wannacry | cb0ca2bcbb71837282b0c0391450a71c3d3e6b106cad8d8adb8bc62c5b708e81

General

Target

2024-11-06_90f608648d985d5e2a2bffe249fc289d_wannacry.exe
Size

3.6MB
MD5

90f608648d985d5e2a2bffe249fc289d
SHA1

ec9a805a403c9c3c0ebdc72976f1bb07c564818b
SHA256

cb0ca2bcbb71837282b0c0391450a71c3d3e6b106cad8d8adb8bc62c5b708e81
SHA512

ad4d3feb9e14ddcd707c375de28b30919a8f3f9b26095a97fda2146cc2030f77e0d83380f758e7651ee652625fe8ec6c8f463d8c1dbe9a3e149e5875115ca5e4
SSDEEP

98304:yWqPoBhz1aP6SAEdhvxWa9P593R8yAVp2HI:yWqPe1EZAEUadzR8yc4HI

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 (3308) 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
2836	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	2024-11-06_90f608648d985d5e2a2bffe249fc289d_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-11-06_90f608648d985d5e2a2bffe249fc289d_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	2024-11-06_90f608648d985d5e2a2bffe249fc289d_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-11-06_90f608648d985d5e2a2bffe249fc289d_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00fa000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-11-06_90f608648d985d5e2a2bffe249fc289d_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3326A172-8694-4A10-8B22-30CCE1B66BAA}\WpadDecisionTime = c04bc2fe2f30db01	2024-11-06_90f608648d985d5e2a2bffe249fc289d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-11-06_90f608648d985d5e2a2bffe249fc289d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-11-06_90f608648d985d5e2a2bffe249fc289d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-11-06_90f608648d985d5e2a2bffe249fc289d_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-11-06_90f608648d985d5e2a2bffe249fc289d_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-11-06_90f608648d985d5e2a2bffe249fc289d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-11-06_90f608648d985d5e2a2bffe249fc289d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3326A172-8694-4A10-8B22-30CCE1B66BAA}\26-51-66-76-0b-0e	2024-11-06_90f608648d985d5e2a2bffe249fc289d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-11-06_90f608648d985d5e2a2bffe249fc289d_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-11-06_90f608648d985d5e2a2bffe249fc289d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3326A172-8694-4A10-8B22-30CCE1B66BAA}	2024-11-06_90f608648d985d5e2a2bffe249fc289d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3326A172-8694-4A10-8B22-30CCE1B66BAA}\WpadDecisionReason = "1"	2024-11-06_90f608648d985d5e2a2bffe249fc289d_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3326A172-8694-4A10-8B22-30CCE1B66BAA}\WpadNetworkName = "Network 3"	2024-11-06_90f608648d985d5e2a2bffe249fc289d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-11-06_90f608648d985d5e2a2bffe249fc289d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-11-06_90f608648d985d5e2a2bffe249fc289d_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-11-06_90f608648d985d5e2a2bffe249fc289d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-11-06_90f608648d985d5e2a2bffe249fc289d_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-11-06_90f608648d985d5e2a2bffe249fc289d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\26-51-66-76-0b-0e\WpadDecisionReason = "1"	2024-11-06_90f608648d985d5e2a2bffe249fc289d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3326A172-8694-4A10-8B22-30CCE1B66BAA}\WpadDecision = "0"	2024-11-06_90f608648d985d5e2a2bffe249fc289d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\26-51-66-76-0b-0e	2024-11-06_90f608648d985d5e2a2bffe249fc289d_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\26-51-66-76-0b-0e\WpadDecisionTime = c04bc2fe2f30db01	2024-11-06_90f608648d985d5e2a2bffe249fc289d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\26-51-66-76-0b-0e\WpadDecision = "0"	2024-11-06_90f608648d985d5e2a2bffe249fc289d_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-11-06_90f608648d985d5e2a2bffe249fc289d_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-06_90f608648d985d5e2a2bffe249fc289d_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2132
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2836

C:\Users\Admin\AppData\Local\Temp\2024-11-06_90f608648d985d5e2a2bffe249fc289d_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-11-06_90f608648d985d5e2a2bffe249fc289d_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2684

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
db0dc3e4c89ad8a7744c09b78b7032fa

SHA1
67ae5404d5ceb17fa752bcdd20d6f0690f878321

SHA256
c9f422bdf621d4ece515813b28459d0a016e94a03a0ef223cf46a2cc475152c4

SHA512
4d82b246e699ba763ace97ab4acaaf04c3ae8327bcfec6658e114c040d0ec87be4251ba2328b686515690591812e1cd1f16497b5e365035af5003b716d17fb49

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