wannacry | 8668430e7a309d5377fc12f3e9917202df70a30bdd3d28b0d47f48ac70294121

General

Target

2025-03-25_007ac0bee86c0da5cab9da8d15ba9682_wannacry.exe
Size

5.0MB
MD5

007ac0bee86c0da5cab9da8d15ba9682
SHA1

7cc102d3199eb4c054091dd6b24afdb300283eba
SHA256

8668430e7a309d5377fc12f3e9917202df70a30bdd3d28b0d47f48ac70294121
SHA512

9ede5dc49a5105d5297aa206658566e52c4075d1ed551d3829d2ae1db27d6f0df289a6a5c3190eb96a28dfa5de2297bfa89b113f3d6433b7704c20c37a48288d
SSDEEP

49152:XnAQqMSPbcBVQej/1INRx+TSqTdX1HkQYAARdhnv3AMEcaEau3mAH:XDqPoBhz1aRxcSUDkVAEdhv3593vH

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 (3285) 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
792	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	2025-03-25_007ac0bee86c0da5cab9da8d15ba9682_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2025-03-25_007ac0bee86c0da5cab9da8d15ba9682_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	2025-03-25_007ac0bee86c0da5cab9da8d15ba9682_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-03-25_007ac0bee86c0da5cab9da8d15ba9682_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2025-03-25_007ac0bee86c0da5cab9da8d15ba9682_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0a-b2-d5-76-d1-c9\WpadDecisionReason = "1"	2025-03-25_007ac0bee86c0da5cab9da8d15ba9682_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2025-03-25_007ac0bee86c0da5cab9da8d15ba9682_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-03-25_007ac0bee86c0da5cab9da8d15ba9682_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2025-03-25_007ac0bee86c0da5cab9da8d15ba9682_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2025-03-25_007ac0bee86c0da5cab9da8d15ba9682_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2025-03-25_007ac0bee86c0da5cab9da8d15ba9682_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A7443692-E514-43B5-B715-15866F785080}\WpadDecisionReason = "1"	2025-03-25_007ac0bee86c0da5cab9da8d15ba9682_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0a-b2-d5-76-d1-c9\WpadDecisionTime = f001b794c49ddb01	2025-03-25_007ac0bee86c0da5cab9da8d15ba9682_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2025-03-25_007ac0bee86c0da5cab9da8d15ba9682_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-03-25_007ac0bee86c0da5cab9da8d15ba9682_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2025-03-25_007ac0bee86c0da5cab9da8d15ba9682_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0127000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-03-25_007ac0bee86c0da5cab9da8d15ba9682_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A7443692-E514-43B5-B715-15866F785080}	2025-03-25_007ac0bee86c0da5cab9da8d15ba9682_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A7443692-E514-43B5-B715-15866F785080}\WpadNetworkName = "Network 3"	2025-03-25_007ac0bee86c0da5cab9da8d15ba9682_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0a-b2-d5-76-d1-c9	2025-03-25_007ac0bee86c0da5cab9da8d15ba9682_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0a-b2-d5-76-d1-c9\WpadDecision = "0"	2025-03-25_007ac0bee86c0da5cab9da8d15ba9682_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2025-03-25_007ac0bee86c0da5cab9da8d15ba9682_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2025-03-25_007ac0bee86c0da5cab9da8d15ba9682_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2025-03-25_007ac0bee86c0da5cab9da8d15ba9682_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A7443692-E514-43B5-B715-15866F785080}\WpadDecisionTime = f001b794c49ddb01	2025-03-25_007ac0bee86c0da5cab9da8d15ba9682_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A7443692-E514-43B5-B715-15866F785080}\WpadDecision = "0"	2025-03-25_007ac0bee86c0da5cab9da8d15ba9682_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A7443692-E514-43B5-B715-15866F785080}\0a-b2-d5-76-d1-c9	2025-03-25_007ac0bee86c0da5cab9da8d15ba9682_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2025-03-25_007ac0bee86c0da5cab9da8d15ba9682_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2025-03-25_007ac0bee86c0da5cab9da8d15ba9682_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2025-03-25_007ac0bee86c0da5cab9da8d15ba9682_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2564
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:792

C:\Users\Admin\AppData\Local\Temp\2025-03-25_007ac0bee86c0da5cab9da8d15ba9682_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2025-03-25_007ac0bee86c0da5cab9da8d15ba9682_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2920

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
d55402285af3a6c473a1cc93ff06c5d6

SHA1
8737cf777a899ca5cdc403d6685c84dcd0fe017f

SHA256
01403fa620ef8b97455640eb8a71a9f31a666148ef51e10d2b1b1cf13f0f0497

SHA512
81b153363d85e2e9b0ac50628e676317168d12a74f79aeef76f31096dab3d9101a6fa79bad63336335713209ad7ae4a8c52f83323528e49804baa1e602d8864b

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