wannacry | f460f54fb57f2b639afea7922be91176943ee5a963cd53e1fe40e377ae8e1271

General

Target

2024-12-03_1849941b6023501a9676bb9dfcbdadab_wannacry.exe
Size

3.6MB
MD5

1849941b6023501a9676bb9dfcbdadab
SHA1

ebec212a91dbf236f927922cbff54360e303904c
SHA256

f460f54fb57f2b639afea7922be91176943ee5a963cd53e1fe40e377ae8e1271
SHA512

963d5b1f66fc66413ff1c24061e7b7dab3b05b92f58d8e5c191bedb445e01bf71abdd766de09a3ffe0dbfcc88eeae931bf6c537673d098feddc437d7495928f1
SSDEEP

98304:yDqPoBhz1aRxcSUDk36SAEdhvZ8yAVp2HI:yDqPe1Cxcxk3ZAEF8yc4HI

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 (3174) 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
1224	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	2024-12-03_1849941b6023501a9676bb9dfcbdadab_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-12-03_1849941b6023501a9676bb9dfcbdadab_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	2024-12-03_1849941b6023501a9676bb9dfcbdadab_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-12-03_1849941b6023501a9676bb9dfcbdadab_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{42EA5CAC-5ED3-4DA0-9316-09F90C25D5F7}	2024-12-03_1849941b6023501a9676bb9dfcbdadab_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{42EA5CAC-5ED3-4DA0-9316-09F90C25D5F7}\WpadDecisionTime = f08db7926545db01	2024-12-03_1849941b6023501a9676bb9dfcbdadab_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{42EA5CAC-5ED3-4DA0-9316-09F90C25D5F7}\WpadNetworkName = "Network 3"	2024-12-03_1849941b6023501a9676bb9dfcbdadab_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{42EA5CAC-5ED3-4DA0-9316-09F90C25D5F7}\aa-73-65-ca-4e-27	2024-12-03_1849941b6023501a9676bb9dfcbdadab_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\aa-73-65-ca-4e-27\WpadDecisionTime = f08db7926545db01	2024-12-03_1849941b6023501a9676bb9dfcbdadab_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-12-03_1849941b6023501a9676bb9dfcbdadab_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-12-03_1849941b6023501a9676bb9dfcbdadab_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00a4000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-12-03_1849941b6023501a9676bb9dfcbdadab_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\aa-73-65-ca-4e-27\WpadDecision = "0"	2024-12-03_1849941b6023501a9676bb9dfcbdadab_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-12-03_1849941b6023501a9676bb9dfcbdadab_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\aa-73-65-ca-4e-27	2024-12-03_1849941b6023501a9676bb9dfcbdadab_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-12-03_1849941b6023501a9676bb9dfcbdadab_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-12-03_1849941b6023501a9676bb9dfcbdadab_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-12-03_1849941b6023501a9676bb9dfcbdadab_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{42EA5CAC-5ED3-4DA0-9316-09F90C25D5F7}\WpadDecision = "0"	2024-12-03_1849941b6023501a9676bb9dfcbdadab_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\aa-73-65-ca-4e-27\WpadDecisionReason = "1"	2024-12-03_1849941b6023501a9676bb9dfcbdadab_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-12-03_1849941b6023501a9676bb9dfcbdadab_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-12-03_1849941b6023501a9676bb9dfcbdadab_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-12-03_1849941b6023501a9676bb9dfcbdadab_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-12-03_1849941b6023501a9676bb9dfcbdadab_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{42EA5CAC-5ED3-4DA0-9316-09F90C25D5F7}\WpadDecisionReason = "1"	2024-12-03_1849941b6023501a9676bb9dfcbdadab_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-12-03_1849941b6023501a9676bb9dfcbdadab_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-12-03_1849941b6023501a9676bb9dfcbdadab_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-12-03_1849941b6023501a9676bb9dfcbdadab_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-12-03_1849941b6023501a9676bb9dfcbdadab_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-03_1849941b6023501a9676bb9dfcbdadab_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2892
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:1224

C:\Users\Admin\AppData\Local\Temp\2024-12-03_1849941b6023501a9676bb9dfcbdadab_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-12-03_1849941b6023501a9676bb9dfcbdadab_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2820

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
89d13f23f01e4b2ea53b8c94f8f4b6e8

SHA1
a1f0a663f93981faa314b5d556bca38e3f98bfbc

SHA256
8847b887b4a80d87e79083272110ad19f69a5000aa35d4f19efdf080495a1cb5

SHA512
0870baf0b7e782cfc0351eb8f18ea12fb08d75960ccde74fb2fedc4f18aef44d1987984da3137e55ad5bf21898181bb444b634569157f746919bfe87da98e2f3

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