wannacry | 2362ef73ca5a5f956975d1aa5ad1f7203cb16fa9dc2df41b464fe6e71d709b2c

General

Target

2024-12-19_20c395385e1333cbc7cb19e85e7d4fa5_wannacry.exe
Size

3.6MB
MD5

20c395385e1333cbc7cb19e85e7d4fa5
SHA1

aa55ff03789fab74c839dbbe920487c7c4422fd1
SHA256

2362ef73ca5a5f956975d1aa5ad1f7203cb16fa9dc2df41b464fe6e71d709b2c
SHA512

2b8387be358254ac866ba69ec6c43c2e3be520deeb1421355277224417b8e4194881607b8af13cb577d9ad5d147277c936d2dbd5ba87c67d2bce12440fa0229d
SSDEEP

49152:XnAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAARdhnvxJM0H9:XDqPoBhz1aRxcSUDk36SAEdhvxWa9

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 (3225) 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
2140	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	2024-12-19_20c395385e1333cbc7cb19e85e7d4fa5_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-12-19_20c395385e1333cbc7cb19e85e7d4fa5_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	2024-12-19_20c395385e1333cbc7cb19e85e7d4fa5_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-12-19_20c395385e1333cbc7cb19e85e7d4fa5_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C15BB65D-4298-42DB-A24E-A43A70470983}\WpadNetworkName = "Network 3"	2024-12-19_20c395385e1333cbc7cb19e85e7d4fa5_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\f2-55-75-18-07-95\WpadDecision = "0"	2024-12-19_20c395385e1333cbc7cb19e85e7d4fa5_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-12-19_20c395385e1333cbc7cb19e85e7d4fa5_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-12-19_20c395385e1333cbc7cb19e85e7d4fa5_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-12-19_20c395385e1333cbc7cb19e85e7d4fa5_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C15BB65D-4298-42DB-A24E-A43A70470983}	2024-12-19_20c395385e1333cbc7cb19e85e7d4fa5_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C15BB65D-4298-42DB-A24E-A43A70470983}\WpadDecisionReason = "1"	2024-12-19_20c395385e1333cbc7cb19e85e7d4fa5_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C15BB65D-4298-42DB-A24E-A43A70470983}\WpadDecision = "0"	2024-12-19_20c395385e1333cbc7cb19e85e7d4fa5_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-12-19_20c395385e1333cbc7cb19e85e7d4fa5_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0091000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-12-19_20c395385e1333cbc7cb19e85e7d4fa5_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-12-19_20c395385e1333cbc7cb19e85e7d4fa5_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-12-19_20c395385e1333cbc7cb19e85e7d4fa5_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-12-19_20c395385e1333cbc7cb19e85e7d4fa5_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C15BB65D-4298-42DB-A24E-A43A70470983}\WpadDecisionTime = 4046d0410b52db01	2024-12-19_20c395385e1333cbc7cb19e85e7d4fa5_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\f2-55-75-18-07-95	2024-12-19_20c395385e1333cbc7cb19e85e7d4fa5_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C15BB65D-4298-42DB-A24E-A43A70470983}\f2-55-75-18-07-95	2024-12-19_20c395385e1333cbc7cb19e85e7d4fa5_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-12-19_20c395385e1333cbc7cb19e85e7d4fa5_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-12-19_20c395385e1333cbc7cb19e85e7d4fa5_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-12-19_20c395385e1333cbc7cb19e85e7d4fa5_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-12-19_20c395385e1333cbc7cb19e85e7d4fa5_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-12-19_20c395385e1333cbc7cb19e85e7d4fa5_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-12-19_20c395385e1333cbc7cb19e85e7d4fa5_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\f2-55-75-18-07-95\WpadDecisionReason = "1"	2024-12-19_20c395385e1333cbc7cb19e85e7d4fa5_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\f2-55-75-18-07-95\WpadDecisionTime = 4046d0410b52db01	2024-12-19_20c395385e1333cbc7cb19e85e7d4fa5_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-12-19_20c395385e1333cbc7cb19e85e7d4fa5_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-19_20c395385e1333cbc7cb19e85e7d4fa5_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2320
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2140

C:\Users\Admin\AppData\Local\Temp\2024-12-19_20c395385e1333cbc7cb19e85e7d4fa5_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-12-19_20c395385e1333cbc7cb19e85e7d4fa5_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:1628

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
6413a39652660f58e94bd988cd3d2923

SHA1
f5168a0398533eea44708601abddd5af94fc6ad7

SHA256
fe13ac817405e25cf52a375f904798b921564ecbfee5d69c82444024fb519baf

SHA512
855323f2dc5bd2c96289d5dd207c0ccf2e0dbafed741c81b69812dc17d10dfc6ea29d187826aa78f6b9863b22b0c8adc9c914521c6d4f548a64ec35f20b9f3e4

Download Submit

Analysis

Sharing