wannacry | 0921e8f080e50b06314a3a811e49241747e8f9e2ab3a5a3454a9adaec45fb449

General

Target

2025-01-11_55e31f54b961e26bb3aa62de951774c0_wannacry.exe
Size

5.0MB
MD5

55e31f54b961e26bb3aa62de951774c0
SHA1

d1f6f53829b5776ac78aa3f40ab4daab8b85aabd
SHA256

0921e8f080e50b06314a3a811e49241747e8f9e2ab3a5a3454a9adaec45fb449
SHA512

5dc1496e5ace6c51e4dd4852f4aaa331547f2fa8972c7ed5ab944996bb1b458b5f541301b034bb15f1b20394f5e0dde08f6152bfb092f5eddfab3fed90f741c6
SSDEEP

12288:rebLgmluCti62WfSm0iEcQhfYNVUy7ckPU82900Ve7zw+K+DHY1n:ibLguriIfEcQdIVUacMNgef0QY

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 (3187) 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
332	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 5 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Roaming\Microsoft\Windows\Cookies\7NK5AHH7.txt	2025-01-11_55e31f54b961e26bb3aa62de951774c0_wannacry.exe
File created	C:\Windows\SysWOW64\config\systemprofile\AppData\Roaming\Microsoft\Windows\Cookies\11Y9BAO5.txt	2025-01-11_55e31f54b961e26bb3aa62de951774c0_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Roaming\Microsoft\Windows\Cookies\11Y9BAO5.txt	2025-01-11_55e31f54b961e26bb3aa62de951774c0_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	2025-01-11_55e31f54b961e26bb3aa62de951774c0_wannacry.exe
File created	C:\Windows\SysWOW64\config\systemprofile\AppData\Roaming\Microsoft\Windows\Cookies\7NK5AHH7.txt	2025-01-11_55e31f54b961e26bb3aa62de951774c0_wannacry.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2025-01-11_55e31f54b961e26bb3aa62de951774c0_wannacry.exe
File created	C:\Windows\__tmp_rar_sfx_access_check_259524339	tasksche.exe
File created	C:\Windows\eee.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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-11_55e31f54b961e26bb3aa62de951774c0_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-11_55e31f54b961e26bb3aa62de951774c0_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tasksche.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\da-69-7b-8e-e4-c4	2025-01-11_55e31f54b961e26bb3aa62de951774c0_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2025-01-11_55e31f54b961e26bb3aa62de951774c0_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2025-01-11_55e31f54b961e26bb3aa62de951774c0_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2025-01-11_55e31f54b961e26bb3aa62de951774c0_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{D0680EF3-E047-4D10-883E-DF017317245F}	2025-01-11_55e31f54b961e26bb3aa62de951774c0_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{D0680EF3-E047-4D10-883E-DF017317245F}\WpadDecisionReason = "1"	2025-01-11_55e31f54b961e26bb3aa62de951774c0_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0074000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-11_55e31f54b961e26bb3aa62de951774c0_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{D0680EF3-E047-4D10-883E-DF017317245F}\WpadDecisionTime = 50a59f7b3564db01	2025-01-11_55e31f54b961e26bb3aa62de951774c0_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{D0680EF3-E047-4D10-883E-DF017317245F}\da-69-7b-8e-e4-c4	2025-01-11_55e31f54b961e26bb3aa62de951774c0_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\da-69-7b-8e-e4-c4\WpadDecisionReason = "1"	2025-01-11_55e31f54b961e26bb3aa62de951774c0_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-11_55e31f54b961e26bb3aa62de951774c0_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2025-01-11_55e31f54b961e26bb3aa62de951774c0_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2025-01-11_55e31f54b961e26bb3aa62de951774c0_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{D0680EF3-E047-4D10-883E-DF017317245F}\WpadNetworkName = "Network 3"	2025-01-11_55e31f54b961e26bb3aa62de951774c0_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2025-01-11_55e31f54b961e26bb3aa62de951774c0_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2025-01-11_55e31f54b961e26bb3aa62de951774c0_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{D0680EF3-E047-4D10-883E-DF017317245F}\WpadDecision = "0"	2025-01-11_55e31f54b961e26bb3aa62de951774c0_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2025-01-11_55e31f54b961e26bb3aa62de951774c0_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2025-01-11_55e31f54b961e26bb3aa62de951774c0_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-11_55e31f54b961e26bb3aa62de951774c0_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2025-01-11_55e31f54b961e26bb3aa62de951774c0_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2025-01-11_55e31f54b961e26bb3aa62de951774c0_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\da-69-7b-8e-e4-c4\WpadDecisionTime = 50a59f7b3564db01	2025-01-11_55e31f54b961e26bb3aa62de951774c0_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\da-69-7b-8e-e4-c4\WpadDecision = "0"	2025-01-11_55e31f54b961e26bb3aa62de951774c0_wannacry.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
332	tasksche.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2340 wrote to memory of 332	2340	2025-01-11_55e31f54b961e26bb3aa62de951774c0_wannacry.exe	31
PID 2340 wrote to memory of 332	2340	2025-01-11_55e31f54b961e26bb3aa62de951774c0_wannacry.exe	31
PID 2340 wrote to memory of 332	2340	2025-01-11_55e31f54b961e26bb3aa62de951774c0_wannacry.exe	31
PID 2340 wrote to memory of 332	2340	2025-01-11_55e31f54b961e26bb3aa62de951774c0_wannacry.exe	31
PID 2340 wrote to memory of 332	2340	2025-01-11_55e31f54b961e26bb3aa62de951774c0_wannacry.exe	31
PID 2340 wrote to memory of 332	2340	2025-01-11_55e31f54b961e26bb3aa62de951774c0_wannacry.exe	31
PID 2340 wrote to memory of 332	2340	2025-01-11_55e31f54b961e26bb3aa62de951774c0_wannacry.exe	31

C:\Users\Admin\AppData\Local\Temp\2025-01-11_55e31f54b961e26bb3aa62de951774c0_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-11_55e31f54b961e26bb3aa62de951774c0_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2340
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: GetForegroundWindowSpam
  PID:332

C:\Users\Admin\AppData\Local\Temp\2025-01-11_55e31f54b961e26bb3aa62de951774c0_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2025-01-11_55e31f54b961e26bb3aa62de951774c0_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:1148

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
2.0MB

MD5
3967783bf57300f24d73c49d4023c93f

SHA1
b6e1e48aadde8a1ec55e7dcef7a4fc5d74d443a6

SHA256
1ba6b2c31e95219083dd8c1b6df00341d216664abd7d50b2b5788c95323fbb26

SHA512
39bd647a3600057c516d5227e8cb5d8e8183693b74fbb1b52e25472b69f9ffb4e7b3a1185c9a4e45b7c98b99396f9f0015440c2925472fbd6ad45c36dce4a3be

Download Submit
memory/1148-3-0x0000000000400000-0x0000000000A72000-memory.dmp

Filesize
6.4MB

Download
memory/1148-16-0x0000000000400000-0x0000000000A72000-memory.dmp

Filesize
6.4MB

Download
memory/2340-0-0x0000000000400000-0x0000000000A72000-memory.dmp

Filesize
6.4MB

Download
memory/2340-13-0x0000000000400000-0x0000000000A72000-memory.dmp

Filesize
6.4MB

Download

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