wannacry | 283f40e9d550833bec101a24fd6fd6fbd9937ed32a51392e818ffff662a1d30a

Resubmissions

13/02/2022, 15:34

220213-sz5ftsbch7 10

13/02/2022, 15:31

220213-syb3wsbcg4 10

13/02/2022, 15:17

220213-sn7rtadbaq 10

Analysis

max time kernel
149s
max time network
156s
platform
windows11_x64
resource
win11
submitted
13/02/2022, 15:31

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

[email protected]
Size

3.4MB
MD5

84c82835a5d21bbcf75a61706d8ab549
SHA1

5ff465afaabcbf0150d1a3ab2c2e74f3a4426467
SHA256

ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa
SHA512

90723a50c20ba3643d625595fd6be8dcf88d70ff7f4b4719a88f055d5b3149a4231018ea30d375171507a147e59f73478c0c27948590794554d031e7d54b7244

Score

10^/10

wannacry discovery persistence ransomware worm

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: 13AM4VW2dhxYgXeQepoHkHSQuy6NgaEb94 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

13AM4VW2dhxYgXeQepoHkHSQuy6NgaEb94

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
ransomware

File Deletion
T1107

Inhibit System Recovery
T1490

Executes dropped EXE 12 IoCs

pid	Process
3288	taskdl.exe
4540	taskdl.exe
5020	taskdl.exe
1484	@[email protected]
2264	@[email protected]
1388	taskse.exe
2272	@[email protected]
3252	taskdl.exe
1612	taskhsvc.exe
4532	taskdl.exe
3244	taskse.exe
3916	@[email protected]

Drops startup file 2 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\~SDBBEE.tmp	[email protected]
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\~SDBBF5.tmp	[email protected]

Loads dropped DLL 8 IoCs

pid	Process
1612	taskhsvc.exe
1612	taskhsvc.exe
1612	taskhsvc.exe
1612	taskhsvc.exe
1612	taskhsvc.exe
1612	taskhsvc.exe
1612	taskhsvc.exe
1612	taskhsvc.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
4696	icacls.exe

Adds Run key 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\kovazmlfyf099 = "\"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-1-5-21-257790753-2419383948-818201544-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\Desktop\\@[email protected]"	@[email protected]
Set value (str)	\REGISTRY\USER\S-1-5-21-257790753-2419383948-818201544-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\Desktop\\@[email protected]"	[email protected]

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

pid	Process
4612	reg.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
1612	taskhsvc.exe
1612	taskhsvc.exe
1612	taskhsvc.exe
1612	taskhsvc.exe
1612	taskhsvc.exe
1612	taskhsvc.exe

Suspicious use of AdjustPrivilegeToken 49 IoCs

description	pid	Process
Token: SeTcbPrivilege	1388	taskse.exe
Token: SeTcbPrivilege	1388	taskse.exe
Token: SeIncreaseQuotaPrivilege	2328	WMIC.exe
Token: SeSecurityPrivilege	2328	WMIC.exe
Token: SeTakeOwnershipPrivilege	2328	WMIC.exe
Token: SeLoadDriverPrivilege	2328	WMIC.exe
Token: SeSystemProfilePrivilege	2328	WMIC.exe
Token: SeSystemtimePrivilege	2328	WMIC.exe
Token: SeProfSingleProcessPrivilege	2328	WMIC.exe
Token: SeIncBasePriorityPrivilege	2328	WMIC.exe
Token: SeCreatePagefilePrivilege	2328	WMIC.exe
Token: SeBackupPrivilege	2328	WMIC.exe
Token: SeRestorePrivilege	2328	WMIC.exe
Token: SeShutdownPrivilege	2328	WMIC.exe
Token: SeDebugPrivilege	2328	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2328	WMIC.exe
Token: SeRemoteShutdownPrivilege	2328	WMIC.exe
Token: SeUndockPrivilege	2328	WMIC.exe
Token: SeManageVolumePrivilege	2328	WMIC.exe
Token: 33	2328	WMIC.exe
Token: 34	2328	WMIC.exe
Token: 35	2328	WMIC.exe
Token: 36	2328	WMIC.exe
Token: SeIncreaseQuotaPrivilege	2328	WMIC.exe
Token: SeSecurityPrivilege	2328	WMIC.exe
Token: SeTakeOwnershipPrivilege	2328	WMIC.exe
Token: SeLoadDriverPrivilege	2328	WMIC.exe
Token: SeSystemProfilePrivilege	2328	WMIC.exe
Token: SeSystemtimePrivilege	2328	WMIC.exe
Token: SeProfSingleProcessPrivilege	2328	WMIC.exe
Token: SeIncBasePriorityPrivilege	2328	WMIC.exe
Token: SeCreatePagefilePrivilege	2328	WMIC.exe
Token: SeBackupPrivilege	2328	WMIC.exe
Token: SeRestorePrivilege	2328	WMIC.exe
Token: SeShutdownPrivilege	2328	WMIC.exe
Token: SeDebugPrivilege	2328	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2328	WMIC.exe
Token: SeRemoteShutdownPrivilege	2328	WMIC.exe
Token: SeUndockPrivilege	2328	WMIC.exe
Token: SeManageVolumePrivilege	2328	WMIC.exe
Token: 33	2328	WMIC.exe
Token: 34	2328	WMIC.exe
Token: 35	2328	WMIC.exe
Token: 36	2328	WMIC.exe
Token: SeBackupPrivilege	3120	vssvc.exe
Token: SeRestorePrivilege	3120	vssvc.exe
Token: SeAuditPrivilege	3120	vssvc.exe
Token: SeTcbPrivilege	3244	taskse.exe
Token: SeTcbPrivilege	3244	taskse.exe

