wannacry | 6781557bce7ce2d41d1ceeb51a4ac94de0f683f7dab808e30763d8d98726aa77

General

Target

2025-01-21_e4b929c2db43df98a9326afef4d3dcfc_wannacry.exe
Size

5.0MB
MD5

e4b929c2db43df98a9326afef4d3dcfc
SHA1

63a9ffd817a36667e5f2eef1cb1e04c53af317e9
SHA256

6781557bce7ce2d41d1ceeb51a4ac94de0f683f7dab808e30763d8d98726aa77
SHA512

faa81a7f2849e580a707cc6ebc8bd0377ee20bc97c73b1118b733019f1700034ba8973fffe2a59a106b3498e50a2d845b778ecfab1b6c66be62e2777f2c9fc16
SSDEEP

49152:2nAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAA:yDqPoBhz1aRxcSUDk36SA

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 (3264) 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
828	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	2025-01-21_e4b929c2db43df98a9326afef4d3dcfc_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2025-01-21_e4b929c2db43df98a9326afef4d3dcfc_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	2025-01-21_e4b929c2db43df98a9326afef4d3dcfc_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-21_e4b929c2db43df98a9326afef4d3dcfc_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2025-01-21_e4b929c2db43df98a9326afef4d3dcfc_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-21_e4b929c2db43df98a9326afef4d3dcfc_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-21_e4b929c2db43df98a9326afef4d3dcfc_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2025-01-21_e4b929c2db43df98a9326afef4d3dcfc_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00b7000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-21_e4b929c2db43df98a9326afef4d3dcfc_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\06-79-44-18-ed-8c	2025-01-21_e4b929c2db43df98a9326afef4d3dcfc_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2025-01-21_e4b929c2db43df98a9326afef4d3dcfc_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{1FC23475-B648-428F-8A0F-1B7FECD9C553}\WpadDecisionTime = 804cf4050e6cdb01	2025-01-21_e4b929c2db43df98a9326afef4d3dcfc_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\06-79-44-18-ed-8c\WpadDecisionTime = 804cf4050e6cdb01	2025-01-21_e4b929c2db43df98a9326afef4d3dcfc_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\06-79-44-18-ed-8c\WpadDecision = "0"	2025-01-21_e4b929c2db43df98a9326afef4d3dcfc_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2025-01-21_e4b929c2db43df98a9326afef4d3dcfc_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2025-01-21_e4b929c2db43df98a9326afef4d3dcfc_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2025-01-21_e4b929c2db43df98a9326afef4d3dcfc_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2025-01-21_e4b929c2db43df98a9326afef4d3dcfc_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{1FC23475-B648-428F-8A0F-1B7FECD9C553}\WpadNetworkName = "Network 3"	2025-01-21_e4b929c2db43df98a9326afef4d3dcfc_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{1FC23475-B648-428F-8A0F-1B7FECD9C553}\06-79-44-18-ed-8c	2025-01-21_e4b929c2db43df98a9326afef4d3dcfc_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2025-01-21_e4b929c2db43df98a9326afef4d3dcfc_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2025-01-21_e4b929c2db43df98a9326afef4d3dcfc_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2025-01-21_e4b929c2db43df98a9326afef4d3dcfc_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{1FC23475-B648-428F-8A0F-1B7FECD9C553}	2025-01-21_e4b929c2db43df98a9326afef4d3dcfc_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{1FC23475-B648-428F-8A0F-1B7FECD9C553}\WpadDecisionReason = "1"	2025-01-21_e4b929c2db43df98a9326afef4d3dcfc_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{1FC23475-B648-428F-8A0F-1B7FECD9C553}\WpadDecision = "0"	2025-01-21_e4b929c2db43df98a9326afef4d3dcfc_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\06-79-44-18-ed-8c\WpadDecisionReason = "1"	2025-01-21_e4b929c2db43df98a9326afef4d3dcfc_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2025-01-21_e4b929c2db43df98a9326afef4d3dcfc_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2025-01-21_e4b929c2db43df98a9326afef4d3dcfc_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-21_e4b929c2db43df98a9326afef4d3dcfc_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2348
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:828

C:\Users\Admin\AppData\Local\Temp\2025-01-21_e4b929c2db43df98a9326afef4d3dcfc_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2025-01-21_e4b929c2db43df98a9326afef4d3dcfc_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2336

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
872d3a26984cebd6092061b6353e6596

SHA1
5f185cc81fe98c9f3e40214d3d0294dc82b0ef20

SHA256
cd957be4a380924697f9bf885d09f6ebb095eb434cc00891dbdf6f4ad9b0a007

SHA512
f690b74409e9fb67f3c1a083b01f787eec0389b15d025f34ef13e15a3d3b34befb13442a196620217141207b7448a6fdc58a1f360c59e2fa5bc8119c0322d7fb

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