wannacry | f3056f5ac61cfa74069cade78e752c289cf8c2c5974761a61d254f9dcc95c51f

General

Target

2024-11-18_92614ee20e4570ded744ced7087a64a6_wannacry.exe
Size

3.6MB
MD5

92614ee20e4570ded744ced7087a64a6
SHA1

5425a38cd95d069b213db5712ce38fc0cfd992ea
SHA256

f3056f5ac61cfa74069cade78e752c289cf8c2c5974761a61d254f9dcc95c51f
SHA512

dd9ce4040a41bdbe1ce950d080516ae148dcbce605c8141e5cd42d7f0d772def62140d6dc2303e9fc919ec9123ca271d5b29dd2918c9a5908d9967b45756ed18
SSDEEP

24576:2bLgddQhfdmMSirYbcMNgef0QeQjG/D8kIqRYoAdNLKz6626TH+up:2nAQqMSPbcBVQej/1INRK9

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 (3336) 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
2672	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	2024-11-18_92614ee20e4570ded744ced7087a64a6_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-11-18_92614ee20e4570ded744ced7087a64a6_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	2024-11-18_92614ee20e4570ded744ced7087a64a6_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-11-18_92614ee20e4570ded744ced7087a64a6_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-11-18_92614ee20e4570ded744ced7087a64a6_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-11-18_92614ee20e4570ded744ced7087a64a6_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-11-18_92614ee20e4570ded744ced7087a64a6_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-11-18_92614ee20e4570ded744ced7087a64a6_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-11-18_92614ee20e4570ded744ced7087a64a6_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\2a-5a-d9-7d-e8-6f	2024-11-18_92614ee20e4570ded744ced7087a64a6_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\2a-5a-d9-7d-e8-6f\WpadDecision = "0"	2024-11-18_92614ee20e4570ded744ced7087a64a6_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-11-18_92614ee20e4570ded744ced7087a64a6_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-11-18_92614ee20e4570ded744ced7087a64a6_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-11-18_92614ee20e4570ded744ced7087a64a6_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0131000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-11-18_92614ee20e4570ded744ced7087a64a6_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{539F23BA-7A55-4351-86C9-DC0F555AB0C3}\WpadDecisionReason = "1"	2024-11-18_92614ee20e4570ded744ced7087a64a6_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{539F23BA-7A55-4351-86C9-DC0F555AB0C3}\WpadDecision = "0"	2024-11-18_92614ee20e4570ded744ced7087a64a6_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{539F23BA-7A55-4351-86C9-DC0F555AB0C3}\WpadNetworkName = "Network 3"	2024-11-18_92614ee20e4570ded744ced7087a64a6_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\2a-5a-d9-7d-e8-6f\WpadDecisionReason = "1"	2024-11-18_92614ee20e4570ded744ced7087a64a6_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-11-18_92614ee20e4570ded744ced7087a64a6_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-11-18_92614ee20e4570ded744ced7087a64a6_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-11-18_92614ee20e4570ded744ced7087a64a6_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-11-18_92614ee20e4570ded744ced7087a64a6_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-11-18_92614ee20e4570ded744ced7087a64a6_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{539F23BA-7A55-4351-86C9-DC0F555AB0C3}	2024-11-18_92614ee20e4570ded744ced7087a64a6_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{539F23BA-7A55-4351-86C9-DC0F555AB0C3}\WpadDecisionTime = 80c94be07d39db01	2024-11-18_92614ee20e4570ded744ced7087a64a6_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{539F23BA-7A55-4351-86C9-DC0F555AB0C3}\2a-5a-d9-7d-e8-6f	2024-11-18_92614ee20e4570ded744ced7087a64a6_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\2a-5a-d9-7d-e8-6f\WpadDecisionTime = 80c94be07d39db01	2024-11-18_92614ee20e4570ded744ced7087a64a6_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-11-18_92614ee20e4570ded744ced7087a64a6_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-18_92614ee20e4570ded744ced7087a64a6_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2632
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2672

C:\Users\Admin\AppData\Local\Temp\2024-11-18_92614ee20e4570ded744ced7087a64a6_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-11-18_92614ee20e4570ded744ced7087a64a6_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2748

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
1bacbbeb7407235617c0dcf44c55b30f

SHA1
fe05302757d82a08e0e9ad898def12c935a2585c

SHA256
6b40443fa3fbd7217e2ea45cae40f8110c6d9ff0581a7207e2ec94cc631a4849

SHA512
a8da55ac8ae54b4a8c6e84b71408d461ab33ab022cd887c7fa5933a547e1e44e66a59029b02280389a6fb4acb736847721da3ffc95a691cbf8a8e7351e9b573d

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