wastedlocker | 905ea119ad8d3e54cd228c458a1b5681abc1f35df782977a23812ec4efa0288a

Analysis

max time kernel
143s
max time network
98s
platform
windows10_x64
resource
win10v200722
submitted
27/07/2020, 10:55

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General

Target

905ea119ad8d3e54cd228c458a1b5681abc1f35df782977a23812ec4efa0288a.bin.exe
Size

1.2MB
MD5

2cc4534b0dd0e1c8d5b89644274a10c1
SHA1

735ee2c15c0b7172f65d39f0fd33b9186ee69653
SHA256

905ea119ad8d3e54cd228c458a1b5681abc1f35df782977a23812ec4efa0288a
SHA512

a842b2d171aa6efa1b391d5d0f84663e78021b485555e2bf10a5e589d8652057f5abbd88e1a5ec628b714692ec5d63c3172894aa7846d5897e87d99dad67e2b8

Score

10^/10

ransomware exploit wastedlocker persistence discovery

Malware Config

Signatures

Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
ransomware

File Deletion
T1107

Inhibit System Recovery
T1490
WastedLocker
Ransomware family seen in the wild since May 2020.
ransomware wastedlocker

Drops file in System32 directory 2 IoCs

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

NTFS ADS 1 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Secure:bin	905ea119ad8d3e54cd228c458a1b5681abc1f35df782977a23812ec4efa0288a.bin.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
644	vssadmin.exe

Suspicious use of WriteProcessMemory 38 IoCs

description	pid	Process	procid_target
PID 2584 wrote to memory of 492	2584	905ea119ad8d3e54cd228c458a1b5681abc1f35df782977a23812ec4efa0288a.bin.exe	66
PID 2584 wrote to memory of 492	2584	905ea119ad8d3e54cd228c458a1b5681abc1f35df782977a23812ec4efa0288a.bin.exe	66
PID 2584 wrote to memory of 492	2584	905ea119ad8d3e54cd228c458a1b5681abc1f35df782977a23812ec4efa0288a.bin.exe	66
PID 492 wrote to memory of 644	492	Secure:bin	67
PID 492 wrote to memory of 644	492	Secure:bin	67
PID 492 wrote to memory of 1344	492	Secure:bin	71
PID 492 wrote to memory of 1344	492	Secure:bin	71
PID 492 wrote to memory of 1344	492	Secure:bin	71
PID 492 wrote to memory of 1504	492	Secure:bin	73
PID 492 wrote to memory of 1504	492	Secure:bin	73
PID 492 wrote to memory of 1504	492	Secure:bin	73
PID 1760 wrote to memory of 2300	1760	Secure.exe	77
PID 1760 wrote to memory of 2300	1760	Secure.exe	77
PID 1760 wrote to memory of 2300	1760	Secure.exe	77
PID 2300 wrote to memory of 2612	2300	cmd.exe	79
PID 2300 wrote to memory of 2612	2300	cmd.exe	79
PID 2300 wrote to memory of 2612	2300	cmd.exe	79
PID 492 wrote to memory of 2660	492	Secure:bin	80
PID 492 wrote to memory of 2660	492	Secure:bin	80
PID 492 wrote to memory of 2660	492	Secure:bin	80
PID 2584 wrote to memory of 2676	2584	905ea119ad8d3e54cd228c458a1b5681abc1f35df782977a23812ec4efa0288a.bin.exe	82
PID 2584 wrote to memory of 2676	2584	905ea119ad8d3e54cd228c458a1b5681abc1f35df782977a23812ec4efa0288a.bin.exe	82
PID 2584 wrote to memory of 2676	2584	905ea119ad8d3e54cd228c458a1b5681abc1f35df782977a23812ec4efa0288a.bin.exe	82
PID 2660 wrote to memory of 3924	2660	cmd.exe	84
PID 2660 wrote to memory of 3924	2660	cmd.exe	84
PID 2660 wrote to memory of 3924	2660	cmd.exe	84
PID 2676 wrote to memory of 2204	2676	cmd.exe	85
PID 2676 wrote to memory of 2204	2676	cmd.exe	85
PID 2676 wrote to memory of 2204	2676	cmd.exe	85
PID 2300 wrote to memory of 3824	2300	cmd.exe	89
PID 2300 wrote to memory of 3824	2300	cmd.exe	89
PID 2300 wrote to memory of 3824	2300	cmd.exe	89
PID 2660 wrote to memory of 576	2660	cmd.exe	90
PID 2660 wrote to memory of 576	2660	cmd.exe	90
PID 2660 wrote to memory of 576	2660	cmd.exe	90
PID 2676 wrote to memory of 472	2676	cmd.exe	91
PID 2676 wrote to memory of 472	2676	cmd.exe	91
PID 2676 wrote to memory of 472	2676	cmd.exe	91

