wannacry | 861a5d16e5e3ed14acd291b0b8726ddbd3accfccc48c051ad6155c2ac010d6f4

General

Target

2025-01-27_dc9027db8ffbd7789f1ab3cffbbb7c74_wannacry.exe
Size

3.6MB
MD5

dc9027db8ffbd7789f1ab3cffbbb7c74
SHA1

d2e6d54aafda269e628c9678e8f5008552a23905
SHA256

861a5d16e5e3ed14acd291b0b8726ddbd3accfccc48c051ad6155c2ac010d6f4
SHA512

eb12606c0818a01cb472999828df2428f251f9caff6b6177bc222ab6f3cf66b6a99d9783dae8e65ea8d334e5e1349b180d32213b49b25b9cdad606aa69da164d
SSDEEP

49152:2nAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAA4hnvxJM0H9PAMEcaEau:yDqPoBhz1aRxcSUDk36SABhvxWa9P59

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 (3307) 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
2408	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	2025-01-27_dc9027db8ffbd7789f1ab3cffbbb7c74_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2025-01-27_dc9027db8ffbd7789f1ab3cffbbb7c74_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	2025-01-27_dc9027db8ffbd7789f1ab3cffbbb7c74_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-27_dc9027db8ffbd7789f1ab3cffbbb7c74_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{1FC23475-B648-428F-8A0F-1B7FECD9C553}\WpadDecisionTime = 90b3971a6c70db01	2025-01-27_dc9027db8ffbd7789f1ab3cffbbb7c74_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{1FC23475-B648-428F-8A0F-1B7FECD9C553}\06-79-44-18-ed-8c	2025-01-27_dc9027db8ffbd7789f1ab3cffbbb7c74_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2025-01-27_dc9027db8ffbd7789f1ab3cffbbb7c74_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2025-01-27_dc9027db8ffbd7789f1ab3cffbbb7c74_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2025-01-27_dc9027db8ffbd7789f1ab3cffbbb7c74_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2025-01-27_dc9027db8ffbd7789f1ab3cffbbb7c74_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{1FC23475-B648-428F-8A0F-1B7FECD9C553}	2025-01-27_dc9027db8ffbd7789f1ab3cffbbb7c74_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{1FC23475-B648-428F-8A0F-1B7FECD9C553}\WpadDecisionReason = "1"	2025-01-27_dc9027db8ffbd7789f1ab3cffbbb7c74_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2025-01-27_dc9027db8ffbd7789f1ab3cffbbb7c74_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\06-79-44-18-ed-8c\WpadDecisionReason = "1"	2025-01-27_dc9027db8ffbd7789f1ab3cffbbb7c74_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\06-79-44-18-ed-8c\WpadDecision = "0"	2025-01-27_dc9027db8ffbd7789f1ab3cffbbb7c74_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2025-01-27_dc9027db8ffbd7789f1ab3cffbbb7c74_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2025-01-27_dc9027db8ffbd7789f1ab3cffbbb7c74_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2025-01-27_dc9027db8ffbd7789f1ab3cffbbb7c74_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{1FC23475-B648-428F-8A0F-1B7FECD9C553}\WpadDecision = "0"	2025-01-27_dc9027db8ffbd7789f1ab3cffbbb7c74_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{1FC23475-B648-428F-8A0F-1B7FECD9C553}\WpadNetworkName = "Network 3"	2025-01-27_dc9027db8ffbd7789f1ab3cffbbb7c74_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\06-79-44-18-ed-8c	2025-01-27_dc9027db8ffbd7789f1ab3cffbbb7c74_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\06-79-44-18-ed-8c\WpadDecisionTime = 90b3971a6c70db01	2025-01-27_dc9027db8ffbd7789f1ab3cffbbb7c74_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2025-01-27_dc9027db8ffbd7789f1ab3cffbbb7c74_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-27_dc9027db8ffbd7789f1ab3cffbbb7c74_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2025-01-27_dc9027db8ffbd7789f1ab3cffbbb7c74_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-27_dc9027db8ffbd7789f1ab3cffbbb7c74_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2025-01-27_dc9027db8ffbd7789f1ab3cffbbb7c74_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00b7000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-27_dc9027db8ffbd7789f1ab3cffbbb7c74_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2025-01-27_dc9027db8ffbd7789f1ab3cffbbb7c74_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-27_dc9027db8ffbd7789f1ab3cffbbb7c74_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2848
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2408

C:\Users\Admin\AppData\Local\Temp\2025-01-27_dc9027db8ffbd7789f1ab3cffbbb7c74_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2025-01-27_dc9027db8ffbd7789f1ab3cffbbb7c74_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2316

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
42e2e3bb7d23af2bd402aa8ffe89eacc

SHA1
2224257216d3168798c7782e668de7ca2f3a8554

SHA256
016d016763f10051b7fc280f144beca5e64fed102fb605fe1adf129e21803ae9

SHA512
e281fb4e7f16e68505a49c4fd9c8bf8e1dc18528d74eaf27e33acac1d8f18e90b0615120913c54eb72ad36d43672a62cd75a721af3961cb8a151956d8780fb6b

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Analysis

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