wannacry | 5a873fcfeea29c232c56ecf4d26b48228e3709a9697094965631bbd9ce771920

General

Target

2024-09-30_8a60841511179adf6a411e4b9c117c49_wannacry.exe
Size

5.0MB
MD5

8a60841511179adf6a411e4b9c117c49
SHA1

4c0af95183f58552de34db0796e838fbd4f86512
SHA256

5a873fcfeea29c232c56ecf4d26b48228e3709a9697094965631bbd9ce771920
SHA512

3119298478a3659c0d653a63fdf4213a7d1d767c117104801af249f9edd0af10b0b4dd55fa3b7efe61b470ef9d8020454b0c8c84bbce9e00e3de925ed8004dc0
SSDEEP

49152:2nFQKMSPbcBVQej/1INRx+TSqTdX1HkQo6SAA:yeKPoBhz1aRxcSUDk36SA

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3320) 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
5036	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 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5	2024-09-30_8a60841511179adf6a411e4b9c117c49_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE	2024-09-30_8a60841511179adf6a411e4b9c117c49_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies	2024-09-30_8a60841511179adf6a411e4b9c117c49_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5	2024-09-30_8a60841511179adf6a411e4b9c117c49_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-09-30_8a60841511179adf6a411e4b9c117c49_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	2024-09-30_8a60841511179adf6a411e4b9c117c49_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-30_8a60841511179adf6a411e4b9c117c49_wannacry.exe

Modifies data under HKEY_USERS 15 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	2024-09-30_8a60841511179adf6a411e4b9c117c49_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	2024-09-30_8a60841511179adf6a411e4b9c117c49_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows	2024-09-30_8a60841511179adf6a411e4b9c117c49_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\P3P	2024-09-30_8a60841511179adf6a411e4b9c117c49_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-09-30_8a60841511179adf6a411e4b9c117c49_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-09-30_8a60841511179adf6a411e4b9c117c49_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	2024-09-30_8a60841511179adf6a411e4b9c117c49_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software	2024-09-30_8a60841511179adf6a411e4b9c117c49_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft	2024-09-30_8a60841511179adf6a411e4b9c117c49_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion	2024-09-30_8a60841511179adf6a411e4b9c117c49_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-30_8a60841511179adf6a411e4b9c117c49_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-09-30_8a60841511179adf6a411e4b9c117c49_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	2024-09-30_8a60841511179adf6a411e4b9c117c49_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\P3P\History	2024-09-30_8a60841511179adf6a411e4b9c117c49_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-09-30_8a60841511179adf6a411e4b9c117c49_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-09-30_8a60841511179adf6a411e4b9c117c49_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-30_8a60841511179adf6a411e4b9c117c49_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:4396
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:5036

C:\Users\Admin\AppData\Local\Temp\2024-09-30_8a60841511179adf6a411e4b9c117c49_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-09-30_8a60841511179adf6a411e4b9c117c49_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:3440

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
ab1ebc464fed29a0ea87afd41cd04e83

SHA1
6d7bc7cab41c3f6fa9f20bdcf8f4d7bdce0484a6

SHA256
0227b9fe45e49e14575337b737c48c8131cd794fe99062cb521bdcb2c196b1de

SHA512
63a07e318e9a07338ad0629e06b3e8fa19f3619aa86de06b840427fb172d46bc18b911e2be977a817ad58384c8619d4317febcd51c0408ca12c09f472019f408

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Analysis

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