wannacry | 1240ed50a59a30a7d56364cd7d29acf1f6f61439e10982fe2eab32a2911a684f

General

Target

2024-08-17_3664cd55b943a4d3b19963c61f557934_wannacry.exe
Size

3.6MB
MD5

3664cd55b943a4d3b19963c61f557934
SHA1

7099511b3bb17a9a0af28c012119a3603a07f768
SHA256

1240ed50a59a30a7d56364cd7d29acf1f6f61439e10982fe2eab32a2911a684f
SHA512

232bc7cfe170074b75bc473de9cc0ffed8185675fd36c8724c2ab14dc55e308968a9fd926baeb2fb8dd81260cbffdbfd8b796c2c254eaf1a629c5d0b20623ceb
SSDEEP

24576:0bLgddQhfdmMSirYbcMNgef0QeQjG/D8kIqRYoAdNLKz6626M+vbOSSqTPVXmiH:0nAQqMSPbcBVQej/1INRx+TSqTdX1H

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3168) 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
2920	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	2024-08-17_3664cd55b943a4d3b19963c61f557934_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-08-17_3664cd55b943a4d3b19963c61f557934_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	2024-08-17_3664cd55b943a4d3b19963c61f557934_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-08-17_3664cd55b943a4d3b19963c61f557934_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{417C53A7-7DF3-48B5-ACDA-ACF489BC8AF7}	2024-08-17_3664cd55b943a4d3b19963c61f557934_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{417C53A7-7DF3-48B5-ACDA-ACF489BC8AF7}\WpadDecisionTime = d0e7dfbb89f0da01	2024-08-17_3664cd55b943a4d3b19963c61f557934_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-08-17_3664cd55b943a4d3b19963c61f557934_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-08-17_3664cd55b943a4d3b19963c61f557934_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-08-17_3664cd55b943a4d3b19963c61f557934_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0108000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-08-17_3664cd55b943a4d3b19963c61f557934_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-08-17_3664cd55b943a4d3b19963c61f557934_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-08-17_3664cd55b943a4d3b19963c61f557934_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-08-17_3664cd55b943a4d3b19963c61f557934_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-08-17_3664cd55b943a4d3b19963c61f557934_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{417C53A7-7DF3-48B5-ACDA-ACF489BC8AF7}\WpadDecision = "0"	2024-08-17_3664cd55b943a4d3b19963c61f557934_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\fa-10-fb-c1-ff-27	2024-08-17_3664cd55b943a4d3b19963c61f557934_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{417C53A7-7DF3-48B5-ACDA-ACF489BC8AF7}\fa-10-fb-c1-ff-27	2024-08-17_3664cd55b943a4d3b19963c61f557934_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\fa-10-fb-c1-ff-27\WpadDecision = "0"	2024-08-17_3664cd55b943a4d3b19963c61f557934_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-08-17_3664cd55b943a4d3b19963c61f557934_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-08-17_3664cd55b943a4d3b19963c61f557934_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-08-17_3664cd55b943a4d3b19963c61f557934_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{417C53A7-7DF3-48B5-ACDA-ACF489BC8AF7}\WpadDecisionReason = "1"	2024-08-17_3664cd55b943a4d3b19963c61f557934_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\fa-10-fb-c1-ff-27\WpadDecisionReason = "1"	2024-08-17_3664cd55b943a4d3b19963c61f557934_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\fa-10-fb-c1-ff-27\WpadDecisionTime = d0e7dfbb89f0da01	2024-08-17_3664cd55b943a4d3b19963c61f557934_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-08-17_3664cd55b943a4d3b19963c61f557934_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-08-17_3664cd55b943a4d3b19963c61f557934_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-08-17_3664cd55b943a4d3b19963c61f557934_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{417C53A7-7DF3-48B5-ACDA-ACF489BC8AF7}\WpadNetworkName = "Network 3"	2024-08-17_3664cd55b943a4d3b19963c61f557934_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-08-17_3664cd55b943a4d3b19963c61f557934_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-08-17_3664cd55b943a4d3b19963c61f557934_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1872
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2920

C:\Users\Admin\AppData\Local\Temp\2024-08-17_3664cd55b943a4d3b19963c61f557934_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-08-17_3664cd55b943a4d3b19963c61f557934_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2136

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
ecf5f38772c0630ae223dfd22cb1d363

SHA1
97eebdfce6ee8839c596278c8060d737a2e790a2

SHA256
ef8d739428c0a04fe60510b479c2e564c22c0aab773f07b69e119fbcef07b6bd

SHA512
922cfd4245b4279cdbb4de83552f01c5248ce815a3aa30c3677c94e8f4e27a1868599ed81db807fbd2ec8d68158763f7bc4885c38a23dd4797a585639665e368

Download Submit
memory/1872-0-0x0000000000400000-0x0000000000A72000-memory.dmp

Filesize
6.4MB

Download
memory/1872-6-0x0000000000400000-0x0000000000A72000-memory.dmp

Filesize
6.4MB

Download
memory/2136-1-0x0000000000400000-0x0000000000A72000-memory.dmp

Filesize
6.4MB

Download
memory/2136-7-0x0000000000400000-0x0000000000A72000-memory.dmp

Filesize
6.4MB

Download

Analysis

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