wannacry | bdf57a05ab02ccfd7bb5eefe6787d58c80a645d883202c2595fcd4d23e77efef

General

Target

2024-11-19_f64696a354e8f91f07a7a34d06011c9a_wannacry.exe
Size

5.0MB
MD5

f64696a354e8f91f07a7a34d06011c9a
SHA1

c1a04bcbd21d91f69a84a0b047d4019f2f5da000
SHA256

bdf57a05ab02ccfd7bb5eefe6787d58c80a645d883202c2595fcd4d23e77efef
SHA512

c3daf7152b20814834d7a0b6b6c83712023957ac170ec715d1b0aa4bc2178862d023ff2e14b3762c7987f450bb8da428675431878aed66456c7c2c68cd97dc84
SSDEEP

6144:GE9l9yUqIYVTH5DgSg8ajldktM0XXrP2QhMV9qbBLIwYQuy8DLq1eNVDvMrH:GvbLgPlu+QhMbaIMu7L5NVEr

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 (3262) 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
2700	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	2024-11-19_f64696a354e8f91f07a7a34d06011c9a_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-11-19_f64696a354e8f91f07a7a34d06011c9a_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	2024-11-19_f64696a354e8f91f07a7a34d06011c9a_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-11-19_f64696a354e8f91f07a7a34d06011c9a_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A52072B9-8B73-4E94-8029-23B5C4D705E4}\26-ee-6b-cf-59-3a	2024-11-19_f64696a354e8f91f07a7a34d06011c9a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-11-19_f64696a354e8f91f07a7a34d06011c9a_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-11-19_f64696a354e8f91f07a7a34d06011c9a_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-11-19_f64696a354e8f91f07a7a34d06011c9a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A52072B9-8B73-4E94-8029-23B5C4D705E4}	2024-11-19_f64696a354e8f91f07a7a34d06011c9a_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A52072B9-8B73-4E94-8029-23B5C4D705E4}\WpadDecisionReason = "1"	2024-11-19_f64696a354e8f91f07a7a34d06011c9a_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A52072B9-8B73-4E94-8029-23B5C4D705E4}\WpadDecisionTime = a0d9738f703adb01	2024-11-19_f64696a354e8f91f07a7a34d06011c9a_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-11-19_f64696a354e8f91f07a7a34d06011c9a_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-11-19_f64696a354e8f91f07a7a34d06011c9a_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-11-19_f64696a354e8f91f07a7a34d06011c9a_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\26-ee-6b-cf-59-3a\WpadDecision = "0"	2024-11-19_f64696a354e8f91f07a7a34d06011c9a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\26-ee-6b-cf-59-3a	2024-11-19_f64696a354e8f91f07a7a34d06011c9a_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\26-ee-6b-cf-59-3a\WpadDecisionReason = "1"	2024-11-19_f64696a354e8f91f07a7a34d06011c9a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-11-19_f64696a354e8f91f07a7a34d06011c9a_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-11-19_f64696a354e8f91f07a7a34d06011c9a_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-11-19_f64696a354e8f91f07a7a34d06011c9a_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-11-19_f64696a354e8f91f07a7a34d06011c9a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-11-19_f64696a354e8f91f07a7a34d06011c9a_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0193000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-11-19_f64696a354e8f91f07a7a34d06011c9a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-11-19_f64696a354e8f91f07a7a34d06011c9a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-11-19_f64696a354e8f91f07a7a34d06011c9a_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A52072B9-8B73-4E94-8029-23B5C4D705E4}\WpadDecision = "0"	2024-11-19_f64696a354e8f91f07a7a34d06011c9a_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A52072B9-8B73-4E94-8029-23B5C4D705E4}\WpadNetworkName = "Network 3"	2024-11-19_f64696a354e8f91f07a7a34d06011c9a_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\26-ee-6b-cf-59-3a\WpadDecisionTime = a0d9738f703adb01	2024-11-19_f64696a354e8f91f07a7a34d06011c9a_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-11-19_f64696a354e8f91f07a7a34d06011c9a_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-19_f64696a354e8f91f07a7a34d06011c9a_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2328
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2700

C:\Users\Admin\AppData\Local\Temp\2024-11-19_f64696a354e8f91f07a7a34d06011c9a_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-11-19_f64696a354e8f91f07a7a34d06011c9a_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:1928

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

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Downloads

C:\Windows\tasksche.exe

Filesize
3.4MB

MD5
34ee06c5cf271ae35c1fc5f5764a94f8

SHA1
466e86eb2af21d864f40a1812735eee69ba1ae14

SHA256
92a4ddd61a662529bebb21cf2c5a927c0f6c97fb9dc7e2677b9fbe4b2fec1a55

SHA512
c679e341b11c78cb522a7c4c105c1469172bb9316486acae04fee938dbd6fab8b0a765f153021d0132efc5c7d1ca80a1e93ad78295d9d463abd4ecf9df1c993a

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