wannacry | ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa

Target

ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe
Sample

200115-tjbwar5bfj
SHA256

ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa

Score

10^/10

persistence discovery ransomware worm wannacry

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\@[email protected]

Family

wannacry

Ransom Note

Q: What's wrong with my files? A: Ooops, your important files are encrypted. It means you will not be able to access them anymore until they are decrypted. If you follow our instructions, we guarantee that you can decrypt all your files quickly and safely! Let's start decrypting! Q: What do I do? A: First, you need to pay service fees for the decryption. Please send $300 worth of bitcoin to this bitcoin address: 12t9YDPgwueZ9NyMgw519p7AA8isjr6SMw Next, please find an application file named "@[email protected]". It is the decrypt software. Run and follow the instructions! (You may need to disable your antivirus for a while.) Q: How can I trust? A: Don't worry about decryption. We will decrypt your files surely because nobody will trust us if we cheat users. * If you need our assistance, send a message by clicking <Contact Us> on the decryptor window. �

Wallets

12t9YDPgwueZ9NyMgw519p7AA8isjr6SMw

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
936	@[email protected]

Modifies file permissions 1 TTPs 2 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
1120	icacls.exe
1120	icacls.exe

Suspicious use of AdjustPrivilegeToken 27 IoCs

description	pid	Process
Token: SeBackupPrivilege	2032	vssvc.exe
Token: SeRestorePrivilege	2032	vssvc.exe
Token: SeAuditPrivilege	2032	vssvc.exe
Token: SeTcbPrivilege	2020	taskse.exe
Token: SeIncreaseQuotaPrivilege	1208	WMIC.exe
Token: SeSecurityPrivilege	1208	WMIC.exe
Token: SeTakeOwnershipPrivilege	1208	WMIC.exe
Token: SeLoadDriverPrivilege	1208	WMIC.exe
Token: SeSystemProfilePrivilege	1208	WMIC.exe
Token: SeSystemtimePrivilege	1208	WMIC.exe
Token: SeProfSingleProcessPrivilege	1208	WMIC.exe
Token: SeIncBasePriorityPrivilege	1208	WMIC.exe
Token: SeCreatePagefilePrivilege	1208	WMIC.exe
Token: SeBackupPrivilege	1208	WMIC.exe
Token: SeRestorePrivilege	1208	WMIC.exe
Token: SeShutdownPrivilege	1208	WMIC.exe
Token: SeDebugPrivilege	1208	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1208	WMIC.exe
Token: SeRemoteShutdownPrivilege	1208	WMIC.exe
Token: SeUndockPrivilege	1208	WMIC.exe
Token: SeManageVolumePrivilege	1208	WMIC.exe
Token: 33	1208	WMIC.exe
Token: 34	1208	WMIC.exe
Token: 35	1208	WMIC.exe
Token: SeTcbPrivilege	2024	taskse.exe
Token: SeTcbPrivilege	572	taskse.exe
Token: SeTcbPrivilege	1568	taskse.exe

Deletes shadow copies 2 TTPs 2 IoCs

ransomware

File Deletion

T1107

Inhibit System Recovery

T1490

pid	Process
1216	vssadmin.exe
1208	WMIC.exe

Drops startup file 6 IoCs

description	ioc	Process
File deleted	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\~SD639F.tmp	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe
File created (read-only)	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\~SD63D2.tmp	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\~SD63D2.tmp	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe
File deleted	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\~SD63D2.tmp	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe
File created (read-only)	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\~SD639F.tmp	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\~SD639F.tmp	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 1340 wrote to memory of 1272	1340	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	27
PID 1340 wrote to memory of 1120	1340	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	29
PID 1340 wrote to memory of 1884	1340	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	31
PID 1340 wrote to memory of 1972	1340	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	32
PID 1972 wrote to memory of 1356	1972	cmd.exe	34
PID 1340 wrote to memory of 1292	1340	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	36
PID 1340 wrote to memory of 1984	1340	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	37
PID 1984 wrote to memory of 1108	1984	cmd.exe	39
PID 1292 wrote to memory of 1640	1292	@[email protected]	41
PID 1108 wrote to memory of 2040	1108	@[email protected]	43
PID 2040 wrote to memory of 1216	2040	cmd.exe	45
PID 1340 wrote to memory of 1852	1340	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	48
PID 1340 wrote to memory of 2020	1340	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	49
PID 2040 wrote to memory of 1208	2040	cmd.exe	47
PID 1340 wrote to memory of 936	1340	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	50
PID 1340 wrote to memory of 1272	1340	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	51
PID 1272 wrote to memory of 656	1272	cmd.exe	53
PID 1340 wrote to memory of 1108	1340	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	55
PID 1340 wrote to memory of 2024	1340	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	56
PID 1340 wrote to memory of 1636	1340	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	57
PID 1340 wrote to memory of 1784	1340	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	59
PID 1340 wrote to memory of 572	1340	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	60
PID 1340 wrote to memory of 440	1340	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	61
PID 1340 wrote to memory of 2020	1340	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	64
PID 1340 wrote to memory of 1568	1340	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	65
PID 1340 wrote to memory of 1108	1340	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	66

Loads dropped DLL 5 IoCs

pid	Process
1340	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe
1356	cscript.exe
1984	cmd.exe
1292	@[email protected]
1640	taskhsvc.exe

Executes dropped EXE 16 IoCs

pid	Process
1884	taskdl.exe
1292	@[email protected]
1108	@[email protected]
1640	taskhsvc.exe
1852	taskdl.exe
2020	taskse.exe
936	@[email protected]
1108	taskdl.exe
2024	taskse.exe
1636	@[email protected]
1784	taskdl.exe
572	taskse.exe
440	@[email protected]
2020	taskdl.exe
1568	taskse.exe
1108	@[email protected]

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
1292	@[email protected]
1108	@[email protected]
936	@[email protected]
1636	@[email protected]
440	@[email protected]
1108	@[email protected]

Sets desktop wallpaper using registry 2 TTPs 2 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1774239815-1814403401-2200974991-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\Desktop\\@[email protected]"	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1774239815-1814403401-2200974991-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\Desktop\\@[email protected]"	@[email protected]

Modifies service 2 TTPs 4 IoCs

persistence

Modify Registry

T1112

Modify Existing Service

T1031

description	ioc	Process
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\Registry Writer	vssvc.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1640	taskhsvc.exe

Adds Run entry to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	reg.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\ftqqepmlkbmm513 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\tasksche.exe\""	reg.exe

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1158

pid	Process
1272	attrib.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

pid	Process
656	reg.exe

C:\Users\Admin\AppData\Local\Temp\ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe
"C:\Users\Admin\AppData\Local\Temp\ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe"
1⤵
- Drops startup file
- Suspicious use of WriteProcessMemory
- Loads dropped DLL
- Sets desktop wallpaper using registry
PID:1340
- C:\Windows\SysWOW64\attrib.exe
  attrib +h .
  2⤵
  - Views/modifies file attributes
  PID:1272
- C:\Windows\SysWOW64\icacls.exe
  icacls . /grant Everyone:F /T /C /Q
  2⤵
  - Modifies file permissions
  PID:1120
- C:\Users\Admin\AppData\Local\Temp\taskdl.exe
  taskdl.exe
  2⤵
  - Executes dropped EXE
  PID:1884
- C:\Windows\SysWOW64\cmd.exe
  cmd /c 29681579105649.bat
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1972
- - C:\Windows\SysWOW64\cscript.exe
    cscript.exe //nologo m.vbs
    3⤵
    - Loads dropped DLL
    PID:1356
- C:\Users\Admin\AppData\Local\Temp\@[email protected]
  @[email protected] co
  2⤵
  - Suspicious use of WriteProcessMemory
  - Loads dropped DLL
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:1292
- - C:\Users\Admin\AppData\Local\Temp\TaskData\Tor\taskhsvc.exe
    TaskData\Tor\taskhsvc.exe
    3⤵
    - Loads dropped DLL
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    PID:1640
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c start /b @[email protected] vs
  2⤵
  - Suspicious use of WriteProcessMemory
  - Loads dropped DLL
  PID:1984
- - C:\Users\Admin\AppData\Local\Temp\@[email protected]
    @[email protected] vs
    3⤵
    - Suspicious use of WriteProcessMemory
    - Executes dropped EXE
    - Suspicious use of SetWindowsHookEx
    PID:1108
  - - C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c vssadmin delete shadows /all /quiet & wmic shadowcopy delete & bcdedit /set {default} bootstatuspolicy ignoreallfailures & bcdedit /set {default} recoveryenabled no & wbadmin delete catalog -quiet
      4⤵
      Suspicious use of WriteProcessMemory
      PID:2040
    - - C:\Windows\SysWOW64\vssadmin.exe
        
        vssadmin delete shadows /all /quiet
        5⤵
        Deletes shadow copies
        
        PID:1216
    - - C:\Windows\SysWOW64\Wbem\WMIC.exe
        
        wmic shadowcopy delete
        5⤵
        Suspicious use of AdjustPrivilegeToken
        Deletes shadow copies
        
        PID:1208
- C:\Users\Admin\AppData\Local\Temp\taskdl.exe
  taskdl.exe
  2⤵
  - Executes dropped EXE
  PID:1852
- C:\Users\Admin\AppData\Local\Temp\taskse.exe
  taskse.exe C:\Users\Admin\AppData\Local\Temp\@[email protected]
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  - Executes dropped EXE
  PID:2020
- C:\Users\Admin\AppData\Local\Temp\@[email protected]
  @[email protected]
  2⤵
  - Suspicious behavior: GetForegroundWindowSpam
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  - Sets desktop wallpaper using registry
  PID:936
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c reg add HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /v "ftqqepmlkbmm513" /t REG_SZ /d "\"C:\Users\Admin\AppData\Local\Temp\tasksche.exe\"" /f
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1272
- - C:\Windows\SysWOW64\reg.exe
    reg add HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /v "ftqqepmlkbmm513" /t REG_SZ /d "\"C:\Users\Admin\AppData\Local\Temp\tasksche.exe\"" /f
    3⤵
    - Adds Run entry to start application
    - Modifies registry key
    PID:656
- C:\Users\Admin\AppData\Local\Temp\taskdl.exe
  taskdl.exe
  2⤵
  - Executes dropped EXE
  PID:1108
- C:\Users\Admin\AppData\Local\Temp\taskse.exe
  taskse.exe C:\Users\Admin\AppData\Local\Temp\@[email protected]
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  - Executes dropped EXE
  PID:2024
- C:\Users\Admin\AppData\Local\Temp\@[email protected]
  @[email protected]
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:1636
- C:\Users\Admin\AppData\Local\Temp\taskdl.exe
  taskdl.exe
  2⤵
  - Executes dropped EXE
  PID:1784
- C:\Users\Admin\AppData\Local\Temp\taskse.exe
  taskse.exe C:\Users\Admin\AppData\Local\Temp\@[email protected]
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  - Executes dropped EXE
  PID:572
- C:\Users\Admin\AppData\Local\Temp\@[email protected]
  @[email protected]
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:440
- C:\Users\Admin\AppData\Local\Temp\taskdl.exe
  taskdl.exe
  2⤵
  - Executes dropped EXE
  PID:2020
- C:\Users\Admin\AppData\Local\Temp\taskse.exe
  taskse.exe C:\Users\Admin\AppData\Local\Temp\@[email protected]
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  - Executes dropped EXE
  PID:1568
- C:\Users\Admin\AppData\Local\Temp\@[email protected]
  @[email protected]
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:1108

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
- Modifies service
PID:2032

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Hidden Files and Directories

T1158

Modify Existing Service

T1031

Registry Run Keys / Startup Folder

T1060

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

Defacement

T1491

Inhibit System Recovery

T1490

Replay Monitor

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Downloads

memory/1340-2-0x0000000010000000-0x0000000010010000-memory.dmp

Filesize
64KB

Download
memory/1356-44-0x00000000026A0000-0x00000000026A4000-memory.dmp

Filesize
16KB

Download
memory/1640-69-0x0000000002F80000-0x0000000002F91000-memory.dmp

Filesize
68KB

Download
memory/1640-403-0x0000000003630000-0x0000000003641000-memory.dmp

Filesize
68KB

Download
memory/1640-237-0x0000000002B70000-0x0000000002B81000-memory.dmp

Filesize
68KB

Download
memory/1640-402-0x0000000003220000-0x0000000003231000-memory.dmp

Filesize
68KB

Download
memory/1640-70-0x0000000002B70000-0x0000000002B81000-memory.dmp

Filesize
68KB

Download
memory/1640-68-0x0000000002B70000-0x0000000002B81000-memory.dmp

Filesize
68KB

Download
memory/1640-235-0x0000000002B70000-0x0000000002B81000-memory.dmp

Filesize
68KB

Download
memory/1640-404-0x0000000003220000-0x0000000003231000-memory.dmp

Filesize
68KB

Download
memory/1640-236-0x0000000002F80000-0x0000000002F91000-memory.dmp

Filesize
68KB

Download