wannacry | f36cd461618c48c8d8cf629f108088dab4d81228b942e9a155aed0442aeb72f5

General

Target

20240910c93db2f47557d0b85e52399288cd710bwannacry.exe
Size

5.0MB
MD5

c93db2f47557d0b85e52399288cd710b
SHA1

34a17cc33db13d7ef60e09b64fa45ad4bfe113a8
SHA256

f36cd461618c48c8d8cf629f108088dab4d81228b942e9a155aed0442aeb72f5
SHA512

15268c011bbac94c522f32aac0082ba131a21199e8612a7446b443fff335bc0c6e9f20c6f1eaff6292b60961286cfd564fd9933e169ba71d019ece3ef3a804e0
SSDEEP

98304:yDqPoBhz1aRxcSUDk36SAEdhvxWa9LG5CRxvb5aj:yDqPe1Cxcxk3ZAEUa0Ynb5

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3330) 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
2652	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	20240910c93db2f47557d0b85e52399288cd710bwannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	20240910c93db2f47557d0b85e52399288cd710bwannacry.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	20240910c93db2f47557d0b85e52399288cd710bwannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	20240910c93db2f47557d0b85e52399288cd710bwannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	20240910c93db2f47557d0b85e52399288cd710bwannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f009e000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	20240910c93db2f47557d0b85e52399288cd710bwannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C67CFAA8-77AA-41D3-9444-3D915317374B}\WpadDecisionReason = "1"	20240910c93db2f47557d0b85e52399288cd710bwannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\e6-7d-0f-04-70-bd\WpadDecisionTime = 0083ea769003db01	20240910c93db2f47557d0b85e52399288cd710bwannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	20240910c93db2f47557d0b85e52399288cd710bwannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\e6-7d-0f-04-70-bd	20240910c93db2f47557d0b85e52399288cd710bwannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	20240910c93db2f47557d0b85e52399288cd710bwannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	20240910c93db2f47557d0b85e52399288cd710bwannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	20240910c93db2f47557d0b85e52399288cd710bwannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C67CFAA8-77AA-41D3-9444-3D915317374B}\WpadDecision = "0"	20240910c93db2f47557d0b85e52399288cd710bwannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C67CFAA8-77AA-41D3-9444-3D915317374B}\e6-7d-0f-04-70-bd	20240910c93db2f47557d0b85e52399288cd710bwannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\e6-7d-0f-04-70-bd\WpadDecisionReason = "1"	20240910c93db2f47557d0b85e52399288cd710bwannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	20240910c93db2f47557d0b85e52399288cd710bwannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	20240910c93db2f47557d0b85e52399288cd710bwannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	20240910c93db2f47557d0b85e52399288cd710bwannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	20240910c93db2f47557d0b85e52399288cd710bwannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	20240910c93db2f47557d0b85e52399288cd710bwannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	20240910c93db2f47557d0b85e52399288cd710bwannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	20240910c93db2f47557d0b85e52399288cd710bwannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	20240910c93db2f47557d0b85e52399288cd710bwannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C67CFAA8-77AA-41D3-9444-3D915317374B}	20240910c93db2f47557d0b85e52399288cd710bwannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C67CFAA8-77AA-41D3-9444-3D915317374B}\WpadDecisionTime = 0083ea769003db01	20240910c93db2f47557d0b85e52399288cd710bwannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C67CFAA8-77AA-41D3-9444-3D915317374B}\WpadNetworkName = "Network 3"	20240910c93db2f47557d0b85e52399288cd710bwannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\e6-7d-0f-04-70-bd\WpadDecision = "0"	20240910c93db2f47557d0b85e52399288cd710bwannacry.exe

C:\Users\Admin\AppData\Local\Temp\20240910c93db2f47557d0b85e52399288cd710bwannacry.exe
"C:\Users\Admin\AppData\Local\Temp\20240910c93db2f47557d0b85e52399288cd710bwannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2328
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2652

C:\Users\Admin\AppData\Local\Temp\20240910c93db2f47557d0b85e52399288cd710bwannacry.exe
C:\Users\Admin\AppData\Local\Temp\20240910c93db2f47557d0b85e52399288cd710bwannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:1472

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
97696d5c99f35a12007b5010944f6615

SHA1
9f3e300de6a18ca274e6b762c8dd35a7195f73bb

SHA256
860185214d80c72e9f7ea3009d232eb0f4b5a85691f939f246488ab5c1e18f48

SHA512
85291e4bda60cf5f22a68db459da3fe118f7596eed18b47019bd7a5583203bdfe392f0caa14e4a13e597cf139a986a02438189abff529ca11c63a9ac92465a56

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Analysis

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