Suspicious use of SetWindowsHookEx 7 IoCs

pid	Process
2264	@[email protected]
1484	@[email protected]
1484	@[email protected]
2264	@[email protected]
2272	@[email protected]
2272	@[email protected]
3916	@[email protected]

Suspicious use of WriteProcessMemory 63 IoCs

description	pid	Process	procid_target
PID 1136 wrote to memory of 5020	1136	[email protected]	87
PID 1136 wrote to memory of 5020	1136	[email protected]	87
PID 1136 wrote to memory of 5020	1136	[email protected]	87
PID 1136 wrote to memory of 4696	1136	[email protected]	88
PID 1136 wrote to memory of 4696	1136	[email protected]	88
PID 1136 wrote to memory of 4696	1136	[email protected]	88
PID 1136 wrote to memory of 3288	1136	[email protected]	91
PID 1136 wrote to memory of 3288	1136	[email protected]	91
PID 1136 wrote to memory of 3288	1136	[email protected]	91
PID 1136 wrote to memory of 1108	1136	[email protected]	92
PID 1136 wrote to memory of 1108	1136	[email protected]	92
PID 1136 wrote to memory of 1108	1136	[email protected]	92
PID 1108 wrote to memory of 1968	1108	cmd.exe	94
PID 1108 wrote to memory of 1968	1108	cmd.exe	94
PID 1108 wrote to memory of 1968	1108	cmd.exe	94
PID 1136 wrote to memory of 4540	1136	[email protected]	95
PID 1136 wrote to memory of 4540	1136	[email protected]	95
PID 1136 wrote to memory of 4540	1136	[email protected]	95
PID 1136 wrote to memory of 5020	1136	[email protected]	108
PID 1136 wrote to memory of 5020	1136	[email protected]	108
PID 1136 wrote to memory of 5020	1136	[email protected]	108
PID 1136 wrote to memory of 1484	1136	[email protected]	110
PID 1136 wrote to memory of 1484	1136	[email protected]	110
PID 1136 wrote to memory of 1484	1136	[email protected]	110
PID 1136 wrote to memory of 800	1136	[email protected]	111
PID 1136 wrote to memory of 800	1136	[email protected]	111
PID 1136 wrote to memory of 800	1136	[email protected]	111
PID 800 wrote to memory of 2264	800	cmd.exe	113
PID 800 wrote to memory of 2264	800	cmd.exe	113
PID 800 wrote to memory of 2264	800	cmd.exe	113
PID 1136 wrote to memory of 1388	1136	[email protected]	114
PID 1136 wrote to memory of 1388	1136	[email protected]	114
PID 1136 wrote to memory of 1388	1136	[email protected]	114
PID 1136 wrote to memory of 2272	1136	[email protected]	116
PID 1136 wrote to memory of 2272	1136	[email protected]	116
PID 1136 wrote to memory of 2272	1136	[email protected]	116
PID 1136 wrote to memory of 948	1136	[email protected]	115
PID 1136 wrote to memory of 948	1136	[email protected]	115
PID 1136 wrote to memory of 948	1136	[email protected]	115
PID 1136 wrote to memory of 3252	1136	[email protected]	118
PID 1136 wrote to memory of 3252	1136	[email protected]	118
PID 1136 wrote to memory of 3252	1136	[email protected]	118
PID 948 wrote to memory of 4612	948	cmd.exe	121
PID 948 wrote to memory of 4612	948	cmd.exe	121
PID 948 wrote to memory of 4612	948	cmd.exe	121
PID 1484 wrote to memory of 1612	1484	@[email protected]	122
PID 1484 wrote to memory of 1612	1484	@[email protected]	122
PID 1484 wrote to memory of 1612	1484	@[email protected]	122
PID 2264 wrote to memory of 432	2264	@[email protected]	124
PID 2264 wrote to memory of 432	2264	@[email protected]	124
PID 2264 wrote to memory of 432	2264	@[email protected]	124
PID 432 wrote to memory of 2328	432	cmd.exe	126
PID 432 wrote to memory of 2328	432	cmd.exe	126
PID 432 wrote to memory of 2328	432	cmd.exe	126
PID 1136 wrote to memory of 4532	1136	[email protected]	129
PID 1136 wrote to memory of 4532	1136	[email protected]	129
PID 1136 wrote to memory of 4532	1136	[email protected]	129
PID 1136 wrote to memory of 3244	1136	[email protected]	130
PID 1136 wrote to memory of 3244	1136	[email protected]	130
PID 1136 wrote to memory of 3244	1136	[email protected]	130
PID 1136 wrote to memory of 3916	1136	[email protected]	131
PID 1136 wrote to memory of 3916	1136	[email protected]	131
PID 1136 wrote to memory of 3916	1136	[email protected]	131

