wannacry | 993e135dfe4190ab6fea945f825d6be76f27e7ca837c9917b2e82ece68ff559f

General

Target

2024-10-12_3590d07d76bf5baab96229fb8d6d54aa_wannacry.exe
Size

3.6MB
MD5

3590d07d76bf5baab96229fb8d6d54aa
SHA1

1e4e94401b7b933c1a631c47662ada19910a6b2b
SHA256

993e135dfe4190ab6fea945f825d6be76f27e7ca837c9917b2e82ece68ff559f
SHA512

7abf2207a2f0aa40eaf529569865de86c9f31c586d4cbd009569cad513c7fdb2a0bc406d2afb5c7269e3d7c4305950c535f7c04c6084bec54b14375b4eff908e
SSDEEP

98304:yDqPoBhz1aRxcSUDk36SAEdhvxWa9P5NAVp2HI:yDqPe1Cxcxk3ZAEUadTc4HI

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3088) 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 1 IoCs

pid	Process
2464	tasksche.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 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	2024-10-12_3590d07d76bf5baab96229fb8d6d54aa_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-10-12_3590d07d76bf5baab96229fb8d6d54aa_wannacry.exe

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-12_3590d07d76bf5baab96229fb8d6d54aa_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-12_3590d07d76bf5baab96229fb8d6d54aa_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\be-10-4c-db-63-6c\WpadDecisionReason = "1"	2024-10-12_3590d07d76bf5baab96229fb8d6d54aa_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_3590d07d76bf5baab96229fb8d6d54aa_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-12_3590d07d76bf5baab96229fb8d6d54aa_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_3590d07d76bf5baab96229fb8d6d54aa_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-10-12_3590d07d76bf5baab96229fb8d6d54aa_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-10-12_3590d07d76bf5baab96229fb8d6d54aa_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-10-12_3590d07d76bf5baab96229fb8d6d54aa_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-10-12_3590d07d76bf5baab96229fb8d6d54aa_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-10-12_3590d07d76bf5baab96229fb8d6d54aa_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f007e000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_3590d07d76bf5baab96229fb8d6d54aa_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3466EA37-AE32-416D-A171-5C5EAEAA6400}\WpadNetworkName = "Network 3"	2024-10-12_3590d07d76bf5baab96229fb8d6d54aa_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\be-10-4c-db-63-6c\WpadDecisionTime = a0c2e7fb791cdb01	2024-10-12_3590d07d76bf5baab96229fb8d6d54aa_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-12_3590d07d76bf5baab96229fb8d6d54aa_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-10-12_3590d07d76bf5baab96229fb8d6d54aa_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-10-12_3590d07d76bf5baab96229fb8d6d54aa_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-10-12_3590d07d76bf5baab96229fb8d6d54aa_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3466EA37-AE32-416D-A171-5C5EAEAA6400}	2024-10-12_3590d07d76bf5baab96229fb8d6d54aa_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3466EA37-AE32-416D-A171-5C5EAEAA6400}\WpadDecisionReason = "1"	2024-10-12_3590d07d76bf5baab96229fb8d6d54aa_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3466EA37-AE32-416D-A171-5C5EAEAA6400}\be-10-4c-db-63-6c	2024-10-12_3590d07d76bf5baab96229fb8d6d54aa_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\be-10-4c-db-63-6c\WpadDecision = "0"	2024-10-12_3590d07d76bf5baab96229fb8d6d54aa_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-10-12_3590d07d76bf5baab96229fb8d6d54aa_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3466EA37-AE32-416D-A171-5C5EAEAA6400}\WpadDecisionTime = a0c2e7fb791cdb01	2024-10-12_3590d07d76bf5baab96229fb8d6d54aa_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3466EA37-AE32-416D-A171-5C5EAEAA6400}\WpadDecision = "0"	2024-10-12_3590d07d76bf5baab96229fb8d6d54aa_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\be-10-4c-db-63-6c	2024-10-12_3590d07d76bf5baab96229fb8d6d54aa_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-10-12_3590d07d76bf5baab96229fb8d6d54aa_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-12_3590d07d76bf5baab96229fb8d6d54aa_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1048
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2464

C:\Users\Admin\AppData\Local\Temp\2024-10-12_3590d07d76bf5baab96229fb8d6d54aa_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-10-12_3590d07d76bf5baab96229fb8d6d54aa_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2552

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Network Service Discovery

2

T1046

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\tasksche.exe

Filesize
3.4MB

MD5
fbfdc2d634a509fc1c68db65417d5b4f

SHA1
0f0fdd60427dc62c9bc879ed947590f6f77af842

SHA256
c0dc57c5fccd554fff136b40d3416c60563957179cf6fedec7f8c2f05e32a69a

SHA512
dcc3472c916a2c510cee69f4d53670b83f60e6d9148299a8b1980d72f3e118c843eab4e20535bbe802b34dd28cbd7cdef947b279917455d290217c81cb76edf8

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Analysis

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