wannacry | e4d4785dc56c7d6c06c41d05ee240b3dda4e374674f3846faba95b945600f732

General

Target

2024-10-12_3919290de39a60c322117b85694079f3_wannacry.exe
Size

3.6MB
MD5

3919290de39a60c322117b85694079f3
SHA1

de79d45ab7fc158101bb3ad343946c58144986be
SHA256

e4d4785dc56c7d6c06c41d05ee240b3dda4e374674f3846faba95b945600f732
SHA512

da0c27257d4e9b6b93a25621cb9f4cda393c334bce22efc1483d1344d29526c7207ce5e8056ae605353637655c9dd5ffc4aed8648f1ba3ff04831beb257b3662
SSDEEP

98304:XDqPoBhz1aRxcSUDk36SAEdhvxWa9P593R8yAVp2Fbx:XDqPe1Cxcxk3ZAEUadzR8yc4Fbx

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3168) 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
2348	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_3919290de39a60c322117b85694079f3_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-10-12_3919290de39a60c322117b85694079f3_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_3919290de39a60c322117b85694079f3_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-12_3919290de39a60c322117b85694079f3_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\{AFE8583E-254A-4D24-B1BA-5A29A6D48CCF}\WpadDecision = "0"	2024-10-12_3919290de39a60c322117b85694079f3_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ae-45-86-c8-2d-61\WpadDecisionTime = 708eef80561cdb01	2024-10-12_3919290de39a60c322117b85694079f3_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-10-12_3919290de39a60c322117b85694079f3_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_3919290de39a60c322117b85694079f3_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_3919290de39a60c322117b85694079f3_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-10-12_3919290de39a60c322117b85694079f3_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{AFE8583E-254A-4D24-B1BA-5A29A6D48CCF}	2024-10-12_3919290de39a60c322117b85694079f3_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-12_3919290de39a60c322117b85694079f3_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-10-12_3919290de39a60c322117b85694079f3_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ae-45-86-c8-2d-61	2024-10-12_3919290de39a60c322117b85694079f3_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ae-45-86-c8-2d-61\WpadDecision = "0"	2024-10-12_3919290de39a60c322117b85694079f3_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{AFE8583E-254A-4D24-B1BA-5A29A6D48CCF}\WpadNetworkName = "Network 3"	2024-10-12_3919290de39a60c322117b85694079f3_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-12_3919290de39a60c322117b85694079f3_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-10-12_3919290de39a60c322117b85694079f3_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-10-12_3919290de39a60c322117b85694079f3_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-10-12_3919290de39a60c322117b85694079f3_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{AFE8583E-254A-4D24-B1BA-5A29A6D48CCF}\WpadDecisionTime = 708eef80561cdb01	2024-10-12_3919290de39a60c322117b85694079f3_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{AFE8583E-254A-4D24-B1BA-5A29A6D48CCF}\ae-45-86-c8-2d-61	2024-10-12_3919290de39a60c322117b85694079f3_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ae-45-86-c8-2d-61\WpadDecisionReason = "1"	2024-10-12_3919290de39a60c322117b85694079f3_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-10-12_3919290de39a60c322117b85694079f3_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-10-12_3919290de39a60c322117b85694079f3_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-10-12_3919290de39a60c322117b85694079f3_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00ea000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_3919290de39a60c322117b85694079f3_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{AFE8583E-254A-4D24-B1BA-5A29A6D48CCF}\WpadDecisionReason = "1"	2024-10-12_3919290de39a60c322117b85694079f3_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-10-12_3919290de39a60c322117b85694079f3_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-12_3919290de39a60c322117b85694079f3_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1860
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2348

C:\Users\Admin\AppData\Local\Temp\2024-10-12_3919290de39a60c322117b85694079f3_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-10-12_3919290de39a60c322117b85694079f3_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:1788

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
334d3375be9312f18aba9833663bf99e

SHA1
a85e30a1bb44242a106f442e43feba506e556aca

SHA256
730bfe4cc3977cdcd7edb076fb603200859fa8454b7c54ba58bac4f18a2da559

SHA512
da12a4230897e7b5d9006b4252eec8e9ba5927bc0aa4e85be3dcfe937438fabcc2e25b2e5ee4b4a2ef451f6332950b53f79b85435e8b32643b17fed6c54e059f

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Analysis

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