wannacry | ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa

Resubmissions

31-12-2019 13:17

191231-af79t7zt9a 10

Analysis

max time kernel
149s
resource
win10v191014
submitted
31-12-2019 13:17

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General

Target

ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe
Sample

191231-af79t7zt9a
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

Suspicious use of AdjustPrivilegeToken 27 IoCs

description	pid	Process
Token: SeBackupPrivilege	1432	vssvc.exe
Token: SeRestorePrivilege	1432	vssvc.exe
Token: SeAuditPrivilege	1432	vssvc.exe
Token: SeIncreaseQuotaPrivilege	1692	WMIC.exe
Token: SeSecurityPrivilege	1692	WMIC.exe
Token: SeTakeOwnershipPrivilege	1692	WMIC.exe
Token: SeLoadDriverPrivilege	1692	WMIC.exe
Token: SeSystemProfilePrivilege	1692	WMIC.exe
Token: SeSystemtimePrivilege	1692	WMIC.exe
Token: SeProfSingleProcessPrivilege	1692	WMIC.exe
Token: SeIncBasePriorityPrivilege	1692	WMIC.exe
Token: SeCreatePagefilePrivilege	1692	WMIC.exe
Token: SeBackupPrivilege	1692	WMIC.exe
Token: SeRestorePrivilege	1692	WMIC.exe
Token: SeShutdownPrivilege	1692	WMIC.exe
Token: SeDebugPrivilege	1692	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1692	WMIC.exe
Token: SeRemoteShutdownPrivilege	1692	WMIC.exe
Token: SeUndockPrivilege	1692	WMIC.exe
Token: SeManageVolumePrivilege	1692	WMIC.exe
Token: 33	1692	WMIC.exe
Token: 34	1692	WMIC.exe
Token: 35	1692	WMIC.exe
Token: 36	1692	WMIC.exe
Token: SeTcbPrivilege	2496	taskse.exe
Token: SeTcbPrivilege	5044	taskse.exe
Token: SeTcbPrivilege	4564	taskse.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

pid	Process
4004	reg.exe

Deletes shadow copies 2 TTPs 2 IoCs

ransomware

File Deletion

T1107

Inhibit System Recovery

T1490

pid	Process
1692	WMIC.exe
1348	vssadmin.exe

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]"

Modifies file permissions 1 TTPs 1 IoCs

File and Directory Permissions Modification

T1222

pid	Process
4872	icacls.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 SetWindowsHookEx 5 IoCs

pid	Process
4100	@[email protected]
3928	@[email protected]
2656	@[email protected]
5032	@[email protected]
4492	@[email protected]

Loads dropped DLL 1 IoCs

pid	Process
4760	taskhsvc.exe

Drops startup file 6 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\~SDC0F8.tmp	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe
File deleted	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\~SDC0F8.tmp	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe
File created (read-only)	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\~SDC0B2.tmp	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\~SDC0B2.tmp	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe
File deleted	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\~SDC0B2.tmp	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe
File created (read-only)	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\~SDC0F8.tmp	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 4812 wrote to memory of 4836	4812	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	72
PID 4812 wrote to memory of 4872	4812	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	74
PID 4812 wrote to memory of 2032	4812	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	77
PID 4812 wrote to memory of 4176	4812	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	78
PID 4176 wrote to memory of 2028	4176	cmd.exe	80
PID 4812 wrote to memory of 3660	4812	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	85
PID 4812 wrote to memory of 3928	4812	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	86
PID 4812 wrote to memory of 3012	4812	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	87
PID 3012 wrote to memory of 4100	3012	cmd.exe	89
PID 3928 wrote to memory of 4760	3928	@[email protected]	93
PID 4100 wrote to memory of 1084	4100	@[email protected]	96
PID 1084 wrote to memory of 1348	1084	cmd.exe	98
PID 1084 wrote to memory of 1692	1084	cmd.exe	100
PID 4812 wrote to memory of 2496	4812	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	103
PID 4812 wrote to memory of 2656	4812	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	104
PID 4812 wrote to memory of 2668	4812	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	105
PID 2668 wrote to memory of 4004	2668	cmd.exe	107
PID 4812 wrote to memory of 4036	4812	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	108
PID 4812 wrote to memory of 5044	4812	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	112
PID 4812 wrote to memory of 5032	4812	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	113
PID 4812 wrote to memory of 5048	4812	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	114
PID 4812 wrote to memory of 4564	4812	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	120
PID 4812 wrote to memory of 4492	4812	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	121
PID 4812 wrote to memory of 668	4812	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	122

