wannacry | ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa

Target

ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe
Sample

200130-4gk56rvts6
SHA256

ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa

Score

10^/10

ransomware discovery 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 WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 364 wrote to memory of 284	364	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	27
PID 364 wrote to memory of 676	364	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	29
PID 364 wrote to memory of 2024	364	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	31
PID 364 wrote to memory of 284	364	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	32
PID 284 wrote to memory of 272	284	cmd.exe	34
PID 364 wrote to memory of 1648	364	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	38
PID 364 wrote to memory of 1956	364	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	39
PID 1956 wrote to memory of 1168	1956	cmd.exe	41
PID 1648 wrote to memory of 1964	1648	@[email protected]	43
PID 1168 wrote to memory of 1276	1168	@[email protected]	45
PID 1276 wrote to memory of 1392	1276	cmd.exe	47
PID 364 wrote to memory of 1404	364	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	49
PID 364 wrote to memory of 1940	364	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	50
PID 364 wrote to memory of 1980	364	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	51
PID 364 wrote to memory of 1324	364	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	52
PID 1324 wrote to memory of 1404	1324	cmd.exe	54
PID 1276 wrote to memory of 532	1276	cmd.exe	55
PID 364 wrote to memory of 1168	364	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	57
PID 364 wrote to memory of 1080	364	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	58
PID 364 wrote to memory of 1276	364	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	59
PID 364 wrote to memory of 1520	364	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	61
PID 364 wrote to memory of 552	364	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	62
PID 364 wrote to memory of 1064	364	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	63
PID 364 wrote to memory of 1692	364	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	66
PID 364 wrote to memory of 1400	364	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	67
PID 364 wrote to memory of 1864	364	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe	68

Modifies file permissions 1 TTPs 2 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
676	icacls.exe
676	icacls.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1980	@[email protected]

Sets desktop wallpaper using registry 2 TTPs 2 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1774239815-1814403401-2200974991-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\Desktop\\@[email protected]"	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1774239815-1814403401-2200974991-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\Desktop\\@[email protected]"	@[email protected]

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1158

pid	Process
284	attrib.exe

Modifies service 2 TTPs 4 IoCs

persistence

Modify Registry

T1112

Modify Existing Service

T1031

description	ioc	Process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VSS\Diag\Registry Writer	vssvc.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VSS\Diag\COM+ REGDB Writer	vssvc.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VSS\Diag\ASR Writer	vssvc.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VSS\Diag\Shadow Copy Optimization Writer	vssvc.exe

Loads dropped DLL 5 IoCs

pid	Process
364	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe
272	cscript.exe
1956	cmd.exe
1648	@[email protected]
1964	taskhsvc.exe

Executes dropped EXE 16 IoCs

pid	Process
2024	taskdl.exe
1648	@[email protected]
1168	@[email protected]
1964	taskhsvc.exe
1404	taskdl.exe
1940	taskse.exe
1980	@[email protected]
1168	taskdl.exe
1080	taskse.exe
1276	@[email protected]
1520	taskdl.exe
552	taskse.exe
1064	@[email protected]
1692	taskdl.exe
1400	taskse.exe
1864	@[email protected]

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1964	taskhsvc.exe

Suspicious use of AdjustPrivilegeToken 27 IoCs

description	pid	Process
Token: SeBackupPrivilege	1988	vssvc.exe
Token: SeRestorePrivilege	1988	vssvc.exe
Token: SeAuditPrivilege	1988	vssvc.exe
Token: SeTcbPrivilege	1940	taskse.exe
Token: SeIncreaseQuotaPrivilege	532	WMIC.exe
Token: SeSecurityPrivilege	532	WMIC.exe
Token: SeTakeOwnershipPrivilege	532	WMIC.exe
Token: SeLoadDriverPrivilege	532	WMIC.exe
Token: SeSystemProfilePrivilege	532	WMIC.exe
Token: SeSystemtimePrivilege	532	WMIC.exe
Token: SeProfSingleProcessPrivilege	532	WMIC.exe
Token: SeIncBasePriorityPrivilege	532	WMIC.exe
Token: SeCreatePagefilePrivilege	532	WMIC.exe
Token: SeBackupPrivilege	532	WMIC.exe
Token: SeRestorePrivilege	532	WMIC.exe
Token: SeShutdownPrivilege	532	WMIC.exe
Token: SeDebugPrivilege	532	WMIC.exe
Token: SeSystemEnvironmentPrivilege	532	WMIC.exe
Token: SeRemoteShutdownPrivilege	532	WMIC.exe
Token: SeUndockPrivilege	532	WMIC.exe
Token: SeManageVolumePrivilege	532	WMIC.exe
Token: 33	532	WMIC.exe
Token: 34	532	WMIC.exe
Token: 35	532	WMIC.exe
Token: SeTcbPrivilege	1080	taskse.exe
Token: SeTcbPrivilege	552	taskse.exe
Token: SeTcbPrivilege	1400	taskse.exe

Adds Run entry to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	reg.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\ftqqepmlkbmm513 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\tasksche.exe\""	reg.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
1648	@[email protected]
1168	@[email protected]
1980	@[email protected]
1276	@[email protected]
1064	@[email protected]
1864	@[email protected]

