wannacry | 1a288fbc320ec74748acc382dc2c58ea1bbea2eb993939d261d5117771438613

General

Target

2024-08-05_8c16ea13729a84976f110120c31b200e_wannacry.exe
Size

5.0MB
MD5

8c16ea13729a84976f110120c31b200e
SHA1

d371bb4be264f6522ffc3daea544514d3ea958fc
SHA256

1a288fbc320ec74748acc382dc2c58ea1bbea2eb993939d261d5117771438613
SHA512

574e15df52b1496dfe94ffc819c0fadb7bcc5ad7c873335ef240e1389cbe8848082ac37323181cc9e5b39dd5e7075465cdfa01458f5c8ebec39d3c7c481c811b
SSDEEP

49152:2nAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAA:yDqPoBhz1aRxcSUDk36SA

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3144) 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
2248	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	2024-08-05_8c16ea13729a84976f110120c31b200e_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-08-05_8c16ea13729a84976f110120c31b200e_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	2024-08-05_8c16ea13729a84976f110120c31b200e_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-08-05_8c16ea13729a84976f110120c31b200e_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-08-05_8c16ea13729a84976f110120c31b200e_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-08-05_8c16ea13729a84976f110120c31b200e_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{130BAFCF-9766-4A0B-99F1-66DE54B0F92E}\WpadDecisionReason = "1"	2024-08-05_8c16ea13729a84976f110120c31b200e_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{130BAFCF-9766-4A0B-99F1-66DE54B0F92E}\WpadNetworkName = "Network 3"	2024-08-05_8c16ea13729a84976f110120c31b200e_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-08-05_8c16ea13729a84976f110120c31b200e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-08-05_8c16ea13729a84976f110120c31b200e_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-08-05_8c16ea13729a84976f110120c31b200e_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-08-05_8c16ea13729a84976f110120c31b200e_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{130BAFCF-9766-4A0B-99F1-66DE54B0F92E}\WpadDecision = "0"	2024-08-05_8c16ea13729a84976f110120c31b200e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\e6-bd-f1-a1-bd-68	2024-08-05_8c16ea13729a84976f110120c31b200e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{130BAFCF-9766-4A0B-99F1-66DE54B0F92E}\e6-bd-f1-a1-bd-68	2024-08-05_8c16ea13729a84976f110120c31b200e_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\e6-bd-f1-a1-bd-68\WpadDecisionReason = "1"	2024-08-05_8c16ea13729a84976f110120c31b200e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-08-05_8c16ea13729a84976f110120c31b200e_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-08-05_8c16ea13729a84976f110120c31b200e_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-08-05_8c16ea13729a84976f110120c31b200e_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\e6-bd-f1-a1-bd-68\WpadDecision = "0"	2024-08-05_8c16ea13729a84976f110120c31b200e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-08-05_8c16ea13729a84976f110120c31b200e_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0039000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-08-05_8c16ea13729a84976f110120c31b200e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{130BAFCF-9766-4A0B-99F1-66DE54B0F92E}	2024-08-05_8c16ea13729a84976f110120c31b200e_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{130BAFCF-9766-4A0B-99F1-66DE54B0F92E}\WpadDecisionTime = 6002197f23e7da01	2024-08-05_8c16ea13729a84976f110120c31b200e_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\e6-bd-f1-a1-bd-68\WpadDecisionTime = 6002197f23e7da01	2024-08-05_8c16ea13729a84976f110120c31b200e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-08-05_8c16ea13729a84976f110120c31b200e_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-08-05_8c16ea13729a84976f110120c31b200e_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-08-05_8c16ea13729a84976f110120c31b200e_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-08-05_8c16ea13729a84976f110120c31b200e_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-08-05_8c16ea13729a84976f110120c31b200e_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1908
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2248

C:\Users\Admin\AppData\Local\Temp\2024-08-05_8c16ea13729a84976f110120c31b200e_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-08-05_8c16ea13729a84976f110120c31b200e_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2412

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
16a8fdd68114c10eae3c843faff5916b

SHA1
98555ee1fd1b0a1edcdc64ca3cc38bf8da382c76

SHA256
84823e7430ae9e9daeb611e986ca50000a7c66547f5ca060b320101a32a2902c

SHA512
87e96104fd98f0c46e8765f52f48e9de0f29ca8abd96e270f000a9da4c17ef73fde33441e21ca8e8517bad103a99f3bd2bf05dca3e934bd6dfdba5d1c25c27ea

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