wannacry | 14f63d678f4aed27f7e7b66e6899c1c6923472e928f1a96fd46e80ebe5f7c891

General

Target

202409277fd08dd56d543dd9663421477d6bbb72wannacry.exe
Size

3.6MB
MD5

7fd08dd56d543dd9663421477d6bbb72
SHA1

37260eff1a0712298234d2a4ee3f30947edd6494
SHA256

14f63d678f4aed27f7e7b66e6899c1c6923472e928f1a96fd46e80ebe5f7c891
SHA512

14d4768246b60446b9aa5d5b74c6659fa558f16588201b6bba39a598f873e5578255e14b28676e1045d06e8749209a45c1d69813555e1e908a37fdcdfbc018c9
SSDEEP

98304:yDqPoBhz1aRxcSUZk36SAEdhvxWa9P59NRVyAVp2HI:yDqPe1Cxc7k3ZAEUadZRVyc4HI

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3199) 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
2608	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	202409277fd08dd56d543dd9663421477d6bbb72wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	202409277fd08dd56d543dd9663421477d6bbb72wannacry.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	202409277fd08dd56d543dd9663421477d6bbb72wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	202409277fd08dd56d543dd9663421477d6bbb72wannacry.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	202409277fd08dd56d543dd9663421477d6bbb72wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	202409277fd08dd56d543dd9663421477d6bbb72wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	202409277fd08dd56d543dd9663421477d6bbb72wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	202409277fd08dd56d543dd9663421477d6bbb72wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	202409277fd08dd56d543dd9663421477d6bbb72wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{6C87582F-BE40-4146-A140-01801D13C675}\WpadDecisionTime = 000d0cc13c11db01	202409277fd08dd56d543dd9663421477d6bbb72wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{6C87582F-BE40-4146-A140-01801D13C675}\b6-ca-83-25-1a-41	202409277fd08dd56d543dd9663421477d6bbb72wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{6C87582F-BE40-4146-A140-01801D13C675}\WpadDecision = "0"	202409277fd08dd56d543dd9663421477d6bbb72wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\b6-ca-83-25-1a-41\WpadDecisionTime = 000d0cc13c11db01	202409277fd08dd56d543dd9663421477d6bbb72wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\b6-ca-83-25-1a-41\WpadDecisionReason = "1"	202409277fd08dd56d543dd9663421477d6bbb72wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	202409277fd08dd56d543dd9663421477d6bbb72wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	202409277fd08dd56d543dd9663421477d6bbb72wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	202409277fd08dd56d543dd9663421477d6bbb72wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	202409277fd08dd56d543dd9663421477d6bbb72wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00f0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	202409277fd08dd56d543dd9663421477d6bbb72wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{6C87582F-BE40-4146-A140-01801D13C675}\WpadDecisionReason = "1"	202409277fd08dd56d543dd9663421477d6bbb72wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{6C87582F-BE40-4146-A140-01801D13C675}\WpadNetworkName = "Network 3"	202409277fd08dd56d543dd9663421477d6bbb72wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	202409277fd08dd56d543dd9663421477d6bbb72wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	202409277fd08dd56d543dd9663421477d6bbb72wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	202409277fd08dd56d543dd9663421477d6bbb72wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	202409277fd08dd56d543dd9663421477d6bbb72wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{6C87582F-BE40-4146-A140-01801D13C675}	202409277fd08dd56d543dd9663421477d6bbb72wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\b6-ca-83-25-1a-41	202409277fd08dd56d543dd9663421477d6bbb72wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\b6-ca-83-25-1a-41\WpadDecision = "0"	202409277fd08dd56d543dd9663421477d6bbb72wannacry.exe

C:\Users\Admin\AppData\Local\Temp\202409277fd08dd56d543dd9663421477d6bbb72wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\202409277fd08dd56d543dd9663421477d6bbb72wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2076
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2608

C:\Users\Admin\AppData\Local\Temp\202409277fd08dd56d543dd9663421477d6bbb72wannacry.exe
C:\Users\Admin\AppData\Local\Temp\202409277fd08dd56d543dd9663421477d6bbb72wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:3024

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
fc911e66e4d7f87f767635d941a7d839

SHA1
217f313fb54c0c51e7bfa77d80003e844c590107

SHA256
d80246bb63cdbbbcc75fbefe6a278374f398c2e1ff1a512936f603447dbcfa75

SHA512
30f2be67bac7347b41d1ae217a646041d94d522e26c6b44b0b49cc91eeb4d8022dca95170ee48973085cc43210dfaf9d09b6bf6abcf93318502977961d7770c4

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