wannacry | 6a5f20b6682d0ebed38e561b85a409aeeb80548de4d0a5b8663f5f7e6044fd77

General

Target

2025-01-06_7d669019ec355aa6d9aa67b9a6244c88_wannacry.exe
Size

2.2MB
MD5

7d669019ec355aa6d9aa67b9a6244c88
SHA1

5e8d12f6e7ea8ebe562f1bbffcdf6b5da5202d98
SHA256

6a5f20b6682d0ebed38e561b85a409aeeb80548de4d0a5b8663f5f7e6044fd77
SHA512

fa9fdedfe09bc0d255b1ec8cf2276bd464b6d0ca5f0287e619d1609327ceb382153f86475e7a05b09f8b156019644a98eafb6115620fe5c18a1c694b100485b5
SSDEEP

49152:QnpEjbcBVQej31sNRx+TSqTdX1HkQo6SAA:QpUoBhT1+RxcSUDk36SA

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 (3210) 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
1476	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 5 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	2025-01-06_7d669019ec355aa6d9aa67b9a6244c88_wannacry.exe
File created	C:\Windows\SysWOW64\config\systemprofile\AppData\Roaming\Microsoft\Windows\Cookies\0B02FHKU.txt	2025-01-06_7d669019ec355aa6d9aa67b9a6244c88_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Roaming\Microsoft\Windows\Cookies\0B02FHKU.txt	2025-01-06_7d669019ec355aa6d9aa67b9a6244c88_wannacry.exe
File created	C:\Windows\SysWOW64\config\systemprofile\AppData\Roaming\Microsoft\Windows\Cookies\JHVL0MUX.txt	2025-01-06_7d669019ec355aa6d9aa67b9a6244c88_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Roaming\Microsoft\Windows\Cookies\JHVL0MUX.txt	2025-01-06_7d669019ec355aa6d9aa67b9a6244c88_wannacry.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2025-01-06_7d669019ec355aa6d9aa67b9a6244c88_wannacry.exe
File created	C:\Windows\__tmp_rar_sfx_access_check_259441113	tasksche.exe
File created	C:\Windows\eee.exe	tasksche.exe

System Location Discovery: System Language Discovery 1 TTPs 3 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	2025-01-06_7d669019ec355aa6d9aa67b9a6244c88_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-06_7d669019ec355aa6d9aa67b9a6244c88_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tasksche.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\3a-f6-68-1a-4f-84	2025-01-06_7d669019ec355aa6d9aa67b9a6244c88_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\3a-f6-68-1a-4f-84\WpadDecisionTime = 2071b4de9360db01	2025-01-06_7d669019ec355aa6d9aa67b9a6244c88_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2025-01-06_7d669019ec355aa6d9aa67b9a6244c88_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2025-01-06_7d669019ec355aa6d9aa67b9a6244c88_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2025-01-06_7d669019ec355aa6d9aa67b9a6244c88_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C2DDDD89-2EE2-483A-940C-2419C3B5BCB3}	2025-01-06_7d669019ec355aa6d9aa67b9a6244c88_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C2DDDD89-2EE2-483A-940C-2419C3B5BCB3}\WpadDecision = "0"	2025-01-06_7d669019ec355aa6d9aa67b9a6244c88_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2025-01-06_7d669019ec355aa6d9aa67b9a6244c88_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2025-01-06_7d669019ec355aa6d9aa67b9a6244c88_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C2DDDD89-2EE2-483A-940C-2419C3B5BCB3}\WpadDecisionReason = "1"	2025-01-06_7d669019ec355aa6d9aa67b9a6244c88_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\3a-f6-68-1a-4f-84\WpadDecisionReason = "1"	2025-01-06_7d669019ec355aa6d9aa67b9a6244c88_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\3a-f6-68-1a-4f-84\WpadDecision = "0"	2025-01-06_7d669019ec355aa6d9aa67b9a6244c88_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-06_7d669019ec355aa6d9aa67b9a6244c88_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C2DDDD89-2EE2-483A-940C-2419C3B5BCB3}\WpadDecisionTime = 2071b4de9360db01	2025-01-06_7d669019ec355aa6d9aa67b9a6244c88_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2025-01-06_7d669019ec355aa6d9aa67b9a6244c88_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2025-01-06_7d669019ec355aa6d9aa67b9a6244c88_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f011d000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-06_7d669019ec355aa6d9aa67b9a6244c88_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2025-01-06_7d669019ec355aa6d9aa67b9a6244c88_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2025-01-06_7d669019ec355aa6d9aa67b9a6244c88_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-06_7d669019ec355aa6d9aa67b9a6244c88_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2025-01-06_7d669019ec355aa6d9aa67b9a6244c88_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2025-01-06_7d669019ec355aa6d9aa67b9a6244c88_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C2DDDD89-2EE2-483A-940C-2419C3B5BCB3}\WpadNetworkName = "Network 3"	2025-01-06_7d669019ec355aa6d9aa67b9a6244c88_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C2DDDD89-2EE2-483A-940C-2419C3B5BCB3}\3a-f6-68-1a-4f-84	2025-01-06_7d669019ec355aa6d9aa67b9a6244c88_wannacry.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1476	tasksche.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2040 wrote to memory of 1476	2040	2025-01-06_7d669019ec355aa6d9aa67b9a6244c88_wannacry.exe	31
PID 2040 wrote to memory of 1476	2040	2025-01-06_7d669019ec355aa6d9aa67b9a6244c88_wannacry.exe	31
PID 2040 wrote to memory of 1476	2040	2025-01-06_7d669019ec355aa6d9aa67b9a6244c88_wannacry.exe	31
PID 2040 wrote to memory of 1476	2040	2025-01-06_7d669019ec355aa6d9aa67b9a6244c88_wannacry.exe	31
PID 2040 wrote to memory of 1476	2040	2025-01-06_7d669019ec355aa6d9aa67b9a6244c88_wannacry.exe	31
PID 2040 wrote to memory of 1476	2040	2025-01-06_7d669019ec355aa6d9aa67b9a6244c88_wannacry.exe	31
PID 2040 wrote to memory of 1476	2040	2025-01-06_7d669019ec355aa6d9aa67b9a6244c88_wannacry.exe	31

C:\Users\Admin\AppData\Local\Temp\2025-01-06_7d669019ec355aa6d9aa67b9a6244c88_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-06_7d669019ec355aa6d9aa67b9a6244c88_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2040
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: GetForegroundWindowSpam
  PID:1476

C:\Users\Admin\AppData\Local\Temp\2025-01-06_7d669019ec355aa6d9aa67b9a6244c88_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2025-01-06_7d669019ec355aa6d9aa67b9a6244c88_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2368

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
2.0MB

MD5
41d0a9857e22a22a7085cc6914032cc7

SHA1
30ab9042489bb204a226d1b907ef2ad252958606

SHA256
a56939989618754ab267e088a900f3824ba7c01a38a975479ac577a11f878edd

SHA512
d175aa6a0c3f5a08e0be33aabe359c3e212c5ff03045c50eb40f7e591b08c9fec634eb2c9bde2ec597879f36f643f70478c01d4eed35629275ae36670eea2aa0

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Analysis

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