wannacry | 45c169c28b66a62f66b15163a0a2e8094664416012e903666198ac269e41b8c6

General

Target

2024-10-12_44997cba95dc1f01c9fc58319ce693b8_wannacry.exe
Size

3.6MB
MD5

44997cba95dc1f01c9fc58319ce693b8
SHA1

58f253041c2f86249625023626050c00f5abccfa
SHA256

45c169c28b66a62f66b15163a0a2e8094664416012e903666198ac269e41b8c6
SHA512

2206c06cc1c9a21a4f2a7350f20341357763060f04f54e008e06ad114e1406971d055eac658fc78127c62f5c9227d4ef65fa863293e9bb21f28bc40e4f90e55a
SSDEEP

98304:yDqPoBhz1aRxcSUDk36SAEdhvxWqP593R8yAVp2Y:yDqPe1Cxcxk3ZAEUUzR8yc4Y

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3275) 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
2884	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	2024-10-12_44997cba95dc1f01c9fc58319ce693b8_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-10-12_44997cba95dc1f01c9fc58319ce693b8_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	2024-10-12_44997cba95dc1f01c9fc58319ce693b8_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-12_44997cba95dc1f01c9fc58319ce693b8_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\b6-ca-8c-1d-5e-f7	2024-10-12_44997cba95dc1f01c9fc58319ce693b8_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_44997cba95dc1f01c9fc58319ce693b8_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-12_44997cba95dc1f01c9fc58319ce693b8_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-10-12_44997cba95dc1f01c9fc58319ce693b8_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-10-12_44997cba95dc1f01c9fc58319ce693b8_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{5E873AE7-AAFD-4933-A723-564B0657B038}\WpadDecisionTime = 5044e0ad571cdb01	2024-10-12_44997cba95dc1f01c9fc58319ce693b8_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{5E873AE7-AAFD-4933-A723-564B0657B038}\WpadDecision = "0"	2024-10-12_44997cba95dc1f01c9fc58319ce693b8_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{5E873AE7-AAFD-4933-A723-564B0657B038}\WpadNetworkName = "Network 3"	2024-10-12_44997cba95dc1f01c9fc58319ce693b8_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-12_44997cba95dc1f01c9fc58319ce693b8_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{5E873AE7-AAFD-4933-A723-564B0657B038}	2024-10-12_44997cba95dc1f01c9fc58319ce693b8_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{5E873AE7-AAFD-4933-A723-564B0657B038}\b6-ca-8c-1d-5e-f7	2024-10-12_44997cba95dc1f01c9fc58319ce693b8_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\b6-ca-8c-1d-5e-f7\WpadDecisionTime = 5044e0ad571cdb01	2024-10-12_44997cba95dc1f01c9fc58319ce693b8_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-10-12_44997cba95dc1f01c9fc58319ce693b8_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-10-12_44997cba95dc1f01c9fc58319ce693b8_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-10-12_44997cba95dc1f01c9fc58319ce693b8_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-10-12_44997cba95dc1f01c9fc58319ce693b8_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-10-12_44997cba95dc1f01c9fc58319ce693b8_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_44997cba95dc1f01c9fc58319ce693b8_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-10-12_44997cba95dc1f01c9fc58319ce693b8_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-10-12_44997cba95dc1f01c9fc58319ce693b8_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00b9000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_44997cba95dc1f01c9fc58319ce693b8_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{5E873AE7-AAFD-4933-A723-564B0657B038}\WpadDecisionReason = "1"	2024-10-12_44997cba95dc1f01c9fc58319ce693b8_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\b6-ca-8c-1d-5e-f7\WpadDecisionReason = "1"	2024-10-12_44997cba95dc1f01c9fc58319ce693b8_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\b6-ca-8c-1d-5e-f7\WpadDecision = "0"	2024-10-12_44997cba95dc1f01c9fc58319ce693b8_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-10-12_44997cba95dc1f01c9fc58319ce693b8_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-12_44997cba95dc1f01c9fc58319ce693b8_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:3052
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2884

C:\Users\Admin\AppData\Local\Temp\2024-10-12_44997cba95dc1f01c9fc58319ce693b8_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-10-12_44997cba95dc1f01c9fc58319ce693b8_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2840

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
9df9b3e32b56a26c432d70b00731825c

SHA1
a6378d9313bd5c035764892ec6804d89baefcf42

SHA256
10215ca5b3f9e0a9c9f2a960d0175112f78c54be5f030f13a55f881942ab59cb

SHA512
951dc97c885924db1e0f09804215dad1cc411c031672efc6d14aacf82dbce20cb7cae54513e655cd07d399c0511e23e034a8d6484e10ff7fe0d32ade6ba35092

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