wannacry | 72b228f51cf5a1b7600f0e0848145e4e54e54838977a5a5b1c85f69b64b92cf5

Analysis

max time kernel
140s
resource
win7v191014
submitted
30-12-2019 13:54

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General

Target

test.zip
Sample

191230-wtyfvq9dga
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: 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

Suspicious use of AdjustPrivilegeToken 27 IoCs

description	pid	Process
Token: SeBackupPrivilege	1332	vssvc.exe
Token: SeRestorePrivilege	1332	vssvc.exe
Token: SeAuditPrivilege	1332	vssvc.exe
Token: SeIncreaseQuotaPrivilege	1204	WMIC.exe
Token: SeSecurityPrivilege	1204	WMIC.exe
Token: SeTakeOwnershipPrivilege	1204	WMIC.exe
Token: SeLoadDriverPrivilege	1204	WMIC.exe
Token: SeSystemProfilePrivilege	1204	WMIC.exe
Token: SeSystemtimePrivilege	1204	WMIC.exe
Token: SeProfSingleProcessPrivilege	1204	WMIC.exe
Token: SeIncBasePriorityPrivilege	1204	WMIC.exe
Token: SeCreatePagefilePrivilege	1204	WMIC.exe
Token: SeBackupPrivilege	1204	WMIC.exe
Token: SeRestorePrivilege	1204	WMIC.exe
Token: SeShutdownPrivilege	1204	WMIC.exe
Token: SeDebugPrivilege	1204	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1204	WMIC.exe
Token: SeRemoteShutdownPrivilege	1204	WMIC.exe
Token: SeUndockPrivilege	1204	WMIC.exe
Token: SeManageVolumePrivilege	1204	WMIC.exe
Token: 33	1204	WMIC.exe
Token: 34	1204	WMIC.exe
Token: 35	1204	WMIC.exe
Token: SeTcbPrivilege	388	taskse.exe
Token: SeTcbPrivilege	1380	taskse.exe
Token: SeTcbPrivilege	2020	taskse.exe
Token: SeTcbPrivilege	984	taskse.exe

Deletes shadow copies 2 TTPs 2 IoCs

ransomware

File Deletion

T1107

Inhibit System Recovery

T1490

pid	Process
1204	WMIC.exe
1856	vssadmin.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

pid	Process
1892	reg.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 1268 wrote to memory of 812	1268	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	27
PID 1268 wrote to memory of 1744	1268	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	29
PID 1268 wrote to memory of 1936	1268	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	31
PID 1268 wrote to memory of 1992	1268	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	32
PID 1992 wrote to memory of 1108	1992	cmd.exe	34
PID 1268 wrote to memory of 740	1268	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	36
PID 1268 wrote to memory of 1856	1268	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	37
PID 1856 wrote to memory of 1400	1856	cmd.exe	39
PID 740 wrote to memory of 284	740	@[email protected]	41
PID 1400 wrote to memory of 1272	1400	@[email protected]	43
PID 1272 wrote to memory of 1856	1272	cmd.exe	45
PID 1272 wrote to memory of 1204	1272	cmd.exe	47
PID 1268 wrote to memory of 1988	1268	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	48
PID 1268 wrote to memory of 388	1268	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	49
PID 1268 wrote to memory of 1100	1268	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	50
PID 1268 wrote to memory of 744	1268	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	51
PID 744 wrote to memory of 1892	744	cmd.exe	53
PID 1268 wrote to memory of 1104	1268	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	55
PID 1268 wrote to memory of 1380	1268	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	56
PID 1268 wrote to memory of 1892	1268	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	57
PID 1268 wrote to memory of 1656	1268	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	59
PID 1268 wrote to memory of 2020	1268	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	60
PID 1268 wrote to memory of 1848	1268	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	61
PID 1268 wrote to memory of 1688	1268	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	64
PID 1268 wrote to memory of 984	1268	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	65
PID 1268 wrote to memory of 1224	1268	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	66

Loads dropped DLL 5 IoCs

pid	Process
1268	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe
1108	cscript.exe
1856	cmd.exe
740	@[email protected]
284	taskhsvc.exe

Executes dropped EXE 16 IoCs

pid	Process
1936	taskdl.exe
740	@[email protected]
1400	@[email protected]
284	taskhsvc.exe
1988	taskdl.exe
388	taskse.exe
1100	@[email protected]
1104	taskdl.exe
1380	taskse.exe
1892	@[email protected]
1656	taskdl.exe
1848	@[email protected]
2020	taskse.exe
1688	taskdl.exe
984	taskse.exe
1224	@[email protected]

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
740	@[email protected]
1400	@[email protected]
1100	@[email protected]
1892	@[email protected]
1848	@[email protected]
1224	@[email protected]

