wannacry | bc71972072b2559d78079c41e79f9fb808be3a8a3473439ea0485d1712d4cbd9

General

Target

2024-06-15_a9fc19a8ac8150c4654bcbb2c0fb0c18_wannacry.exe
Size

5.0MB
MD5

a9fc19a8ac8150c4654bcbb2c0fb0c18
SHA1

907afece4225e0858fe5b93e187faff815fef368
SHA256

bc71972072b2559d78079c41e79f9fb808be3a8a3473439ea0485d1712d4cbd9
SHA512

ddfc1bd0c852bac92170da73a8b7d8469fc3b03b20a78db58d0e4c7dfcce8591ef30fc83fe3d0d1c926b5ba87fd15e81ee722c53719a7acf1f67f6efddf0f702
SSDEEP

98304:XDqPoBhz1aRxcSUDk36SAEdhvxWa9P5rwz3Qqgbz:XDqPe1Cxcxk3ZAEUad9wMt3

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3117) 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
2104	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	2024-06-15_a9fc19a8ac8150c4654bcbb2c0fb0c18_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-06-15_a9fc19a8ac8150c4654bcbb2c0fb0c18_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-06-15_a9fc19a8ac8150c4654bcbb2c0fb0c18_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-06-15_a9fc19a8ac8150c4654bcbb2c0fb0c18_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-06-15_a9fc19a8ac8150c4654bcbb2c0fb0c18_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2D7D11BE-5746-4F42-BBA6-4E8359DC0598}\WpadDecisionReason = "1"	2024-06-15_a9fc19a8ac8150c4654bcbb2c0fb0c18_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2D7D11BE-5746-4F42-BBA6-4E8359DC0598}\WpadDecisionTime = 90f72d1b16bfda01	2024-06-15_a9fc19a8ac8150c4654bcbb2c0fb0c18_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\d2-8f-33-19-d8-a7	2024-06-15_a9fc19a8ac8150c4654bcbb2c0fb0c18_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-06-15_a9fc19a8ac8150c4654bcbb2c0fb0c18_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-06-15_a9fc19a8ac8150c4654bcbb2c0fb0c18_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\d2-8f-33-19-d8-a7\WpadDecisionTime = 90f72d1b16bfda01	2024-06-15_a9fc19a8ac8150c4654bcbb2c0fb0c18_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\d2-8f-33-19-d8-a7\WpadDecision = "0"	2024-06-15_a9fc19a8ac8150c4654bcbb2c0fb0c18_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-06-15_a9fc19a8ac8150c4654bcbb2c0fb0c18_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-06-15_a9fc19a8ac8150c4654bcbb2c0fb0c18_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-06-15_a9fc19a8ac8150c4654bcbb2c0fb0c18_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-06-15_a9fc19a8ac8150c4654bcbb2c0fb0c18_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f010c000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-06-15_a9fc19a8ac8150c4654bcbb2c0fb0c18_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2D7D11BE-5746-4F42-BBA6-4E8359DC0598}	2024-06-15_a9fc19a8ac8150c4654bcbb2c0fb0c18_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-06-15_a9fc19a8ac8150c4654bcbb2c0fb0c18_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-06-15_a9fc19a8ac8150c4654bcbb2c0fb0c18_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\d2-8f-33-19-d8-a7\WpadDecisionReason = "1"	2024-06-15_a9fc19a8ac8150c4654bcbb2c0fb0c18_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2D7D11BE-5746-4F42-BBA6-4E8359DC0598}\WpadDecision = "0"	2024-06-15_a9fc19a8ac8150c4654bcbb2c0fb0c18_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2D7D11BE-5746-4F42-BBA6-4E8359DC0598}\d2-8f-33-19-d8-a7	2024-06-15_a9fc19a8ac8150c4654bcbb2c0fb0c18_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2D7D11BE-5746-4F42-BBA6-4E8359DC0598}\WpadNetworkName = "Network 3"	2024-06-15_a9fc19a8ac8150c4654bcbb2c0fb0c18_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-06-15_a9fc19a8ac8150c4654bcbb2c0fb0c18_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-06-15_a9fc19a8ac8150c4654bcbb2c0fb0c18_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-06-15_a9fc19a8ac8150c4654bcbb2c0fb0c18_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-15_a9fc19a8ac8150c4654bcbb2c0fb0c18_wannacry.exe"
1⤵
- Drops file in Windows directory
PID:1704
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2104

C:\Users\Admin\AppData\Local\Temp\2024-06-15_a9fc19a8ac8150c4654bcbb2c0fb0c18_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-06-15_a9fc19a8ac8150c4654bcbb2c0fb0c18_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
PID:2184

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\tasksche.exe

Filesize
3.4MB

MD5
91a4def87104bcc9b604f7673ecef166

SHA1
5b97dbfea2b53e11cb23e4c98028e1e40103d61e

SHA256
51bf005771e7c6795f37f8874566278fd696decf14cc9894747e9c289c4cab02

SHA512
ee9d26ebc0e3cd751f6dd7963fbb3fdc56c1bc2b989bfbd990cc00491cf65291fb4875ce5e3129b5fde9ad3a1db2165741258e212e77aa87257208d77add744a

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