wannacry | 505e3a369785afafe75e37efea31e86354766fca3761058679d0aad94175eb5d

General

Target

2025-02-01_4c26909b1673d91aba4e71bc14880c60_wannacry.exe
Size

5.0MB
MD5

4c26909b1673d91aba4e71bc14880c60
SHA1

6a1d4cc24650ff953542022e600ff6e9f2e91bc4
SHA256

505e3a369785afafe75e37efea31e86354766fca3761058679d0aad94175eb5d
SHA512

ed288b85f88070951dc5605d4e092a0d61344613d319c3d2f52e00279723d38695f15a885591af483b46c6abc48da8c6ab45bf7f45d10a0c99ff12ef238acfbd
SSDEEP

98304:XDqPoBhz1aRxcSUDk36SAEdhvxWa9P593R8yAVp2H:XDqPe1Cxcxk3ZAEUadzR8yc4H

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 (3278) 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
2588	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	2025-02-01_4c26909b1673d91aba4e71bc14880c60_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2025-02-01_4c26909b1673d91aba4e71bc14880c60_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	2025-02-01_4c26909b1673d91aba4e71bc14880c60_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-01_4c26909b1673d91aba4e71bc14880c60_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 = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f017c000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-02-01_4c26909b1673d91aba4e71bc14880c60_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E0103162-83A4-42A8-8A9D-44A0E3557370}\WpadDecision = "0"	2025-02-01_4c26909b1673d91aba4e71bc14880c60_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\06-c5-be-6f-5e-74\WpadDecisionTime = 5067cf46d174db01	2025-02-01_4c26909b1673d91aba4e71bc14880c60_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-02-01_4c26909b1673d91aba4e71bc14880c60_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2025-02-01_4c26909b1673d91aba4e71bc14880c60_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-02-01_4c26909b1673d91aba4e71bc14880c60_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2025-02-01_4c26909b1673d91aba4e71bc14880c60_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2025-02-01_4c26909b1673d91aba4e71bc14880c60_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\06-c5-be-6f-5e-74\WpadDecision = "0"	2025-02-01_4c26909b1673d91aba4e71bc14880c60_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2025-02-01_4c26909b1673d91aba4e71bc14880c60_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E0103162-83A4-42A8-8A9D-44A0E3557370}	2025-02-01_4c26909b1673d91aba4e71bc14880c60_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E0103162-83A4-42A8-8A9D-44A0E3557370}\WpadNetworkName = "Network 3"	2025-02-01_4c26909b1673d91aba4e71bc14880c60_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E0103162-83A4-42A8-8A9D-44A0E3557370}\WpadDecisionTime = 5067cf46d174db01	2025-02-01_4c26909b1673d91aba4e71bc14880c60_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E0103162-83A4-42A8-8A9D-44A0E3557370}\06-c5-be-6f-5e-74	2025-02-01_4c26909b1673d91aba4e71bc14880c60_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\06-c5-be-6f-5e-74\WpadDecisionReason = "1"	2025-02-01_4c26909b1673d91aba4e71bc14880c60_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2025-02-01_4c26909b1673d91aba4e71bc14880c60_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2025-02-01_4c26909b1673d91aba4e71bc14880c60_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2025-02-01_4c26909b1673d91aba4e71bc14880c60_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2025-02-01_4c26909b1673d91aba4e71bc14880c60_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E0103162-83A4-42A8-8A9D-44A0E3557370}\WpadDecisionReason = "1"	2025-02-01_4c26909b1673d91aba4e71bc14880c60_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2025-02-01_4c26909b1673d91aba4e71bc14880c60_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2025-02-01_4c26909b1673d91aba4e71bc14880c60_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2025-02-01_4c26909b1673d91aba4e71bc14880c60_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\06-c5-be-6f-5e-74	2025-02-01_4c26909b1673d91aba4e71bc14880c60_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2025-02-01_4c26909b1673d91aba4e71bc14880c60_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-01_4c26909b1673d91aba4e71bc14880c60_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2080
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2588

C:\Users\Admin\AppData\Local\Temp\2025-02-01_4c26909b1673d91aba4e71bc14880c60_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2025-02-01_4c26909b1673d91aba4e71bc14880c60_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2788

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
8a9b0d413ff272be691b1dfeeebf9778

SHA1
c609247b7ec13c76bc0b880b7ebe73b87e5d8518

SHA256
dcbff8221c309de05346cb0a51e7b0052bdd66f43343255529b03d0b825e5cf9

SHA512
dd357c812837a36854f7779613e7f2d6104a915ea8c4c6e5870faca0dc533f24e01f10eaafaa02792ba7b9d8c8fa747bca55e4d7af724cb58f7fb15ae333907d

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