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1158

pid	Process
5020	attrib.exe

C:\Users\Admin\AppData\Local\Temp\[email protected]
"C:\Users\Admin\AppData\Local\Temp\[email protected]"
1⤵
- Drops startup file
- Sets desktop wallpaper using registry
- Suspicious use of WriteProcessMemory
PID:1136
- C:\Windows\SysWOW64\attrib.exe
  attrib +h .
  2⤵
  - Views/modifies file attributes
  PID:5020
- C:\Windows\SysWOW64\icacls.exe
  icacls . /grant Everyone:F /T /C /Q
  2⤵
  - Modifies file permissions
  PID:4696
- C:\Users\Admin\AppData\Local\Temp\taskdl.exe
  taskdl.exe
  2⤵
  - Executes dropped EXE
  PID:3288
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c 75271644766319.bat
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1108
- - C:\Windows\SysWOW64\cscript.exe
    cscript.exe //nologo m.vbs
    3⤵
    PID:1968
- C:\Users\Admin\AppData\Local\Temp\taskdl.exe
  taskdl.exe
  2⤵
  - Executes dropped EXE
  PID:4540
- C:\Users\Admin\AppData\Local\Temp\taskdl.exe
  taskdl.exe
  2⤵
  - Executes dropped EXE
  PID:5020
- C:\Users\Admin\AppData\Local\Temp\@[email protected]
  @[email protected] co
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1484
- - C:\Users\Admin\AppData\Local\Temp\TaskData\Tor\taskhsvc.exe
    TaskData\Tor\taskhsvc.exe
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious behavior: EnumeratesProcesses
    PID:1612
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c start /b @[email protected] vs
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:800
- - C:\Users\Admin\AppData\Local\Temp\@[email protected]
    @[email protected] vs
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2264
  - - 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:432
    - - C:\Windows\SysWOW64\Wbem\WMIC.exe
        
        wmic shadowcopy delete
        5⤵
        Suspicious use of AdjustPrivilegeToken
        
        PID:2328
- 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:1388
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c reg add HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /v "kovazmlfyf099" /t REG_SZ /d "\"C:\Users\Admin\AppData\Local\Temp\tasksche.exe\"" /f
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:948
- - C:\Windows\SysWOW64\reg.exe
    reg add HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /v "kovazmlfyf099" /t REG_SZ /d "\"C:\Users\Admin\AppData\Local\Temp\tasksche.exe\"" /f
    3⤵
    - Adds Run key to start application
    - Modifies registry key
    PID:4612
- C:\Users\Admin\AppData\Local\Temp\@[email protected]
  @[email protected]
  2⤵
  - Executes dropped EXE
  - Sets desktop wallpaper using registry
  - Suspicious use of SetWindowsHookEx
  PID:2272
- C:\Users\Admin\AppData\Local\Temp\taskdl.exe
  taskdl.exe
  2⤵
  - Executes dropped EXE
  PID:3252
- C:\Users\Admin\AppData\Local\Temp\taskdl.exe
  taskdl.exe
  2⤵
  - Executes dropped EXE
  PID:4532
- 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:3244
- C:\Users\Admin\AppData\Local\Temp\@[email protected]
  @[email protected]
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:3916

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3120

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

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Defacement

T1491

Inhibit System Recovery

T1490

Replay Monitor

Loading Replay Monitor...

Downloads

memory/1136-147-0x0000000010000000-0x0000000010010000-memory.dmp

Filesize
64KB

Download
memory/1612-214-0x0000000073560000-0x00000000735E2000-memory.dmp

Filesize
520KB

Download
memory/1612-215-0x00000000732C0000-0x00000000734DC000-memory.dmp

Filesize
2.1MB

Download
memory/1612-216-0x00000000735F0000-0x0000000073672000-memory.dmp

Filesize
520KB

Download
memory/1612-217-0x0000000073850000-0x0000000073872000-memory.dmp

Filesize
136KB

Download
memory/1612-219-0x0000000073561000-0x00000000735A5000-memory.dmp

Filesize
272KB

Download
memory/1612-220-0x00000000732C1000-0x0000000073436000-memory.dmp

Filesize
1.5MB

Download
memory/1612-218-0x0000000000DC0000-0x00000000010BE000-memory.dmp

Filesize
3.0MB

Download
memory/1612-221-0x00000000735F1000-0x0000000073641000-memory.dmp

Filesize
320KB

Download
memory/1612-222-0x0000000073851000-0x0000000073864000-memory.dmp

Filesize
76KB

Download
memory/1612-223-0x0000000000DC1000-0x0000000000FFE000-memory.dmp

Filesize
2.2MB

Download