Executes dropped EXE 2 IoCs

pid	Process
492	Secure:bin
1760	Secure.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeBackupPrivilege	1004	vssvc.exe
Token: SeRestorePrivilege	1004	vssvc.exe
Token: SeAuditPrivilege	1004	vssvc.exe

Possible privilege escalation attempt 2 IoCs

exploit

pid	Process
1344	takeown.exe
1504	icacls.exe

Modifies extensions of user files 15 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

description	ioc	Process
File opened for modification	C:\Users\Admin\Pictures\AssertClear.png.garminwasted	Secure.exe
File created	C:\Users\Admin\Pictures\InitializeSave.crw.garminwasted_info	Secure.exe
File renamed	C:\Users\Admin\Pictures\AssertClear.png => C:\Users\Admin\Pictures\AssertClear.png.garminwasted	Secure.exe
File opened for modification	C:\Users\Admin\Pictures\ConnectEnable.raw.garminwasted	Secure.exe
File renamed	C:\Users\Admin\Pictures\ConnectEnable.raw => C:\Users\Admin\Pictures\ConnectEnable.raw.garminwasted	Secure.exe
File renamed	C:\Users\Admin\Pictures\UnpublishUnregister.tif => C:\Users\Admin\Pictures\UnpublishUnregister.tif.garminwasted	Secure.exe
File opened for modification	C:\Users\Admin\Pictures\UnpublishUnregister.tif.garminwasted	Secure.exe
File created	C:\Users\Admin\Pictures\AssertClear.png.garminwasted_info	Secure.exe
File created	C:\Users\Admin\Pictures\ConnectEnable.raw.garminwasted_info	Secure.exe
File created	C:\Users\Admin\Pictures\UnpublishUnregister.tif.garminwasted_info	Secure.exe
File created	C:\Users\Admin\Pictures\PingLimit.tiff.garminwasted_info	Secure.exe
File opened for modification	C:\Users\Admin\Pictures\PingLimit.tiff.garminwasted	Secure.exe
File renamed	C:\Users\Admin\Pictures\PingLimit.tiff => C:\Users\Admin\Pictures\PingLimit.tiff.garminwasted	Secure.exe
File renamed	C:\Users\Admin\Pictures\InitializeSave.crw => C:\Users\Admin\Pictures\InitializeSave.crw.garminwasted	Secure.exe
File opened for modification	C:\Users\Admin\Pictures\InitializeSave.crw.garminwasted	Secure.exe

Views/modifies file attributes 1 TTPs 3 IoCs

evasion

Hidden Files and Directories

T1158

pid	Process
3824	attrib.exe
576	attrib.exe
472	attrib.exe

Modifies service 2 TTPs 5 IoCs

persistence

Modify Registry

T1112

Modify Existing Service

T1031

description	ioc	Process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VSS\Diag\Registry Writer	vssvc.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VSS\Diag\COM+ REGDB Writer	vssvc.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VSS\Diag\ASR Writer	vssvc.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VSS\Diag\Shadow Copy Optimization Writer	vssvc.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VSS\Diag\SwProvider_{b5946137-7b9f-4925-af80-51abd60b20d5}	vssvc.exe

