictures\UnprotectApprove.tif.garminwasted	Drivers.exe
File renamed	C:\Users\Admin\Pictures\MountStart.png => C:\Users\Admin\Pictures\MountStart.png.garminwasted	Drivers.exe
File opened for modification	C:\Users\Admin\Pictures\PushExit.tiff.garminwasted	Drivers.exe
File renamed	C:\Users\Admin\Pictures\SetStep.tiff => C:\Users\Admin\Pictures\SetStep.tiff.garminwasted	Drivers.exe
File opened for modification	C:\Users\Admin\Pictures\SendConvertFrom.png.garminwasted	Drivers.exe
File renamed	C:\Users\Admin\Pictures\UnprotectApprove.tif => C:\Users\Admin\Pictures\UnprotectApprove.tif.garminwasted	Drivers.exe
File created	C:\Users\Admin\Pictures\MoveExport.tif.garminwasted_info	Drivers.exe
File created	C:\Users\Admin\Pictures\PushExit.tiff.garminwasted_info	Drivers.exe
File created	C:\Users\Admin\Pictures\SendConvertFrom.png.garminwasted_info	Drivers.exe
File opened for modification	C:\Users\Admin\Pictures\SetStep.tiff.garminwasted	Drivers.exe
File opened for modification	C:\Users\Admin\Pictures\StepUnpublish.raw.garminwasted	Drivers.exe
File opened for modification	C:\Users\Admin\Pictures\DenyUnlock.tiff.garminwasted	Drivers.exe
File opened for modification	C:\Users\Admin\Pictures\MoveExport.tif.garminwasted	Drivers.exe
File created	C:\Users\Admin\Pictures\ReadAdd.raw.garminwasted_info	Drivers.exe
File created	C:\Users\Admin\Pictures\SetStep.tiff.garminwasted_info	Drivers.exe
File opened for modification	C:\Users\Admin\Pictures\AddUnlock.tif.garminwasted	Drivers.exe
File created	C:\Users\Admin\Pictures\MountStart.png.garminwasted_info	Drivers.exe
File opened for modification	C:\Users\Admin\Pictures\MountStart.png.garminwasted	Drivers.exe
File created	C:\Users\Admin\Pictures\DenyUnlock.tiff.garminwasted_info	Drivers.exe
File opened for modification	C:\Users\Admin\Pictures\SetUnlock.tiff.garminwasted	Drivers.exe
File created	C:\Users\Admin\Pictures\StepUnpublish.raw.garminwasted_info	Drivers.exe
File renamed	C:\Users\Admin\Pictures\StepUnpublish.raw => C:\Users\Admin\Pictures\StepUnpublish.raw.garminwasted	Drivers.exe
File created	C:\Users\Admin\Pictures\UnprotectApprove.tif.garminwasted_info	Drivers.exe
File renamed	C:\Users\Admin\Pictures\PushExit.tiff => C:\Users\Admin\Pictures\PushExit.tiff.garminwasted	Drivers.exe
File opened for modification	C:\Users\Admin\Pictures\ReadAdd.raw.garminwasted	Drivers.exe
File created	C:\Users\Admin\Pictures\SetUnlock.tiff.garminwasted_info	Drivers.exe

Possible privilege escalation attempt 2 IoCs

exploit

pid	Process
2924	takeown.exe
3888	icacls.exe

Modifies file permissions 1 TTPs 2 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
2924	takeown.exe
3888	icacls.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\Drivers.exe	Drivers:bin
File opened for modification	C:\Windows\SysWOW64\Drivers.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
3064	vssadmin.exe

NTFS ADS 1 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Drivers:bin	905ea119ad8d3e54cd228c458a1b5681abc1f35df782977a23812ec4efa0288a.sample.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeBackupPrivilege	2884	vssvc.exe
Token: SeRestorePrivilege	2884	vssvc.exe
Token: SeAuditPrivilege	2884	vssvc.exe

