wannacry | 272b1a05520b2b7fc39e7cf39d5fd1a88cd6b28360a8976ce48b9a6e43bf607f

General

Target

2025-01-24_2819d3c451a46c20a3c7889364ef8220_wannacry.exe
Size

3.6MB
MD5

2819d3c451a46c20a3c7889364ef8220
SHA1

42622a22b4a63d6bf8e69aaa93d436a48a7f0339
SHA256

272b1a05520b2b7fc39e7cf39d5fd1a88cd6b28360a8976ce48b9a6e43bf607f
SHA512

b31b8c53b758d9c9e21937317d5bda8e1bec0c1b449f64b25fd4b6dbe68fd492bb1b3f2c2fe374809ec562a8e45ecbd47f89b016d125b895419521e64961767c
SSDEEP

49152:2nAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAAChnvSl:yDqPoBhz1aRxcSUDk36SA/hvg

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 (3322) 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
2864	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	2025-01-24_2819d3c451a46c20a3c7889364ef8220_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2025-01-24_2819d3c451a46c20a3c7889364ef8220_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	2025-01-24_2819d3c451a46c20a3c7889364ef8220_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-24_2819d3c451a46c20a3c7889364ef8220_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 = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f005f000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-24_2819d3c451a46c20a3c7889364ef8220_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{266295FA-137C-4D95-BA8B-C4E80FC57F8A}	2025-01-24_2819d3c451a46c20a3c7889364ef8220_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{266295FA-137C-4D95-BA8B-C4E80FC57F8A}\WpadDecisionTime = 9078a022076edb01	2025-01-24_2819d3c451a46c20a3c7889364ef8220_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\c6-a5-44-dd-19-be	2025-01-24_2819d3c451a46c20a3c7889364ef8220_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2025-01-24_2819d3c451a46c20a3c7889364ef8220_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2025-01-24_2819d3c451a46c20a3c7889364ef8220_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2025-01-24_2819d3c451a46c20a3c7889364ef8220_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2025-01-24_2819d3c451a46c20a3c7889364ef8220_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2025-01-24_2819d3c451a46c20a3c7889364ef8220_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2025-01-24_2819d3c451a46c20a3c7889364ef8220_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\c6-a5-44-dd-19-be\WpadDecisionReason = "1"	2025-01-24_2819d3c451a46c20a3c7889364ef8220_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\c6-a5-44-dd-19-be\WpadDecisionTime = 9078a022076edb01	2025-01-24_2819d3c451a46c20a3c7889364ef8220_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\c6-a5-44-dd-19-be\WpadDecision = "0"	2025-01-24_2819d3c451a46c20a3c7889364ef8220_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-24_2819d3c451a46c20a3c7889364ef8220_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2025-01-24_2819d3c451a46c20a3c7889364ef8220_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{266295FA-137C-4D95-BA8B-C4E80FC57F8A}\WpadNetworkName = "Network 2"	2025-01-24_2819d3c451a46c20a3c7889364ef8220_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2025-01-24_2819d3c451a46c20a3c7889364ef8220_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2025-01-24_2819d3c451a46c20a3c7889364ef8220_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{266295FA-137C-4D95-BA8B-C4E80FC57F8A}\WpadDecisionReason = "1"	2025-01-24_2819d3c451a46c20a3c7889364ef8220_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{266295FA-137C-4D95-BA8B-C4E80FC57F8A}\WpadDecision = "0"	2025-01-24_2819d3c451a46c20a3c7889364ef8220_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{266295FA-137C-4D95-BA8B-C4E80FC57F8A}\c6-a5-44-dd-19-be	2025-01-24_2819d3c451a46c20a3c7889364ef8220_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2025-01-24_2819d3c451a46c20a3c7889364ef8220_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-24_2819d3c451a46c20a3c7889364ef8220_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2025-01-24_2819d3c451a46c20a3c7889364ef8220_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2025-01-24_2819d3c451a46c20a3c7889364ef8220_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-24_2819d3c451a46c20a3c7889364ef8220_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2988
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2864

C:\Users\Admin\AppData\Local\Temp\2025-01-24_2819d3c451a46c20a3c7889364ef8220_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2025-01-24_2819d3c451a46c20a3c7889364ef8220_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2932

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
6cba978f1fb06dd92b55d3d7bb27a41c

SHA1
bb2dffec19821bb4029d7efe2dd487fec0cd6b77

SHA256
5f346c9597294798a2653481e223c5a6c2a0569d64f389c24c289bc745a38a0c

SHA512
9800493590479bc009d3280b7b085eb47291196bb34c53fe2abbb7d4ece7f5a1610ccaf81e829df0119c8f559c6192321523005f3a396b1ce4fdd43d2c9d16dd

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