wannacry | 39ff5575e216f1cbeab6fec8d2e8176ea08cf578a6b12b0a1ccc65f621e7f85d

General

Target

2024-10-12_2d081f8211ff3d34ac7e779684db99a8_wannacry.exe
Size

3.6MB
MD5

2d081f8211ff3d34ac7e779684db99a8
SHA1

7645e5016068ac7f8ec182af8780ddce11118c7b
SHA256

39ff5575e216f1cbeab6fec8d2e8176ea08cf578a6b12b0a1ccc65f621e7f85d
SHA512

6e94b95c50c087ac1757a4d28ef699637a9aff68180189401dcc07e298b61de5336c827322c004d4e072f008d918dab65bd92ad92c1477fe778b5af15ea05291
SSDEEP

49152:XnAQqMSPbcBVQej/1INRx+TSqTdX1HkQeI:XDqPoBhz1aRxcSUDkXI

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3193) 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
2864	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	2024-10-12_2d081f8211ff3d34ac7e779684db99a8_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-10-12_2d081f8211ff3d34ac7e779684db99a8_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	2024-10-12_2d081f8211ff3d34ac7e779684db99a8_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-12_2d081f8211ff3d34ac7e779684db99a8_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{F9466398-6D93-402C-8269-414A1E0EA80B}	2024-10-12_2d081f8211ff3d34ac7e779684db99a8_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{F9466398-6D93-402C-8269-414A1E0EA80B}\WpadDecisionReason = "1"	2024-10-12_2d081f8211ff3d34ac7e779684db99a8_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\3a-43-9d-b4-86-2f\WpadDecisionReason = "1"	2024-10-12_2d081f8211ff3d34ac7e779684db99a8_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\3a-43-9d-b4-86-2f\WpadDecision = "0"	2024-10-12_2d081f8211ff3d34ac7e779684db99a8_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-10-12_2d081f8211ff3d34ac7e779684db99a8_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-10-12_2d081f8211ff3d34ac7e779684db99a8_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-10-12_2d081f8211ff3d34ac7e779684db99a8_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_2d081f8211ff3d34ac7e779684db99a8_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-10-12_2d081f8211ff3d34ac7e779684db99a8_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00be000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_2d081f8211ff3d34ac7e779684db99a8_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{F9466398-6D93-402C-8269-414A1E0EA80B}\WpadNetworkName = "Network 3"	2024-10-12_2d081f8211ff3d34ac7e779684db99a8_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\3a-43-9d-b4-86-2f	2024-10-12_2d081f8211ff3d34ac7e779684db99a8_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-12_2d081f8211ff3d34ac7e779684db99a8_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-10-12_2d081f8211ff3d34ac7e779684db99a8_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-10-12_2d081f8211ff3d34ac7e779684db99a8_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{F9466398-6D93-402C-8269-414A1E0EA80B}\3a-43-9d-b4-86-2f	2024-10-12_2d081f8211ff3d34ac7e779684db99a8_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\3a-43-9d-b4-86-2f\WpadDecisionTime = a0af81f4541cdb01	2024-10-12_2d081f8211ff3d34ac7e779684db99a8_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-10-12_2d081f8211ff3d34ac7e779684db99a8_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-10-12_2d081f8211ff3d34ac7e779684db99a8_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{F9466398-6D93-402C-8269-414A1E0EA80B}\WpadDecisionTime = a0af81f4541cdb01	2024-10-12_2d081f8211ff3d34ac7e779684db99a8_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{F9466398-6D93-402C-8269-414A1E0EA80B}\WpadDecision = "0"	2024-10-12_2d081f8211ff3d34ac7e779684db99a8_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_2d081f8211ff3d34ac7e779684db99a8_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-12_2d081f8211ff3d34ac7e779684db99a8_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-10-12_2d081f8211ff3d34ac7e779684db99a8_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-10-12_2d081f8211ff3d34ac7e779684db99a8_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-12_2d081f8211ff3d34ac7e779684db99a8_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2100
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2864

C:\Users\Admin\AppData\Local\Temp\2024-10-12_2d081f8211ff3d34ac7e779684db99a8_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-10-12_2d081f8211ff3d34ac7e779684db99a8_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2436

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
7aef092c54d927bc678b6d2fb3fdd3fb

SHA1
cdc531b750b0ef5ba66d5bf6adef58bb50218d62

SHA256
2c332ff649e379523ddaf3c2edb4a1df483a9a955b09358288c7fdbd59ec3a20

SHA512
d64a729312734f651fd5931e52cb77c9c2fa5a23dde4ee84e1ec5490e42e15892d57dd25254e4176f9c45ceab3825bd6801d14fad120852827f7a1626c0249cb

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