wannacry | 55b62300afea052c6bb7cfd06a3aa4b282118d0bd8f8b1bedace4c35a8ff9c84

General

Target

2025-02-14_7bcbe5f6b9ca29765fc34d50720e1cb4_wannacry.exe
Size

5.0MB
MD5

7bcbe5f6b9ca29765fc34d50720e1cb4
SHA1

60bc46f212c4bec12d4e5b6d9cd0f4f6aac566ed
SHA256

55b62300afea052c6bb7cfd06a3aa4b282118d0bd8f8b1bedace4c35a8ff9c84
SHA512

bf5137a9d1e23c1a65f3ca6792b0c33f46c479f39211c4cb2d9355d2dbbed254580957d00426a45d155d34218519732ba50d648c516f7182b80f678cd4efd8c0
SSDEEP

6144:GE9l9ynqIYVTH5DgSgNajldktM0XXrCIagQhMV9qbBLIwYQuy8DLqB:GebLgmluCtgQhMbaIMu7Lw

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 (3203) amount of remote hosts 1 TTPs
This may indicate a network scan to discover remotely running services.
discovery

Network Service Discovery
T1046

Downloads MZ/PE file 1 IoCs

flow	pid	Process
1201	1588	Process not Found

Executes dropped EXE 1 IoCs

pid	Process
2184	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\IE	2025-02-14_7bcbe5f6b9ca29765fc34d50720e1cb4_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies	2025-02-14_7bcbe5f6b9ca29765fc34d50720e1cb4_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5	2025-02-14_7bcbe5f6b9ca29765fc34d50720e1cb4_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5	2025-02-14_7bcbe5f6b9ca29765fc34d50720e1cb4_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2025-02-14_7bcbe5f6b9ca29765fc34d50720e1cb4_wannacry.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2936	2184	WerFault.exe	90

System Location Discovery: System Language Discovery 1 TTPs 4 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	2025-02-14_7bcbe5f6b9ca29765fc34d50720e1cb4_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-14_7bcbe5f6b9ca29765fc34d50720e1cb4_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tasksche.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MicrosoftEdgeUpdate.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
4964	MicrosoftEdgeUpdate.exe

Modifies data under HKEY_USERS 15 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft	2025-02-14_7bcbe5f6b9ca29765fc34d50720e1cb4_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2025-02-14_7bcbe5f6b9ca29765fc34d50720e1cb4_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\P3P	2025-02-14_7bcbe5f6b9ca29765fc34d50720e1cb4_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	2025-02-14_7bcbe5f6b9ca29765fc34d50720e1cb4_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	2025-02-14_7bcbe5f6b9ca29765fc34d50720e1cb4_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	2025-02-14_7bcbe5f6b9ca29765fc34d50720e1cb4_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software	2025-02-14_7bcbe5f6b9ca29765fc34d50720e1cb4_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2025-02-14_7bcbe5f6b9ca29765fc34d50720e1cb4_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\P3P\History	2025-02-14_7bcbe5f6b9ca29765fc34d50720e1cb4_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows	2025-02-14_7bcbe5f6b9ca29765fc34d50720e1cb4_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion	2025-02-14_7bcbe5f6b9ca29765fc34d50720e1cb4_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2025-02-14_7bcbe5f6b9ca29765fc34d50720e1cb4_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2025-02-14_7bcbe5f6b9ca29765fc34d50720e1cb4_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	2025-02-14_7bcbe5f6b9ca29765fc34d50720e1cb4_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2025-02-14_7bcbe5f6b9ca29765fc34d50720e1cb4_wannacry.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3968 wrote to memory of 2184	3968	2025-02-14_7bcbe5f6b9ca29765fc34d50720e1cb4_wannacry.exe	90
PID 3968 wrote to memory of 2184	3968	2025-02-14_7bcbe5f6b9ca29765fc34d50720e1cb4_wannacry.exe	90
PID 3968 wrote to memory of 2184	3968	2025-02-14_7bcbe5f6b9ca29765fc34d50720e1cb4_wannacry.exe	90

C:\Users\Admin\AppData\Local\Temp\2025-02-14_7bcbe5f6b9ca29765fc34d50720e1cb4_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-14_7bcbe5f6b9ca29765fc34d50720e1cb4_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3968
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2184
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2184 -s 220
    3⤵
    - Program crash
    PID:2936

C:\Users\Admin\AppData\Local\Temp\2025-02-14_7bcbe5f6b9ca29765fc34d50720e1cb4_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2025-02-14_7bcbe5f6b9ca29765fc34d50720e1cb4_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:5044

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2184 -ip 2184
1⤵
PID:4652

C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSI3IiBpbnN0YWxsZGF0ZXRpbWU9IjE3Mzg5NDY0MzMiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4MzQxODc1OTU2NTAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI1NDI1NDU4MzI4Ii8-PC9hcHA-PC9yZXF1ZXN0Pg
1⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
PID:4964

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

System Network Configuration Discovery

1

T1016

Internet Connection Discovery

1

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\tasksche.exe

Filesize
2.0MB

MD5
0a58685f92214bc3980eb4a9b932af85

SHA1
9e44e912fef06ce84989626496bd1766dbd25d84

SHA256
f6d60a21b5a3fb4b7ef9a6fecab3aaf6d058032fbf3ec479cc0ad59b24c09af4

SHA512
091278fdfc9cccdaa2fe46e9ac942aaf389487d4f7fbb876532b1f926e407e189dce5b70a8602596d11f8bca8da592d69383ad14cd58dbe77a79fa761a190ca6

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