wannacry | ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa

Target

ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe
Sample

200130-4gk56rvts6
SHA256

ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa

Score

10^/10

ransomware persistence 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: 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

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
4192	@[email protected]
4276	@[email protected]
4168	@[email protected]
5068	@[email protected]
996	@[email protected]
2608	@[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-1-5-21-634046074-2673730973-2644684987-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\Desktop\\@[email protected]"	@[email protected]
Set value (str)	\REGISTRY\USER\S-1-5-21-634046074-2673730973-2644684987-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\Desktop\\@[email protected]"	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe

Deletes shadow copies 2 TTPs 2 IoCs

ransomware

File Deletion

T1107

Inhibit System Recovery

T1490

pid	Process
3156	WMIC.exe
2500	vssadmin.exe

Drops startup file 6 IoCs

description	ioc	Process
File created (read-only)	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\~SDC51E.tmp	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\~SDC51E.tmp	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe
File deleted	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\~SDC51E.tmp	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe
File created (read-only)	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\~SDC4E9.tmp	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\~SDC4E9.tmp	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe
File deleted	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\~SDC4E9.tmp	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe

Suspicious use of AdjustPrivilegeToken 28 IoCs

description	pid	Process
Token: SeTcbPrivilege	3968	taskse.exe
Token: SeBackupPrivilege	2728	vssvc.exe
Token: SeRestorePrivilege	2728	vssvc.exe
Token: SeAuditPrivilege	2728	vssvc.exe
Token: SeIncreaseQuotaPrivilege	3156	WMIC.exe
Token: SeSecurityPrivilege	3156	WMIC.exe
Token: SeTakeOwnershipPrivilege	3156	WMIC.exe
Token: SeLoadDriverPrivilege	3156	WMIC.exe
Token: SeSystemProfilePrivilege	3156	WMIC.exe
Token: SeSystemtimePrivilege	3156	WMIC.exe
Token: SeProfSingleProcessPrivilege	3156	WMIC.exe
Token: SeIncBasePriorityPrivilege	3156	WMIC.exe
Token: SeCreatePagefilePrivilege	3156	WMIC.exe
Token: SeBackupPrivilege	3156	WMIC.exe
Token: SeRestorePrivilege	3156	WMIC.exe
Token: SeShutdownPrivilege	3156	WMIC.exe
Token: SeDebugPrivilege	3156	WMIC.exe
Token: SeSystemEnvironmentPrivilege	3156	WMIC.exe
Token: SeRemoteShutdownPrivilege	3156	WMIC.exe
Token: SeUndockPrivilege	3156	WMIC.exe
Token: SeManageVolumePrivilege	3156	WMIC.exe
Token: 33	3156	WMIC.exe
Token: 34	3156	WMIC.exe
Token: 35	3156	WMIC.exe
Token: 36	3156	WMIC.exe
Token: SeTcbPrivilege	5076	taskse.exe
Token: SeTcbPrivilege	376	taskse.exe
Token: SeTcbPrivilege	3968	taskse.exe

Loads dropped DLL 1 IoCs

pid	Process
792	taskhsvc.exe

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1158

pid	Process
4964	attrib.exe

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 4940 wrote to memory of 4964	4940	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	72
PID 4940 wrote to memory of 4972	4940	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	73
PID 4940 wrote to memory of 2028	4940	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	77
PID 4940 wrote to memory of 1004	4940	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	78
PID 1004 wrote to memory of 4524	1004	cmd.exe	80
PID 4940 wrote to memory of 4192	4940	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	85
PID 4940 wrote to memory of 4200	4940	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	86
PID 4200 wrote to memory of 4168	4200	cmd.exe	88
PID 4940 wrote to memory of 3968	4940	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	89
PID 4940 wrote to memory of 4276	4940	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	90
PID 4940 wrote to memory of 4728	4940	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	91
PID 4940 wrote to memory of 4916	4940	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	93
PID 4728 wrote to memory of 4904	4728	cmd.exe	94
PID 4192 wrote to memory of 792	4192	@[email protected]	96
PID 4168 wrote to memory of 2416	4168	@[email protected]	101
PID 2416 wrote to memory of 2500	2416	cmd.exe	103
PID 2416 wrote to memory of 3156	2416	cmd.exe	105
PID 4940 wrote to memory of 2588	4940	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	108
PID 4940 wrote to memory of 5076	4940	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	109
PID 4940 wrote to memory of 5068	4940	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	110
PID 4940 wrote to memory of 4368	4940	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	115
PID 4940 wrote to memory of 376	4940	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	116
PID 4940 wrote to memory of 996	4940	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	117
PID 4940 wrote to memory of 3968	4940	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	123
PID 4940 wrote to memory of 2608	4940	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	124
PID 4940 wrote to memory of 1740	4940	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	125

Modifies file permissions 1 TTPs 2 IoCs

File and Directory Permissions Modification

T1222

pid	Process
4972	icacls.exe
4972	icacls.exe

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\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