Suspicious use of WriteProcessMemory 38 IoCs

description	pid	Process	procid_target
PID 808 wrote to memory of 3252	808	905ea119ad8d3e54cd228c458a1b5681abc1f35df782977a23812ec4efa0288a.sample.exe	74
PID 808 wrote to memory of 3252	808	905ea119ad8d3e54cd228c458a1b5681abc1f35df782977a23812ec4efa0288a.sample.exe	74
PID 808 wrote to memory of 3252	808	905ea119ad8d3e54cd228c458a1b5681abc1f35df782977a23812ec4efa0288a.sample.exe	74
PID 3252 wrote to memory of 3064	3252	Drivers:bin	75
PID 3252 wrote to memory of 3064	3252	Drivers:bin	75
PID 3252 wrote to memory of 2924	3252	Drivers:bin	79
PID 3252 wrote to memory of 2924	3252	Drivers:bin	79
PID 3252 wrote to memory of 2924	3252	Drivers:bin	79
PID 3252 wrote to memory of 3888	3252	Drivers:bin	81
PID 3252 wrote to memory of 3888	3252	Drivers:bin	81
PID 3252 wrote to memory of 3888	3252	Drivers:bin	81
PID 2664 wrote to memory of 3832	2664	Drivers.exe	87
PID 2664 wrote to memory of 3832	2664	Drivers.exe	87
PID 2664 wrote to memory of 3832	2664	Drivers.exe	87
PID 3832 wrote to memory of 3992	3832	cmd.exe	89
PID 3832 wrote to memory of 3992	3832	cmd.exe	89
PID 3832 wrote to memory of 3992	3832	cmd.exe	89
PID 3252 wrote to memory of 4060	3252	Drivers:bin	90
PID 3252 wrote to memory of 4060	3252	Drivers:bin	90
PID 3252 wrote to memory of 4060	3252	Drivers:bin	90
PID 808 wrote to memory of 3032	808	905ea119ad8d3e54cd228c458a1b5681abc1f35df782977a23812ec4efa0288a.sample.exe	92
PID 808 wrote to memory of 3032	808	905ea119ad8d3e54cd228c458a1b5681abc1f35df782977a23812ec4efa0288a.sample.exe	92
PID 808 wrote to memory of 3032	808	905ea119ad8d3e54cd228c458a1b5681abc1f35df782977a23812ec4efa0288a.sample.exe	92
PID 4060 wrote to memory of 3108	4060	cmd.exe	94
PID 4060 wrote to memory of 3108	4060	cmd.exe	94
PID 4060 wrote to memory of 3108	4060	cmd.exe	94
PID 3032 wrote to memory of 4088	3032	cmd.exe	95
PID 3032 wrote to memory of 4088	3032	cmd.exe	95
PID 3032 wrote to memory of 4088	3032	cmd.exe	95
PID 3832 wrote to memory of 264	3832	cmd.exe	97
PID 3832 wrote to memory of 264	3832	cmd.exe	97
PID 3832 wrote to memory of 264	3832	cmd.exe	97
PID 4060 wrote to memory of 280	4060	cmd.exe	98
PID 4060 wrote to memory of 280	4060	cmd.exe	98
PID 4060 wrote to memory of 280	4060	cmd.exe	98
PID 3032 wrote to memory of 2716	3032	cmd.exe	99
PID 3032 wrote to memory of 2716	3032	cmd.exe	99
PID 3032 wrote to memory of 2716	3032	cmd.exe	99

