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 (2234) 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
2752	tasksche.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Roaming\Microsoft\Windows\Cookies\0AHTBZM3.txt	2025-02-14_7bcbe5f6b9ca29765fc34d50720e1cb4_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	2025-02-14_7bcbe5f6b9ca29765fc34d50720e1cb4_wannacry.exe
File created	C:\Windows\SysWOW64\config\systemprofile\AppData\Roaming\Microsoft\Windows\Cookies\0AHTBZM3.txt	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
2728	2752	WerFault.exe	33

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

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

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0e-d3-25-1b-d2-f3\WpadDecision = "0"	2025-02-14_7bcbe5f6b9ca29765fc34d50720e1cb4_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2025-02-14_7bcbe5f6b9ca29765fc34d50720e1cb4_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	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	2025-02-14_7bcbe5f6b9ca29765fc34d50720e1cb4_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2025-02-14_7bcbe5f6b9ca29765fc34d50720e1cb4_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f017f000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	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
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{CB3008EC-273D-4E82-8913-4657BA66D40E}\WpadDecisionReason = "1"	2025-02-14_7bcbe5f6b9ca29765fc34d50720e1cb4_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{CB3008EC-273D-4E82-8913-4657BA66D40E}\WpadDecision = "0"	2025-02-14_7bcbe5f6b9ca29765fc34d50720e1cb4_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{CB3008EC-273D-4E82-8913-4657BA66D40E}\WpadNetworkName = "Network 3"	2025-02-14_7bcbe5f6b9ca29765fc34d50720e1cb4_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0e-d3-25-1b-d2-f3	2025-02-14_7bcbe5f6b9ca29765fc34d50720e1cb4_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-02-14_7bcbe5f6b9ca29765fc34d50720e1cb4_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-02-14_7bcbe5f6b9ca29765fc34d50720e1cb4_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2025-02-14_7bcbe5f6b9ca29765fc34d50720e1cb4_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{CB3008EC-273D-4E82-8913-4657BA66D40E}\0e-d3-25-1b-d2-f3	2025-02-14_7bcbe5f6b9ca29765fc34d50720e1cb4_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2025-02-14_7bcbe5f6b9ca29765fc34d50720e1cb4_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{CB3008EC-273D-4E82-8913-4657BA66D40E}	2025-02-14_7bcbe5f6b9ca29765fc34d50720e1cb4_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{CB3008EC-273D-4E82-8913-4657BA66D40E}\WpadDecisionTime = 600068c8177fdb01	2025-02-14_7bcbe5f6b9ca29765fc34d50720e1cb4_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0e-d3-25-1b-d2-f3\WpadDecisionReason = "1"	2025-02-14_7bcbe5f6b9ca29765fc34d50720e1cb4_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0e-d3-25-1b-d2-f3\WpadDecisionTime = 600068c8177fdb01	2025-02-14_7bcbe5f6b9ca29765fc34d50720e1cb4_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2025-02-14_7bcbe5f6b9ca29765fc34d50720e1cb4_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	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

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2412 wrote to memory of 2752	2412	2025-02-14_7bcbe5f6b9ca29765fc34d50720e1cb4_wannacry.exe	33
PID 2412 wrote to memory of 2752	2412	2025-02-14_7bcbe5f6b9ca29765fc34d50720e1cb4_wannacry.exe	33
PID 2412 wrote to memory of 2752	2412	2025-02-14_7bcbe5f6b9ca29765fc34d50720e1cb4_wannacry.exe	33
PID 2412 wrote to memory of 2752	2412	2025-02-14_7bcbe5f6b9ca29765fc34d50720e1cb4_wannacry.exe	33
PID 2752 wrote to memory of 2728	2752	tasksche.exe	34
PID 2752 wrote to memory of 2728	2752	tasksche.exe	34
PID 2752 wrote to memory of 2728	2752	tasksche.exe	34
PID 2752 wrote to memory of 2728	2752	tasksche.exe	34

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:2412
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2752
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2752 -s 36
    3⤵
    - Program crash
    PID:2728

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:2536

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Network Service Discovery

1

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
0a58685f92214bc3980eb4a9b932af85

SHA1
9e44e912fef06ce84989626496bd1766dbd25d84

SHA256
f6d60a21b5a3fb4b7ef9a6fecab3aaf6d058032fbf3ec479cc0ad59b24c09af4

SHA512
091278fdfc9cccdaa2fe46e9ac942aaf389487d4f7fbb876532b1f926e407e189dce5b70a8602596d11f8bca8da592d69383ad14cd58dbe77a79fa761a190ca6

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