wannacry | c4ffae0f619877104eebc00210978f0c283ee4d08f41af3d2f7436d3f7aa5f17

General

Target

2024-10-05_1e8f62d55821a5e78700ec5b63f04283_wannacry.exe
Size

3.6MB
MD5

1e8f62d55821a5e78700ec5b63f04283
SHA1

b4f713f912c018fa9ab8a2cfd57537715ab9c92e
SHA256

c4ffae0f619877104eebc00210978f0c283ee4d08f41af3d2f7436d3f7aa5f17
SHA512

6da36680f831a476b97034c2c6fba2bfbc30fc78a0731e51a71b182bec9b181c69098e197f19a951af58ca02284885b9d94fbd877cca1b7bbd24d5fc5462bc14
SSDEEP

49152:XnAQqtKUacBVQej/1INRx+TSqTdX1HkQo6SAARdhnv:XDqPfBhz1aRxcSUDk36SAEdhv

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3167) 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
2576	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	2024-10-05_1e8f62d55821a5e78700ec5b63f04283_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-10-05_1e8f62d55821a5e78700ec5b63f04283_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	2024-10-05_1e8f62d55821a5e78700ec5b63f04283_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-05_1e8f62d55821a5e78700ec5b63f04283_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\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-05_1e8f62d55821a5e78700ec5b63f04283_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-10-05_1e8f62d55821a5e78700ec5b63f04283_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{08B4CC32-B740-472A-AE95-DD805D0AA94C}	2024-10-05_1e8f62d55821a5e78700ec5b63f04283_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{08B4CC32-B740-472A-AE95-DD805D0AA94C}\WpadDecisionReason = "1"	2024-10-05_1e8f62d55821a5e78700ec5b63f04283_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\9e-55-a7-da-fa-39	2024-10-05_1e8f62d55821a5e78700ec5b63f04283_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{08B4CC32-B740-472A-AE95-DD805D0AA94C}\9e-55-a7-da-fa-39	2024-10-05_1e8f62d55821a5e78700ec5b63f04283_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-05_1e8f62d55821a5e78700ec5b63f04283_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-05_1e8f62d55821a5e78700ec5b63f04283_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-10-05_1e8f62d55821a5e78700ec5b63f04283_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-10-05_1e8f62d55821a5e78700ec5b63f04283_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-10-05_1e8f62d55821a5e78700ec5b63f04283_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{08B4CC32-B740-472A-AE95-DD805D0AA94C}\WpadDecision = "0"	2024-10-05_1e8f62d55821a5e78700ec5b63f04283_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{08B4CC32-B740-472A-AE95-DD805D0AA94C}\WpadNetworkName = "Network 3"	2024-10-05_1e8f62d55821a5e78700ec5b63f04283_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\9e-55-a7-da-fa-39\WpadDecisionReason = "1"	2024-10-05_1e8f62d55821a5e78700ec5b63f04283_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-10-05_1e8f62d55821a5e78700ec5b63f04283_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-10-05_1e8f62d55821a5e78700ec5b63f04283_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-10-05_1e8f62d55821a5e78700ec5b63f04283_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{08B4CC32-B740-472A-AE95-DD805D0AA94C}\WpadDecisionTime = b0adebeb0817db01	2024-10-05_1e8f62d55821a5e78700ec5b63f04283_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\9e-55-a7-da-fa-39\WpadDecisionTime = b0adebeb0817db01	2024-10-05_1e8f62d55821a5e78700ec5b63f04283_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\9e-55-a7-da-fa-39\WpadDecision = "0"	2024-10-05_1e8f62d55821a5e78700ec5b63f04283_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-10-05_1e8f62d55821a5e78700ec5b63f04283_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-05_1e8f62d55821a5e78700ec5b63f04283_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-10-05_1e8f62d55821a5e78700ec5b63f04283_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00c4000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-05_1e8f62d55821a5e78700ec5b63f04283_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-10-05_1e8f62d55821a5e78700ec5b63f04283_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-05_1e8f62d55821a5e78700ec5b63f04283_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2696
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2576

C:\Users\Admin\AppData\Local\Temp\2024-10-05_1e8f62d55821a5e78700ec5b63f04283_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-10-05_1e8f62d55821a5e78700ec5b63f04283_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2676

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
a7063cf78b7be4e2730f2767be15854a

SHA1
2e2373ddc793b84b5bdfbe682b51a3d31d90d3b1

SHA256
c51eb1e41f2ffa314c67609df08f1f57fbc1cc47b36d5ea37a920467fe3444c3

SHA512
5e1ea5f416949830bcc5834f10825340d0138eb81077ae4ced7aefb2f0b755367da02e384183c88ca5a358a9e509ff19bf4ac922778538ba84edb050d28e7df1

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