wannacry | fea3399f7968b893820e8af3ada5bb99ed23c7f7caa103b854a24a77aa90f1ba

General

Target

2024-10-12_c7ff52e36bd42842945569f784997da5_wannacry.exe
Size

5.0MB
MD5

c7ff52e36bd42842945569f784997da5
SHA1

2f92572ee5b0fde3475cd10696ad773902d7d221
SHA256

fea3399f7968b893820e8af3ada5bb99ed23c7f7caa103b854a24a77aa90f1ba
SHA512

d9ceafd8ac11cede9e5e07334ca4576d8c77f14338b45802433843380400272f26304b46a7098bbbb7036c5cf9b2c720ce554f8a541edbc733cc0e54845aa155
SSDEEP

49152:2nAQqMSPbcBVQej/1INRx+TSqTdudDAH1plA:yDqPoBhz1aRxcSUMdDAVp2

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3186) 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
2916	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_c7ff52e36bd42842945569f784997da5_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-10-12_c7ff52e36bd42842945569f784997da5_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_c7ff52e36bd42842945569f784997da5_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-12_c7ff52e36bd42842945569f784997da5_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 = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00a9000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_c7ff52e36bd42842945569f784997da5_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A45E1FE6-C092-422F-B541-3550F4B1002D}\WpadDecisionTime = 8038a933c61cdb01	2024-10-12_c7ff52e36bd42842945569f784997da5_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A45E1FE6-C092-422F-B541-3550F4B1002D}\96-6d-e2-fe-f3-e4	2024-10-12_c7ff52e36bd42842945569f784997da5_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\96-6d-e2-fe-f3-e4\WpadDecisionReason = "1"	2024-10-12_c7ff52e36bd42842945569f784997da5_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-10-12_c7ff52e36bd42842945569f784997da5_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-10-12_c7ff52e36bd42842945569f784997da5_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-10-12_c7ff52e36bd42842945569f784997da5_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\96-6d-e2-fe-f3-e4\WpadDecisionTime = 8038a933c61cdb01	2024-10-12_c7ff52e36bd42842945569f784997da5_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\96-6d-e2-fe-f3-e4\WpadDecision = "0"	2024-10-12_c7ff52e36bd42842945569f784997da5_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-10-12_c7ff52e36bd42842945569f784997da5_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-10-12_c7ff52e36bd42842945569f784997da5_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-10-12_c7ff52e36bd42842945569f784997da5_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_c7ff52e36bd42842945569f784997da5_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-10-12_c7ff52e36bd42842945569f784997da5_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-10-12_c7ff52e36bd42842945569f784997da5_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A45E1FE6-C092-422F-B541-3550F4B1002D}	2024-10-12_c7ff52e36bd42842945569f784997da5_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A45E1FE6-C092-422F-B541-3550F4B1002D}\WpadNetworkName = "Network 3"	2024-10-12_c7ff52e36bd42842945569f784997da5_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-12_c7ff52e36bd42842945569f784997da5_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_c7ff52e36bd42842945569f784997da5_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-12_c7ff52e36bd42842945569f784997da5_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\96-6d-e2-fe-f3-e4	2024-10-12_c7ff52e36bd42842945569f784997da5_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-10-12_c7ff52e36bd42842945569f784997da5_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A45E1FE6-C092-422F-B541-3550F4B1002D}\WpadDecisionReason = "1"	2024-10-12_c7ff52e36bd42842945569f784997da5_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A45E1FE6-C092-422F-B541-3550F4B1002D}\WpadDecision = "0"	2024-10-12_c7ff52e36bd42842945569f784997da5_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-10-12_c7ff52e36bd42842945569f784997da5_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-12_c7ff52e36bd42842945569f784997da5_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2380
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2916

C:\Users\Admin\AppData\Local\Temp\2024-10-12_c7ff52e36bd42842945569f784997da5_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-10-12_c7ff52e36bd42842945569f784997da5_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2448

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
f6367402d70c41c6526ce2e862815426

SHA1
3f0f4f7f7bc9d88d29fcdf372565c0c0001a213a

SHA256
000ccce468ff9a74e646e3299ab5354e990301f67c5ea3a3bce020b1c7a9550d

SHA512
82b385981c409703e7f848551a00ef7eb4f2caf6b77cdf1b93f61ac0d63ff32d833ce801dfd3b2f10fc40a7d8d9dff39ae8df7096f5085d4fe363a64614200c9

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Analysis

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