wannacry | 2dddc51a550189707aac9f5acc60fd64d5154197195432a134c38de4d968a760

General

Target

2025-01-24_decdd87c07eb32e19ad2efbf487fbec0_wannacry.exe
Size

5.0MB
MD5

decdd87c07eb32e19ad2efbf487fbec0
SHA1

9db039ede4b3c62c8ecc9cd208d8d014ade44fe9
SHA256

2dddc51a550189707aac9f5acc60fd64d5154197195432a134c38de4d968a760
SHA512

80e062652467aaf07c6922b519c93a5b7541995b0567a65628bd0f831c1fe068ca946d3271eb17ad92bc70975a247ec3af76cf0c231e587f33367d24fa3b6ba9
SSDEEP

12288:GvbLgPlu+QhMbaIMu7L5NVErCA4z2g6rTcbckPU82900Ve7zw+K+DHe:2bLgddQhfdmMSirYbcMNgef0Qe

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Wannacry family
wannacry
Contacts a large (3225) 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
1284	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	2025-01-24_decdd87c07eb32e19ad2efbf487fbec0_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2025-01-24_decdd87c07eb32e19ad2efbf487fbec0_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	2025-01-24_decdd87c07eb32e19ad2efbf487fbec0_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-24_decdd87c07eb32e19ad2efbf487fbec0_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2025-01-24_decdd87c07eb32e19ad2efbf487fbec0_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{788A0A1D-7D7F-4D43-AE7F-1A1C41184F5A}	2025-01-24_decdd87c07eb32e19ad2efbf487fbec0_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2025-01-24_decdd87c07eb32e19ad2efbf487fbec0_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2025-01-24_decdd87c07eb32e19ad2efbf487fbec0_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2025-01-24_decdd87c07eb32e19ad2efbf487fbec0_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2025-01-24_decdd87c07eb32e19ad2efbf487fbec0_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2025-01-24_decdd87c07eb32e19ad2efbf487fbec0_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2025-01-24_decdd87c07eb32e19ad2efbf487fbec0_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{788A0A1D-7D7F-4D43-AE7F-1A1C41184F5A}\WpadDecisionTime = 508f6b76936edb01	2025-01-24_decdd87c07eb32e19ad2efbf487fbec0_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{788A0A1D-7D7F-4D43-AE7F-1A1C41184F5A}\WpadDecision = "0"	2025-01-24_decdd87c07eb32e19ad2efbf487fbec0_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2025-01-24_decdd87c07eb32e19ad2efbf487fbec0_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\de-0f-8c-df-8a-7f	2025-01-24_decdd87c07eb32e19ad2efbf487fbec0_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\de-0f-8c-df-8a-7f\WpadDecisionReason = "1"	2025-01-24_decdd87c07eb32e19ad2efbf487fbec0_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2025-01-24_decdd87c07eb32e19ad2efbf487fbec0_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00e5000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-24_decdd87c07eb32e19ad2efbf487fbec0_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{788A0A1D-7D7F-4D43-AE7F-1A1C41184F5A}\WpadDecisionReason = "1"	2025-01-24_decdd87c07eb32e19ad2efbf487fbec0_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{788A0A1D-7D7F-4D43-AE7F-1A1C41184F5A}\WpadNetworkName = "Network 3"	2025-01-24_decdd87c07eb32e19ad2efbf487fbec0_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\de-0f-8c-df-8a-7f\WpadDecisionTime = 508f6b76936edb01	2025-01-24_decdd87c07eb32e19ad2efbf487fbec0_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-24_decdd87c07eb32e19ad2efbf487fbec0_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2025-01-24_decdd87c07eb32e19ad2efbf487fbec0_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-24_decdd87c07eb32e19ad2efbf487fbec0_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2025-01-24_decdd87c07eb32e19ad2efbf487fbec0_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{788A0A1D-7D7F-4D43-AE7F-1A1C41184F5A}\de-0f-8c-df-8a-7f	2025-01-24_decdd87c07eb32e19ad2efbf487fbec0_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\de-0f-8c-df-8a-7f\WpadDecision = "0"	2025-01-24_decdd87c07eb32e19ad2efbf487fbec0_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2025-01-24_decdd87c07eb32e19ad2efbf487fbec0_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-24_decdd87c07eb32e19ad2efbf487fbec0_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1628
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:1284

C:\Users\Admin\AppData\Local\Temp\2025-01-24_decdd87c07eb32e19ad2efbf487fbec0_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2025-01-24_decdd87c07eb32e19ad2efbf487fbec0_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:452

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
bf6217b18d8d35930d9ec3e5152292af

SHA1
3c2e4bb8433eb8ed57183dcf1ec13f59cac5ca35

SHA256
bac8b9807cff17fab7fc9e7fe0801fbeea79a4cdee9fa4692b5bccca6cec45fc

SHA512
2740c1139761d594e3fb4ad893d4dee946282590e301acf4fba8f8d0cfe7f30e8ed2d8fddb35f8bf6c8f4fe818c5fef2fb5062bd96003caa67b37e875fdc5808

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