Executes dropped EXE 16 IoCs

pid	Process
2028	taskdl.exe
4192	@[email protected]
4168	@[email protected]
3968	taskse.exe
4276	@[email protected]
4916	taskdl.exe
792	taskhsvc.exe
2588	taskdl.exe
5076	taskse.exe
5068	@[email protected]
4368	taskdl.exe
376	taskse.exe
996	@[email protected]
3968	taskse.exe
2608	@[email protected]
1740	taskdl.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
792	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\nmsqcsinudawe237 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\tasksche.exe\""	reg.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

pid	Process
4904	reg.exe

C:\Users\Admin\AppData\Local\Temp\ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe
"C:\Users\Admin\AppData\Local\Temp\ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe"
1⤵
- Sets desktop wallpaper using registry
- Drops startup file
- Suspicious use of WriteProcessMemory
PID:4940
- C:\Windows\SysWOW64\attrib.exe
  attrib +h .
  2⤵
  - Views/modifies file attributes
  PID:4964
- C:\Windows\SysWOW64\icacls.exe
  icacls . /grant Everyone:F /T /C /Q
  2⤵
  - Modifies file permissions
  PID:4972
- C:\Users\Admin\AppData\Local\Temp\taskdl.exe
  taskdl.exe
  2⤵
  - Executes dropped EXE
  PID:2028
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c 214861580394802.bat
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1004
- - C:\Windows\SysWOW64\cscript.exe
    cscript.exe //nologo m.vbs
    3⤵
    PID:4524
- C:\Users\Admin\AppData\Local\Temp\@[email protected]
  @[email protected] co
  2⤵
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  - Executes dropped EXE
  PID:4192
- - 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:792
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c start /b @[email protected] vs
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4200
- - C:\Users\Admin\AppData\Local\Temp\@[email protected]
    @[email protected] vs
    3⤵
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    - Executes dropped EXE
    PID:4168
  - - 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:2416
    - - C:\Windows\SysWOW64\vssadmin.exe
        
        vssadmin delete shadows /all /quiet
        5⤵
        Deletes shadow copies
        
        PID:2500
    - - C:\Windows\SysWOW64\Wbem\WMIC.exe
        
        wmic shadowcopy delete
        5⤵
        Deletes shadow copies
        Suspicious use of AdjustPrivilegeToken
        
        PID:3156
- 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:3968
- C:\Users\Admin\AppData\Local\Temp\@[email protected]
  @[email protected]
  2⤵
  - Suspicious use of SetWindowsHookEx
  - Sets desktop wallpaper using registry
  - Executes dropped EXE
  PID:4276
- 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:4728
- - 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⤵
    - Adds Run entry to start application
    - Modifies registry key
    PID:4904
- C:\Users\Admin\AppData\Local\Temp\taskdl.exe
  taskdl.exe
  2⤵
  - Executes dropped EXE
  PID:4916
- C:\Users\Admin\AppData\Local\Temp\taskdl.exe
  taskdl.exe
  2⤵
  - Executes dropped EXE
  PID:2588
- 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:5076
- C:\Users\Admin\AppData\Local\Temp\@[email protected]
  @[email protected]
  2⤵
  - Suspicious use of SetWindowsHookEx
  - Executes dropped EXE
  PID:5068
- C:\Users\Admin\AppData\Local\Temp\taskdl.exe
  taskdl.exe
  2⤵
  - Executes dropped EXE
  PID:4368
- 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:376
- C:\Users\Admin\AppData\Local\Temp\@[email protected]
  @[email protected]
  2⤵
  - Suspicious use of SetWindowsHookEx
  - Executes dropped EXE
  PID:996
- 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:3968
- C:\Users\Admin\AppData\Local\Temp\@[email protected]
  @[email protected]
  2⤵
  - Suspicious use of SetWindowsHookEx
  - Executes dropped EXE
  PID:2608
- C:\Users\Admin\AppData\Local\Temp\taskdl.exe
  taskdl.exe
  2⤵
  - Executes dropped EXE
  PID:1740

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
- Modifies service
PID:2728

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/792-248-0x0000000003590000-0x0000000003591000-memory.dmp

Filesize
4KB

Download
memory/792-232-0x0000000003590000-0x0000000003591000-memory.dmp

Filesize
4KB

Download
memory/792-68-0x0000000003590000-0x0000000003591000-memory.dmp

Filesize
4KB

Download
memory/792-69-0x0000000003D90000-0x0000000003D91000-memory.dmp

Filesize
4KB

Download
memory/792-95-0x0000000003590000-0x0000000003591000-memory.dmp

Filesize
4KB

Download
memory/792-400-0x0000000003B40000-0x0000000003B41000-memory.dmp

Filesize
4KB

Download
memory/792-129-0x0000000003590000-0x0000000003591000-memory.dmp

Filesize
4KB

Download
memory/792-462-0x0000000003B40000-0x0000000003B41000-memory.dmp

Filesize
4KB

Download
memory/792-233-0x0000000003D90000-0x0000000003D91000-memory.dmp

Filesize
4KB

Download
memory/792-411-0x0000000003B40000-0x0000000003B41000-memory.dmp

Filesize
4KB

Download
memory/792-234-0x0000000003590000-0x0000000003591000-memory.dmp

Filesize
4KB

Download
memory/792-70-0x0000000003590000-0x0000000003591000-memory.dmp

Filesize
4KB

Download
memory/792-356-0x0000000003590000-0x0000000003591000-memory.dmp

Filesize
4KB

Download
memory/792-394-0x0000000003590000-0x0000000003591000-memory.dmp

Filesize
4KB

Download
memory/792-398-0x0000000003B40000-0x0000000003B41000-memory.dmp

Filesize
4KB

Download
memory/792-399-0x0000000004340000-0x0000000004341000-memory.dmp

Filesize
4KB

Download
memory/4192-47-0x0000000002640000-0x0000000002641000-memory.dmp

Filesize
4KB

Download
memory/4940-36-0x0000000010000000-0x0000000010010000-memory.dmp

Filesize
64KB

Download