wannacry | d46baceb692e3cf6e3bb0a309c0446541d7a85b7af98d32cdabfd37cf8399d2a

General

Target

2024-10-30_6d4be73f2e3c7ba98ea9eda27c9bf7d6_wannacry.exe
Size

5.0MB
MD5

6d4be73f2e3c7ba98ea9eda27c9bf7d6
SHA1

0086de39898ebace21275f5c5c8e0980fc0b7dce
SHA256

d46baceb692e3cf6e3bb0a309c0446541d7a85b7af98d32cdabfd37cf8399d2a
SHA512

da7dd954c19156b3e43bb04a2d9f9ad07828d905e3b4198094744abd814776ba3b902843b4d27cb4c1b8ea3510a296d516a1f269ab83e9e55cae385eda4093e2
SSDEEP

6144:eE9l9ynRIYVTH5DgSgNajldktM0XXrCIai62yV9qbBLIwY:e1bLgmluCti62ybaI

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 (3323) 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

Processes:

tasksche.exe

pid process

1432 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

pid	process
1432	tasksche.exe

Drops file in System32 directory 4 IoCs

Processes:

2024-10-30_6d4be73f2e3c7ba98ea9eda27c9bf7d6_wannacry.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5	2024-10-30_6d4be73f2e3c7ba98ea9eda27c9bf7d6_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE	2024-10-30_6d4be73f2e3c7ba98ea9eda27c9bf7d6_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies	2024-10-30_6d4be73f2e3c7ba98ea9eda27c9bf7d6_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5	2024-10-30_6d4be73f2e3c7ba98ea9eda27c9bf7d6_wannacry.exe

Drops file in Windows directory 1 IoCs

Processes:

2024-10-30_6d4be73f2e3c7ba98ea9eda27c9bf7d6_wannacry.exe

description ioc process

File created C:\WINDOWS\tasksche.exe 2024-10-30_6d4be73f2e3c7ba98ea9eda27c9bf7d6_wannacry.exe
Program crash 2 IoCs

Processes:

WerFault.exeWerFault.exe

pid pid_target process target process

2180 1432 WerFault.exe tasksche.exe
1388 1432 WerFault.exe tasksche.exe

description	ioc	process
File created	C:\WINDOWS\tasksche.exe	2024-10-30_6d4be73f2e3c7ba98ea9eda27c9bf7d6_wannacry.exe

pid	pid_target	process	target process
2180	1432	WerFault.exe	tasksche.exe
1388	1432	WerFault.exe	tasksche.exe

System Location Discovery: System Language Discovery 1 TTPs 3 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

Processes:

2024-10-30_6d4be73f2e3c7ba98ea9eda27c9bf7d6_wannacry.exetasksche.exe2024-10-30_6d4be73f2e3c7ba98ea9eda27c9bf7d6_wannacry.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-30_6d4be73f2e3c7ba98ea9eda27c9bf7d6_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tasksche.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-30_6d4be73f2e3c7ba98ea9eda27c9bf7d6_wannacry.exe

Modifies data under HKEY_USERS 15 IoCs

Processes:

2024-10-30_6d4be73f2e3c7ba98ea9eda27c9bf7d6_wannacry.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	2024-10-30_6d4be73f2e3c7ba98ea9eda27c9bf7d6_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	2024-10-30_6d4be73f2e3c7ba98ea9eda27c9bf7d6_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft	2024-10-30_6d4be73f2e3c7ba98ea9eda27c9bf7d6_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-10-30_6d4be73f2e3c7ba98ea9eda27c9bf7d6_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-10-30_6d4be73f2e3c7ba98ea9eda27c9bf7d6_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-30_6d4be73f2e3c7ba98ea9eda27c9bf7d6_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\P3P	2024-10-30_6d4be73f2e3c7ba98ea9eda27c9bf7d6_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software	2024-10-30_6d4be73f2e3c7ba98ea9eda27c9bf7d6_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion	2024-10-30_6d4be73f2e3c7ba98ea9eda27c9bf7d6_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	2024-10-30_6d4be73f2e3c7ba98ea9eda27c9bf7d6_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	2024-10-30_6d4be73f2e3c7ba98ea9eda27c9bf7d6_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\P3P\History	2024-10-30_6d4be73f2e3c7ba98ea9eda27c9bf7d6_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows	2024-10-30_6d4be73f2e3c7ba98ea9eda27c9bf7d6_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-10-30_6d4be73f2e3c7ba98ea9eda27c9bf7d6_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-10-30_6d4be73f2e3c7ba98ea9eda27c9bf7d6_wannacry.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

2024-10-30_6d4be73f2e3c7ba98ea9eda27c9bf7d6_wannacry.exe

description	pid	process	target process
PID 3164 wrote to memory of 1432	3164	2024-10-30_6d4be73f2e3c7ba98ea9eda27c9bf7d6_wannacry.exe	tasksche.exe
PID 3164 wrote to memory of 1432	3164	2024-10-30_6d4be73f2e3c7ba98ea9eda27c9bf7d6_wannacry.exe	tasksche.exe
PID 3164 wrote to memory of 1432	3164	2024-10-30_6d4be73f2e3c7ba98ea9eda27c9bf7d6_wannacry.exe	tasksche.exe

C:\Users\Admin\AppData\Local\Temp\2024-10-30_6d4be73f2e3c7ba98ea9eda27c9bf7d6_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-30_6d4be73f2e3c7ba98ea9eda27c9bf7d6_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3164
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:1432
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1432 -s 216
    3⤵
    - Program crash
    PID:2180
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1432 -s 220
    3⤵
    - Program crash
    PID:1388

C:\Users\Admin\AppData\Local\Temp\2024-10-30_6d4be73f2e3c7ba98ea9eda27c9bf7d6_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-10-30_6d4be73f2e3c7ba98ea9eda27c9bf7d6_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:4672

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1432 -ip 1432
1⤵
PID:1328

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 1432 -ip 1432
1⤵
PID:4792

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

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Downloads

C:\Windows\tasksche.exe

Filesize
2.0MB

MD5
0476e2b506783175f3195160507d2cbd

SHA1
216a3a907280aa0494d0aef588ef700b2f81a2d2

SHA256
bc0a2155bc78ca86153562d52d92a061c8ad0e5a0335f1a3cdceb93c82011dd3

SHA512
48a12c753554a153b3219b132004521ba5de62bd889ed0cba8665e659910829a2d2eae6c6237a45c6e2bbfb167b498b9ac225fb4e4bdae45e615e7e2babde9db

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads