wannacry | 87cb06894be2042920918913cac4b6099eb0f0397dd6939cfde1cb2a7411959e

General

Target

2024-10-13_36113a8c97fc01c2a487c95c7983d11e_wannacry.exe
Size

3.6MB
MD5

36113a8c97fc01c2a487c95c7983d11e
SHA1

59893cd61bba356391e11457c6d1727f9566947c
SHA256

87cb06894be2042920918913cac4b6099eb0f0397dd6939cfde1cb2a7411959e
SHA512

0a37e33b354aa84d5abae40f0fb6273117d26275b3578a50da899c62dcc1073a42b1b3e56dd933523436837bd6a0d45cc852d6ebf7a9724680df1d0f97db3f5c
SSDEEP

98304:XDqPoBhz1aRESUDk36SSxWa9P+33AVp2HI:XDqPe1CExk3ZFadQ3c4HI

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3304) 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
2796	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	2024-10-13_36113a8c97fc01c2a487c95c7983d11e_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-10-13_36113a8c97fc01c2a487c95c7983d11e_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	2024-10-13_36113a8c97fc01c2a487c95c7983d11e_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-13_36113a8c97fc01c2a487c95c7983d11e_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\History\CachePrefix = "Visited:"	2024-10-13_36113a8c97fc01c2a487c95c7983d11e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-10-13_36113a8c97fc01c2a487c95c7983d11e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{5CF0AAE7-81F7-41F2-9EB1-FD97CA33B946}	2024-10-13_36113a8c97fc01c2a487c95c7983d11e_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{5CF0AAE7-81F7-41F2-9EB1-FD97CA33B946}\WpadDecisionReason = "1"	2024-10-13_36113a8c97fc01c2a487c95c7983d11e_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{5CF0AAE7-81F7-41F2-9EB1-FD97CA33B946}\WpadDecisionTime = 00e39a11531ddb01	2024-10-13_36113a8c97fc01c2a487c95c7983d11e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-13_36113a8c97fc01c2a487c95c7983d11e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-10-13_36113a8c97fc01c2a487c95c7983d11e_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-13_36113a8c97fc01c2a487c95c7983d11e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\66-68-ed-3f-c1-c7	2024-10-13_36113a8c97fc01c2a487c95c7983d11e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{5CF0AAE7-81F7-41F2-9EB1-FD97CA33B946}\66-68-ed-3f-c1-c7	2024-10-13_36113a8c97fc01c2a487c95c7983d11e_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\66-68-ed-3f-c1-c7\WpadDecisionReason = "1"	2024-10-13_36113a8c97fc01c2a487c95c7983d11e_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-10-13_36113a8c97fc01c2a487c95c7983d11e_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-10-13_36113a8c97fc01c2a487c95c7983d11e_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-10-13_36113a8c97fc01c2a487c95c7983d11e_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0128000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-13_36113a8c97fc01c2a487c95c7983d11e_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{5CF0AAE7-81F7-41F2-9EB1-FD97CA33B946}\WpadDecision = "0"	2024-10-13_36113a8c97fc01c2a487c95c7983d11e_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{5CF0AAE7-81F7-41F2-9EB1-FD97CA33B946}\WpadNetworkName = "Network 3"	2024-10-13_36113a8c97fc01c2a487c95c7983d11e_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\66-68-ed-3f-c1-c7\WpadDecisionTime = 00e39a11531ddb01	2024-10-13_36113a8c97fc01c2a487c95c7983d11e_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\66-68-ed-3f-c1-c7\WpadDecision = "0"	2024-10-13_36113a8c97fc01c2a487c95c7983d11e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-13_36113a8c97fc01c2a487c95c7983d11e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-10-13_36113a8c97fc01c2a487c95c7983d11e_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-10-13_36113a8c97fc01c2a487c95c7983d11e_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-13_36113a8c97fc01c2a487c95c7983d11e_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-10-13_36113a8c97fc01c2a487c95c7983d11e_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-10-13_36113a8c97fc01c2a487c95c7983d11e_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-13_36113a8c97fc01c2a487c95c7983d11e_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1792
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2796

C:\Users\Admin\AppData\Local\Temp\2024-10-13_36113a8c97fc01c2a487c95c7983d11e_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-10-13_36113a8c97fc01c2a487c95c7983d11e_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2772

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
99cab4e4ece2c5e875595864e1f9f9db

SHA1
0c8d1902ed7d5165b1e3e34bcd5f3acaa4cecc18

SHA256
28a68a0ab5e3e13689860d748dd67cdcf553fb326c02952e9784462e3067a99f

SHA512
10e2d47898e691a6d60f1ad3d791265ef959a7245305d9a732c9150ce10bc01c01be17f9321a9b08ab7416cabdb76bde5240b6ac578ef3fbc779a696fa6b1d02

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