wannacry | 8adf3e6724d5c4d1fab78bc390b7479243318c9f571a26c9a2d05b1d90cf0dbb

General

Target

2025-01-17_bbfa63f5da238170ae8d43e3a522d459_wannacry.exe
Size

5.0MB
MD5

bbfa63f5da238170ae8d43e3a522d459
SHA1

c8764218719b699ab40043bf46a9c32169d432c8
SHA256

8adf3e6724d5c4d1fab78bc390b7479243318c9f571a26c9a2d05b1d90cf0dbb
SHA512

f383cd16ecfd273f461838df744b6a3f8a1ef1e5dffa508156053e596ce62cc9bceb954989b8d2b65c54559a4c92c2eff90e4be72cd170c95cf9db333d8e02c0
SSDEEP

98304:yDpz1aRxcSUDk36SAEdhvxWa9P593R8yAVp2H:yDB1Cxcxk3ZAEUadzR8yc4H

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 (3222) 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
2900	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	2025-01-17_bbfa63f5da238170ae8d43e3a522d459_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2025-01-17_bbfa63f5da238170ae8d43e3a522d459_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	2025-01-17_bbfa63f5da238170ae8d43e3a522d459_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-17_bbfa63f5da238170ae8d43e3a522d459_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\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-17_bbfa63f5da238170ae8d43e3a522d459_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2025-01-17_bbfa63f5da238170ae8d43e3a522d459_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\1e-8d-39-a4-d8-e4\WpadDecisionTime = 50790dade068db01	2025-01-17_bbfa63f5da238170ae8d43e3a522d459_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2025-01-17_bbfa63f5da238170ae8d43e3a522d459_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2025-01-17_bbfa63f5da238170ae8d43e3a522d459_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2025-01-17_bbfa63f5da238170ae8d43e3a522d459_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2025-01-17_bbfa63f5da238170ae8d43e3a522d459_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{FA712325-9F21-45C5-9991-7CF313E4F237}\WpadNetworkName = "Network 3"	2025-01-17_bbfa63f5da238170ae8d43e3a522d459_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{FA712325-9F21-45C5-9991-7CF313E4F237}\1e-8d-39-a4-d8-e4	2025-01-17_bbfa63f5da238170ae8d43e3a522d459_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2025-01-17_bbfa63f5da238170ae8d43e3a522d459_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2025-01-17_bbfa63f5da238170ae8d43e3a522d459_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00a1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-17_bbfa63f5da238170ae8d43e3a522d459_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{FA712325-9F21-45C5-9991-7CF313E4F237}\WpadDecisionReason = "1"	2025-01-17_bbfa63f5da238170ae8d43e3a522d459_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\1e-8d-39-a4-d8-e4	2025-01-17_bbfa63f5da238170ae8d43e3a522d459_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2025-01-17_bbfa63f5da238170ae8d43e3a522d459_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2025-01-17_bbfa63f5da238170ae8d43e3a522d459_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2025-01-17_bbfa63f5da238170ae8d43e3a522d459_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{FA712325-9F21-45C5-9991-7CF313E4F237}	2025-01-17_bbfa63f5da238170ae8d43e3a522d459_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{FA712325-9F21-45C5-9991-7CF313E4F237}\WpadDecisionTime = 50790dade068db01	2025-01-17_bbfa63f5da238170ae8d43e3a522d459_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{FA712325-9F21-45C5-9991-7CF313E4F237}\WpadDecision = "0"	2025-01-17_bbfa63f5da238170ae8d43e3a522d459_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\1e-8d-39-a4-d8-e4\WpadDecisionReason = "1"	2025-01-17_bbfa63f5da238170ae8d43e3a522d459_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\1e-8d-39-a4-d8-e4\WpadDecision = "0"	2025-01-17_bbfa63f5da238170ae8d43e3a522d459_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-17_bbfa63f5da238170ae8d43e3a522d459_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2025-01-17_bbfa63f5da238170ae8d43e3a522d459_wannacry.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2068 wrote to memory of 2900	2068	2025-01-17_bbfa63f5da238170ae8d43e3a522d459_wannacry.exe	31
PID 2068 wrote to memory of 2900	2068	2025-01-17_bbfa63f5da238170ae8d43e3a522d459_wannacry.exe	31
PID 2068 wrote to memory of 2900	2068	2025-01-17_bbfa63f5da238170ae8d43e3a522d459_wannacry.exe	31
PID 2068 wrote to memory of 2900	2068	2025-01-17_bbfa63f5da238170ae8d43e3a522d459_wannacry.exe	31

C:\Users\Admin\AppData\Local\Temp\2025-01-17_bbfa63f5da238170ae8d43e3a522d459_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-17_bbfa63f5da238170ae8d43e3a522d459_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2068
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2900

C:\Users\Admin\AppData\Local\Temp\2025-01-17_bbfa63f5da238170ae8d43e3a522d459_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2025-01-17_bbfa63f5da238170ae8d43e3a522d459_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2904

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
a848c62d74569affba05ee92d4033a36

SHA1
c2139d51d68e5244cf180ec047ff501226cb77bd

SHA256
c3f5e8d93aaed9bc2fd5fea724cd35c1affacb1679c1fdbb5acd3762582eb7b8

SHA512
a0e32e8e03183ecf687f546b64882bfba104067b68f13d1f9645c9c0b3b385e96719ed81701cb335b3f053a818c44c06e7f6ca6ccda3984590bf8fe67ea61896

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