wannacry | da9fc4c5c714acb4e38ad1335b53c24247aef4f872a26d6ed41236300c997884

General

Target

2025-02-21_1ae474ee2178faef068d734ca3bf8626_wannacry.exe
Size

5.0MB
MD5

1ae474ee2178faef068d734ca3bf8626
SHA1

8b4148234b925b1ad6543d34b4f29650917ebbbe
SHA256

da9fc4c5c714acb4e38ad1335b53c24247aef4f872a26d6ed41236300c997884
SHA512

837b09a7cf6952cb67e4945b24927cf707d4d5bd461f44cc71f32ff39d07dee66b10aaf56437ca6f7daf9c5ff1af3a3fcd01f6bc8fa0f085ce88ad5befeaab41
SSDEEP

98304:XDqPoBhz1aRxcSUDk36SAEdhvxWa9P5OQ:XDqPe1Cxcxk3ZAEUadIQ

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 (3182) 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
2720	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	2025-02-21_1ae474ee2178faef068d734ca3bf8626_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2025-02-21_1ae474ee2178faef068d734ca3bf8626_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	2025-02-21_1ae474ee2178faef068d734ca3bf8626_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-21_1ae474ee2178faef068d734ca3bf8626_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{92F7C9E8-F056-4FBA-A791-4147CB7B9EE2}\WpadDecision = "0"	2025-02-21_1ae474ee2178faef068d734ca3bf8626_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4a-ca-24-3b-ab-ef	2025-02-21_1ae474ee2178faef068d734ca3bf8626_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2025-02-21_1ae474ee2178faef068d734ca3bf8626_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2025-02-21_1ae474ee2178faef068d734ca3bf8626_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2025-02-21_1ae474ee2178faef068d734ca3bf8626_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{92F7C9E8-F056-4FBA-A791-4147CB7B9EE2}	2025-02-21_1ae474ee2178faef068d734ca3bf8626_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{92F7C9E8-F056-4FBA-A791-4147CB7B9EE2}\WpadDecisionTime = 104903490384db01	2025-02-21_1ae474ee2178faef068d734ca3bf8626_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{92F7C9E8-F056-4FBA-A791-4147CB7B9EE2}\WpadNetworkName = "Network 3"	2025-02-21_1ae474ee2178faef068d734ca3bf8626_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4a-ca-24-3b-ab-ef\WpadDecisionReason = "1"	2025-02-21_1ae474ee2178faef068d734ca3bf8626_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4a-ca-24-3b-ab-ef\WpadDecision = "0"	2025-02-21_1ae474ee2178faef068d734ca3bf8626_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-02-21_1ae474ee2178faef068d734ca3bf8626_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2025-02-21_1ae474ee2178faef068d734ca3bf8626_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2025-02-21_1ae474ee2178faef068d734ca3bf8626_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2025-02-21_1ae474ee2178faef068d734ca3bf8626_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{92F7C9E8-F056-4FBA-A791-4147CB7B9EE2}\4a-ca-24-3b-ab-ef	2025-02-21_1ae474ee2178faef068d734ca3bf8626_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4a-ca-24-3b-ab-ef\WpadDecisionTime = 104903490384db01	2025-02-21_1ae474ee2178faef068d734ca3bf8626_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2025-02-21_1ae474ee2178faef068d734ca3bf8626_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2025-02-21_1ae474ee2178faef068d734ca3bf8626_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2025-02-21_1ae474ee2178faef068d734ca3bf8626_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2025-02-21_1ae474ee2178faef068d734ca3bf8626_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2025-02-21_1ae474ee2178faef068d734ca3bf8626_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00ae000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-02-21_1ae474ee2178faef068d734ca3bf8626_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{92F7C9E8-F056-4FBA-A791-4147CB7B9EE2}\WpadDecisionReason = "1"	2025-02-21_1ae474ee2178faef068d734ca3bf8626_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-02-21_1ae474ee2178faef068d734ca3bf8626_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2025-02-21_1ae474ee2178faef068d734ca3bf8626_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-21_1ae474ee2178faef068d734ca3bf8626_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2692
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2720

C:\Users\Admin\AppData\Local\Temp\2025-02-21_1ae474ee2178faef068d734ca3bf8626_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2025-02-21_1ae474ee2178faef068d734ca3bf8626_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2088

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
b00efce31dd598031eac941155e8f994

SHA1
98d39b6241efee70579ce9fc193fe44d2c39f9c4

SHA256
5bbbc42020a34e029371f549ce9a94a2e83290688468414699c70ca26c4e382a

SHA512
f33a4b5965988b449ff3f58d281b482a08a6f26636d18f8134f64210011fd7b7e35061348ed6551e14b5ca2e4a0fab799075d3163069ec41eaeb9d685838b3d5

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