wannacry | 03dff98732bb5a21b31a2bb41a87960b7907aa8a91a178a64466e76411f49222

General

Target

2024-11-14_0290f270994dde3502f7b78b0bcb6236_wannacry.exe
Size

3.6MB
MD5

0290f270994dde3502f7b78b0bcb6236
SHA1

b451248188ee6f475ed3dda00db928f4be710e29
SHA256

03dff98732bb5a21b31a2bb41a87960b7907aa8a91a178a64466e76411f49222
SHA512

c8cb8b1a1f57d78df79d419a8abfe38de9ff76953c060b034acf306013ebf00b3c363f61be614e0ca4e4bbf8fb590d3b65b6221db5ba9321269bef93c7d51df9
SSDEEP

12288:GvbLgPlu+QhMbaIMu7L5NVErCA4z2g6rTcbckPU82900Ve7zU:2bLgddQhfdmMSirYbcMNgefU

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Wannacry family
wannacry
Contacts a large (3215) 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
1856	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	2024-11-14_0290f270994dde3502f7b78b0bcb6236_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-11-14_0290f270994dde3502f7b78b0bcb6236_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	2024-11-14_0290f270994dde3502f7b78b0bcb6236_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-11-14_0290f270994dde3502f7b78b0bcb6236_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-11-14_0290f270994dde3502f7b78b0bcb6236_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-11-14_0290f270994dde3502f7b78b0bcb6236_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0126000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-11-14_0290f270994dde3502f7b78b0bcb6236_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{4032CC49-1F21-4E8E-BB0F-BEC91D501325}	2024-11-14_0290f270994dde3502f7b78b0bcb6236_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{4032CC49-1F21-4E8E-BB0F-BEC91D501325}\WpadDecisionTime = f0c515347436db01	2024-11-14_0290f270994dde3502f7b78b0bcb6236_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\e6-2f-bb-90-95-0b\WpadDecisionTime = f0c515347436db01	2024-11-14_0290f270994dde3502f7b78b0bcb6236_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-11-14_0290f270994dde3502f7b78b0bcb6236_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{4032CC49-1F21-4E8E-BB0F-BEC91D501325}\WpadDecision = "0"	2024-11-14_0290f270994dde3502f7b78b0bcb6236_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\e6-2f-bb-90-95-0b\WpadDecision = "0"	2024-11-14_0290f270994dde3502f7b78b0bcb6236_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-11-14_0290f270994dde3502f7b78b0bcb6236_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-11-14_0290f270994dde3502f7b78b0bcb6236_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-11-14_0290f270994dde3502f7b78b0bcb6236_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{4032CC49-1F21-4E8E-BB0F-BEC91D501325}\WpadNetworkName = "Network 3"	2024-11-14_0290f270994dde3502f7b78b0bcb6236_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{4032CC49-1F21-4E8E-BB0F-BEC91D501325}\e6-2f-bb-90-95-0b	2024-11-14_0290f270994dde3502f7b78b0bcb6236_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\e6-2f-bb-90-95-0b\WpadDecisionReason = "1"	2024-11-14_0290f270994dde3502f7b78b0bcb6236_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-11-14_0290f270994dde3502f7b78b0bcb6236_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-11-14_0290f270994dde3502f7b78b0bcb6236_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-11-14_0290f270994dde3502f7b78b0bcb6236_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-11-14_0290f270994dde3502f7b78b0bcb6236_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-11-14_0290f270994dde3502f7b78b0bcb6236_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-11-14_0290f270994dde3502f7b78b0bcb6236_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-11-14_0290f270994dde3502f7b78b0bcb6236_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{4032CC49-1F21-4E8E-BB0F-BEC91D501325}\WpadDecisionReason = "1"	2024-11-14_0290f270994dde3502f7b78b0bcb6236_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\e6-2f-bb-90-95-0b	2024-11-14_0290f270994dde3502f7b78b0bcb6236_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-11-14_0290f270994dde3502f7b78b0bcb6236_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-14_0290f270994dde3502f7b78b0bcb6236_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2644
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:1856

C:\Users\Admin\AppData\Local\Temp\2024-11-14_0290f270994dde3502f7b78b0bcb6236_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-11-14_0290f270994dde3502f7b78b0bcb6236_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2392

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
bff7a3cbcd7c2450553cdc3647d366fa

SHA1
9c6fec1111ab160eadc71e9b92538319bf1c038a

SHA256
c4ee52f2ec9f934854b6b5ae8801d9fa45828881c98ded93c9d65fdc22ed6496

SHA512
e29254b3cc7840f6a75d445ca943a880f51d357e08ee0f4ed24bac90296d7a3e28bc876ae644e7851bdec83397fb195f1366fefff3b6dc015a73b2d5fb7a70f9

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Analysis

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