wannacry | 4f39b7af2abc81571c2c4a1bbeb336b7828aecbfc13609e7d9fd868f47abdc69

General

Target

2024-10-12_e703af18fd99162aecb47cedf6a3c1ef_wannacry.exe
Size

3.6MB
MD5

e703af18fd99162aecb47cedf6a3c1ef
SHA1

cd3ba649a964dddbff7b48e03d8e17101fb94ecc
SHA256

4f39b7af2abc81571c2c4a1bbeb336b7828aecbfc13609e7d9fd868f47abdc69
SHA512

d99464a04c8734851a642d829a5918114967798894d50cf024f410a93d84607e125112a04a30348915185fb4394713c986f8ebc3ce97ea6836531deb09931490
SSDEEP

98304:yDqPoBhz1aRxcSUDk36SAn593R8yAVp2HI:yDqPe1Cxcxk3ZAnzR8yc4HI

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3151) 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
2728	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_e703af18fd99162aecb47cedf6a3c1ef_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-10-12_e703af18fd99162aecb47cedf6a3c1ef_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_e703af18fd99162aecb47cedf6a3c1ef_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-12_e703af18fd99162aecb47cedf6a3c1ef_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_e703af18fd99162aecb47cedf6a3c1ef_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-10-12_e703af18fd99162aecb47cedf6a3c1ef_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-10-12_e703af18fd99162aecb47cedf6a3c1ef_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{9483CAF8-8951-45AB-8058-F7CA6C5C239A}\WpadDecisionReason = "1"	2024-10-12_e703af18fd99162aecb47cedf6a3c1ef_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\56-e7-a9-ca-56-17\WpadDecisionReason = "1"	2024-10-12_e703af18fd99162aecb47cedf6a3c1ef_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{9483CAF8-8951-45AB-8058-F7CA6C5C239A}\WpadNetworkName = "Network 3"	2024-10-12_e703af18fd99162aecb47cedf6a3c1ef_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-12_e703af18fd99162aecb47cedf6a3c1ef_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_e703af18fd99162aecb47cedf6a3c1ef_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-10-12_e703af18fd99162aecb47cedf6a3c1ef_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-10-12_e703af18fd99162aecb47cedf6a3c1ef_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00ce000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_e703af18fd99162aecb47cedf6a3c1ef_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{9483CAF8-8951-45AB-8058-F7CA6C5C239A}	2024-10-12_e703af18fd99162aecb47cedf6a3c1ef_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{9483CAF8-8951-45AB-8058-F7CA6C5C239A}\WpadDecisionTime = 20bacd6d641cdb01	2024-10-12_e703af18fd99162aecb47cedf6a3c1ef_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\56-e7-a9-ca-56-17	2024-10-12_e703af18fd99162aecb47cedf6a3c1ef_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{9483CAF8-8951-45AB-8058-F7CA6C5C239A}\56-e7-a9-ca-56-17	2024-10-12_e703af18fd99162aecb47cedf6a3c1ef_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\56-e7-a9-ca-56-17\WpadDecisionTime = 20bacd6d641cdb01	2024-10-12_e703af18fd99162aecb47cedf6a3c1ef_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-12_e703af18fd99162aecb47cedf6a3c1ef_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{9483CAF8-8951-45AB-8058-F7CA6C5C239A}\WpadDecision = "0"	2024-10-12_e703af18fd99162aecb47cedf6a3c1ef_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-10-12_e703af18fd99162aecb47cedf6a3c1ef_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-10-12_e703af18fd99162aecb47cedf6a3c1ef_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-10-12_e703af18fd99162aecb47cedf6a3c1ef_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-10-12_e703af18fd99162aecb47cedf6a3c1ef_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-10-12_e703af18fd99162aecb47cedf6a3c1ef_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\56-e7-a9-ca-56-17\WpadDecision = "0"	2024-10-12_e703af18fd99162aecb47cedf6a3c1ef_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-10-12_e703af18fd99162aecb47cedf6a3c1ef_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-12_e703af18fd99162aecb47cedf6a3c1ef_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2936
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2728

C:\Users\Admin\AppData\Local\Temp\2024-10-12_e703af18fd99162aecb47cedf6a3c1ef_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-10-12_e703af18fd99162aecb47cedf6a3c1ef_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2708

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
6e9324830d72554cabe15e402bf8708a

SHA1
65765eac554f96bff88986a556f3f84eb16bb015

SHA256
54cbba6d9dee94900bd7a40467c520cd840fb28d1dcb300fa468ba7b02c93bf8

SHA512
626fdf3d440bd8f7e3e8c26a7317df22fd350617a5e18569c7a2d2a954991a242880cf5b5de63f233589e957292113bc56cfb0e2c4c92097d94b4bcf7fe097be

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