wannacry | 007921d00c0828ee842b2ef64ceec3d9aa55c9a1b0941043cb9db8f08be2185e

General

Target

2024-10-12_890303097a7f8978eca992c1ac45029c_wannacry.exe
Size

3.6MB
MD5

890303097a7f8978eca992c1ac45029c
SHA1

6c6e985f57b1c7c9a04d4ce4638d1860b99fef09
SHA256

007921d00c0828ee842b2ef64ceec3d9aa55c9a1b0941043cb9db8f08be2185e
SHA512

e2225037bf5afe477ffa16fa7d755cd074e364846eb9f6cb812fdbf23d6ea0abb6661efbfec3e6132cb373b8dc6b9bb6a7265a267fc22aa20f8ffae74de6b2d0
SSDEEP

49152:2nAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAAcAMEcaEauzffFKA6iA2P:yDqPoBhz1aRxcSUDk36SA759rMNiJ

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3059) 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
2136	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_890303097a7f8978eca992c1ac45029c_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-10-12_890303097a7f8978eca992c1ac45029c_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_890303097a7f8978eca992c1ac45029c_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-12_890303097a7f8978eca992c1ac45029c_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-12_890303097a7f8978eca992c1ac45029c_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-12_890303097a7f8978eca992c1ac45029c_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00ce000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_890303097a7f8978eca992c1ac45029c_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{22FF631F-9759-4079-B847-5A52125836E9}\WpadDecisionReason = "1"	2024-10-12_890303097a7f8978eca992c1ac45029c_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_890303097a7f8978eca992c1ac45029c_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-10-12_890303097a7f8978eca992c1ac45029c_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-10-12_890303097a7f8978eca992c1ac45029c_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-10-12_890303097a7f8978eca992c1ac45029c_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-10-12_890303097a7f8978eca992c1ac45029c_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{22FF631F-9759-4079-B847-5A52125836E9}\WpadDecision = "0"	2024-10-12_890303097a7f8978eca992c1ac45029c_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ea-98-f6-20-7b-45	2024-10-12_890303097a7f8978eca992c1ac45029c_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{22FF631F-9759-4079-B847-5A52125836E9}\ea-98-f6-20-7b-45	2024-10-12_890303097a7f8978eca992c1ac45029c_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ea-98-f6-20-7b-45\WpadDecisionReason = "1"	2024-10-12_890303097a7f8978eca992c1ac45029c_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_890303097a7f8978eca992c1ac45029c_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-10-12_890303097a7f8978eca992c1ac45029c_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-10-12_890303097a7f8978eca992c1ac45029c_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-10-12_890303097a7f8978eca992c1ac45029c_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{22FF631F-9759-4079-B847-5A52125836E9}	2024-10-12_890303097a7f8978eca992c1ac45029c_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{22FF631F-9759-4079-B847-5A52125836E9}\WpadDecisionTime = d0bff9cd5e1cdb01	2024-10-12_890303097a7f8978eca992c1ac45029c_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ea-98-f6-20-7b-45\WpadDecision = "0"	2024-10-12_890303097a7f8978eca992c1ac45029c_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-10-12_890303097a7f8978eca992c1ac45029c_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-10-12_890303097a7f8978eca992c1ac45029c_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{22FF631F-9759-4079-B847-5A52125836E9}\WpadNetworkName = "Network 3"	2024-10-12_890303097a7f8978eca992c1ac45029c_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ea-98-f6-20-7b-45\WpadDecisionTime = d0bff9cd5e1cdb01	2024-10-12_890303097a7f8978eca992c1ac45029c_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-10-12_890303097a7f8978eca992c1ac45029c_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-12_890303097a7f8978eca992c1ac45029c_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2408
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2136

C:\Users\Admin\AppData\Local\Temp\2024-10-12_890303097a7f8978eca992c1ac45029c_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-10-12_890303097a7f8978eca992c1ac45029c_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:1644

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
c2865802ef28b2e76e4e52887ae5518a

SHA1
0cfd057839ef4c3be0a1065a42ae91d321e92ba9

SHA256
1e755460e6ecb0784f85b0daf7547e641bd0ce74c432bfea83ae2d2cd44c2959

SHA512
0f667b832bff40e1861981ed053e81c8c292da13ad7ce339edecf425dbf70611543fceec2f65ad606d5b5c9a58f30ad126b943ab88886d7e027f874172e0e3c0

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Analysis

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