wannacry | e0107c968009ff54356c837a5125ef29aa7592b02ab6d5d2478017f4f877f39b

General

Target

2025-02-16_b195f25447beeeea079f5c40e6fa9fa2_wannacry.exe
Size

5.0MB
MD5

b195f25447beeeea079f5c40e6fa9fa2
SHA1

437ce849a42f18e8902f800c0602e6ff1f945176
SHA256

e0107c968009ff54356c837a5125ef29aa7592b02ab6d5d2478017f4f877f39b
SHA512

5afab1e2344f2b466a8b925d8b724863d3218729488b377772e2ac96037f24ff1a21fb6b5b7e68bad5d0eaef0827070be9d90b937fd8616da0392d9b10a1fbeb
SSDEEP

98304:yDqPoBhzs6SAEdhvxWa9P593R8yAVp2HF:yDqPesZAEUadzR8yc4HF

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 (3347) 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
2568	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 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	2025-02-16_b195f25447beeeea079f5c40e6fa9fa2_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2025-02-16_b195f25447beeeea079f5c40e6fa9fa2_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	2025-02-16_b195f25447beeeea079f5c40e6fa9fa2_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-16_b195f25447beeeea079f5c40e6fa9fa2_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2025-02-16_b195f25447beeeea079f5c40e6fa9fa2_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00af000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-02-16_b195f25447beeeea079f5c40e6fa9fa2_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\66-c2-8d-8d-27-1e	2025-02-16_b195f25447beeeea079f5c40e6fa9fa2_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\66-c2-8d-8d-27-1e\WpadDecisionReason = "1"	2025-02-16_b195f25447beeeea079f5c40e6fa9fa2_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2025-02-16_b195f25447beeeea079f5c40e6fa9fa2_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{0F42193C-7F77-4460-9F9B-EEAD47D12654}\WpadDecision = "0"	2025-02-16_b195f25447beeeea079f5c40e6fa9fa2_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2025-02-16_b195f25447beeeea079f5c40e6fa9fa2_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2025-02-16_b195f25447beeeea079f5c40e6fa9fa2_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-02-16_b195f25447beeeea079f5c40e6fa9fa2_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2025-02-16_b195f25447beeeea079f5c40e6fa9fa2_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2025-02-16_b195f25447beeeea079f5c40e6fa9fa2_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-02-16_b195f25447beeeea079f5c40e6fa9fa2_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2025-02-16_b195f25447beeeea079f5c40e6fa9fa2_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2025-02-16_b195f25447beeeea079f5c40e6fa9fa2_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2025-02-16_b195f25447beeeea079f5c40e6fa9fa2_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{0F42193C-7F77-4460-9F9B-EEAD47D12654}\66-c2-8d-8d-27-1e	2025-02-16_b195f25447beeeea079f5c40e6fa9fa2_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\66-c2-8d-8d-27-1e\WpadDecisionTime = 405677995580db01	2025-02-16_b195f25447beeeea079f5c40e6fa9fa2_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{0F42193C-7F77-4460-9F9B-EEAD47D12654}	2025-02-16_b195f25447beeeea079f5c40e6fa9fa2_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2025-02-16_b195f25447beeeea079f5c40e6fa9fa2_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{0F42193C-7F77-4460-9F9B-EEAD47D12654}\WpadDecisionReason = "1"	2025-02-16_b195f25447beeeea079f5c40e6fa9fa2_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{0F42193C-7F77-4460-9F9B-EEAD47D12654}\WpadDecisionTime = 405677995580db01	2025-02-16_b195f25447beeeea079f5c40e6fa9fa2_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{0F42193C-7F77-4460-9F9B-EEAD47D12654}\WpadNetworkName = "Network 3"	2025-02-16_b195f25447beeeea079f5c40e6fa9fa2_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\66-c2-8d-8d-27-1e\WpadDecision = "0"	2025-02-16_b195f25447beeeea079f5c40e6fa9fa2_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2025-02-16_b195f25447beeeea079f5c40e6fa9fa2_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2025-02-16_b195f25447beeeea079f5c40e6fa9fa2_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-16_b195f25447beeeea079f5c40e6fa9fa2_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:3068
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2568

C:\Users\Admin\AppData\Local\Temp\2025-02-16_b195f25447beeeea079f5c40e6fa9fa2_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2025-02-16_b195f25447beeeea079f5c40e6fa9fa2_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2812

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
7def342cb71106b28d54785f60206c4c

SHA1
b64f11457f3f11a0701d7fcb462060db309d703d

SHA256
7001994c9b71dc184dcbc72a9a15f0da430bd02521161d6172b217bab2440c9c

SHA512
5758a4d28bb11c52930243df4158bd6a935c97351b3e09d5b50c23757e2e0afab461198f4eaf70216d0084431ea8ab5912f1ce13fe9b83921d7f4caf9fe56b11

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