wannacry | b57294503e24084abb135ae4723787310f7a3518b209a654945b3c4a877dbb33

General

Target

2025-02-13_43c10a4d88eb531173db7b9a29a53ba1_wannacry.exe
Size

5.0MB
MD5

43c10a4d88eb531173db7b9a29a53ba1
SHA1

ed68bbbd6bbc5becaf1b0beadf2861b55e504c19
SHA256

b57294503e24084abb135ae4723787310f7a3518b209a654945b3c4a877dbb33
SHA512

c2c7af7373ce04c44b034b6ebb9b69b38f282275a6f5926b90e1cc2a6f8d550b5d3909cbb9bfd414134fb8cb7fe6591eb027cb48054788e6e6e5216dda1d451c
SSDEEP

98304:yDqPoBhz1aRxcSUDk36SAEdhvzIx3R8yAVp2HV:yDqPe1Cxcxk3ZAEnIZR8yc4HV

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 (2743) 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
2876	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	2025-02-13_43c10a4d88eb531173db7b9a29a53ba1_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2025-02-13_43c10a4d88eb531173db7b9a29a53ba1_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	2025-02-13_43c10a4d88eb531173db7b9a29a53ba1_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-13_43c10a4d88eb531173db7b9a29a53ba1_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2025-02-13_43c10a4d88eb531173db7b9a29a53ba1_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f008c000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-02-13_43c10a4d88eb531173db7b9a29a53ba1_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8FBA2267-5B78-41C0-829C-7B4F4A793E39}\66-df-c4-54-10-ec	2025-02-13_43c10a4d88eb531173db7b9a29a53ba1_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\66-df-c4-54-10-ec\WpadDecisionTime = a0ab2dd82f7edb01	2025-02-13_43c10a4d88eb531173db7b9a29a53ba1_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2025-02-13_43c10a4d88eb531173db7b9a29a53ba1_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-02-13_43c10a4d88eb531173db7b9a29a53ba1_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2025-02-13_43c10a4d88eb531173db7b9a29a53ba1_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8FBA2267-5B78-41C0-829C-7B4F4A793E39}\WpadDecisionReason = "1"	2025-02-13_43c10a4d88eb531173db7b9a29a53ba1_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8FBA2267-5B78-41C0-829C-7B4F4A793E39}\WpadDecisionTime = a0ab2dd82f7edb01	2025-02-13_43c10a4d88eb531173db7b9a29a53ba1_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\66-df-c4-54-10-ec\WpadDecisionReason = "1"	2025-02-13_43c10a4d88eb531173db7b9a29a53ba1_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\66-df-c4-54-10-ec\WpadDecision = "0"	2025-02-13_43c10a4d88eb531173db7b9a29a53ba1_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2025-02-13_43c10a4d88eb531173db7b9a29a53ba1_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2025-02-13_43c10a4d88eb531173db7b9a29a53ba1_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2025-02-13_43c10a4d88eb531173db7b9a29a53ba1_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-02-13_43c10a4d88eb531173db7b9a29a53ba1_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2025-02-13_43c10a4d88eb531173db7b9a29a53ba1_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2025-02-13_43c10a4d88eb531173db7b9a29a53ba1_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2025-02-13_43c10a4d88eb531173db7b9a29a53ba1_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2025-02-13_43c10a4d88eb531173db7b9a29a53ba1_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2025-02-13_43c10a4d88eb531173db7b9a29a53ba1_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8FBA2267-5B78-41C0-829C-7B4F4A793E39}	2025-02-13_43c10a4d88eb531173db7b9a29a53ba1_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8FBA2267-5B78-41C0-829C-7B4F4A793E39}\WpadDecision = "0"	2025-02-13_43c10a4d88eb531173db7b9a29a53ba1_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8FBA2267-5B78-41C0-829C-7B4F4A793E39}\WpadNetworkName = "Network 3"	2025-02-13_43c10a4d88eb531173db7b9a29a53ba1_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\66-df-c4-54-10-ec	2025-02-13_43c10a4d88eb531173db7b9a29a53ba1_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2025-02-13_43c10a4d88eb531173db7b9a29a53ba1_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-13_43c10a4d88eb531173db7b9a29a53ba1_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2116
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2876

C:\Users\Admin\AppData\Local\Temp\2025-02-13_43c10a4d88eb531173db7b9a29a53ba1_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2025-02-13_43c10a4d88eb531173db7b9a29a53ba1_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2816

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
4b7d8867065d4641e8fce82ffc80acf3

SHA1
703a3f6180c265a8247268b0bfc6d900fbe7073f

SHA256
0b4c0321c263fd19aa752b1ee2ce6ba4e7777519d46a352647ff0d074e4e5b08

SHA512
ee9d10f2beab70774b193825cb9008a9c4c008a46f3e64142e70a881d3bea038246b93890dcdef48a81c25af86f34121c596f8d7e2f062a28f2f5a719c0d35de

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Analysis

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