wannacry | 2422b81785fda3d01c6cd551f93f1b5c17e4929ebfec6a84448ab29ea265c88e

General

Target

2024-10-03_4be0b1204894ac68869907044a41bf2c_wannacry.exe
Size

5.0MB
MD5

4be0b1204894ac68869907044a41bf2c
SHA1

7277c8cb366a89df5aa999a412ab44d3e15a4228
SHA256

2422b81785fda3d01c6cd551f93f1b5c17e4929ebfec6a84448ab29ea265c88e
SHA512

ae715d905628ef867e2b2d794162bd9912e8f8fbc5a751859e4c628cb650428cbd47e743cd1e1be38334aeb337ca00b9c8b155538d139a3a5aabb945bf8067c7
SSDEEP

49152:2nAQqMSPbchVQeD/1INRx+TSqTdX1HEQo6SAg9kXJhoq9zlLM:yDqPohhT1aRxcSUDE36SA2Whoq9zlLM

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3258) 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
2244	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	2024-10-03_4be0b1204894ac68869907044a41bf2c_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-10-03_4be0b1204894ac68869907044a41bf2c_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	2024-10-03_4be0b1204894ac68869907044a41bf2c_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-03_4be0b1204894ac68869907044a41bf2c_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:"	2024-10-03_4be0b1204894ac68869907044a41bf2c_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00e9000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-03_4be0b1204894ac68869907044a41bf2c_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E17F556E-6CCE-43C4-9277-B81CB987760F}\WpadDecisionReason = "1"	2024-10-03_4be0b1204894ac68869907044a41bf2c_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E17F556E-6CCE-43C4-9277-B81CB987760F}\WpadNetworkName = "Network 3"	2024-10-03_4be0b1204894ac68869907044a41bf2c_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\56-c5-ba-58-09-b8\WpadDecisionReason = "1"	2024-10-03_4be0b1204894ac68869907044a41bf2c_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\56-c5-ba-58-09-b8\WpadDecisionTime = d05ecdf67915db01	2024-10-03_4be0b1204894ac68869907044a41bf2c_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\56-c5-ba-58-09-b8\WpadDecision = "0"	2024-10-03_4be0b1204894ac68869907044a41bf2c_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-03_4be0b1204894ac68869907044a41bf2c_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-10-03_4be0b1204894ac68869907044a41bf2c_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-10-03_4be0b1204894ac68869907044a41bf2c_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-10-03_4be0b1204894ac68869907044a41bf2c_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E17F556E-6CCE-43C4-9277-B81CB987760F}\WpadDecisionTime = d05ecdf67915db01	2024-10-03_4be0b1204894ac68869907044a41bf2c_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E17F556E-6CCE-43C4-9277-B81CB987760F}\WpadDecision = "0"	2024-10-03_4be0b1204894ac68869907044a41bf2c_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E17F556E-6CCE-43C4-9277-B81CB987760F}\56-c5-ba-58-09-b8	2024-10-03_4be0b1204894ac68869907044a41bf2c_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-10-03_4be0b1204894ac68869907044a41bf2c_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-10-03_4be0b1204894ac68869907044a41bf2c_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-03_4be0b1204894ac68869907044a41bf2c_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-03_4be0b1204894ac68869907044a41bf2c_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-10-03_4be0b1204894ac68869907044a41bf2c_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-10-03_4be0b1204894ac68869907044a41bf2c_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E17F556E-6CCE-43C4-9277-B81CB987760F}	2024-10-03_4be0b1204894ac68869907044a41bf2c_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\56-c5-ba-58-09-b8	2024-10-03_4be0b1204894ac68869907044a41bf2c_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-03_4be0b1204894ac68869907044a41bf2c_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-10-03_4be0b1204894ac68869907044a41bf2c_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-10-03_4be0b1204894ac68869907044a41bf2c_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-03_4be0b1204894ac68869907044a41bf2c_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2532
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2244

C:\Users\Admin\AppData\Local\Temp\2024-10-03_4be0b1204894ac68869907044a41bf2c_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-10-03_4be0b1204894ac68869907044a41bf2c_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2568

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
aaf5cb4443cb81a8a472b8827ee8fc5f

SHA1
59b8ed93233d5664564ba9f48825e79c7a4f2da1

SHA256
2f8a8221a5b4747eaf7c8a7a581cd257d9c4ee65d52586b81236e61cfb6b5d04

SHA512
80ca129048b87ae3a51e99712583a314cafed82dafc86836522b118717860a878f12d5e581b56b46bc8af9825bf0d74619c8bb589fc5cb48568ddfaf06fa6f4b

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