wannacry | e72193fe924b374245e1588110df8b95b5db7adb8a360932ff9741b108d50cc4

General

Target

2024-08-03_deb24d34e3b6f271369605c8c0e734a0_wannacry.exe
Size

5.0MB
MD5

deb24d34e3b6f271369605c8c0e734a0
SHA1

3ca024882307e131d554221972e8dcf80879608a
SHA256

e72193fe924b374245e1588110df8b95b5db7adb8a360932ff9741b108d50cc4
SHA512

e0ade5414431536a40db5c3fec6990db8e94cf2f6bc8d9558619b10ac704662ad6c9426b70ca6613ab0f408612b79c402cfe6d82a8b6db13b033d8401e91541a
SSDEEP

98304:yDqPoBhz1aRxcSUDk36SAEdhvxWa9P5h3R8yAVp2H:yDqPe1Cxcxk3ZAEUadvR8yc4H

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3075) 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
2764	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	2024-08-03_deb24d34e3b6f271369605c8c0e734a0_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-08-03_deb24d34e3b6f271369605c8c0e734a0_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	2024-08-03_deb24d34e3b6f271369605c8c0e734a0_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-08-03_deb24d34e3b6f271369605c8c0e734a0_wannacry.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 = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00c0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-08-03_deb24d34e3b6f271369605c8c0e734a0_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{ECD8A8C1-E138-492D-AA7C-91C36501195A}\WpadDecisionReason = "1"	2024-08-03_deb24d34e3b6f271369605c8c0e734a0_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{ECD8A8C1-E138-492D-AA7C-91C36501195A}\WpadDecisionTime = c03165e885e5da01	2024-08-03_deb24d34e3b6f271369605c8c0e734a0_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\96-66-11-35-7d-66\WpadDecision = "0"	2024-08-03_deb24d34e3b6f271369605c8c0e734a0_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-08-03_deb24d34e3b6f271369605c8c0e734a0_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-08-03_deb24d34e3b6f271369605c8c0e734a0_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-08-03_deb24d34e3b6f271369605c8c0e734a0_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-08-03_deb24d34e3b6f271369605c8c0e734a0_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{ECD8A8C1-E138-492D-AA7C-91C36501195A}	2024-08-03_deb24d34e3b6f271369605c8c0e734a0_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\96-66-11-35-7d-66\WpadDecisionReason = "1"	2024-08-03_deb24d34e3b6f271369605c8c0e734a0_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-08-03_deb24d34e3b6f271369605c8c0e734a0_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-08-03_deb24d34e3b6f271369605c8c0e734a0_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-08-03_deb24d34e3b6f271369605c8c0e734a0_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-08-03_deb24d34e3b6f271369605c8c0e734a0_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-08-03_deb24d34e3b6f271369605c8c0e734a0_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{ECD8A8C1-E138-492D-AA7C-91C36501195A}\WpadDecision = "0"	2024-08-03_deb24d34e3b6f271369605c8c0e734a0_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{ECD8A8C1-E138-492D-AA7C-91C36501195A}\WpadNetworkName = "Network 3"	2024-08-03_deb24d34e3b6f271369605c8c0e734a0_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{ECD8A8C1-E138-492D-AA7C-91C36501195A}\96-66-11-35-7d-66	2024-08-03_deb24d34e3b6f271369605c8c0e734a0_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-08-03_deb24d34e3b6f271369605c8c0e734a0_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-08-03_deb24d34e3b6f271369605c8c0e734a0_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\96-66-11-35-7d-66	2024-08-03_deb24d34e3b6f271369605c8c0e734a0_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\96-66-11-35-7d-66\WpadDecisionTime = c03165e885e5da01	2024-08-03_deb24d34e3b6f271369605c8c0e734a0_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-08-03_deb24d34e3b6f271369605c8c0e734a0_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-08-03_deb24d34e3b6f271369605c8c0e734a0_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-08-03_deb24d34e3b6f271369605c8c0e734a0_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-08-03_deb24d34e3b6f271369605c8c0e734a0_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1920
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2764

C:\Users\Admin\AppData\Local\Temp\2024-08-03_deb24d34e3b6f271369605c8c0e734a0_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-08-03_deb24d34e3b6f271369605c8c0e734a0_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2592

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
be7f83d3a49d5842456734af764a8bab

SHA1
7e7e0fb529e6dabcb6195c1a0451f6600df0424c

SHA256
1b4b9d18c07dfc10ae5d1bf25fee25eab200ce1db9efe44dd3889ce4507e13c3

SHA512
78bf6270b6abfa6984024c87298b8bf64fa298482a2dde35628cc5adc782f01a760342d5fbcacc08eeeb90c947a86e7ab1e72192e6b13352deb5a76d31240019

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