Views/modifies file attributes 1 TTPs 3 IoCs

evasion

Hidden Files and Directories

T1158

pid	Process
264	attrib.exe
280	attrib.exe
2716	attrib.exe

C:\Users\Admin\AppData\Local\Temp\905ea119ad8d3e54cd228c458a1b5681abc1f35df782977a23812ec4efa0288a.sample.exe
"C:\Users\Admin\AppData\Local\Temp\905ea119ad8d3e54cd228c458a1b5681abc1f35df782977a23812ec4efa0288a.sample.exe"
1⤵
- NTFS ADS
- Suspicious use of WriteProcessMemory
PID:808
- C:\Users\Admin\AppData\Roaming\Drivers:bin
  C:\Users\Admin\AppData\Roaming\Drivers:bin -r
  2⤵
  - Executes dropped EXE
  - Drops file in System32 directory
  - Suspicious use of WriteProcessMemory
  PID:3252
- - C:\Windows\system32\vssadmin.exe
    C:\Windows\system32\vssadmin.exe Delete Shadows /All /Quiet
    3⤵
    - Interacts with shadow copies
    PID:3064
- - C:\Windows\SysWOW64\takeown.exe
    C:\Windows\system32\takeown.exe /F C:\Windows\system32\Drivers.exe
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:2924
- - C:\Windows\SysWOW64\icacls.exe
    C:\Windows\system32\icacls.exe C:\Windows\system32\Drivers.exe /reset
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:3888
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c choice /t 10 /d y & attrib -h "C:\Users\Admin\AppData\Roaming\Drivers" & del "C:\Users\Admin\AppData\Roaming\Drivers"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:4060
  - - C:\Windows\SysWOW64\choice.exe
      choice /t 10 /d y
      4⤵
      PID:3108
  - - C:\Windows\SysWOW64\attrib.exe
      attrib -h "C:\Users\Admin\AppData\Roaming\Drivers"
      4⤵
      Views/modifies file attributes
      PID:280
- C:\Windows\SysWOW64\cmd.exe
  cmd /c choice /t 10 /d y & attrib -h "C:\Users\Admin\AppData\Local\Temp\905ea119ad8d3e54cd228c458a1b5681abc1f35df782977a23812ec4efa0288a.sample.exe" & del "C:\Users\Admin\AppData\Local\Temp\905ea119ad8d3e54cd228c458a1b5681abc1f35df782977a23812ec4efa0288a.sample.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3032
- - C:\Windows\SysWOW64\choice.exe
    choice /t 10 /d y
    3⤵
    PID:4088
- - C:\Windows\SysWOW64\attrib.exe
    attrib -h "C:\Users\Admin\AppData\Local\Temp\905ea119ad8d3e54cd228c458a1b5681abc1f35df782977a23812ec4efa0288a.sample.exe"
    3⤵
    - Views/modifies file attributes
    PID:2716

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2884

C:\Windows\SysWOW64\Drivers.exe
C:\Windows\SysWOW64\Drivers.exe -s
1⤵
- Executes dropped EXE
- Modifies extensions of user files
- Suspicious use of WriteProcessMemory
PID:2664
- C:\Windows\SysWOW64\cmd.exe
  cmd /c choice /t 10 /d y & attrib -h "C:\Windows\SysWOW64\Drivers.exe" & del "C:\Windows\SysWOW64\Drivers.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3832
- - C:\Windows\SysWOW64\choice.exe
    choice /t 10 /d y
    3⤵
    PID:3992
- - C:\Windows\SysWOW64\attrib.exe
    attrib -h "C:\Windows\SysWOW64\Drivers.exe"
    3⤵
    - Drops file in System32 directory
    - Views/modifies file attributes
    PID:264

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/808-115-0x0000000000400000-0x0000000000534000-memory.dmp

Filesize
1.2MB

Download
memory/808-114-0x0000000000590000-0x00000000005A0000-memory.dmp

Filesize
64KB

Download
memory/2664-126-0x0000000000400000-0x0000000000534000-memory.dmp

Filesize
1.2MB

Download
memory/3252-121-0x0000000000400000-0x0000000000534000-memory.dmp

Filesize
1.2MB

Download
memory/3252-120-0x0000000000540000-0x000000000068A000-memory.dmp

Filesize
1.3MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads