wannacry | b5465025f8e6bc1089ddbb68488a6f5600e1d44a27b53329476b0a69cf60f2d4

General

Target

2024-09-27_70ef173e0fe423940492edcad5d97c48_wannacry.exe
Size

3.6MB
MD5

70ef173e0fe423940492edcad5d97c48
SHA1

c0019fe0ff0881a615f3e0344169bc6c8e36c378
SHA256

b5465025f8e6bc1089ddbb68488a6f5600e1d44a27b53329476b0a69cf60f2d4
SHA512

caa04968e27954ee2c7431fc7a96c91c6da0488b618a271ba4758a3954aeb51f7a2ac71fe8eb761ada62312cea2c983d79ca817759e9366c0a0a8dd6d702ab1f
SSDEEP

24576:2bLgddQhfdmMSirYbcMNgef0SO6LLuYAMEcpcL7nEaut/8uME76X:2nAQqMSPbcBVeAMEcaEau3RS

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3253) 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
1728	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	2024-09-27_70ef173e0fe423940492edcad5d97c48_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-09-27_70ef173e0fe423940492edcad5d97c48_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	2024-09-27_70ef173e0fe423940492edcad5d97c48_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-27_70ef173e0fe423940492edcad5d97c48_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-09-27_70ef173e0fe423940492edcad5d97c48_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{EE086C78-767A-4CFD-B262-ADE8BDF94FAF}\WpadDecisionReason = "1"	2024-09-27_70ef173e0fe423940492edcad5d97c48_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\02-cb-ae-0f-6b-d7\WpadDecision = "0"	2024-09-27_70ef173e0fe423940492edcad5d97c48_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-09-27_70ef173e0fe423940492edcad5d97c48_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-27_70ef173e0fe423940492edcad5d97c48_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-09-27_70ef173e0fe423940492edcad5d97c48_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-09-27_70ef173e0fe423940492edcad5d97c48_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-09-27_70ef173e0fe423940492edcad5d97c48_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{EE086C78-767A-4CFD-B262-ADE8BDF94FAF}\WpadDecision = "0"	2024-09-27_70ef173e0fe423940492edcad5d97c48_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{EE086C78-767A-4CFD-B262-ADE8BDF94FAF}\WpadNetworkName = "Network 3"	2024-09-27_70ef173e0fe423940492edcad5d97c48_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\02-cb-ae-0f-6b-d7	2024-09-27_70ef173e0fe423940492edcad5d97c48_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-27_70ef173e0fe423940492edcad5d97c48_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-27_70ef173e0fe423940492edcad5d97c48_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-09-27_70ef173e0fe423940492edcad5d97c48_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-09-27_70ef173e0fe423940492edcad5d97c48_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{EE086C78-767A-4CFD-B262-ADE8BDF94FAF}	2024-09-27_70ef173e0fe423940492edcad5d97c48_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{EE086C78-767A-4CFD-B262-ADE8BDF94FAF}\02-cb-ae-0f-6b-d7	2024-09-27_70ef173e0fe423940492edcad5d97c48_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-27_70ef173e0fe423940492edcad5d97c48_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-09-27_70ef173e0fe423940492edcad5d97c48_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\02-cb-ae-0f-6b-d7\WpadDecisionReason = "1"	2024-09-27_70ef173e0fe423940492edcad5d97c48_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-09-27_70ef173e0fe423940492edcad5d97c48_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0198000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-27_70ef173e0fe423940492edcad5d97c48_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{EE086C78-767A-4CFD-B262-ADE8BDF94FAF}\WpadDecisionTime = b08924360011db01	2024-09-27_70ef173e0fe423940492edcad5d97c48_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\02-cb-ae-0f-6b-d7\WpadDecisionTime = b08924360011db01	2024-09-27_70ef173e0fe423940492edcad5d97c48_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-09-27_70ef173e0fe423940492edcad5d97c48_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-27_70ef173e0fe423940492edcad5d97c48_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2956
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:1728

C:\Users\Admin\AppData\Local\Temp\2024-09-27_70ef173e0fe423940492edcad5d97c48_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-09-27_70ef173e0fe423940492edcad5d97c48_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2276

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
74b7950b5ba26023b037f1db6b144323

SHA1
3355e6f2d3a37cd74f19417ce748012ec1cf1f48

SHA256
a11eda26f9b73982e9f7d81a5cf312c8ce63bc682c85f4f0e331af889f9c6edc

SHA512
ff0783508f5625e248f552721c393e51a5ab19473e980d93b625a5afffb1634bfa9d619bd6f2c61317d1b78353cb4614118db571e88c493703df446a25c6074f

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