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
284	taskhsvc.exe

Drops startup file 6 IoCs

description	ioc	Process
File created (read-only)	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\~SD690C.tmp	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\~SD690C.tmp	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe
File deleted	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\~SD690C.tmp	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe
File created (read-only)	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\~SD693F.tmp	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\~SD693F.tmp	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe
File deleted	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\~SD693F.tmp	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry

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\ftqqepmlkbmm513 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\tasksche.exe\""

Modifies file permissions 1 TTPs 1 IoCs

File and Directory Permissions Modification

T1222

pid	Process
1744	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-1-5-21-1774239815-1814403401-2200974991-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\Desktop\\@[email protected]"

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1158

pid	Process
812	attrib.exe

C:\Users\Admin\AppData\Local\Temp\ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe
"C:\Users\Admin\AppData\Local\Temp\ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe"
1⤵
- Suspicious use of WriteProcessMemory
- Loads dropped DLL
- Drops startup file
PID:1268
- C:\Windows\SysWOW64\attrib.exe
  attrib +h .
  2⤵
  - Views/modifies file attributes
  PID:812
- C:\Windows\SysWOW64\icacls.exe
  icacls . /grant Everyone:F /T /C /Q
  2⤵
  - Modifies file permissions
  PID:1744
- C:\Users\Admin\AppData\Local\Temp\taskdl.exe
  taskdl.exe
  2⤵
  - Executes dropped EXE
  PID:1936
- C:\Windows\SysWOW64\cmd.exe
  cmd /c 83171577717710.bat
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1992
- - C:\Windows\SysWOW64\cscript.exe
    cscript.exe //nologo m.vbs
    3⤵
    - Loads dropped DLL
    PID:1108
- 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:740
- - 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:284
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c start /b @[email protected] vs
  2⤵
  - Suspicious use of WriteProcessMemory
  - Loads dropped DLL
  PID:1856
- - C:\Users\Admin\AppData\Local\Temp\@[email protected]
    @[email protected] vs
    3⤵
    - Suspicious use of WriteProcessMemory
    - Executes dropped EXE
    - Suspicious use of SetWindowsHookEx
    PID:1400
  - - 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:1272
    - - C:\Windows\SysWOW64\vssadmin.exe
        
        vssadmin delete shadows /all /quiet
        5⤵
        Deletes shadow copies
        
        PID:1856
    - - C:\Windows\SysWOW64\Wbem\WMIC.exe
        
        wmic shadowcopy delete
        5⤵
        Suspicious use of AdjustPrivilegeToken
        Deletes shadow copies
        
        PID:1204
- C:\Users\Admin\AppData\Local\Temp\taskdl.exe
  taskdl.exe
  2⤵
  - Executes dropped EXE
  PID:1988
- 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:388
- C:\Users\Admin\AppData\Local\Temp\@[email protected]
  @[email protected]
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:1100
- 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:744
- - 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⤵
    - Modifies registry key
    PID:1892
- C:\Users\Admin\AppData\Local\Temp\taskdl.exe
  taskdl.exe
  2⤵
  - Executes dropped EXE
  PID:1104
- 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:1380
- C:\Users\Admin\AppData\Local\Temp\@[email protected]
  @[email protected]
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:1892
- C:\Users\Admin\AppData\Local\Temp\taskdl.exe
  taskdl.exe
  2⤵
  - Executes dropped EXE
  PID:1656
- 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⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:1848
- C:\Users\Admin\AppData\Local\Temp\taskdl.exe
  taskdl.exe
  2⤵
  - Executes dropped EXE
  PID:1688
- 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:984
- C:\Users\Admin\AppData\Local\Temp\@[email protected]
  @[email protected]
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:1224

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1332

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/284-70-0x0000000002BD0000-0x0000000002BE1000-memory.dmp

Filesize
68KB

Download
memory/284-235-0x0000000002BD0000-0x0000000002BE1000-memory.dmp

Filesize
68KB

Download
memory/284-236-0x0000000002FE0000-0x0000000002FF1000-memory.dmp

Filesize
68KB

Download
memory/284-237-0x0000000002BD0000-0x0000000002BE1000-memory.dmp

Filesize
68KB

Download
memory/284-403-0x0000000003330000-0x0000000003341000-memory.dmp

Filesize
68KB

Download
memory/284-69-0x0000000002FE0000-0x0000000002FF1000-memory.dmp

Filesize
68KB

Download
memory/284-405-0x0000000003330000-0x0000000003341000-memory.dmp

Filesize
68KB

Download
memory/284-68-0x0000000002BD0000-0x0000000002BE1000-memory.dmp

Filesize
68KB

Download
memory/284-404-0x0000000003740000-0x0000000003751000-memory.dmp

Filesize
68KB

Download
memory/1108-44-0x00000000025E0000-0x00000000025E4000-memory.dmp

Filesize
16KB

Download
memory/1268-36-0x0000000010000000-0x0000000010010000-memory.dmp

Filesize
64KB

Download