wannacry | a24d5c2b876622019f29b571bfb8323850ba41f897a46db31921b47d5678a90e

General

Target

2024-10-12_1b30fcbdfa563daf9c0e46789d503ad8_wannacry.exe
Size

3.6MB
MD5

1b30fcbdfa563daf9c0e46789d503ad8
SHA1

064a2af58589c26b7912e784d43119bef5dfca9c
SHA256

a24d5c2b876622019f29b571bfb8323850ba41f897a46db31921b47d5678a90e
SHA512

da396d6d2779291933092421f114b9c78a79adab7ffb58f9ef72b7a99cc7e1d27833e02a9061d74a21eaa430fdacb2ea98c290583007bfa66fa2faef13ab44ca
SSDEEP

6144:GE9l9yUqIYVTH5DgSg8ajldktM0XXrP2QhMV9qbBLIwYQuy8DLq1eNVDvMr:GvbLgPlu+QhMbaIMu7L5NVE

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3304) 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
2284	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_1b30fcbdfa563daf9c0e46789d503ad8_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-10-12_1b30fcbdfa563daf9c0e46789d503ad8_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_1b30fcbdfa563daf9c0e46789d503ad8_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-12_1b30fcbdfa563daf9c0e46789d503ad8_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-12_1b30fcbdfa563daf9c0e46789d503ad8_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-10-12_1b30fcbdfa563daf9c0e46789d503ad8_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f016e000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_1b30fcbdfa563daf9c0e46789d503ad8_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{20FBA803-0F84-44D8-A4E2-6F963A8D9FAF}\WpadDecisionReason = "1"	2024-10-12_1b30fcbdfa563daf9c0e46789d503ad8_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{20FBA803-0F84-44D8-A4E2-6F963A8D9FAF}	2024-10-12_1b30fcbdfa563daf9c0e46789d503ad8_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{20FBA803-0F84-44D8-A4E2-6F963A8D9FAF}\WpadDecisionTime = a02d027a531cdb01	2024-10-12_1b30fcbdfa563daf9c0e46789d503ad8_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\d2-9b-46-dd-47-cf\WpadDecisionReason = "1"	2024-10-12_1b30fcbdfa563daf9c0e46789d503ad8_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-12_1b30fcbdfa563daf9c0e46789d503ad8_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-10-12_1b30fcbdfa563daf9c0e46789d503ad8_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-10-12_1b30fcbdfa563daf9c0e46789d503ad8_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-10-12_1b30fcbdfa563daf9c0e46789d503ad8_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-10-12_1b30fcbdfa563daf9c0e46789d503ad8_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\d2-9b-46-dd-47-cf\WpadDecisionTime = a02d027a531cdb01	2024-10-12_1b30fcbdfa563daf9c0e46789d503ad8_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\d2-9b-46-dd-47-cf\WpadDecision = "0"	2024-10-12_1b30fcbdfa563daf9c0e46789d503ad8_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-10-12_1b30fcbdfa563daf9c0e46789d503ad8_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_1b30fcbdfa563daf9c0e46789d503ad8_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{20FBA803-0F84-44D8-A4E2-6F963A8D9FAF}\WpadDecision = "0"	2024-10-12_1b30fcbdfa563daf9c0e46789d503ad8_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\d2-9b-46-dd-47-cf	2024-10-12_1b30fcbdfa563daf9c0e46789d503ad8_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{20FBA803-0F84-44D8-A4E2-6F963A8D9FAF}\d2-9b-46-dd-47-cf	2024-10-12_1b30fcbdfa563daf9c0e46789d503ad8_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-10-12_1b30fcbdfa563daf9c0e46789d503ad8_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_1b30fcbdfa563daf9c0e46789d503ad8_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-10-12_1b30fcbdfa563daf9c0e46789d503ad8_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-10-12_1b30fcbdfa563daf9c0e46789d503ad8_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{20FBA803-0F84-44D8-A4E2-6F963A8D9FAF}\WpadNetworkName = "Network 3"	2024-10-12_1b30fcbdfa563daf9c0e46789d503ad8_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-10-12_1b30fcbdfa563daf9c0e46789d503ad8_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-12_1b30fcbdfa563daf9c0e46789d503ad8_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2528
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2284

C:\Users\Admin\AppData\Local\Temp\2024-10-12_1b30fcbdfa563daf9c0e46789d503ad8_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-10-12_1b30fcbdfa563daf9c0e46789d503ad8_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:1712

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
3fa71c6a4b9df9f6e041429d59f4f678

SHA1
0048c5f62f893516712d835755d5fc580b2e612f

SHA256
c353f52228b6a9683bcf2ebf3d4ac8e9dd0395bf4f51a5bac807f39c9cb2a610

SHA512
c6ea5a98c6b04dfd7974296ad2e4031db406af84ba6df64ddfb2bc9ab5d9d75c2d6650a0901c7e12138040a0e57fcc5949b3a3a7fe3ca911c29b35c14413788f

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