wannacry | edcbc89843e986bcd22d23623f889100525ac6758494b106d0c1edcacbb8d460

General

Target

2024-09-23_71e9ce6a95ec08d14514fbc91d20a198_wannacry.exe
Size

5.0MB
MD5

71e9ce6a95ec08d14514fbc91d20a198
SHA1

f070787e388af4df3dc4c67c3d2bbaba0d005938
SHA256

edcbc89843e986bcd22d23623f889100525ac6758494b106d0c1edcacbb8d460
SHA512

d1784cdfda7887309048d653eba6cb7356ba64b48f9d001c91f7071321e52c81c8af3cda36ca905f4e02f133b742a1f533c8dc9affa85d68d8a87011b57e408a
SSDEEP

98304:yDqPoBhzTxcSUDk36SAvxWa9P593R8yAVp2H:yDqPeTxcxk3ZAYadzR8yc4H

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3274) 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
2892	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	2024-09-23_71e9ce6a95ec08d14514fbc91d20a198_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-09-23_71e9ce6a95ec08d14514fbc91d20a198_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	2024-09-23_71e9ce6a95ec08d14514fbc91d20a198_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-23_71e9ce6a95ec08d14514fbc91d20a198_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{006B47EC-B719-4050-A3C1-B65E019F6495}	2024-09-23_71e9ce6a95ec08d14514fbc91d20a198_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{006B47EC-B719-4050-A3C1-B65E019F6495}\WpadDecisionTime = 0012753ab80ddb01	2024-09-23_71e9ce6a95ec08d14514fbc91d20a198_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{006B47EC-B719-4050-A3C1-B65E019F6495}\WpadNetworkName = "Network 3"	2024-09-23_71e9ce6a95ec08d14514fbc91d20a198_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-23_71e9ce6a95ec08d14514fbc91d20a198_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-23_71e9ce6a95ec08d14514fbc91d20a198_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-09-23_71e9ce6a95ec08d14514fbc91d20a198_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-09-23_71e9ce6a95ec08d14514fbc91d20a198_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00ad000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-23_71e9ce6a95ec08d14514fbc91d20a198_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-23_71e9ce6a95ec08d14514fbc91d20a198_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-09-23_71e9ce6a95ec08d14514fbc91d20a198_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{006B47EC-B719-4050-A3C1-B65E019F6495}\0a-40-10-da-63-d4	2024-09-23_71e9ce6a95ec08d14514fbc91d20a198_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0a-40-10-da-63-d4\WpadDecisionReason = "1"	2024-09-23_71e9ce6a95ec08d14514fbc91d20a198_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0a-40-10-da-63-d4\WpadDecision = "0"	2024-09-23_71e9ce6a95ec08d14514fbc91d20a198_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-09-23_71e9ce6a95ec08d14514fbc91d20a198_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-23_71e9ce6a95ec08d14514fbc91d20a198_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-09-23_71e9ce6a95ec08d14514fbc91d20a198_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{006B47EC-B719-4050-A3C1-B65E019F6495}\WpadDecisionReason = "1"	2024-09-23_71e9ce6a95ec08d14514fbc91d20a198_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{006B47EC-B719-4050-A3C1-B65E019F6495}\WpadDecision = "0"	2024-09-23_71e9ce6a95ec08d14514fbc91d20a198_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0a-40-10-da-63-d4\WpadDecisionTime = 0012753ab80ddb01	2024-09-23_71e9ce6a95ec08d14514fbc91d20a198_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-09-23_71e9ce6a95ec08d14514fbc91d20a198_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-09-23_71e9ce6a95ec08d14514fbc91d20a198_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-09-23_71e9ce6a95ec08d14514fbc91d20a198_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-09-23_71e9ce6a95ec08d14514fbc91d20a198_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0a-40-10-da-63-d4	2024-09-23_71e9ce6a95ec08d14514fbc91d20a198_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-09-23_71e9ce6a95ec08d14514fbc91d20a198_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-23_71e9ce6a95ec08d14514fbc91d20a198_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2168
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2892

C:\Users\Admin\AppData\Local\Temp\2024-09-23_71e9ce6a95ec08d14514fbc91d20a198_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-09-23_71e9ce6a95ec08d14514fbc91d20a198_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2812

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
c1cac710562620c5ed1b2784518fdf1f

SHA1
3ef49cab7c4561f95496650f3aa24619749879cc

SHA256
3086a44e93c777fbf952e57884fcc00be4a043ee9aea8fdd6ddf1410e8115d1d

SHA512
ae6ee4ed5916910a2a192f92716cddcfe1615da80691bb49608496037e3df264b14ff0daf0c6745ba41cb05d19d833811fd0357a0f46afbea2467ac62b078e36

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Analysis

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