wannacry | 1bd7c0452f249b155cbe92812a117a4b366e9e86bd7707178bd0e106c1b185bb

General

Target

2024-10-28_e8c90856e34bc026072884a6375323b1_wannacry.exe
Size

3.6MB
MD5

e8c90856e34bc026072884a6375323b1
SHA1

8ac7503d63306f795c2cdaacfa2b426bae831a03
SHA256

1bd7c0452f249b155cbe92812a117a4b366e9e86bd7707178bd0e106c1b185bb
SHA512

1758c4f47b81ffecb6ccb18ee13e1447c6a5257d1cc4e8fc2050c0bcf96f74fdbe959cb7435bd822e477c51055acec7f690458c63ae25d41aff8088aa3142f32
SSDEEP

49152:2nAQqMSPbcBVQej0x+TSqTdv6SA9vxJM0H9PAMEcxyAH1plAHI:yDqPoBhwxcSUR6SAVxWa9P5HyAVp2HI

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Wannacry family
wannacry
Contacts a large (3146) 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
2148	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	2024-10-28_e8c90856e34bc026072884a6375323b1_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-10-28_e8c90856e34bc026072884a6375323b1_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	2024-10-28_e8c90856e34bc026072884a6375323b1_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-28_e8c90856e34bc026072884a6375323b1_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{F44A5341-E86E-4E56-8F4C-A69D42956197}\WpadDecisionReason = "1"	2024-10-28_e8c90856e34bc026072884a6375323b1_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{F44A5341-E86E-4E56-8F4C-A69D42956197}\b2-03-cc-a0-48-36	2024-10-28_e8c90856e34bc026072884a6375323b1_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\b2-03-cc-a0-48-36\WpadDecisionReason = "1"	2024-10-28_e8c90856e34bc026072884a6375323b1_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-28_e8c90856e34bc026072884a6375323b1_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-10-28_e8c90856e34bc026072884a6375323b1_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-10-28_e8c90856e34bc026072884a6375323b1_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-10-28_e8c90856e34bc026072884a6375323b1_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{F44A5341-E86E-4E56-8F4C-A69D42956197}	2024-10-28_e8c90856e34bc026072884a6375323b1_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{F44A5341-E86E-4E56-8F4C-A69D42956197}\WpadDecision = "0"	2024-10-28_e8c90856e34bc026072884a6375323b1_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\b2-03-cc-a0-48-36	2024-10-28_e8c90856e34bc026072884a6375323b1_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-10-28_e8c90856e34bc026072884a6375323b1_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-28_e8c90856e34bc026072884a6375323b1_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-10-28_e8c90856e34bc026072884a6375323b1_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0086000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-28_e8c90856e34bc026072884a6375323b1_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\b2-03-cc-a0-48-36\WpadDecision = "0"	2024-10-28_e8c90856e34bc026072884a6375323b1_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-10-28_e8c90856e34bc026072884a6375323b1_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{F44A5341-E86E-4E56-8F4C-A69D42956197}\WpadDecisionTime = 60096a6a2029db01	2024-10-28_e8c90856e34bc026072884a6375323b1_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{F44A5341-E86E-4E56-8F4C-A69D42956197}\WpadNetworkName = "Network 3"	2024-10-28_e8c90856e34bc026072884a6375323b1_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\b2-03-cc-a0-48-36\WpadDecisionTime = 60096a6a2029db01	2024-10-28_e8c90856e34bc026072884a6375323b1_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-10-28_e8c90856e34bc026072884a6375323b1_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-28_e8c90856e34bc026072884a6375323b1_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-28_e8c90856e34bc026072884a6375323b1_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-10-28_e8c90856e34bc026072884a6375323b1_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-10-28_e8c90856e34bc026072884a6375323b1_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-10-28_e8c90856e34bc026072884a6375323b1_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-28_e8c90856e34bc026072884a6375323b1_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2304
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2148

C:\Users\Admin\AppData\Local\Temp\2024-10-28_e8c90856e34bc026072884a6375323b1_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-10-28_e8c90856e34bc026072884a6375323b1_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2168

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

Loading Replay Monitor...

Downloads

C:\Windows\tasksche.exe

Filesize
3.4MB

MD5
7483aed8e5a9a9dd2b5ea1821a8df609

SHA1
62b0e7d51e8cd0192a7a7a822851a9f4bd15966e

SHA256
c808ae843ab218e0a61b2d4d099cdfc6e8369e4f64b151115705d6ad449e23f9

SHA512
b279cd4452654fb34cf831734c8177a51e4105b8df6eb60da9b97e921c643be0b92977dac6d7f144214833ffab611b41346a64b37e21a49cbade7d72ebd98c7c

Download Submit

Analysis

Sharing