wannacry | 23692ce778172a66ef666ae4ad47f7cd0773271360ef7503fb294b446cb6d0a5

General

Target

2024-09-06_cc7ea6ad93542f9a60fc17c1a2ba6053_wannacry.exe
Size

5.0MB
MD5

cc7ea6ad93542f9a60fc17c1a2ba6053
SHA1

0b08ff633ae892cc398ac04e987d5830e7440a9a
SHA256

23692ce778172a66ef666ae4ad47f7cd0773271360ef7503fb294b446cb6d0a5
SHA512

66a364bc8a632441c9b596d7a42fa613f09127d0d72fbab6bfb24ed5bceb90f5a02fef3f4e7561d09fd8b7590c9e3da71327bc190f88ec824d1a3f68d6e0ac39
SSDEEP

49152:2nAQqMSPbcBVnQo6SAARdhnvxJM0H9PAMEcaEau3R8yAH1plAH:yDqPoBp36SAEdhvxWa9P593R8yAVp2H

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3286) 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
2084	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	2024-09-06_cc7ea6ad93542f9a60fc17c1a2ba6053_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-09-06_cc7ea6ad93542f9a60fc17c1a2ba6053_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	2024-09-06_cc7ea6ad93542f9a60fc17c1a2ba6053_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-06_cc7ea6ad93542f9a60fc17c1a2ba6053_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-09-06_cc7ea6ad93542f9a60fc17c1a2ba6053_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-09-06_cc7ea6ad93542f9a60fc17c1a2ba6053_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{7C11F2EF-6659-476B-979C-736A5CBDB2BE}\WpadDecisionTime = 4005da3a5000db01	2024-09-06_cc7ea6ad93542f9a60fc17c1a2ba6053_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\c2-b8-5d-2d-c5-20\WpadDecision = "0"	2024-09-06_cc7ea6ad93542f9a60fc17c1a2ba6053_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-09-06_cc7ea6ad93542f9a60fc17c1a2ba6053_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-06_cc7ea6ad93542f9a60fc17c1a2ba6053_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-09-06_cc7ea6ad93542f9a60fc17c1a2ba6053_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{7C11F2EF-6659-476B-979C-736A5CBDB2BE}\WpadNetworkName = "Network 3"	2024-09-06_cc7ea6ad93542f9a60fc17c1a2ba6053_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-06_cc7ea6ad93542f9a60fc17c1a2ba6053_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-06_cc7ea6ad93542f9a60fc17c1a2ba6053_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-09-06_cc7ea6ad93542f9a60fc17c1a2ba6053_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-09-06_cc7ea6ad93542f9a60fc17c1a2ba6053_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00ba000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-06_cc7ea6ad93542f9a60fc17c1a2ba6053_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{7C11F2EF-6659-476B-979C-736A5CBDB2BE}	2024-09-06_cc7ea6ad93542f9a60fc17c1a2ba6053_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{7C11F2EF-6659-476B-979C-736A5CBDB2BE}\WpadDecisionReason = "1"	2024-09-06_cc7ea6ad93542f9a60fc17c1a2ba6053_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\c2-b8-5d-2d-c5-20	2024-09-06_cc7ea6ad93542f9a60fc17c1a2ba6053_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-06_cc7ea6ad93542f9a60fc17c1a2ba6053_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-09-06_cc7ea6ad93542f9a60fc17c1a2ba6053_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-09-06_cc7ea6ad93542f9a60fc17c1a2ba6053_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{7C11F2EF-6659-476B-979C-736A5CBDB2BE}\WpadDecision = "0"	2024-09-06_cc7ea6ad93542f9a60fc17c1a2ba6053_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{7C11F2EF-6659-476B-979C-736A5CBDB2BE}\c2-b8-5d-2d-c5-20	2024-09-06_cc7ea6ad93542f9a60fc17c1a2ba6053_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\c2-b8-5d-2d-c5-20\WpadDecisionReason = "1"	2024-09-06_cc7ea6ad93542f9a60fc17c1a2ba6053_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\c2-b8-5d-2d-c5-20\WpadDecisionTime = 4005da3a5000db01	2024-09-06_cc7ea6ad93542f9a60fc17c1a2ba6053_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-09-06_cc7ea6ad93542f9a60fc17c1a2ba6053_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-09-06_cc7ea6ad93542f9a60fc17c1a2ba6053_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-06_cc7ea6ad93542f9a60fc17c1a2ba6053_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2248
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2084

C:\Users\Admin\AppData\Local\Temp\2024-09-06_cc7ea6ad93542f9a60fc17c1a2ba6053_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-09-06_cc7ea6ad93542f9a60fc17c1a2ba6053_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2488

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
6e37fdb5ec816c0364824d55c2c69deb

SHA1
b96103ed7d24f8f7c1a3fe18df397f86ac7b99f5

SHA256
f90b496070a1c28b590687d692f9cd763f3a6d3f9528dbc63172c4e3d7a91b27

SHA512
727a2589cc9cc4431ea28767a70cbbc3fc3a1258a3b464cef5a3219ae0c93584600a4127715cc52f3b01435595c2cc6e496109bf8c98b68e79cc7f28371f591a

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