Modifies file permissions 1 TTPs 2 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
1344	takeown.exe
1504	icacls.exe

C:\Users\Admin\AppData\Local\Temp\905ea119ad8d3e54cd228c458a1b5681abc1f35df782977a23812ec4efa0288a.bin.exe
"C:\Users\Admin\AppData\Local\Temp\905ea119ad8d3e54cd228c458a1b5681abc1f35df782977a23812ec4efa0288a.bin.exe"
1⤵
- NTFS ADS
- Suspicious use of WriteProcessMemory
PID:2584
- C:\Users\Admin\AppData\Roaming\Secure:bin
  C:\Users\Admin\AppData\Roaming\Secure:bin -r
  2⤵
  - Drops file in System32 directory
  - Suspicious use of WriteProcessMemory
  - Executes dropped EXE
  PID:492
- - C:\Windows\system32\vssadmin.exe
    C:\Windows\system32\vssadmin.exe Delete Shadows /All /Quiet
    3⤵
    - Interacts with shadow copies
    PID:644
- - C:\Windows\SysWOW64\takeown.exe
    C:\Windows\system32\takeown.exe /F C:\Windows\system32\Secure.exe
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:1344
- - C:\Windows\SysWOW64\icacls.exe
    C:\Windows\system32\icacls.exe C:\Windows\system32\Secure.exe /reset
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:1504
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c choice /t 10 /d y & attrib -h "C:\Users\Admin\AppData\Roaming\Secure" & del "C:\Users\Admin\AppData\Roaming\Secure"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2660
  - - C:\Windows\SysWOW64\choice.exe
      choice /t 10 /d y
      4⤵
      PID:3924
  - - C:\Windows\SysWOW64\attrib.exe
      attrib -h "C:\Users\Admin\AppData\Roaming\Secure"
      4⤵
      Views/modifies file attributes
      PID:576
- C:\Windows\SysWOW64\cmd.exe
  cmd /c choice /t 10 /d y & attrib -h "C:\Users\Admin\AppData\Local\Temp\905ea119ad8d3e54cd228c458a1b5681abc1f35df782977a23812ec4efa0288a.bin.exe" & del "C:\Users\Admin\AppData\Local\Temp\905ea119ad8d3e54cd228c458a1b5681abc1f35df782977a23812ec4efa0288a.bin.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2676
- - C:\Windows\SysWOW64\choice.exe
    choice /t 10 /d y
    3⤵
    PID:2204
- - C:\Windows\SysWOW64\attrib.exe
    attrib -h "C:\Users\Admin\AppData\Local\Temp\905ea119ad8d3e54cd228c458a1b5681abc1f35df782977a23812ec4efa0288a.bin.exe"
    3⤵
    - Views/modifies file attributes
    PID:472

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
- Modifies service
PID:1004

C:\Windows\SysWOW64\Secure.exe
C:\Windows\SysWOW64\Secure.exe -s
1⤵
- Suspicious use of WriteProcessMemory
- Executes dropped EXE
- Modifies extensions of user files
PID:1760
- C:\Windows\SysWOW64\cmd.exe
  cmd /c choice /t 10 /d y & attrib -h "C:\Windows\SysWOW64\Secure.exe" & del "C:\Windows\SysWOW64\Secure.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2300
- - C:\Windows\SysWOW64\choice.exe
    choice /t 10 /d y
    3⤵
    PID:2612
- - C:\Windows\SysWOW64\attrib.exe
    attrib -h "C:\Windows\SysWOW64\Secure.exe"
    3⤵
    - Drops file in System32 directory
    - Views/modifies file attributes
    PID:3824

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Hidden Files and Directories

T1158

Modify Existing Service

T1031

Privilege Escalation

Defense Evasion

File Deletion

T1107

File and Directory Permissions Modification

T1222

Hidden Files and Directories

T1158

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Inhibit System Recovery

T1490

Windows 7 deprecation

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads