wastedlocker | 8897db876553f942b2eb4005f8475a232bafb82a50ca7761a621842e894a3d80

Analysis

max time kernel
144s
max time network
149s
platform
windows10_x64
resource
win10v200430
submitted
30-06-2020 15:30

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General

Target

8897db876553f942b2eb4005f8475a232bafb82a50ca7761a621842e894a3d80.exe
Size

56KB
MD5

ecb00e9a61f99a7d4c90723294986bbc
SHA1

be59c867da75e2a66b8c2519e950254f817cd4ad
SHA256

8897db876553f942b2eb4005f8475a232bafb82a50ca7761a621842e894a3d80
SHA512

9dee79827d865de41a63962b419eed7e1f9610ff27f00f8b7b2b9f51e905d5db907d310da590d8f1a11ac88e549373edf39bffdb44d1b205728f1b5e0a43aa5e

Score

10^/10

ransomware exploit wastedlocker persistence discovery

Malware Config

Extracted

Path

C:\Users\Admin\Desktop\MoveDeny.mpeg3.eswasted_info.txt

Family

wastedlocker

Ransom Note

ENERGYSOLUTIONS YOUR NETWORK IS ENCRYPTED NOW USE [email protected] | [email protected] TO GET THE PRICE FOR YOUR DATA DO NOT GIVE THIS EMAIL TO 3RD PARTIES DO NOT RENAME OR MOVE THE FILE THE FILE IS ENCRYPTED WITH THE FOLLOWING KEY: [begin_key]i34DEHUNZz4v4dXnXaZzEMw8LWWGz5Hx8p8OgNO/t+4E59XzfEYiE9T3WkJnk3tM v29T2bl/tukZPXI9NWFM1T6/5LxMLH2LAnJoEbba/CwLy4lPWfb4B/ilz8dEWVJD hjk5SbSrtzqzFDqFKzEmu5p4CYdt5qMMaTz1M9fHxWTWFKeD4nS1poA9V7DtkUH3 B/1U7pupwNKe9xFoQcHzehtk/4cFioBdFH9lRwvm9IlRzPbJ6HiWkkWPB9fJpi+r H0aBoejQEYDzk7YDeNs+Cm8aqTaZ/xdi5pkPKGsvOefqjKHwKlNbugKVS0kDz+Y4 48gBQkQWt+YeP/MxvY1/En9x/lj2M5aGK9pZ/YT0A3KR9FQpADyeqnLbnpdlYQ00 mZnBG9rkyY/+hogd4HJNVNu/sL9kuqSOzQgtG39akpZk4RGPF/gGGat8ExUbBNrQ AtDMysnLaAIGkM9eo1yXuEWXUgUnR3ITfQehV1A7jkQ0mQ1Wy25fbebt9ejJGNUj j3Rk79xhp7Zcc8xHBLnxBU/jdijMdsazdxDXV/Nw+WbNCQeKT/vThiJKeu+Gf1co HDH13G3dlBDfLVmBty2AT0i19AwGtQRywBm8Wxjzg+/JJSAm3GL/ct0CdoDC7qe6 2Tdv+Tjkdb1KQ9bvuJGpfmb2UGif0ZEdHR5gofzpYt/=[end_key] KEEP IT

Emails

[email protected]

Signatures

Views/modifies file attributes 1 TTPs 3 IoCs

evasion

Hidden Files and Directories

T1158

pid	Process
256	attrib.exe
276	attrib.exe
1736	attrib.exe

Executes dropped EXE 2 IoCs

pid	Process
1740	Mode:bin
3860	Mode.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeBackupPrivilege	2392	vssvc.exe
Token: SeRestorePrivilege	2392	vssvc.exe
Token: SeAuditPrivilege	2392	vssvc.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
1980	vssadmin.exe

Possible privilege escalation attempt 2 IoCs

exploit

pid	Process
296	takeown.exe
2836	icacls.exe

WastedLocker
Ransomware family seen in the wild since May 2020.
ransomware wastedlocker
Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
ransomware

File Deletion
T1107

Inhibit System Recovery
T1490

Modifies file permissions 1 TTPs 2 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
296	takeown.exe
2836	icacls.exe

Suspicious use of WriteProcessMemory 38 IoCs

description	pid	Process	procid_target
PID 1628 wrote to memory of 1740	1628	8897db876553f942b2eb4005f8475a232bafb82a50ca7761a621842e894a3d80.exe	68
PID 1628 wrote to memory of 1740	1628	8897db876553f942b2eb4005f8475a232bafb82a50ca7761a621842e894a3d80.exe	68
PID 1628 wrote to memory of 1740	1628	8897db876553f942b2eb4005f8475a232bafb82a50ca7761a621842e894a3d80.exe	68
PID 1740 wrote to memory of 1980	1740	Mode:bin	69
PID 1740 wrote to memory of 1980	1740	Mode:bin	69
PID 1740 wrote to memory of 296	1740	Mode:bin	73
PID 1740 wrote to memory of 296	1740	Mode:bin	73
PID 1740 wrote to memory of 296	1740	Mode:bin	73
PID 1740 wrote to memory of 2836	1740	Mode:bin	75
PID 1740 wrote to memory of 2836	1740	Mode:bin	75
PID 1740 wrote to memory of 2836	1740	Mode:bin	75
PID 3860 wrote to memory of 3868	3860	Mode.exe	79
PID 3860 wrote to memory of 3868	3860	Mode.exe	79
PID 3860 wrote to memory of 3868	3860	Mode.exe	79
PID 3868 wrote to memory of 4004	3868	cmd.exe	81
PID 3868 wrote to memory of 4004	3868	cmd.exe	81
PID 3868 wrote to memory of 4004	3868	cmd.exe	81
PID 1740 wrote to memory of 1772	1740	Mode:bin	82
PID 1740 wrote to memory of 1772	1740	Mode:bin	82
PID 1740 wrote to memory of 1772	1740	Mode:bin	82
PID 1628 wrote to memory of 4024	1628	8897db876553f942b2eb4005f8475a232bafb82a50ca7761a621842e894a3d80.exe	84
PID 1628 wrote to memory of 4024	1628	8897db876553f942b2eb4005f8475a232bafb82a50ca7761a621842e894a3d80.exe	84
PID 1628 wrote to memory of 4024	1628	8897db876553f942b2eb4005f8475a232bafb82a50ca7761a621842e894a3d80.exe	84
PID 1772 wrote to memory of 1652	1772	cmd.exe	86
PID 1772 wrote to memory of 1652	1772	cmd.exe	86
PID 1772 wrote to memory of 1652	1772	cmd.exe	86
PID 4024 wrote to memory of 3544	4024	cmd.exe	87
PID 4024 wrote to memory of 3544	4024	cmd.exe	87
PID 4024 wrote to memory of 3544	4024	cmd.exe	87
PID 3868 wrote to memory of 256	3868	cmd.exe	92
PID 3868 wrote to memory of 256	3868	cmd.exe	92
PID 3868 wrote to memory of 256	3868	cmd.exe	92
PID 1772 wrote to memory of 276	1772	cmd.exe	93
PID 1772 wrote to memory of 276	1772	cmd.exe	93
PID 1772 wrote to memory of 276	1772	cmd.exe	93
PID 4024 wrote to memory of 1736	4024	cmd.exe	94
PID 4024 wrote to memory of 1736	4024	cmd.exe	94
PID 4024 wrote to memory of 1736	4024	cmd.exe	94

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

Drops file in System32 directory 2 IoCs

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

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
1632	NOTEPAD.EXE

NTFS ADS 1 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Mode:bin	8897db876553f942b2eb4005f8475a232bafb82a50ca7761a621842e894a3d80.exe

C:\Users\Admin\AppData\Local\Temp\8897db876553f942b2eb4005f8475a232bafb82a50ca7761a621842e894a3d80.exe
"C:\Users\Admin\AppData\Local\Temp\8897db876553f942b2eb4005f8475a232bafb82a50ca7761a621842e894a3d80.exe"
1⤵
- Suspicious use of WriteProcessMemory
- NTFS ADS
PID:1628
- C:\Users\Admin\AppData\Roaming\Mode:bin
  C:\Users\Admin\AppData\Roaming\Mode:bin -r
  2⤵
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  - Drops file in System32 directory
  PID:1740
- - C:\Windows\system32\vssadmin.exe
    C:\Windows\system32\vssadmin.exe Delete Shadows /All /Quiet
    3⤵
    - Interacts with shadow copies
    PID:1980
- - C:\Windows\SysWOW64\takeown.exe
    C:\Windows\system32\takeown.exe /F C:\Windows\system32\Mode.exe
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:296
- - C:\Windows\SysWOW64\icacls.exe
    C:\Windows\system32\icacls.exe C:\Windows\system32\Mode.exe /reset
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:2836
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c choice /t 10 /d y & attrib -h "C:\Users\Admin\AppData\Roaming\Mode" & del "C:\Users\Admin\AppData\Roaming\Mode"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1772
  - - C:\Windows\SysWOW64\choice.exe
      choice /t 10 /d y
      4⤵
      PID:1652
  - - C:\Windows\SysWOW64\attrib.exe
      attrib -h "C:\Users\Admin\AppData\Roaming\Mode"
      4⤵
      Views/modifies file attributes
      PID:276
- C:\Windows\SysWOW64\cmd.exe
  cmd /c choice /t 10 /d y & attrib -h "C:\Users\Admin\AppData\Local\Temp\8897db876553f942b2eb4005f8475a232bafb82a50ca7761a621842e894a3d80.exe" & del "C:\Users\Admin\AppData\Local\Temp\8897db876553f942b2eb4005f8475a232bafb82a50ca7761a621842e894a3d80.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4024
- - C:\Windows\SysWOW64\choice.exe
    choice /t 10 /d y
    3⤵
    PID:3544
- - C:\Windows\SysWOW64\attrib.exe
    attrib -h "C:\Users\Admin\AppData\Local\Temp\8897db876553f942b2eb4005f8475a232bafb82a50ca7761a621842e894a3d80.exe"
    3⤵
    - Views/modifies file attributes
    PID:1736

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
- Modifies service
PID:2392

C:\Windows\SysWOW64\Mode.exe
C:\Windows\SysWOW64\Mode.exe -s
1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3860
- C:\Windows\SysWOW64\cmd.exe
  cmd /c choice /t 10 /d y & attrib -h "C:\Windows\SysWOW64\Mode.exe" & del "C:\Windows\SysWOW64\Mode.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3868
- - C:\Windows\SysWOW64\choice.exe
    choice /t 10 /d y
    3⤵
    PID:4004
- - C:\Windows\SysWOW64\attrib.exe
    attrib -h "C:\Windows\SysWOW64\Mode.exe"
    3⤵
    - Views/modifies file attributes
    - Drops file in System32 directory
    PID:256

C:\Windows\system32\NOTEPAD.EXE
"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\MoveDeny.mpeg3.eswasted_info.txt
1⤵
- Opens file in notepad (likely ransom note)
PID:1632

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

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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