wannacry | df5ad668b846ad5a7e12bb165bebd8688328e5f8fe12744bbf19bd119cec0221

General

Target

2025-01-16_a4aabf7da31774b54d65373e3364fe3c_wannacry.exe
Size

3.6MB
MD5

a4aabf7da31774b54d65373e3364fe3c
SHA1

c810d1e778877cfef64e3da1d15cc09ad73ffc1a
SHA256

df5ad668b846ad5a7e12bb165bebd8688328e5f8fe12744bbf19bd119cec0221
SHA512

728c9518e6bfbb999117cdef4f3d892505d743d8350d5f2a26c1ae339b0cc14c339481d387fba35e99aded8065f4d08af71ed523c1fb4585cf8f26d18c9a0c4d
SSDEEP

49152:XnAQqMSPbcBVQKxJM0H9PAMEcaEau3R8yAH1plAH:XDqPoBHxWa9P593R8yAVp2H

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 (3195) 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
564	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	2025-01-16_a4aabf7da31774b54d65373e3364fe3c_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2025-01-16_a4aabf7da31774b54d65373e3364fe3c_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	2025-01-16_a4aabf7da31774b54d65373e3364fe3c_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-16_a4aabf7da31774b54d65373e3364fe3c_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\{ECCB368C-2ACD-4C95-8D23-3AE13CFBD4A1}\WpadDecisionTime = 80da9b72c067db01	2025-01-16_a4aabf7da31774b54d65373e3364fe3c_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ce-8d-06-b5-65-54	2025-01-16_a4aabf7da31774b54d65373e3364fe3c_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ce-8d-06-b5-65-54\WpadDecisionReason = "1"	2025-01-16_a4aabf7da31774b54d65373e3364fe3c_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2025-01-16_a4aabf7da31774b54d65373e3364fe3c_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2025-01-16_a4aabf7da31774b54d65373e3364fe3c_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2025-01-16_a4aabf7da31774b54d65373e3364fe3c_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2025-01-16_a4aabf7da31774b54d65373e3364fe3c_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{ECCB368C-2ACD-4C95-8D23-3AE13CFBD4A1}\WpadDecision = "0"	2025-01-16_a4aabf7da31774b54d65373e3364fe3c_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{ECCB368C-2ACD-4C95-8D23-3AE13CFBD4A1}\WpadNetworkName = "Network 3"	2025-01-16_a4aabf7da31774b54d65373e3364fe3c_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ce-8d-06-b5-65-54\WpadDecisionTime = 80da9b72c067db01	2025-01-16_a4aabf7da31774b54d65373e3364fe3c_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2025-01-16_a4aabf7da31774b54d65373e3364fe3c_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2025-01-16_a4aabf7da31774b54d65373e3364fe3c_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2025-01-16_a4aabf7da31774b54d65373e3364fe3c_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00ba000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-16_a4aabf7da31774b54d65373e3364fe3c_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ce-8d-06-b5-65-54\WpadDecision = "0"	2025-01-16_a4aabf7da31774b54d65373e3364fe3c_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-16_a4aabf7da31774b54d65373e3364fe3c_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2025-01-16_a4aabf7da31774b54d65373e3364fe3c_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{ECCB368C-2ACD-4C95-8D23-3AE13CFBD4A1}	2025-01-16_a4aabf7da31774b54d65373e3364fe3c_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{ECCB368C-2ACD-4C95-8D23-3AE13CFBD4A1}\ce-8d-06-b5-65-54	2025-01-16_a4aabf7da31774b54d65373e3364fe3c_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{ECCB368C-2ACD-4C95-8D23-3AE13CFBD4A1}\WpadDecisionReason = "1"	2025-01-16_a4aabf7da31774b54d65373e3364fe3c_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2025-01-16_a4aabf7da31774b54d65373e3364fe3c_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2025-01-16_a4aabf7da31774b54d65373e3364fe3c_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-16_a4aabf7da31774b54d65373e3364fe3c_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2025-01-16_a4aabf7da31774b54d65373e3364fe3c_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2025-01-16_a4aabf7da31774b54d65373e3364fe3c_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-16_a4aabf7da31774b54d65373e3364fe3c_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2296
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:564

C:\Users\Admin\AppData\Local\Temp\2025-01-16_a4aabf7da31774b54d65373e3364fe3c_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2025-01-16_a4aabf7da31774b54d65373e3364fe3c_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:3004

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
939f68fc954012fadc388bde86f15690

SHA1
6a98ba0cdca755b8ad9f61e71d94e0f1f336ea0e

SHA256
32d39e7a149a1a9783596b4c14a9f48e6415d1814cafac6fa1fdcf63c356d260

SHA512
a65ac5ab0e1af9c6e0671e99ccfa20801db2a6acb191f6f619d67697367a66261773d8263164b667025d4168c03f1e906555aac72599d0cfba7ac9d6f96c8dfe

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