wannacry | 5639cfe94cf5de701fbeb85d69446eb390626ac41ae967f3cb4cb4721a4a5db1

General

Target

2024-10-12_0300423cdcbd345acc422e039bae5a07_wannacry.exe
Size

3.6MB
MD5

0300423cdcbd345acc422e039bae5a07
SHA1

4ad6517f7ca8bdd4307f7ca3fb3bfc1804d12079
SHA256

5639cfe94cf5de701fbeb85d69446eb390626ac41ae967f3cb4cb4721a4a5db1
SHA512

1089cbb24304b2e83d5d0270e24958deeb529d2c9561c612da420ee3ddc30beed7993b59c1b7e4cb57da6f0609e90b78388d2056c305471133bfc516f7f09d46
SSDEEP

49152:AnAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAA:ADqPoBhz1aRxcSUDk36SA

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3268) 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
2756	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_0300423cdcbd345acc422e039bae5a07_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-10-12_0300423cdcbd345acc422e039bae5a07_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_0300423cdcbd345acc422e039bae5a07_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-12_0300423cdcbd345acc422e039bae5a07_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\History\CachePrefix = "Visited:"	2024-10-12_0300423cdcbd345acc422e039bae5a07_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{BF7EE2FB-65E7-4035-9F42-591AB5F77DB3}\WpadDecision = "0"	2024-10-12_0300423cdcbd345acc422e039bae5a07_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{BF7EE2FB-65E7-4035-9F42-591AB5F77DB3}\WpadNetworkName = "Network 3"	2024-10-12_0300423cdcbd345acc422e039bae5a07_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{BF7EE2FB-65E7-4035-9F42-591AB5F77DB3}\32-b4-8e-3c-a1-cb	2024-10-12_0300423cdcbd345acc422e039bae5a07_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-12_0300423cdcbd345acc422e039bae5a07_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-10-12_0300423cdcbd345acc422e039bae5a07_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-10-12_0300423cdcbd345acc422e039bae5a07_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-10-12_0300423cdcbd345acc422e039bae5a07_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\32-b4-8e-3c-a1-cb\WpadDecisionReason = "1"	2024-10-12_0300423cdcbd345acc422e039bae5a07_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\32-b4-8e-3c-a1-cb\WpadDecision = "0"	2024-10-12_0300423cdcbd345acc422e039bae5a07_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_0300423cdcbd345acc422e039bae5a07_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-10-12_0300423cdcbd345acc422e039bae5a07_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{BF7EE2FB-65E7-4035-9F42-591AB5F77DB3}	2024-10-12_0300423cdcbd345acc422e039bae5a07_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-10-12_0300423cdcbd345acc422e039bae5a07_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0168000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_0300423cdcbd345acc422e039bae5a07_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{BF7EE2FB-65E7-4035-9F42-591AB5F77DB3}\WpadDecisionReason = "1"	2024-10-12_0300423cdcbd345acc422e039bae5a07_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{BF7EE2FB-65E7-4035-9F42-591AB5F77DB3}\WpadDecisionTime = a0a0948e891cdb01	2024-10-12_0300423cdcbd345acc422e039bae5a07_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-10-12_0300423cdcbd345acc422e039bae5a07_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-12_0300423cdcbd345acc422e039bae5a07_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_0300423cdcbd345acc422e039bae5a07_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-10-12_0300423cdcbd345acc422e039bae5a07_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\32-b4-8e-3c-a1-cb	2024-10-12_0300423cdcbd345acc422e039bae5a07_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\32-b4-8e-3c-a1-cb\WpadDecisionTime = a0a0948e891cdb01	2024-10-12_0300423cdcbd345acc422e039bae5a07_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-10-12_0300423cdcbd345acc422e039bae5a07_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-10-12_0300423cdcbd345acc422e039bae5a07_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-12_0300423cdcbd345acc422e039bae5a07_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2400
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2756

C:\Users\Admin\AppData\Local\Temp\2024-10-12_0300423cdcbd345acc422e039bae5a07_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-10-12_0300423cdcbd345acc422e039bae5a07_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2740

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
3233aced9279ef54267c479bba665b90

SHA1
0b2cc142386641901511269503cdf6f641fad305

SHA256
f60f8a6bcaf1384a0d6a76d3e88007a8604560b263d2b8aeee06fd74c9ee5b3b

SHA512
55f25c51ffb89d46f2a7d2ed9b67701e178bd68e74b71d757d5fa14bd9530a427104fc36116633033ead762ecf7960ab96429f5b0a085a701001c6832ba4555e

Download Submit
memory/2400-0-0x0000000000400000-0x0000000000A73000-memory.dmp

Filesize
6.4MB

Download
memory/2400-6-0x0000000000400000-0x0000000000A73000-memory.dmp

Filesize
6.4MB

Download
memory/2740-1-0x0000000000400000-0x0000000000A73000-memory.dmp

Filesize
6.4MB

Download
memory/2740-7-0x0000000000400000-0x0000000000A73000-memory.dmp

Filesize
6.4MB

Download

Analysis

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