wannacry | 205ec59de8599560229ec6feebac64db25e20b2bd770733544d02e4ed26d300e

General

Target

2024-08-17_9dfcf3c57ddcad888021db80d8030499_wannacry.exe
Size

3.6MB
MD5

9dfcf3c57ddcad888021db80d8030499
SHA1

68f56830996e6f1ead3bd83e2c176e880a8194a2
SHA256

205ec59de8599560229ec6feebac64db25e20b2bd770733544d02e4ed26d300e
SHA512

88d74a584a05a6ce9f1f4ed89561c9dcc6cc11d1e51b8adf3be81cf4d166cf3b76cd23b8062f004eccd8dc15f1bacd659105354f1d3126a871c35fe1600e96ea
SSDEEP

98304:XDqPoBhz1aRxcSUDk36SAEdhvxWa9P593R/I:XDqPe1Cxcxk3ZAEUadzR/I

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3162) 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
2100	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	2024-08-17_9dfcf3c57ddcad888021db80d8030499_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-08-17_9dfcf3c57ddcad888021db80d8030499_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	2024-08-17_9dfcf3c57ddcad888021db80d8030499_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-08-17_9dfcf3c57ddcad888021db80d8030499_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-08-17_9dfcf3c57ddcad888021db80d8030499_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-08-17_9dfcf3c57ddcad888021db80d8030499_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{D8B39AC2-5D0F-4BA3-AA9C-5973E6F0D117}\WpadDecision = "0"	2024-08-17_9dfcf3c57ddcad888021db80d8030499_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\b2-cb-89-82-48-c9\WpadDecisionReason = "1"	2024-08-17_9dfcf3c57ddcad888021db80d8030499_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-08-17_9dfcf3c57ddcad888021db80d8030499_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-08-17_9dfcf3c57ddcad888021db80d8030499_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-08-17_9dfcf3c57ddcad888021db80d8030499_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-08-17_9dfcf3c57ddcad888021db80d8030499_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-08-17_9dfcf3c57ddcad888021db80d8030499_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{D8B39AC2-5D0F-4BA3-AA9C-5973E6F0D117}\WpadNetworkName = "Network 3"	2024-08-17_9dfcf3c57ddcad888021db80d8030499_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\b2-cb-89-82-48-c9\WpadDecisionTime = 70a669ab98f0da01	2024-08-17_9dfcf3c57ddcad888021db80d8030499_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\b2-cb-89-82-48-c9\WpadDecision = "0"	2024-08-17_9dfcf3c57ddcad888021db80d8030499_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-08-17_9dfcf3c57ddcad888021db80d8030499_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{D8B39AC2-5D0F-4BA3-AA9C-5973E6F0D117}	2024-08-17_9dfcf3c57ddcad888021db80d8030499_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\b2-cb-89-82-48-c9	2024-08-17_9dfcf3c57ddcad888021db80d8030499_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{D8B39AC2-5D0F-4BA3-AA9C-5973E6F0D117}\b2-cb-89-82-48-c9	2024-08-17_9dfcf3c57ddcad888021db80d8030499_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-08-17_9dfcf3c57ddcad888021db80d8030499_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-08-17_9dfcf3c57ddcad888021db80d8030499_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-08-17_9dfcf3c57ddcad888021db80d8030499_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-08-17_9dfcf3c57ddcad888021db80d8030499_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-08-17_9dfcf3c57ddcad888021db80d8030499_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00a5000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-08-17_9dfcf3c57ddcad888021db80d8030499_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{D8B39AC2-5D0F-4BA3-AA9C-5973E6F0D117}\WpadDecisionReason = "1"	2024-08-17_9dfcf3c57ddcad888021db80d8030499_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{D8B39AC2-5D0F-4BA3-AA9C-5973E6F0D117}\WpadDecisionTime = 70a669ab98f0da01	2024-08-17_9dfcf3c57ddcad888021db80d8030499_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-08-17_9dfcf3c57ddcad888021db80d8030499_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-08-17_9dfcf3c57ddcad888021db80d8030499_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2056
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2100

C:\Users\Admin\AppData\Local\Temp\2024-08-17_9dfcf3c57ddcad888021db80d8030499_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-08-17_9dfcf3c57ddcad888021db80d8030499_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2988

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
1df28886635586846938c16bfeb9c955

SHA1
11cb0a2700491d796861dbac48b5ed4fe78ca2c2

SHA256
ddf791d58d4ed15f572738e518665997cd88378d1edbde7e0ab4b88cea31fc86

SHA512
46df7efa30894542420b0afb51c7843fd4273f98a37fecefd94d66e864e1775561fb146f336e5320b5de0488789eadd72a165da433ae5ecab60619dee2e51c9c

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