wannacry | af409c38bf76fa5c2a63d85e197e78989d17a1eba622cb2125d95b29175fe921

General

Target

2024-11-08_e8b4d6af6135bcd9ec18ba9ba03ad144_wannacry.exe
Size

3.6MB
MD5

e8b4d6af6135bcd9ec18ba9ba03ad144
SHA1

a822107296cea8606a1350586310ce356658a838
SHA256

af409c38bf76fa5c2a63d85e197e78989d17a1eba622cb2125d95b29175fe921
SHA512

3d82c812d5311089ee8f26c7129bd7ecf00b40a96c785beb748b392cf1b1a58aaa15082e93492e708120a2c3edc315842e89a71459e1988f36a61fbe719070ab
SSDEEP

49152:XnAQqMSPbcBVQej/1Y7wSY88toex6jHaeCng:XDqPoBhz1YyE

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 (2934) 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
2772	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	2024-11-08_e8b4d6af6135bcd9ec18ba9ba03ad144_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-11-08_e8b4d6af6135bcd9ec18ba9ba03ad144_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	2024-11-08_e8b4d6af6135bcd9ec18ba9ba03ad144_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-11-08_e8b4d6af6135bcd9ec18ba9ba03ad144_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{D564F11B-B021-46C0-917B-4F7F97C88A01}\4a-10-70-cb-0d-97	2024-11-08_e8b4d6af6135bcd9ec18ba9ba03ad144_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4a-10-70-cb-0d-97\WpadDecisionReason = "1"	2024-11-08_e8b4d6af6135bcd9ec18ba9ba03ad144_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-11-08_e8b4d6af6135bcd9ec18ba9ba03ad144_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-11-08_e8b4d6af6135bcd9ec18ba9ba03ad144_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{D564F11B-B021-46C0-917B-4F7F97C88A01}\WpadNetworkName = "Network 3"	2024-11-08_e8b4d6af6135bcd9ec18ba9ba03ad144_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-11-08_e8b4d6af6135bcd9ec18ba9ba03ad144_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-11-08_e8b4d6af6135bcd9ec18ba9ba03ad144_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-11-08_e8b4d6af6135bcd9ec18ba9ba03ad144_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-11-08_e8b4d6af6135bcd9ec18ba9ba03ad144_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4a-10-70-cb-0d-97	2024-11-08_e8b4d6af6135bcd9ec18ba9ba03ad144_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4a-10-70-cb-0d-97\WpadDecisionTime = c090f1f5f431db01	2024-11-08_e8b4d6af6135bcd9ec18ba9ba03ad144_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4a-10-70-cb-0d-97\WpadDecision = "0"	2024-11-08_e8b4d6af6135bcd9ec18ba9ba03ad144_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-11-08_e8b4d6af6135bcd9ec18ba9ba03ad144_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-11-08_e8b4d6af6135bcd9ec18ba9ba03ad144_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00d4000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-11-08_e8b4d6af6135bcd9ec18ba9ba03ad144_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-11-08_e8b4d6af6135bcd9ec18ba9ba03ad144_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-11-08_e8b4d6af6135bcd9ec18ba9ba03ad144_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{D564F11B-B021-46C0-917B-4F7F97C88A01}	2024-11-08_e8b4d6af6135bcd9ec18ba9ba03ad144_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{D564F11B-B021-46C0-917B-4F7F97C88A01}\WpadDecisionReason = "1"	2024-11-08_e8b4d6af6135bcd9ec18ba9ba03ad144_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{D564F11B-B021-46C0-917B-4F7F97C88A01}\WpadDecisionTime = c090f1f5f431db01	2024-11-08_e8b4d6af6135bcd9ec18ba9ba03ad144_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-11-08_e8b4d6af6135bcd9ec18ba9ba03ad144_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-11-08_e8b4d6af6135bcd9ec18ba9ba03ad144_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-11-08_e8b4d6af6135bcd9ec18ba9ba03ad144_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{D564F11B-B021-46C0-917B-4F7F97C88A01}\WpadDecision = "0"	2024-11-08_e8b4d6af6135bcd9ec18ba9ba03ad144_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-11-08_e8b4d6af6135bcd9ec18ba9ba03ad144_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-08_e8b4d6af6135bcd9ec18ba9ba03ad144_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2196
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2772

C:\Users\Admin\AppData\Local\Temp\2024-11-08_e8b4d6af6135bcd9ec18ba9ba03ad144_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-11-08_e8b4d6af6135bcd9ec18ba9ba03ad144_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2384

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
bd8662385111773beaa1b4789de7a3b8

SHA1
d781164038511413477c3620678faf610872e78b

SHA256
5800943be27fd096739f2478062b7326ca93ec0f192290c01c09f51597d81c05

SHA512
e7a113202f8c6b299b5cd22f1c7e92bf0a23d03d6cbd47ef9cc7dabb9e21205cc9d4ce702201deba03fb6c676f76bad0b5da3c157ea5ad9adf82585c898e85e2

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Analysis

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