Executes dropped EXE 14 IoCs

pid	Process
2032	taskdl.exe
3660	taskdl.exe
3928	@[email protected]
4100	@[email protected]
4760	taskhsvc.exe
2496	taskse.exe
2656	@[email protected]
4036	taskdl.exe
5044	taskse.exe
5032	@[email protected]
5048	taskdl.exe
4564	taskse.exe
4492	@[email protected]
668	taskdl.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
4760	taskhsvc.exe

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1158

pid	Process
4836	attrib.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
PID:4812
- C:\Windows\SysWOW64\attrib.exe
  attrib +h .
  2⤵
  - Views/modifies file attributes
  PID:4836
- C:\Windows\SysWOW64\icacls.exe
  icacls . /grant Everyone:F /T /C /Q
  2⤵
  - Modifies file permissions
  PID:4872
- C:\Users\Admin\AppData\Local\Temp\taskdl.exe
  taskdl.exe
  2⤵
  - Executes dropped EXE
  PID:2032
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c 219991577803695.bat
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4176
- - C:\Windows\SysWOW64\cscript.exe
    cscript.exe //nologo m.vbs
    3⤵
    PID:2028
- C:\Users\Admin\AppData\Local\Temp\taskdl.exe
  taskdl.exe
  2⤵
  - Executes dropped EXE
  PID:3660
- C:\Users\Admin\AppData\Local\Temp\@[email protected]
  @[email protected] co
  2⤵
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  - Executes dropped EXE
  PID:3928
- - 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:4760
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c start /b @[email protected] vs
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3012
- - C:\Users\Admin\AppData\Local\Temp\@[email protected]
    @[email protected] vs
    3⤵
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    - Executes dropped EXE
    PID:4100
  - - 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:1084
    - - C:\Windows\SysWOW64\vssadmin.exe
        
        vssadmin delete shadows /all /quiet
        5⤵
        Deletes shadow copies
        
        PID:1348
    - - C:\Windows\SysWOW64\Wbem\WMIC.exe
        
        wmic shadowcopy delete
        5⤵
        Suspicious use of AdjustPrivilegeToken
        Deletes shadow copies
        
        PID:1692
- 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:2496
- C:\Users\Admin\AppData\Local\Temp\@[email protected]
  @[email protected]
  2⤵
  - Suspicious use of SetWindowsHookEx
  - Executes dropped EXE
  PID:2656
- 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:2668
- - 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:4004
- C:\Users\Admin\AppData\Local\Temp\taskdl.exe
  taskdl.exe
  2⤵
  - Executes dropped EXE
  PID:4036
- 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:5044
- C:\Users\Admin\AppData\Local\Temp\@[email protected]
  @[email protected]
  2⤵
  - Suspicious use of SetWindowsHookEx
  - Executes dropped EXE
  PID:5032
- C:\Users\Admin\AppData\Local\Temp\taskdl.exe
  taskdl.exe
  2⤵
  - Executes dropped EXE
  PID:5048
- 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:4564
- C:\Users\Admin\AppData\Local\Temp\@[email protected]
  @[email protected]
  2⤵
  - Suspicious use of SetWindowsHookEx
  - Executes dropped EXE
  PID:4492
- C:\Users\Admin\AppData\Local\Temp\taskdl.exe
  taskdl.exe
  2⤵
  - Executes dropped EXE
  PID:668

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1432

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/4760-64-0x0000000002F70000-0x0000000002F71000-memory.dmp

Filesize
4KB

Download
memory/4760-63-0x0000000003770000-0x0000000003771000-memory.dmp

Filesize
4KB

Download
memory/4760-62-0x0000000002F70000-0x0000000002F71000-memory.dmp

Filesize
4KB

Download
memory/4760-72-0x0000000002F70000-0x0000000002F71000-memory.dmp

Filesize
4KB

Download
memory/4760-226-0x0000000002F70000-0x0000000002F71000-memory.dmp

Filesize
4KB

Download
memory/4760-227-0x0000000003770000-0x0000000003771000-memory.dmp

Filesize
4KB

Download
memory/4760-228-0x0000000002F70000-0x0000000002F71000-memory.dmp

Filesize
4KB

Download
memory/4760-392-0x0000000003530000-0x0000000003531000-memory.dmp

Filesize
4KB

Download
memory/4760-393-0x0000000003D30000-0x0000000003D31000-memory.dmp

Filesize
4KB

Download
memory/4760-395-0x0000000003530000-0x0000000003531000-memory.dmp

Filesize
4KB

Download
memory/4760-438-0x0000000003530000-0x0000000003531000-memory.dmp

Filesize
4KB

Download
memory/4812-36-0x0000000010000000-0x0000000010010000-memory.dmp

Filesize
64KB

Download