wannacry | e1936ea041482c937eb963d3e355025993c52e1b0110884a043271aabbe2bb65

General

Target

2025-02-16_a4cb43a162a1fe5efa33883677fccfb3_wannacry.exe
Size

5.0MB
MD5

a4cb43a162a1fe5efa33883677fccfb3
SHA1

ae81bb6e919219dc671c75641a26067ddde38cb0
SHA256

e1936ea041482c937eb963d3e355025993c52e1b0110884a043271aabbe2bb65
SHA512

32328165bd900e824c4668c64f7c84a8584349692c4ab2774e0070fae7e68f48d52aa6dcce65ec8e1a1e103feb27a05ffb790b13c1a880fb9ba4d322862d1d27
SSDEEP

24576:XbLgddQhfdmMSirYbcMNgef0QeQjG/D8kIqRYoAdNL:XnAQqMSPbcBVQej/1IN

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 (3211) 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
2648	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	2025-02-16_a4cb43a162a1fe5efa33883677fccfb3_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2025-02-16_a4cb43a162a1fe5efa33883677fccfb3_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	2025-02-16_a4cb43a162a1fe5efa33883677fccfb3_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-16_a4cb43a162a1fe5efa33883677fccfb3_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\{3326A172-8694-4A10-8B22-30CCE1B66BAA}\WpadDecisionReason = "1"	2025-02-16_a4cb43a162a1fe5efa33883677fccfb3_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\d2-af-91-8e-cc-38\WpadDecision = "0"	2025-02-16_a4cb43a162a1fe5efa33883677fccfb3_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2025-02-16_a4cb43a162a1fe5efa33883677fccfb3_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2025-02-16_a4cb43a162a1fe5efa33883677fccfb3_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2025-02-16_a4cb43a162a1fe5efa33883677fccfb3_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2025-02-16_a4cb43a162a1fe5efa33883677fccfb3_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3326A172-8694-4A10-8B22-30CCE1B66BAA}\WpadDecisionTime = 1092a32d7f80db01	2025-02-16_a4cb43a162a1fe5efa33883677fccfb3_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3326A172-8694-4A10-8B22-30CCE1B66BAA}\d2-af-91-8e-cc-38	2025-02-16_a4cb43a162a1fe5efa33883677fccfb3_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2025-02-16_a4cb43a162a1fe5efa33883677fccfb3_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-02-16_a4cb43a162a1fe5efa33883677fccfb3_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2025-02-16_a4cb43a162a1fe5efa33883677fccfb3_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00fa000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-02-16_a4cb43a162a1fe5efa33883677fccfb3_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3326A172-8694-4A10-8B22-30CCE1B66BAA}	2025-02-16_a4cb43a162a1fe5efa33883677fccfb3_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3326A172-8694-4A10-8B22-30CCE1B66BAA}\WpadDecision = "0"	2025-02-16_a4cb43a162a1fe5efa33883677fccfb3_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3326A172-8694-4A10-8B22-30CCE1B66BAA}\WpadNetworkName = "Network 3"	2025-02-16_a4cb43a162a1fe5efa33883677fccfb3_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\d2-af-91-8e-cc-38	2025-02-16_a4cb43a162a1fe5efa33883677fccfb3_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-02-16_a4cb43a162a1fe5efa33883677fccfb3_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2025-02-16_a4cb43a162a1fe5efa33883677fccfb3_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2025-02-16_a4cb43a162a1fe5efa33883677fccfb3_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2025-02-16_a4cb43a162a1fe5efa33883677fccfb3_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\d2-af-91-8e-cc-38\WpadDecisionReason = "1"	2025-02-16_a4cb43a162a1fe5efa33883677fccfb3_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\d2-af-91-8e-cc-38\WpadDecisionTime = 1092a32d7f80db01	2025-02-16_a4cb43a162a1fe5efa33883677fccfb3_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2025-02-16_a4cb43a162a1fe5efa33883677fccfb3_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2025-02-16_a4cb43a162a1fe5efa33883677fccfb3_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2025-02-16_a4cb43a162a1fe5efa33883677fccfb3_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-16_a4cb43a162a1fe5efa33883677fccfb3_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2132
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2648

C:\Users\Admin\AppData\Local\Temp\2025-02-16_a4cb43a162a1fe5efa33883677fccfb3_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2025-02-16_a4cb43a162a1fe5efa33883677fccfb3_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2672

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
6780d4dc9551b47c95541db2aa205c11

SHA1
c0757a879b66f4c516f44d9008f4f8baac061240

SHA256
fa55eb8a12896c5ee7e9aeffcbda1585d12e30e92db152343339a6c14258d50c

SHA512
98f454e5982ae785c1cb9946b6681c0c97e78663cfc52ae8e7f41fb88794aa9f20feb89492c633c97c21e43db82464ef929c0d8018f86303b1a60a85f35a9932

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Analysis

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