wannacry | 5fe63fa6fde5aca73716ef3a171a47130559e38ad16a17335158da11b30da01f

General

Target

2024-10-12_1e64a00e68e01864d3f7d310be8ef85f_wannacry.exe
Size

3.6MB
MD5

1e64a00e68e01864d3f7d310be8ef85f
SHA1

c58f0ed7e8f980d53fa6cf5908593489713c3b24
SHA256

5fe63fa6fde5aca73716ef3a171a47130559e38ad16a17335158da11b30da01f
SHA512

7bffad5ef9bdca923cbe624be171947f6cf2192aee7c37c136239073e9931a6b6c3cabc11e3985c5fa97a88682526ef88d98267d663a1ca590dea9390d40a247
SSDEEP

49152:2nAQqMSPbcBVQej/1INRx+TSqTdX1HHEau3R8yAH1plAHI:yDqPoBhz1aRxcSUDu3R8yAVp2HI

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3116) 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
3028	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_1e64a00e68e01864d3f7d310be8ef85f_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-10-12_1e64a00e68e01864d3f7d310be8ef85f_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_1e64a00e68e01864d3f7d310be8ef85f_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-12_1e64a00e68e01864d3f7d310be8ef85f_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_1e64a00e68e01864d3f7d310be8ef85f_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_1e64a00e68e01864d3f7d310be8ef85f_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-10-12_1e64a00e68e01864d3f7d310be8ef85f_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-10-12_1e64a00e68e01864d3f7d310be8ef85f_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f007a000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_1e64a00e68e01864d3f7d310be8ef85f_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\5e-75-fd-b2-36-29\WpadDecision = "0"	2024-10-12_1e64a00e68e01864d3f7d310be8ef85f_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-10-12_1e64a00e68e01864d3f7d310be8ef85f_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-10-12_1e64a00e68e01864d3f7d310be8ef85f_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8B75BE14-5AA9-4B67-AF64-62B4A5508612}\WpadDecisionTime = c019dab3531cdb01	2024-10-12_1e64a00e68e01864d3f7d310be8ef85f_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8B75BE14-5AA9-4B67-AF64-62B4A5508612}\WpadNetworkName = "Network 3"	2024-10-12_1e64a00e68e01864d3f7d310be8ef85f_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\5e-75-fd-b2-36-29\WpadDecisionReason = "1"	2024-10-12_1e64a00e68e01864d3f7d310be8ef85f_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-12_1e64a00e68e01864d3f7d310be8ef85f_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-10-12_1e64a00e68e01864d3f7d310be8ef85f_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-12_1e64a00e68e01864d3f7d310be8ef85f_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-10-12_1e64a00e68e01864d3f7d310be8ef85f_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8B75BE14-5AA9-4B67-AF64-62B4A5508612}\WpadDecisionReason = "1"	2024-10-12_1e64a00e68e01864d3f7d310be8ef85f_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8B75BE14-5AA9-4B67-AF64-62B4A5508612}\WpadDecision = "0"	2024-10-12_1e64a00e68e01864d3f7d310be8ef85f_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\5e-75-fd-b2-36-29	2024-10-12_1e64a00e68e01864d3f7d310be8ef85f_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-10-12_1e64a00e68e01864d3f7d310be8ef85f_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-10-12_1e64a00e68e01864d3f7d310be8ef85f_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-10-12_1e64a00e68e01864d3f7d310be8ef85f_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8B75BE14-5AA9-4B67-AF64-62B4A5508612}	2024-10-12_1e64a00e68e01864d3f7d310be8ef85f_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8B75BE14-5AA9-4B67-AF64-62B4A5508612}\5e-75-fd-b2-36-29	2024-10-12_1e64a00e68e01864d3f7d310be8ef85f_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\5e-75-fd-b2-36-29\WpadDecisionTime = c019dab3531cdb01	2024-10-12_1e64a00e68e01864d3f7d310be8ef85f_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-10-12_1e64a00e68e01864d3f7d310be8ef85f_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-12_1e64a00e68e01864d3f7d310be8ef85f_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:540
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:3028

C:\Users\Admin\AppData\Local\Temp\2024-10-12_1e64a00e68e01864d3f7d310be8ef85f_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-10-12_1e64a00e68e01864d3f7d310be8ef85f_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2020

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

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Downloads

C:\Windows\tasksche.exe

Filesize
3.4MB

MD5
95820ef2ba66a2dd99169a582a4a8fe7

SHA1
9f5d1cbc2d9d009b2f694a53eda408bdf591ae61

SHA256
9c003c6c614a3d613387aa4d064a2b0daba35b57a1ecdeb5b694ba686949786e

SHA512
2a9102acc070fa39039f4bd39d69a7efe60533f174ff9ba0cca1a810d63bbf1a9f3e144a9a402a6bb5ceecabf4c3f984da2801c7ff5ac7a4c5ae5d05d4dc54e0

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Analysis

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