wannacry | 091fb70b1ef1f0b15491ed0f760f1d4c232eca8fb362a8b0f0c89fe642ce448c

General

Target

2024-12-23_911f799b86fc702375905e5e6780b1fd_wannacry.exe
Size

3.6MB
MD5

911f799b86fc702375905e5e6780b1fd
SHA1

93fc06540aa8d3e7b434bb1cc89aff76bfa5acc9
SHA256

091fb70b1ef1f0b15491ed0f760f1d4c232eca8fb362a8b0f0c89fe642ce448c
SHA512

d6a7d59632b3279645c93cdcdd0308148ec9c4e0a42e6d3fac282593117ff5656a7c5d4e9262d1f9d9f33b414eb2af830c88e2a9db3d65fa187497fbc9dba12d
SSDEEP

12288:GvbLgPlu+QhMbaIMu7L5NVErCA4z2g6rTcbckPU82900Ve7zw+K+D:2bLgddQhfdmMSirYbcMNgef0

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 (3306) 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
2928	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	2024-12-23_911f799b86fc702375905e5e6780b1fd_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-12-23_911f799b86fc702375905e5e6780b1fd_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	2024-12-23_911f799b86fc702375905e5e6780b1fd_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-12-23_911f799b86fc702375905e5e6780b1fd_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{1A97A061-F170-4E4E-A967-1BFC68F0041A}\WpadDecisionTime = 80f1434f5a55db01	2024-12-23_911f799b86fc702375905e5e6780b1fd_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{1A97A061-F170-4E4E-A967-1BFC68F0041A}\WpadNetworkName = "Network 3"	2024-12-23_911f799b86fc702375905e5e6780b1fd_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-12-23_911f799b86fc702375905e5e6780b1fd_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-12-23_911f799b86fc702375905e5e6780b1fd_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-12-23_911f799b86fc702375905e5e6780b1fd_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-12-23_911f799b86fc702375905e5e6780b1fd_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-12-23_911f799b86fc702375905e5e6780b1fd_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00ba000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-12-23_911f799b86fc702375905e5e6780b1fd_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{1A97A061-F170-4E4E-A967-1BFC68F0041A}\82-e5-1d-c5-c4-52	2024-12-23_911f799b86fc702375905e5e6780b1fd_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\82-e5-1d-c5-c4-52\WpadDecisionReason = "1"	2024-12-23_911f799b86fc702375905e5e6780b1fd_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-12-23_911f799b86fc702375905e5e6780b1fd_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-12-23_911f799b86fc702375905e5e6780b1fd_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-12-23_911f799b86fc702375905e5e6780b1fd_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-12-23_911f799b86fc702375905e5e6780b1fd_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\82-e5-1d-c5-c4-52\WpadDecision = "0"	2024-12-23_911f799b86fc702375905e5e6780b1fd_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-12-23_911f799b86fc702375905e5e6780b1fd_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-12-23_911f799b86fc702375905e5e6780b1fd_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-12-23_911f799b86fc702375905e5e6780b1fd_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{1A97A061-F170-4E4E-A967-1BFC68F0041A}\WpadDecisionReason = "1"	2024-12-23_911f799b86fc702375905e5e6780b1fd_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\82-e5-1d-c5-c4-52\WpadDecisionTime = 80f1434f5a55db01	2024-12-23_911f799b86fc702375905e5e6780b1fd_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-12-23_911f799b86fc702375905e5e6780b1fd_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{1A97A061-F170-4E4E-A967-1BFC68F0041A}	2024-12-23_911f799b86fc702375905e5e6780b1fd_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{1A97A061-F170-4E4E-A967-1BFC68F0041A}\WpadDecision = "0"	2024-12-23_911f799b86fc702375905e5e6780b1fd_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\82-e5-1d-c5-c4-52	2024-12-23_911f799b86fc702375905e5e6780b1fd_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-12-23_911f799b86fc702375905e5e6780b1fd_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-23_911f799b86fc702375905e5e6780b1fd_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1620
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2928

C:\Users\Admin\AppData\Local\Temp\2024-12-23_911f799b86fc702375905e5e6780b1fd_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-12-23_911f799b86fc702375905e5e6780b1fd_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:1680

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
d5a20f521b7c6f6e8d2adb774ef07acf

SHA1
50770461f2149fadeb45fc7709ef4f175119eea0

SHA256
9be77de373e02773dcce3a82b4141795156e594b999a1dfa60172d2de4613969

SHA512
b696a3fadc41a68a88465310b2a83e5e11f5e108c844c0a3de9460626c3ce6ebfd631f8f3d8442980258ea003df729a797b9033089f64685b6bdb10d8928d420

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Analysis

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