Deletes shadow copies 2 TTPs 2 IoCs

ransomware

File Deletion

T1107

Inhibit System Recovery

T1490

pid	Process
1392	vssadmin.exe
532	WMIC.exe

Drops startup file 6 IoCs

description	ioc	Process
File deleted	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\~SD74DE.tmp	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe
File created (read-only)	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\~SD7511.tmp	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\~SD7511.tmp	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe
File deleted	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\~SD7511.tmp	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe
File created (read-only)	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\~SD74DE.tmp	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\~SD74DE.tmp	ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

pid	Process
1404	reg.exe

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry

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
- Loads dropped DLL
- Drops startup file
PID:364
- C:\Windows\SysWOW64\attrib.exe
  attrib +h .
  2⤵
  - Views/modifies file attributes
  PID:284
- C:\Windows\SysWOW64\icacls.exe
  icacls . /grant Everyone:F /T /C /Q
  2⤵
  - Modifies file permissions
  PID:676
- C:\Users\Admin\AppData\Local\Temp\taskdl.exe
  taskdl.exe
  2⤵
  - Executes dropped EXE
  PID:2024
- C:\Windows\SysWOW64\cmd.exe
  cmd /c 146851580394802.bat
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:284
- - C:\Windows\SysWOW64\cscript.exe
    cscript.exe //nologo m.vbs
    3⤵
    - Loads dropped DLL
    PID:272
- 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:1648
- - 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:1964
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c start /b @[email protected] vs
  2⤵
  - Suspicious use of WriteProcessMemory
  - Loads dropped DLL
  PID:1956
- - C:\Users\Admin\AppData\Local\Temp\@[email protected]
    @[email protected] vs
    3⤵
    - Suspicious use of WriteProcessMemory
    - Executes dropped EXE
    - Suspicious use of SetWindowsHookEx
    PID:1168
  - - 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:1276
    - - C:\Windows\SysWOW64\vssadmin.exe
        
        vssadmin delete shadows /all /quiet
        5⤵
        Deletes shadow copies
        
        PID:1392
    - - C:\Windows\SysWOW64\Wbem\WMIC.exe
        
        wmic shadowcopy delete
        5⤵
        Suspicious use of AdjustPrivilegeToken
        Deletes shadow copies
        
        PID:532
- C:\Users\Admin\AppData\Local\Temp\taskdl.exe
  taskdl.exe
  2⤵
  - Executes dropped EXE
  PID:1404
- 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:1940
- C:\Users\Admin\AppData\Local\Temp\@[email protected]
  @[email protected]
  2⤵
  - Suspicious behavior: GetForegroundWindowSpam
  - Sets desktop wallpaper using registry
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:1980
- 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:1324
- - 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⤵
    - Adds Run entry to start application
    - Modifies registry key
    PID:1404
- C:\Users\Admin\AppData\Local\Temp\taskdl.exe
  taskdl.exe
  2⤵
  - Executes dropped EXE
  PID:1168
- 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:1080
- C:\Users\Admin\AppData\Local\Temp\@[email protected]
  @[email protected]
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:1276
- C:\Users\Admin\AppData\Local\Temp\taskdl.exe
  taskdl.exe
  2⤵
  - Executes dropped EXE
  PID:1520
- 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:552
- C:\Users\Admin\AppData\Local\Temp\@[email protected]
  @[email protected]
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:1064
- C:\Users\Admin\AppData\Local\Temp\taskdl.exe
  taskdl.exe
  2⤵
  - Executes dropped EXE
  PID:1692
- 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:1400
- C:\Users\Admin\AppData\Local\Temp\@[email protected]
  @[email protected]
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:1864

C:\Windows\explorer.exe
"C:\Windows\explorer.exe"
1⤵
PID:2024

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Modifies service
- Suspicious use of AdjustPrivilegeToken
PID:1988

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Hidden Files and Directories

T1158

Modify Existing Service

T1031

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/272-44-0x0000000002680000-0x0000000002684000-memory.dmp

Filesize
16KB

Download
memory/364-2-0x0000000010000000-0x0000000010010000-memory.dmp

Filesize
64KB

Download
memory/1964-237-0x0000000002C60000-0x0000000002C71000-memory.dmp

Filesize
68KB

Download
memory/1964-69-0x0000000003070000-0x0000000003081000-memory.dmp

Filesize
68KB

Download
memory/1964-70-0x0000000002C60000-0x0000000002C71000-memory.dmp

Filesize
68KB

Download
memory/1964-235-0x0000000002C60000-0x0000000002C71000-memory.dmp

Filesize
68KB

Download
memory/1964-236-0x0000000003070000-0x0000000003081000-memory.dmp

Filesize
68KB

Download
memory/1964-68-0x0000000002C60000-0x0000000002C71000-memory.dmp

Filesize
68KB

Download
memory/1964-404-0x00000000032F0000-0x0000000003301000-memory.dmp

Filesize
68KB

Download
memory/1964-402-0x00000000032F0000-0x0000000003301000-memory.dmp

Filesize
68KB

Download
memory/1964-403-0x0000000003700000-0x0000000003711000-memory.dmp

Filesize
68KB

Download