wannacry | f5802b1dd75c2ed4263de761db7a069999872ff1d059360604f9783793ba92e1

General

Target

2025-02-01_823d2e7eb5f62a114834b8607a35e742_wannacry.exe
Size

5.0MB
MD5

823d2e7eb5f62a114834b8607a35e742
SHA1

4999b245bb956e22dff4c8002b8c097aea67c823
SHA256

f5802b1dd75c2ed4263de761db7a069999872ff1d059360604f9783793ba92e1
SHA512

fc755306bfb6f81d5385eebf6cd5948e9200c0336a1967c05a81f310f2ebe19d7a23254554a3956cf2ef7dcc56c30fa073b160c172a4156cfa9f619f9ef5d526
SSDEEP

49152:2nAQqMSPbcBVLPAMEcaEau3R8yAH1plAHv:yDqPoB5P593R8yAVp2Hv

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 (3212) 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
2420	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	2025-02-01_823d2e7eb5f62a114834b8607a35e742_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2025-02-01_823d2e7eb5f62a114834b8607a35e742_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	2025-02-01_823d2e7eb5f62a114834b8607a35e742_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-01_823d2e7eb5f62a114834b8607a35e742_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2025-02-01_823d2e7eb5f62a114834b8607a35e742_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-02-01_823d2e7eb5f62a114834b8607a35e742_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2025-02-01_823d2e7eb5f62a114834b8607a35e742_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2B40A854-515A-4879-8776-C9A20C8725F3}\WpadDecision = "0"	2025-02-01_823d2e7eb5f62a114834b8607a35e742_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2B40A854-515A-4879-8776-C9A20C8725F3}\WpadDecisionTime = 5083f5a4a974db01	2025-02-01_823d2e7eb5f62a114834b8607a35e742_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\f2-a4-37-b1-44-1b\WpadDecisionTime = 5083f5a4a974db01	2025-02-01_823d2e7eb5f62a114834b8607a35e742_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\f2-a4-37-b1-44-1b\WpadDecision = "0"	2025-02-01_823d2e7eb5f62a114834b8607a35e742_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2025-02-01_823d2e7eb5f62a114834b8607a35e742_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2025-02-01_823d2e7eb5f62a114834b8607a35e742_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2025-02-01_823d2e7eb5f62a114834b8607a35e742_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f016f000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-02-01_823d2e7eb5f62a114834b8607a35e742_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2B40A854-515A-4879-8776-C9A20C8725F3}	2025-02-01_823d2e7eb5f62a114834b8607a35e742_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\f2-a4-37-b1-44-1b	2025-02-01_823d2e7eb5f62a114834b8607a35e742_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2025-02-01_823d2e7eb5f62a114834b8607a35e742_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2025-02-01_823d2e7eb5f62a114834b8607a35e742_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2025-02-01_823d2e7eb5f62a114834b8607a35e742_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2025-02-01_823d2e7eb5f62a114834b8607a35e742_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2025-02-01_823d2e7eb5f62a114834b8607a35e742_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\f2-a4-37-b1-44-1b\WpadDecisionReason = "1"	2025-02-01_823d2e7eb5f62a114834b8607a35e742_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-02-01_823d2e7eb5f62a114834b8607a35e742_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2025-02-01_823d2e7eb5f62a114834b8607a35e742_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2B40A854-515A-4879-8776-C9A20C8725F3}\WpadDecisionReason = "1"	2025-02-01_823d2e7eb5f62a114834b8607a35e742_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2B40A854-515A-4879-8776-C9A20C8725F3}\WpadNetworkName = "Network 3"	2025-02-01_823d2e7eb5f62a114834b8607a35e742_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2B40A854-515A-4879-8776-C9A20C8725F3}\f2-a4-37-b1-44-1b	2025-02-01_823d2e7eb5f62a114834b8607a35e742_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2025-02-01_823d2e7eb5f62a114834b8607a35e742_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-01_823d2e7eb5f62a114834b8607a35e742_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2272
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2420

C:\Users\Admin\AppData\Local\Temp\2025-02-01_823d2e7eb5f62a114834b8607a35e742_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2025-02-01_823d2e7eb5f62a114834b8607a35e742_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:1512

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

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Downloads

C:\Windows\tasksche.exe

Filesize
3.4MB

MD5
9bdd1c5ea937ba1bd6048261b9b22716

SHA1
4a04c6354d78d6fe9ce6feded44e0836a7b015d1

SHA256
df1a12410cc49a0a2f1f7fcd130050e88678c1007610af4068c6459f40093959

SHA512
7cadb9a1ae7a60466b83495ecbb4c6c48f9c4a782a8636eb9e778edcbca87491292864d7f7750d185d9ced67669d17786b7bc64e0c620c9f8546b2ddc1a0ad40

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