wannacry | 42417c342af0532fd134caf83af88dddb11ee97fdec4089b473d0e6f25214311

General

Target

2024-08-01_18f04c8392ddb9966c1ab66521d2bddc_wannacry.exe
Size

3.6MB
MD5

18f04c8392ddb9966c1ab66521d2bddc
SHA1

20c94935d4caebb68d52e5c3a2b85081f8f7e12a
SHA256

42417c342af0532fd134caf83af88dddb11ee97fdec4089b473d0e6f25214311
SHA512

73a6f04cf4e08cd22e3ec54ce43138f9449b0fb630d37c8545b63d8633c8a33787fe385047654c3e92d96767bb3c00b56b1c789939c81e61e1e3df868d49b447
SSDEEP

98304:yDqPoBhz1aRxcSUDk36SAEdhvxWa9P59Uc/:yDqPe1Cxcxk3ZAEUadv

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3211) 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
1312	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	2024-08-01_18f04c8392ddb9966c1ab66521d2bddc_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-08-01_18f04c8392ddb9966c1ab66521d2bddc_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	2024-08-01_18f04c8392ddb9966c1ab66521d2bddc_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-08-01_18f04c8392ddb9966c1ab66521d2bddc_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-08-01_18f04c8392ddb9966c1ab66521d2bddc_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-08-01_18f04c8392ddb9966c1ab66521d2bddc_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-08-01_18f04c8392ddb9966c1ab66521d2bddc_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-08-01_18f04c8392ddb9966c1ab66521d2bddc_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-08-01_18f04c8392ddb9966c1ab66521d2bddc_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-08-01_18f04c8392ddb9966c1ab66521d2bddc_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{0FF0E55F-CB82-461E-BBBD-B35CD53A7E64}\WpadDecisionReason = "1"	2024-08-01_18f04c8392ddb9966c1ab66521d2bddc_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-08-01_18f04c8392ddb9966c1ab66521d2bddc_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{0FF0E55F-CB82-461E-BBBD-B35CD53A7E64}\WpadNetworkName = "Network 2"	2024-08-01_18f04c8392ddb9966c1ab66521d2bddc_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\36-af-7a-01-40-49\WpadDecision = "0"	2024-08-01_18f04c8392ddb9966c1ab66521d2bddc_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{0FF0E55F-CB82-461E-BBBD-B35CD53A7E64}\WpadDecision = "0"	2024-08-01_18f04c8392ddb9966c1ab66521d2bddc_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-08-01_18f04c8392ddb9966c1ab66521d2bddc_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-08-01_18f04c8392ddb9966c1ab66521d2bddc_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{0FF0E55F-CB82-461E-BBBD-B35CD53A7E64}\WpadDecisionTime = c0f404b4f4e3da01	2024-08-01_18f04c8392ddb9966c1ab66521d2bddc_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{0FF0E55F-CB82-461E-BBBD-B35CD53A7E64}\36-af-7a-01-40-49	2024-08-01_18f04c8392ddb9966c1ab66521d2bddc_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\36-af-7a-01-40-49\WpadDecisionTime = c0f404b4f4e3da01	2024-08-01_18f04c8392ddb9966c1ab66521d2bddc_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-08-01_18f04c8392ddb9966c1ab66521d2bddc_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00e9000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-08-01_18f04c8392ddb9966c1ab66521d2bddc_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-08-01_18f04c8392ddb9966c1ab66521d2bddc_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-08-01_18f04c8392ddb9966c1ab66521d2bddc_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{0FF0E55F-CB82-461E-BBBD-B35CD53A7E64}	2024-08-01_18f04c8392ddb9966c1ab66521d2bddc_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\36-af-7a-01-40-49	2024-08-01_18f04c8392ddb9966c1ab66521d2bddc_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\36-af-7a-01-40-49\WpadDecisionReason = "1"	2024-08-01_18f04c8392ddb9966c1ab66521d2bddc_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-08-01_18f04c8392ddb9966c1ab66521d2bddc_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-08-01_18f04c8392ddb9966c1ab66521d2bddc_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-08-01_18f04c8392ddb9966c1ab66521d2bddc_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2148
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:1312

C:\Users\Admin\AppData\Local\Temp\2024-08-01_18f04c8392ddb9966c1ab66521d2bddc_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-08-01_18f04c8392ddb9966c1ab66521d2bddc_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:3016

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
ad74659274d19807cb0a7b0cf6ae30fa

SHA1
d4c1296d2103d601a01afbe77e8743fbf003953c

SHA256
8a2b7786d69d233eef682a4decc48523e9ed4e4ede7c3b0a9a190b9e6ab440e2

SHA512
9739afc769a195f93dc4037f5740ac9f72cece8c39f7e42a2440902518512d5f71d663b79c8c68da7aee8a09ea2dc2534c26b609dabc8c78c447ae1bf4a2a6ff

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Analysis

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