wannacry | a35f1fb45698be16df064f19fd9094468a40dd902383f2474525725c3f43a1bc

General

Target

2024-11-12_87cf62485bb1d738392084638b830933_wannacry.exe
Size

5.0MB
MD5

87cf62485bb1d738392084638b830933
SHA1

9f3e565bd3f8c4e9d086b8969eb986b71d501b6a
SHA256

a35f1fb45698be16df064f19fd9094468a40dd902383f2474525725c3f43a1bc
SHA512

8dd0670ae5a45399c72bc788610e43a8d5d1c0910b73c57f098e2df8538de8db635cfbeab7aaaf245df44c692cd1d98007328b63e83db8650bc3157ec36a8f43
SSDEEP

24576:2bLgddQhfdmMSirYbcMNgef0ZqziNQtXX0o0PDCugrAHGO:2nAQqMSPbcBVZLNQtHX0PDCugrAHGO

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 (3147) 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
2324	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	2024-11-12_87cf62485bb1d738392084638b830933_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-11-12_87cf62485bb1d738392084638b830933_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	2024-11-12_87cf62485bb1d738392084638b830933_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-11-12_87cf62485bb1d738392084638b830933_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\d6-e1-6f-32-12-58	2024-11-12_87cf62485bb1d738392084638b830933_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E9384D65-AB08-4757-A8C9-11D9498AE428}\d6-e1-6f-32-12-58	2024-11-12_87cf62485bb1d738392084638b830933_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-11-12_87cf62485bb1d738392084638b830933_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-11-12_87cf62485bb1d738392084638b830933_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E9384D65-AB08-4757-A8C9-11D9498AE428}\WpadDecisionReason = "1"	2024-11-12_87cf62485bb1d738392084638b830933_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E9384D65-AB08-4757-A8C9-11D9498AE428}\WpadDecision = "0"	2024-11-12_87cf62485bb1d738392084638b830933_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E9384D65-AB08-4757-A8C9-11D9498AE428}\WpadNetworkName = "Network 3"	2024-11-12_87cf62485bb1d738392084638b830933_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E9384D65-AB08-4757-A8C9-11D9498AE428}	2024-11-12_87cf62485bb1d738392084638b830933_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E9384D65-AB08-4757-A8C9-11D9498AE428}\WpadDecisionTime = f07d11052835db01	2024-11-12_87cf62485bb1d738392084638b830933_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\d6-e1-6f-32-12-58\WpadDecision = "0"	2024-11-12_87cf62485bb1d738392084638b830933_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-11-12_87cf62485bb1d738392084638b830933_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-11-12_87cf62485bb1d738392084638b830933_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-11-12_87cf62485bb1d738392084638b830933_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-11-12_87cf62485bb1d738392084638b830933_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-11-12_87cf62485bb1d738392084638b830933_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-11-12_87cf62485bb1d738392084638b830933_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-11-12_87cf62485bb1d738392084638b830933_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-11-12_87cf62485bb1d738392084638b830933_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-11-12_87cf62485bb1d738392084638b830933_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f007a000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-11-12_87cf62485bb1d738392084638b830933_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-11-12_87cf62485bb1d738392084638b830933_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-11-12_87cf62485bb1d738392084638b830933_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\d6-e1-6f-32-12-58\WpadDecisionReason = "1"	2024-11-12_87cf62485bb1d738392084638b830933_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\d6-e1-6f-32-12-58\WpadDecisionTime = f07d11052835db01	2024-11-12_87cf62485bb1d738392084638b830933_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-11-12_87cf62485bb1d738392084638b830933_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-12_87cf62485bb1d738392084638b830933_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2116
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2324

C:\Users\Admin\AppData\Local\Temp\2024-11-12_87cf62485bb1d738392084638b830933_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-11-12_87cf62485bb1d738392084638b830933_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2184

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
ff420439145fdee4045e51d079d276b1

SHA1
6eaa685ad83a9fb6b64c6d342d0d937322358a8a

SHA256
b47913688df44fc915081a1532afbc89974e6c54e9d0e13559e7e6717765a35c

SHA512
ff783df9ae0f2d49f84e422d9aafe0f3c5e27994fd3fb94a0ba40d728bd7b9ed4f73e6e0e5f09a720932fc997c2bdfc481d83003773eb28d34d402f6ed2b1e25

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