wannacry | 54f21519c535bf3457098708f71efc4ab88e16488faa7aa1ed7b63102015a06f

General

Target

2024-07-09_b729a2c90fb331e85f60ff9ac0e2343d_wannacry.exe
Size

5.0MB
MD5

b729a2c90fb331e85f60ff9ac0e2343d
SHA1

ba9787c2f66b126f44af257e492d6b3b7edd10b8
SHA256

54f21519c535bf3457098708f71efc4ab88e16488faa7aa1ed7b63102015a06f
SHA512

74879da8a3e22c8f3731ee6d456f6984cb2c47f08d88f7571549f2239b438f9ec0385ecfefb49b6fdc2fcc2548b47046dfc30f85c750206f68d6042c5ff80a9d
SSDEEP

49152:2nAQqMSPbcBVGINRx+TSqTdX1HkQo6SAARYvxJM0:yDqPoBwaRxcSUDk36SAEwxW

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (2991) 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
2924	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	2024-07-09_b729a2c90fb331e85f60ff9ac0e2343d_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-07-09_b729a2c90fb331e85f60ff9ac0e2343d_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A8D78313-4E20-4AEC-8E17-C95FD29F6B01}	2024-07-09_b729a2c90fb331e85f60ff9ac0e2343d_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ba-4b-52-e9-77-4f\WpadDecisionTime = 107b0ae7f7d1da01	2024-07-09_b729a2c90fb331e85f60ff9ac0e2343d_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-07-09_b729a2c90fb331e85f60ff9ac0e2343d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-07-09_b729a2c90fb331e85f60ff9ac0e2343d_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-07-09_b729a2c90fb331e85f60ff9ac0e2343d_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-07-09_b729a2c90fb331e85f60ff9ac0e2343d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-07-09_b729a2c90fb331e85f60ff9ac0e2343d_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0070000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-07-09_b729a2c90fb331e85f60ff9ac0e2343d_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A8D78313-4E20-4AEC-8E17-C95FD29F6B01}\WpadDecisionTime = 107b0ae7f7d1da01	2024-07-09_b729a2c90fb331e85f60ff9ac0e2343d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ba-4b-52-e9-77-4f	2024-07-09_b729a2c90fb331e85f60ff9ac0e2343d_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-07-09_b729a2c90fb331e85f60ff9ac0e2343d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-07-09_b729a2c90fb331e85f60ff9ac0e2343d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-07-09_b729a2c90fb331e85f60ff9ac0e2343d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ba-4b-52-e9-77-4f\WpadDecisionReason = "1"	2024-07-09_b729a2c90fb331e85f60ff9ac0e2343d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ba-4b-52-e9-77-4f\WpadDecision = "0"	2024-07-09_b729a2c90fb331e85f60ff9ac0e2343d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A8D78313-4E20-4AEC-8E17-C95FD29F6B01}\WpadDecision = "0"	2024-07-09_b729a2c90fb331e85f60ff9ac0e2343d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-07-09_b729a2c90fb331e85f60ff9ac0e2343d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-07-09_b729a2c90fb331e85f60ff9ac0e2343d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A8D78313-4E20-4AEC-8E17-C95FD29F6B01}\WpadDecisionReason = "1"	2024-07-09_b729a2c90fb331e85f60ff9ac0e2343d_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A8D78313-4E20-4AEC-8E17-C95FD29F6B01}\WpadNetworkName = "Network 3"	2024-07-09_b729a2c90fb331e85f60ff9ac0e2343d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A8D78313-4E20-4AEC-8E17-C95FD29F6B01}\ba-4b-52-e9-77-4f	2024-07-09_b729a2c90fb331e85f60ff9ac0e2343d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-07-09_b729a2c90fb331e85f60ff9ac0e2343d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-07-09_b729a2c90fb331e85f60ff9ac0e2343d_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-07-09_b729a2c90fb331e85f60ff9ac0e2343d_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-07-09_b729a2c90fb331e85f60ff9ac0e2343d_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-07-09_b729a2c90fb331e85f60ff9ac0e2343d_wannacry.exe"
1⤵
- Drops file in Windows directory
PID:600
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2924

C:\Users\Admin\AppData\Local\Temp\2024-07-09_b729a2c90fb331e85f60ff9ac0e2343d_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-07-09_b729a2c90fb331e85f60ff9ac0e2343d_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
PID:2844

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
99f64ac7ddf1077b55f14ed8749c56f5

SHA1
840dc021ef65e602c40f9c2b215763a07232cb60

SHA256
e3ed93160a6729aa237bfb6bcadb835c70a0de73263eb4cb55d67531636068fb

SHA512
2d35f28269fe591f2c3313545ab931ba2e9ba794162a94c3b96b3930a3eb0c74231f851492dd0abcecbdc8f260d6a233b08a76843edc961b3a657740e0d9d29d

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Analysis

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