wannacry | 92bc02116a72b13d359ba88e0984ea09d2eb230fbf711d92a0c961e08274a09e

Resubmissions

25/03/2024, 16:24

240325-twmx2sfe7x10

25/03/2024, 16:11

240325-tnb6ksce8610

Analysis

max time kernel
300s
max time network
301s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
25/03/2024, 16:24

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General

Target
ce223b231f2862124386c585e9b95ca1.dll
Size 5.0MB
Sample240325-twmx2sfe7x
SHA256 92bc02116a72b13d359ba88e0984ea09d2eb230fbf711d92a0c961e08274a09e
MD5 ce223b231f2862124386c585e9b95ca1
SHA1 61673e2be7e3479a818eb98339692bc7e4a5b79c
SHA512 dede42923cae7167fcff56ae1131e6cb5a9c8ef14d76d1be84211504685d628fa1abf658a7ec89d0bca976c35ef6eb58f93e4f59ffcc4c27468e3e44c0ac4faa
SSDEEP 12288:TQbLgmluyQhMbaIMu7L5NVErCA4z2g6rTcbckPU82900Ve7zw+K+DHeQYSUjEXF5:MbLguVQhfdmMSirYbcMNgef0QeQjG
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (7583) amount of remote hosts 1 TTPs
This may indicate a network scan to discover remotely running services.
discovery

Network Service Discovery
T1046

Executes dropped EXE 2 IoCs

pid	Process
2912	mssecsvr.exe
2716	mssecsvr.exe

Creates a large amount of network flows 1 TTPs
This may indicate a network scan to discover remotely running services.
discovery

Network Service Discovery
T1046

Drops file in System32 directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	mssecsvr.exe
File opened for modification	C:\Windows\system32\eventvwr.msc	mmc.exe
File opened for modification	C:\Windows\system32\eventvwr.msc	mmc.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\WINDOWS\mssecsvr.exe	rundll32.exe
File created	C:\WINDOWS\tasksche.exe	mssecsvr.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	mssecsvr.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	mssecsvr.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	mssecsvr.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B510C714-0045-48B5-B1EF-713DAE6A7B30}	mssecsvr.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B510C714-0045-48B5-B1EF-713DAE6A7B30}\WpadDecisionTime = d0e3d9ffd07eda01	mssecsvr.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B510C714-0045-48B5-B1EF-713DAE6A7B30}\WpadDecision = "0"	mssecsvr.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	mssecsvr.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	mssecsvr.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	mssecsvr.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\8e-25-47-96-8f-13	mssecsvr.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	mssecsvr.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	mssecsvr.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	mssecsvr.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	mssecsvr.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	mssecsvr.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00e9000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	mssecsvr.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B510C714-0045-48B5-B1EF-713DAE6A7B30}\WpadDecisionReason = "1"	mssecsvr.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B510C714-0045-48B5-B1EF-713DAE6A7B30}\8e-25-47-96-8f-13	mssecsvr.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	mssecsvr.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	mssecsvr.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B510C714-0045-48B5-B1EF-713DAE6A7B30}\WpadNetworkName = "Network 3"	mssecsvr.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\8e-25-47-96-8f-13\WpadDecisionReason = "1"	mssecsvr.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\8e-25-47-96-8f-13\WpadDecisionTime = d0e3d9ffd07eda01	mssecsvr.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\8e-25-47-96-8f-13\WpadDecision = "0"	mssecsvr.exe

Suspicious use of AdjustPrivilegeToken 46 IoCs

description	pid	Process
Token: SeSecurityPrivilege	2300	mmc.exe
Token: 33	2300	mmc.exe
Token: SeIncBasePriorityPrivilege	2300	mmc.exe
Token: 33	2300	mmc.exe
Token: SeIncBasePriorityPrivilege	2300	mmc.exe
Token: 33	2300	mmc.exe
Token: SeIncBasePriorityPrivilege	2300	mmc.exe
Token: 33	2300	mmc.exe
Token: SeIncBasePriorityPrivilege	2300	mmc.exe
Token: 33	2300	mmc.exe
Token: SeIncBasePriorityPrivilege	2300	mmc.exe
Token: 33	2300	mmc.exe
Token: SeIncBasePriorityPrivilege	2300	mmc.exe
Token: 33	2300	mmc.exe
Token: SeIncBasePriorityPrivilege	2300	mmc.exe
Token: 33	2300	mmc.exe
Token: SeIncBasePriorityPrivilege	2300	mmc.exe
Token: 33	2300	mmc.exe
Token: SeIncBasePriorityPrivilege	2300	mmc.exe
Token: 33	2300	mmc.exe
Token: SeIncBasePriorityPrivilege	2300	mmc.exe
Token: 33	2300	mmc.exe
Token: SeIncBasePriorityPrivilege	2300	mmc.exe
Token: SeSecurityPrivilege	2452	mmc.exe
Token: 33	2452	mmc.exe
Token: SeIncBasePriorityPrivilege	2452	mmc.exe
Token: 33	2452	mmc.exe
Token: SeIncBasePriorityPrivilege	2452	mmc.exe
Token: 33	2452	mmc.exe
Token: SeIncBasePriorityPrivilege	2452	mmc.exe
Token: 33	2452	mmc.exe
Token: SeIncBasePriorityPrivilege	2452	mmc.exe
Token: 33	2452	mmc.exe
Token: SeIncBasePriorityPrivilege	2452	mmc.exe
Token: 33	2452	mmc.exe
Token: SeIncBasePriorityPrivilege	2452	mmc.exe
Token: 33	2452	mmc.exe
Token: SeIncBasePriorityPrivilege	2452	mmc.exe
Token: 33	2452	mmc.exe
Token: SeIncBasePriorityPrivilege	2452	mmc.exe
Token: 33	2452	mmc.exe
Token: SeIncBasePriorityPrivilege	2452	mmc.exe
Token: 33	2452	mmc.exe
Token: SeIncBasePriorityPrivilege	2452	mmc.exe
Token: 33	2452	mmc.exe
Token: SeIncBasePriorityPrivilege	2452	mmc.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2300	mmc.exe
2300	mmc.exe
2452	mmc.exe
2452	mmc.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 2520 wrote to memory of 2764	2520	rundll32.exe	28
PID 2520 wrote to memory of 2764	2520	rundll32.exe	28
PID 2520 wrote to memory of 2764	2520	rundll32.exe	28
PID 2520 wrote to memory of 2764	2520	rundll32.exe	28
PID 2520 wrote to memory of 2764	2520	rundll32.exe	28
PID 2520 wrote to memory of 2764	2520	rundll32.exe	28
PID 2520 wrote to memory of 2764	2520	rundll32.exe	28
PID 2764 wrote to memory of 2912	2764	rundll32.exe	29
PID 2764 wrote to memory of 2912	2764	rundll32.exe	29
PID 2764 wrote to memory of 2912	2764	rundll32.exe	29
PID 2764 wrote to memory of 2912	2764	rundll32.exe	29
PID 2300 wrote to memory of 112	2300	mmc.exe	32
PID 2300 wrote to memory of 112	2300	mmc.exe	32
PID 2300 wrote to memory of 112	2300	mmc.exe	32
PID 2452 wrote to memory of 2684	2452	mmc.exe	34
PID 2452 wrote to memory of 2684	2452	mmc.exe	34
PID 2452 wrote to memory of 2684	2452	mmc.exe	34

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\ce223b231f2862124386c585e9b95ca1.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2520
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\ce223b231f2862124386c585e9b95ca1.dll,#1
  2⤵
  - Drops file in Windows directory
  - Suspicious use of WriteProcessMemory
  PID:2764
- - C:\WINDOWS\mssecsvr.exe
    C:\WINDOWS\mssecsvr.exe
    3⤵
    - Executes dropped EXE
    - Drops file in Windows directory
    PID:2912

C:\WINDOWS\mssecsvr.exe
C:\WINDOWS\mssecsvr.exe -m security
1⤵
- Executes dropped EXE
- Drops file in System32 directory
- Modifies data under HKEY_USERS
PID:2716

C:\Windows\system32\mmc.exe
"C:\Windows\system32\mmc.exe" "C:\Windows\system32\eventvwr.msc" /s
1⤵
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2300
- C:\Windows\Microsoft.NET\Framework64\v2.0.50727\dw20.exe
  dw20.exe -x -s 1188
  2⤵
  PID:112

C:\Windows\system32\mmc.exe
"C:\Windows\system32\mmc.exe" "C:\Windows\system32\eventvwr.msc" /s
1⤵
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2452
- C:\Windows\Microsoft.NET\Framework64\v2.0.50727\dw20.exe
  dw20.exe -x -s 1196
  2⤵
  PID:2684

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Network Service Discovery

T1046

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

mssecsvr.exe

Path C:\Windows\mssecsvr.exe
Size 2.2MB
SHA256 03dc66c9970481c5958d247f9eba93a6a7ad9f9bbf94845b9fbea8ed1e1e0757
MD5 60a91a498c0f1ffddef484c5a4d42564
SHA1 a15dcd408c0aee1f5f38b50528583bdee6536227
SHA512 e7b7a308227fc3c72d8d1bd262389257e1f2fa419f6ceff58f73a06f850245f6e1068ea74cf42388ee2ca2712d7b5d9a2ce0e6f7264c3885b82c1caa70891e55
SSDEEP 12288:eQbLgmluyQhMbaIMu7L5NVErCA4z2g6rTcbckPU82900Ve7zw+K+DHeQYSUjEXF5:VbLguVQhfdmMSirYbcMNgef0QeQjG
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/112-23-0x00000000023D0000-0x00000000023D1000-memory.dmp

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memory/2300-15-0x0000000004920000-0x00000000049A0000-memory.dmp

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memory/2300-21-0x000007FFFFF00000-0x000007FFFFF10000-memory.dmp

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memory/2300-11-0x0000000004920000-0x00000000049A0000-memory.dmp

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memory/2300-12-0x000007FEF4B20000-0x000007FEF54BD000-memory.dmp

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memory/2300-13-0x0000000004920000-0x00000000049A0000-memory.dmp

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memory/2300-14-0x000000001D6C0000-0x000000001DA06000-memory.dmp

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memory/2300-9-0x0000000002920000-0x000000000293E000-memory.dmp

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memory/2300-19-0x0000000004920000-0x00000000049A0000-memory.dmp

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memory/2300-20-0x0000000004920000-0x00000000049A0000-memory.dmp

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memory/2300-25-0x000007FEF4B20000-0x000007FEF54BD000-memory.dmp

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memory/2300-18-0x0000000004920000-0x00000000049A0000-memory.dmp

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memory/2300-17-0x0000000004920000-0x00000000049A0000-memory.dmp

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memory/2300-16-0x0000000004920000-0x00000000049A0000-memory.dmp

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memory/2300-22-0x0000000004920000-0x00000000049A0000-memory.dmp

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memory/2300-8-0x00000000021B0000-0x00000000021B1000-memory.dmp

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memory/2300-24-0x00000000021B0000-0x00000000021B1000-memory.dmp

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memory/2300-10-0x000007FEF4B20000-0x000007FEF54BD000-memory.dmp

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memory/2452-26-0x0000000002150000-0x0000000002151000-memory.dmp

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memory/2452-32-0x0000000004B80000-0x0000000004C00000-memory.dmp

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memory/2452-28-0x000007FEF4AE0000-0x000007FEF547D000-memory.dmp

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memory/2452-29-0x0000000004B80000-0x0000000004C00000-memory.dmp

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memory/2452-30-0x000007FEF4AE0000-0x000007FEF547D000-memory.dmp

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memory/2452-31-0x000000001D8F0000-0x000000001DC36000-memory.dmp

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memory/2452-33-0x0000000004B80000-0x0000000004C00000-memory.dmp

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memory/2452-27-0x0000000002700000-0x000000000271E000-memory.dmp

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memory/2452-38-0x0000000004B80000-0x0000000004C00000-memory.dmp

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memory/2452-37-0x0000000004B80000-0x0000000004C00000-memory.dmp

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memory/2452-36-0x0000000004B80000-0x0000000004C00000-memory.dmp

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memory/2452-35-0x0000000004B80000-0x0000000004C00000-memory.dmp

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memory/2452-34-0x0000000004B80000-0x0000000004C00000-memory.dmp

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memory/2452-39-0x0000000004B80000-0x0000000004C00000-memory.dmp

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memory/2452-41-0x000007FEF4AE0000-0x000007FEF547D000-memory.dmp

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memory/2684-40-0x0000000000460000-0x0000000000461000-memory.dmp

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Resubmissions

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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