wannacry | 1a009cc136aa83e763b66cbf8e726355f5d43e96ef7c91d2020c7bb3f4745edb

General

Target

2024-10-13_25a9007baf57b9bc9a52412d58d2f9d7_wannacry.exe
Size

3.6MB
MD5

25a9007baf57b9bc9a52412d58d2f9d7
SHA1

aceda85884358c7bd88c09ed14a0786bf9cf5039
SHA256

1a009cc136aa83e763b66cbf8e726355f5d43e96ef7c91d2020c7bb3f4745edb
SHA512

eca862d09111c4c9818da1c438b188c5e3d9aa30ffb012919245b5669c662b39469971e680af86ebe3d4ce574cffac732d61fade4ffe2f09d293d739cee9549b
SSDEEP

98304:yDqPoBhz1aRxcSUDk36SAEdhvxWa9P51I:yDqPe1Cxcxk3ZAEUadbI

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3313) 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
2756	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	2024-10-13_25a9007baf57b9bc9a52412d58d2f9d7_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-10-13_25a9007baf57b9bc9a52412d58d2f9d7_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	2024-10-13_25a9007baf57b9bc9a52412d58d2f9d7_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-13_25a9007baf57b9bc9a52412d58d2f9d7_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{BF7EE2FB-65E7-4035-9F42-591AB5F77DB3}\WpadDecisionTime = 8006a7bb121ddb01	2024-10-13_25a9007baf57b9bc9a52412d58d2f9d7_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-13_25a9007baf57b9bc9a52412d58d2f9d7_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-10-13_25a9007baf57b9bc9a52412d58d2f9d7_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-10-13_25a9007baf57b9bc9a52412d58d2f9d7_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-10-13_25a9007baf57b9bc9a52412d58d2f9d7_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-10-13_25a9007baf57b9bc9a52412d58d2f9d7_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-10-13_25a9007baf57b9bc9a52412d58d2f9d7_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0168000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-13_25a9007baf57b9bc9a52412d58d2f9d7_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{BF7EE2FB-65E7-4035-9F42-591AB5F77DB3}	2024-10-13_25a9007baf57b9bc9a52412d58d2f9d7_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-10-13_25a9007baf57b9bc9a52412d58d2f9d7_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-10-13_25a9007baf57b9bc9a52412d58d2f9d7_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-13_25a9007baf57b9bc9a52412d58d2f9d7_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{BF7EE2FB-65E7-4035-9F42-591AB5F77DB3}\WpadDecision = "0"	2024-10-13_25a9007baf57b9bc9a52412d58d2f9d7_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{BF7EE2FB-65E7-4035-9F42-591AB5F77DB3}\WpadNetworkName = "Network 3"	2024-10-13_25a9007baf57b9bc9a52412d58d2f9d7_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\32-b4-8e-3c-a1-cb\WpadDecision = "0"	2024-10-13_25a9007baf57b9bc9a52412d58d2f9d7_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\32-b4-8e-3c-a1-cb\WpadDecisionReason = "1"	2024-10-13_25a9007baf57b9bc9a52412d58d2f9d7_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-13_25a9007baf57b9bc9a52412d58d2f9d7_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-10-13_25a9007baf57b9bc9a52412d58d2f9d7_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{BF7EE2FB-65E7-4035-9F42-591AB5F77DB3}\WpadDecisionReason = "1"	2024-10-13_25a9007baf57b9bc9a52412d58d2f9d7_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{BF7EE2FB-65E7-4035-9F42-591AB5F77DB3}\32-b4-8e-3c-a1-cb	2024-10-13_25a9007baf57b9bc9a52412d58d2f9d7_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\32-b4-8e-3c-a1-cb\WpadDecisionTime = 8006a7bb121ddb01	2024-10-13_25a9007baf57b9bc9a52412d58d2f9d7_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-13_25a9007baf57b9bc9a52412d58d2f9d7_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-10-13_25a9007baf57b9bc9a52412d58d2f9d7_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\32-b4-8e-3c-a1-cb	2024-10-13_25a9007baf57b9bc9a52412d58d2f9d7_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-10-13_25a9007baf57b9bc9a52412d58d2f9d7_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-13_25a9007baf57b9bc9a52412d58d2f9d7_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2180
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2756

C:\Users\Admin\AppData\Local\Temp\2024-10-13_25a9007baf57b9bc9a52412d58d2f9d7_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-10-13_25a9007baf57b9bc9a52412d58d2f9d7_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2740

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
745f96f20ce20e16bc8f496b4161abbb

SHA1
5425d85702673fd1a483d1f079ba1a4c7d6fcff2

SHA256
738f97573c8a467b19717b0343adc1da5a4a53d5bde45bb62e438b0720e44b0d

SHA512
8b3981fab0b0179a5a973be343804d023908908a0a764736f04c71eaede2b88a31946bb2926a3ac895c0e7f4cec5a6c6205cb299c782e8d9ce5c3437a3e98dd0

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Analysis

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