wannacry | ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa

Resubmissions

31-12-2019 13:17

191231-af79t7zt9a 10

Analysis

max time kernel
143s
resource
win7v191014
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: 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 behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
836	@[email protected]

Deletes shadow copies 2 TTPs 2 IoCs

ransomware

File Deletion

T1107

Inhibit System Recovery

T1490

pid	Process
1920	WMIC.exe
1852	vssadmin.exe

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1158

pid	Process
1100	attrib.exe

Modifies file permissions 1 TTPs 1 IoCs

File and Directory Permissions Modification

T1222

pid	Process
1296	icacls.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
1604	@[email protected]
1552	@[email protected]
836	@[email protected]
976	@[email protected]
1616	@[email protected]
1112	@[email protected]

Executes dropped EXE 16 IoCs

pid	Process
2040	taskdl.exe
1604	@[email protected]
1552	@[email protected]
1992	taskhsvc.exe
2044	taskdl.exe
1116	taskse.exe
836	@[email protected]
1852	taskdl.exe
1892	taskse.exe
976	@[email protected]
784	taskdl.exe
1756	taskse.exe
1616	@[email protected]
760	taskdl.exe
1124	taskse.exe
1112	@[email protected]

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1992	taskhsvc.exe

Loads dropped DLL 5 IoCs

pid	Process
596	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe
1408	cscript.exe
1852	cmd.exe
1604	@[email protected]
1992	taskhsvc.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]"

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\""

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 596 wrote to memory of 1100	596	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	27
PID 596 wrote to memory of 1296	596	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	29
PID 596 wrote to memory of 2040	596	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	31
PID 596 wrote to memory of 1988	596	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	32
PID 1988 wrote to memory of 1408	1988	cmd.exe	34
PID 596 wrote to memory of 1604	596	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	36
PID 596 wrote to memory of 1852	596	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	37
PID 1852 wrote to memory of 1552	1852	cmd.exe	39
PID 1604 wrote to memory of 1992	1604	@[email protected]	41
PID 596 wrote to memory of 2044	596	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	43
PID 596 wrote to memory of 1116	596	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	44
PID 596 wrote to memory of 836	596	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	45
PID 596 wrote to memory of 1444	596	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	46
PID 1552 wrote to memory of 108	1552	@[email protected]	48
PID 1444 wrote to memory of 1716	1444	cmd.exe	50
PID 108 wrote to memory of 1852	108	cmd.exe	51
PID 108 wrote to memory of 1920	108	cmd.exe	53
PID 596 wrote to memory of 1852	596	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	55
PID 596 wrote to memory of 1892	596	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	57
PID 596 wrote to memory of 976	596	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	58
PID 596 wrote to memory of 784	596	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	59
PID 596 wrote to memory of 1756	596	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	60
PID 596 wrote to memory of 1616	596	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	61
PID 596 wrote to memory of 760	596	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	64
PID 596 wrote to memory of 1124	596	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	65
PID 596 wrote to memory of 1112	596	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	66

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

pid	Process
1716	reg.exe

Drops startup file 6 IoCs

description	ioc	Process
File deleted	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\~SD6D40.tmp	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe
File created (read-only)	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\~SD6D73.tmp	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\~SD6D73.tmp	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe
File deleted	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\~SD6D73.tmp	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe
File created (read-only)	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\~SD6D40.tmp	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\~SD6D40.tmp	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe

Suspicious use of AdjustPrivilegeToken 27 IoCs

description	pid	Process
Token: SeTcbPrivilege	1116	taskse.exe
Token: SeBackupPrivilege	1596	vssvc.exe
Token: SeRestorePrivilege	1596	vssvc.exe
Token: SeAuditPrivilege	1596	vssvc.exe
Token: SeIncreaseQuotaPrivilege	1920	WMIC.exe
Token: SeSecurityPrivilege	1920	WMIC.exe
Token: SeTakeOwnershipPrivilege	1920	WMIC.exe
Token: SeLoadDriverPrivilege	1920	WMIC.exe
Token: SeSystemProfilePrivilege	1920	WMIC.exe
Token: SeSystemtimePrivilege	1920	WMIC.exe
Token: SeProfSingleProcessPrivilege	1920	WMIC.exe
Token: SeIncBasePriorityPrivilege	1920	WMIC.exe
Token: SeCreatePagefilePrivilege	1920	WMIC.exe
Token: SeBackupPrivilege	1920	WMIC.exe
Token: SeRestorePrivilege	1920	WMIC.exe
Token: SeShutdownPrivilege	1920	WMIC.exe
Token: SeDebugPrivilege	1920	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1920	WMIC.exe
Token: SeRemoteShutdownPrivilege	1920	WMIC.exe
Token: SeUndockPrivilege	1920	WMIC.exe
Token: SeManageVolumePrivilege	1920	WMIC.exe
Token: 33	1920	WMIC.exe
Token: 34	1920	WMIC.exe
Token: 35	1920	WMIC.exe
Token: SeTcbPrivilege	1892	taskse.exe
Token: SeTcbPrivilege	1756	taskse.exe
Token: SeTcbPrivilege	1124	taskse.exe

C:\Users\Admin\AppData\Local\Temp\ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe
"C:\Users\Admin\AppData\Local\Temp\ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
- Drops startup file
PID:596
- C:\Windows\SysWOW64\attrib.exe
  attrib +h .
  2⤵
  - Views/modifies file attributes
  PID:1100
- C:\Windows\SysWOW64\icacls.exe
  icacls . /grant Everyone:F /T /C /Q
  2⤵
  - Modifies file permissions
  PID:1296
- C:\Users\Admin\AppData\Local\Temp\taskdl.exe
  taskdl.exe
  2⤵
  - Executes dropped EXE
  PID:2040
- C:\Windows\SysWOW64\cmd.exe
  cmd /c 106101577803695.bat
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1988
- - C:\Windows\SysWOW64\cscript.exe
    cscript.exe //nologo m.vbs
    3⤵
    - Loads dropped DLL
    PID:1408
- C:\Users\Admin\AppData\Local\Temp\@[email protected]
  @[email protected] co
  2⤵
  - Suspicious use of SetWindowsHookEx
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:1604
- - 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:1992
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c start /b @[email protected] vs
  2⤵
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:1852
- - C:\Users\Admin\AppData\Local\Temp\@[email protected]
    @[email protected] vs
    3⤵
    - Suspicious use of SetWindowsHookEx
    - Executes dropped EXE
    - Suspicious use of WriteProcessMemory
    PID:1552
  - - 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:108
    - - C:\Windows\SysWOW64\vssadmin.exe
        
        vssadmin delete shadows /all /quiet
        5⤵
        Deletes shadow copies
        
        PID:1852
    - - C:\Windows\SysWOW64\Wbem\WMIC.exe
        
        wmic shadowcopy delete
        5⤵
        Deletes shadow copies
        Suspicious use of AdjustPrivilegeToken
        
        PID:1920
- C:\Users\Admin\AppData\Local\Temp\taskdl.exe
  taskdl.exe
  2⤵
  - Executes dropped EXE
  PID:2044
- 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:1116
- C:\Users\Admin\AppData\Local\Temp\@[email protected]
  @[email protected]
  2⤵
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of SetWindowsHookEx
  - Executes dropped EXE
  PID:836
- 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:1444
- - 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:1716
- C:\Users\Admin\AppData\Local\Temp\taskdl.exe
  taskdl.exe
  2⤵
  - Executes dropped EXE
  PID:1852
- 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:1892
- C:\Users\Admin\AppData\Local\Temp\@[email protected]
  @[email protected]
  2⤵
  - Suspicious use of SetWindowsHookEx
  - Executes dropped EXE
  PID:976
- 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:1756
- C:\Users\Admin\AppData\Local\Temp\@[email protected]
  @[email protected]
  2⤵
  - Suspicious use of SetWindowsHookEx
  - Executes dropped EXE
  PID:1616
- C:\Users\Admin\AppData\Local\Temp\taskdl.exe
  taskdl.exe
  2⤵
  - Executes dropped EXE
  PID:760
- 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:1124
- C:\Users\Admin\AppData\Local\Temp\@[email protected]
  @[email protected]
  2⤵
  - Suspicious use of SetWindowsHookEx
  - Executes dropped EXE
  PID:1112

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1596

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/596-2-0x0000000010000000-0x0000000010010000-memory.dmp

Filesize
64KB

Download
memory/836-707-0x00000000023E0000-0x00000000023E1000-memory.dmp

Filesize
4KB

Download
memory/1408-44-0x0000000002770000-0x0000000002774000-memory.dmp

Filesize
16KB

Download
memory/1992-237-0x0000000002A60000-0x0000000002A71000-memory.dmp

Filesize
68KB

Download
memory/1992-404-0x0000000003250000-0x0000000003261000-memory.dmp

Filesize
68KB

Download
memory/1992-403-0x0000000003660000-0x0000000003671000-memory.dmp

Filesize
68KB

Download
memory/1992-402-0x0000000003250000-0x0000000003261000-memory.dmp

Filesize
68KB

Download
memory/1992-68-0x0000000002A60000-0x0000000002A71000-memory.dmp

Filesize
68KB

Download
memory/1992-69-0x0000000002E70000-0x0000000002E81000-memory.dmp

Filesize
68KB

Download
memory/1992-70-0x0000000002A60000-0x0000000002A71000-memory.dmp

Filesize
68KB

Download
memory/1992-235-0x0000000002A60000-0x0000000002A71000-memory.dmp

Filesize
68KB

Download
memory/1992-236-0x0000000002E70000-0x0000000002E81000-memory.dmp

Filesize
68KB

Download