wannacry | 4b7c28a20eb88331511df437b93a3689b367bba7171bd11faa3426dcd439b0d6

General

Target

2024-10-30_9c7f041deba1b147bde345d639a024c1_wannacry.exe
Size

5.0MB
MD5

9c7f041deba1b147bde345d639a024c1
SHA1

9475c1bb2410bd0e6e550f4eb8fc2f6a2bede087
SHA256

4b7c28a20eb88331511df437b93a3689b367bba7171bd11faa3426dcd439b0d6
SHA512

6a303dd8b34695ea0d32dbd0dea9550bf954e97d41d199d1963ec1f6e32ed15163cef881a124aadcd8afb3f1f05d2f186c0b2d1a64116ac4128cb2fe1ebdbf20
SSDEEP

49152:2nAQqMSPbcBKvxJM0H9PAMEcaEau3R8yAH1plAH:yDqPoBSxWa9P593R8yAVp2H

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 (3152) 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

Processes:

tasksche.exe

pid process

2888 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

pid	process
2888	tasksche.exe

Drops file in System32 directory 1 IoCs

Processes:

2024-10-30_9c7f041deba1b147bde345d639a024c1_wannacry.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	2024-10-30_9c7f041deba1b147bde345d639a024c1_wannacry.exe

Drops file in Windows directory 1 IoCs

Processes:

2024-10-30_9c7f041deba1b147bde345d639a024c1_wannacry.exe

description ioc process

File created C:\WINDOWS\tasksche.exe 2024-10-30_9c7f041deba1b147bde345d639a024c1_wannacry.exe

description	ioc	process
File created	C:\WINDOWS\tasksche.exe	2024-10-30_9c7f041deba1b147bde345d639a024c1_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

Processes:

2024-10-30_9c7f041deba1b147bde345d639a024c1_wannacry.exe2024-10-30_9c7f041deba1b147bde345d639a024c1_wannacry.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-30_9c7f041deba1b147bde345d639a024c1_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-30_9c7f041deba1b147bde345d639a024c1_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

Processes:

2024-10-30_9c7f041deba1b147bde345d639a024c1_wannacry.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-10-30_9c7f041deba1b147bde345d639a024c1_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-10-30_9c7f041deba1b147bde345d639a024c1_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{26AB04F6-76D5-4F31-BB5A-206374F87812}\WpadNetworkName = "Network 3"	2024-10-30_9c7f041deba1b147bde345d639a024c1_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\52-24-85-1a-77-7a	2024-10-30_9c7f041deba1b147bde345d639a024c1_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-30_9c7f041deba1b147bde345d639a024c1_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-30_9c7f041deba1b147bde345d639a024c1_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-30_9c7f041deba1b147bde345d639a024c1_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-10-30_9c7f041deba1b147bde345d639a024c1_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{26AB04F6-76D5-4F31-BB5A-206374F87812}\52-24-85-1a-77-7a	2024-10-30_9c7f041deba1b147bde345d639a024c1_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\52-24-85-1a-77-7a\WpadDecisionTime = f079212dfe2adb01	2024-10-30_9c7f041deba1b147bde345d639a024c1_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-30_9c7f041deba1b147bde345d639a024c1_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-10-30_9c7f041deba1b147bde345d639a024c1_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-30_9c7f041deba1b147bde345d639a024c1_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{26AB04F6-76D5-4F31-BB5A-206374F87812}\WpadDecisionTime = f079212dfe2adb01	2024-10-30_9c7f041deba1b147bde345d639a024c1_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-10-30_9c7f041deba1b147bde345d639a024c1_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-10-30_9c7f041deba1b147bde345d639a024c1_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{26AB04F6-76D5-4F31-BB5A-206374F87812}\WpadDecisionReason = "1"	2024-10-30_9c7f041deba1b147bde345d639a024c1_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\52-24-85-1a-77-7a\WpadDecisionReason = "1"	2024-10-30_9c7f041deba1b147bde345d639a024c1_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{26AB04F6-76D5-4F31-BB5A-206374F87812}\WpadDecision = "0"	2024-10-30_9c7f041deba1b147bde345d639a024c1_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\52-24-85-1a-77-7a\WpadDecision = "0"	2024-10-30_9c7f041deba1b147bde345d639a024c1_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-10-30_9c7f041deba1b147bde345d639a024c1_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-10-30_9c7f041deba1b147bde345d639a024c1_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-10-30_9c7f041deba1b147bde345d639a024c1_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{26AB04F6-76D5-4F31-BB5A-206374F87812}	2024-10-30_9c7f041deba1b147bde345d639a024c1_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-10-30_9c7f041deba1b147bde345d639a024c1_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-30_9c7f041deba1b147bde345d639a024c1_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:2888

C:\Users\Admin\AppData\Local\Temp\2024-10-30_9c7f041deba1b147bde345d639a024c1_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-10-30_9c7f041deba1b147bde345d639a024c1_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2208

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

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Downloads

C:\Windows\tasksche.exe

Filesize
3.4MB

MD5
9690157181b2643f53fcabfa11633aeb

SHA1
15e4de79dfcece9a78eb97ea1f5ec873a006c554

SHA256
881a723090a0682f70b920c24948698f319c20bf90e27e03a910a4f2048cdb2c

SHA512
7d1f10fcfb906841242e901ff52173d21ee1b8b8c8148d858a7d1f5520fb9f34eb105f1cc29a712cab0f1e98e7e22123d73d1962e97becc730de6b616be51487

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads