wannacry | 491167d2a0f36568545a1c9b3343d2d94276a12ee251833bc0255f314315f68a

General

Target

2025-02-04_26bcfee3c0f614f6936281c37382c979_wannacry.exe
Size

5.0MB
MD5

26bcfee3c0f614f6936281c37382c979
SHA1

7e5b63c24741b74fa9b742047fbfb8589763aa29
SHA256

491167d2a0f36568545a1c9b3343d2d94276a12ee251833bc0255f314315f68a
SHA512

b00ece95e62740b9a80c2e39c88efc937f2855968952a13a1af9e861e01fa1fa0f612b4f40ac17943ff15a891fd76de8ea3d2461a57d79eadae7f088d60e0376
SSDEEP

49152:XnAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAAT:XDqPoBhz1aRxcSUDk36SAY

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 (3239) 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
2768	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	2025-02-04_26bcfee3c0f614f6936281c37382c979_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2025-02-04_26bcfee3c0f614f6936281c37382c979_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	2025-02-04_26bcfee3c0f614f6936281c37382c979_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-04_26bcfee3c0f614f6936281c37382c979_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{D3273A17-4941-4CD1-88E5-64460B672636}	2025-02-04_26bcfee3c0f614f6936281c37382c979_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{D3273A17-4941-4CD1-88E5-64460B672636}\WpadDecisionReason = "1"	2025-02-04_26bcfee3c0f614f6936281c37382c979_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2025-02-04_26bcfee3c0f614f6936281c37382c979_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-02-04_26bcfee3c0f614f6936281c37382c979_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2025-02-04_26bcfee3c0f614f6936281c37382c979_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2025-02-04_26bcfee3c0f614f6936281c37382c979_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2025-02-04_26bcfee3c0f614f6936281c37382c979_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2025-02-04_26bcfee3c0f614f6936281c37382c979_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\3a-8e-39-f9-69-5b\WpadDecisionTime = a082c12ba176db01	2025-02-04_26bcfee3c0f614f6936281c37382c979_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\3a-8e-39-f9-69-5b\WpadDecision = "0"	2025-02-04_26bcfee3c0f614f6936281c37382c979_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2025-02-04_26bcfee3c0f614f6936281c37382c979_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2025-02-04_26bcfee3c0f614f6936281c37382c979_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{D3273A17-4941-4CD1-88E5-64460B672636}\WpadDecision = "0"	2025-02-04_26bcfee3c0f614f6936281c37382c979_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{D3273A17-4941-4CD1-88E5-64460B672636}\WpadNetworkName = "Network 3"	2025-02-04_26bcfee3c0f614f6936281c37382c979_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\3a-8e-39-f9-69-5b	2025-02-04_26bcfee3c0f614f6936281c37382c979_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\3a-8e-39-f9-69-5b\WpadDecisionReason = "1"	2025-02-04_26bcfee3c0f614f6936281c37382c979_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2025-02-04_26bcfee3c0f614f6936281c37382c979_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{D3273A17-4941-4CD1-88E5-64460B672636}\WpadDecisionTime = a082c12ba176db01	2025-02-04_26bcfee3c0f614f6936281c37382c979_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{D3273A17-4941-4CD1-88E5-64460B672636}\3a-8e-39-f9-69-5b	2025-02-04_26bcfee3c0f614f6936281c37382c979_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-02-04_26bcfee3c0f614f6936281c37382c979_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2025-02-04_26bcfee3c0f614f6936281c37382c979_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2025-02-04_26bcfee3c0f614f6936281c37382c979_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2025-02-04_26bcfee3c0f614f6936281c37382c979_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00ad000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-02-04_26bcfee3c0f614f6936281c37382c979_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2025-02-04_26bcfee3c0f614f6936281c37382c979_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-04_26bcfee3c0f614f6936281c37382c979_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1776
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2768

C:\Users\Admin\AppData\Local\Temp\2025-02-04_26bcfee3c0f614f6936281c37382c979_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2025-02-04_26bcfee3c0f614f6936281c37382c979_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2932

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
76d06d2096fe49ac97c2bf21709bbba4

SHA1
a7df08006ceafb441271c615c2e1d67218ba81a1

SHA256
945f2bb56bfef539d0404194bb7a7ac1f79b2307c33c8b196078c7b16bba098c

SHA512
b29a68783506989f55eaf6bf160ab285f4579e62e8ca01ad9ef3f4cfd460832a703641a52332a4880b3f8e5d5a63cde897776dd2756b9b9e930280e8dcfd0031

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