wannacry | 8cee9ce56f1a958d285d34c03cd47e1b3fa15b27dd142994f992e7b837981500

General

Target

2024-11-12_a1f604a8258ca8df0d4466fdc6b71ded_wannacry.exe
Size

3.6MB
MD5

a1f604a8258ca8df0d4466fdc6b71ded
SHA1

4ee04369b4bef78d37adfec37e01227bc2766572
SHA256

8cee9ce56f1a958d285d34c03cd47e1b3fa15b27dd142994f992e7b837981500
SHA512

43b00f08a21bc7bf074d839ad1c07aa2cdc16c08a4f9557e9dc70bafe97bd5dc52d88f9902b3fc3b6c2c7cefcaf610f860e9e23bd833e6ab8098e400b8d62162
SSDEEP

98304:XDqPoBhz1aRxcSUDkn6SAEdhvxWa9P593R8yAVp2HI:XDqPe1CxcxknZAEUadzR8yc4HI

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 (3314) 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
2576	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	2024-11-12_a1f604a8258ca8df0d4466fdc6b71ded_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-11-12_a1f604a8258ca8df0d4466fdc6b71ded_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	2024-11-12_a1f604a8258ca8df0d4466fdc6b71ded_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-11-12_a1f604a8258ca8df0d4466fdc6b71ded_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-11-12_a1f604a8258ca8df0d4466fdc6b71ded_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-11-12_a1f604a8258ca8df0d4466fdc6b71ded_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-11-12_a1f604a8258ca8df0d4466fdc6b71ded_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{859C2CBD-0691-42CE-B68F-06156E569D5F}\WpadDecisionTime = 40b9dd48ab34db01	2024-11-12_a1f604a8258ca8df0d4466fdc6b71ded_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{859C2CBD-0691-42CE-B68F-06156E569D5F}\WpadDecision = "0"	2024-11-12_a1f604a8258ca8df0d4466fdc6b71ded_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\02-5c-28-ae-b5-6a\WpadDecisionReason = "1"	2024-11-12_a1f604a8258ca8df0d4466fdc6b71ded_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-11-12_a1f604a8258ca8df0d4466fdc6b71ded_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-11-12_a1f604a8258ca8df0d4466fdc6b71ded_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-11-12_a1f604a8258ca8df0d4466fdc6b71ded_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{859C2CBD-0691-42CE-B68F-06156E569D5F}	2024-11-12_a1f604a8258ca8df0d4466fdc6b71ded_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{859C2CBD-0691-42CE-B68F-06156E569D5F}\WpadNetworkName = "Network 3"	2024-11-12_a1f604a8258ca8df0d4466fdc6b71ded_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\02-5c-28-ae-b5-6a\WpadDecisionTime = 40b9dd48ab34db01	2024-11-12_a1f604a8258ca8df0d4466fdc6b71ded_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-11-12_a1f604a8258ca8df0d4466fdc6b71ded_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{859C2CBD-0691-42CE-B68F-06156E569D5F}\WpadDecisionReason = "1"	2024-11-12_a1f604a8258ca8df0d4466fdc6b71ded_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\02-5c-28-ae-b5-6a	2024-11-12_a1f604a8258ca8df0d4466fdc6b71ded_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\02-5c-28-ae-b5-6a\WpadDecision = "0"	2024-11-12_a1f604a8258ca8df0d4466fdc6b71ded_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00e0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-11-12_a1f604a8258ca8df0d4466fdc6b71ded_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{859C2CBD-0691-42CE-B68F-06156E569D5F}\02-5c-28-ae-b5-6a	2024-11-12_a1f604a8258ca8df0d4466fdc6b71ded_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-11-12_a1f604a8258ca8df0d4466fdc6b71ded_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-11-12_a1f604a8258ca8df0d4466fdc6b71ded_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-11-12_a1f604a8258ca8df0d4466fdc6b71ded_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-11-12_a1f604a8258ca8df0d4466fdc6b71ded_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-11-12_a1f604a8258ca8df0d4466fdc6b71ded_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-11-12_a1f604a8258ca8df0d4466fdc6b71ded_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-11-12_a1f604a8258ca8df0d4466fdc6b71ded_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-12_a1f604a8258ca8df0d4466fdc6b71ded_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2756
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2576

C:\Users\Admin\AppData\Local\Temp\2024-11-12_a1f604a8258ca8df0d4466fdc6b71ded_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-11-12_a1f604a8258ca8df0d4466fdc6b71ded_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2684

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
be9858384a5352c00667fccbab091bc2

SHA1
2ffdef1cd77c680cd6b38390e29a8d1044cc51c0

SHA256
181ed2fbf4f2ed4fb186faf5d15b05e342e8f24ba5d9b7cbde786a1e70b0ca27

SHA512
ff520c4587fb44e34e92dc437c6221ce421c178e76a5f9a52826e8dd289e372d3b8ca778160efa35ebd104b32d5ce2467f549edf75aa28293fa0c736bcbec5ad

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Analysis

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