wannacry | 092e5767a51f5328ca47a1b45422dea80d4459affcc6970ba4b1d2f8e03670b1

General

Target

2024-10-10_6617f6d1c6aadfe1ce7842b046c2be85_wannacry.exe
Size

3.6MB
MD5

6617f6d1c6aadfe1ce7842b046c2be85
SHA1

f6ad5c7b4d8da13cf998fba5fbcaf8e02b633807
SHA256

092e5767a51f5328ca47a1b45422dea80d4459affcc6970ba4b1d2f8e03670b1
SHA512

e687374647f563d3dff75a8f67c38b10b5529e5081191f3db37f29cb96856e556a75570a42c88e28f079d76fe3ff06589cf9c522e4faf99fceaab054338d9d04
SSDEEP

24576:2bLgddQhfdmMSirYbcMNgef0QeQjG/D8kIqRYoAdlqAH1pNZtA0p+9XEkI:2nAQqMSPbcBVQej/1I8AH1plAHI

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3000) 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
2892	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	2024-10-10_6617f6d1c6aadfe1ce7842b046c2be85_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-10-10_6617f6d1c6aadfe1ce7842b046c2be85_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	2024-10-10_6617f6d1c6aadfe1ce7842b046c2be85_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-10_6617f6d1c6aadfe1ce7842b046c2be85_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-10-10_6617f6d1c6aadfe1ce7842b046c2be85_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{567FD20D-2DB7-41E1-BC3A-FD81D118E39F}	2024-10-10_6617f6d1c6aadfe1ce7842b046c2be85_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{567FD20D-2DB7-41E1-BC3A-FD81D118E39F}\WpadDecisionTime = 90afac106f1bdb01	2024-10-10_6617f6d1c6aadfe1ce7842b046c2be85_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-10_6617f6d1c6aadfe1ce7842b046c2be85_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-10-10_6617f6d1c6aadfe1ce7842b046c2be85_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-10_6617f6d1c6aadfe1ce7842b046c2be85_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-10-10_6617f6d1c6aadfe1ce7842b046c2be85_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{567FD20D-2DB7-41E1-BC3A-FD81D118E39F}\WpadDecisionReason = "1"	2024-10-10_6617f6d1c6aadfe1ce7842b046c2be85_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\d2-cb-0c-a3-f4-33\WpadDecision = "0"	2024-10-10_6617f6d1c6aadfe1ce7842b046c2be85_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0178000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-10_6617f6d1c6aadfe1ce7842b046c2be85_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{567FD20D-2DB7-41E1-BC3A-FD81D118E39F}\WpadDecision = "0"	2024-10-10_6617f6d1c6aadfe1ce7842b046c2be85_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-10_6617f6d1c6aadfe1ce7842b046c2be85_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-10_6617f6d1c6aadfe1ce7842b046c2be85_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-10-10_6617f6d1c6aadfe1ce7842b046c2be85_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-10-10_6617f6d1c6aadfe1ce7842b046c2be85_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-10-10_6617f6d1c6aadfe1ce7842b046c2be85_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-10-10_6617f6d1c6aadfe1ce7842b046c2be85_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\d2-cb-0c-a3-f4-33	2024-10-10_6617f6d1c6aadfe1ce7842b046c2be85_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{567FD20D-2DB7-41E1-BC3A-FD81D118E39F}\d2-cb-0c-a3-f4-33	2024-10-10_6617f6d1c6aadfe1ce7842b046c2be85_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\d2-cb-0c-a3-f4-33\WpadDecisionReason = "1"	2024-10-10_6617f6d1c6aadfe1ce7842b046c2be85_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\d2-cb-0c-a3-f4-33\WpadDecisionTime = 90afac106f1bdb01	2024-10-10_6617f6d1c6aadfe1ce7842b046c2be85_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-10-10_6617f6d1c6aadfe1ce7842b046c2be85_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-10-10_6617f6d1c6aadfe1ce7842b046c2be85_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{567FD20D-2DB7-41E1-BC3A-FD81D118E39F}\WpadNetworkName = "Network 3"	2024-10-10_6617f6d1c6aadfe1ce7842b046c2be85_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-10-10_6617f6d1c6aadfe1ce7842b046c2be85_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-10_6617f6d1c6aadfe1ce7842b046c2be85_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2788
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2892

C:\Users\Admin\AppData\Local\Temp\2024-10-10_6617f6d1c6aadfe1ce7842b046c2be85_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-10-10_6617f6d1c6aadfe1ce7842b046c2be85_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2852

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
d447b1084735e9500844685a5a8daf58

SHA1
24f373d262c1c70f083fdeeef01fa3d2356d9253

SHA256
228939fb14bab5bd48d2757c2aed13dc8dc32b99fa403a9c30d6a365191b9afa

SHA512
6947f70356b7c00bd95576f0769c05069beaa69a6d36d67c2ada9fe48c86cd255a4cdd0d9c77580b0eb1d2fc69490bca479af8c2fc47a619dc382a23d82f0454

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Analysis

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