wannacry | 0f7316c28281f8a0b3acae571cd6c6a093c8e7bff86ceb376a04b2bb1ff87933

General

Target

2024-12-19_c65dd7fc4577d203ced192f9b97b2ca3_wannacry.exe
Size

3.6MB
MD5

c65dd7fc4577d203ced192f9b97b2ca3
SHA1

6003191857fe2b1944b9f093d3c5b24a3d59d3d7
SHA256

0f7316c28281f8a0b3acae571cd6c6a093c8e7bff86ceb376a04b2bb1ff87933
SHA512

34bb680374478b2e91486e7b9a132a0c994fea23936067874237a8f94ff1f220cf114af116371a94e067d1239413f8bf8af3fac94f5b50cea7a45d904f7dcf12
SSDEEP

98304:yDqPoBhz1aRxcSUDk36SAEdhvZ593R8yAVp2HI:yDqPe1Cxcxk3ZAEFzR8yc4HI

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 (3272) 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
1072	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	2024-12-19_c65dd7fc4577d203ced192f9b97b2ca3_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-12-19_c65dd7fc4577d203ced192f9b97b2ca3_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	2024-12-19_c65dd7fc4577d203ced192f9b97b2ca3_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-12-19_c65dd7fc4577d203ced192f9b97b2ca3_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{0217EB12-0529-4B58-9CCD-AB06BC903E7F}\ca-56-0e-69-6e-1b	2024-12-19_c65dd7fc4577d203ced192f9b97b2ca3_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-12-19_c65dd7fc4577d203ced192f9b97b2ca3_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-12-19_c65dd7fc4577d203ced192f9b97b2ca3_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-12-19_c65dd7fc4577d203ced192f9b97b2ca3_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{0217EB12-0529-4B58-9CCD-AB06BC903E7F}\WpadDecisionReason = "1"	2024-12-19_c65dd7fc4577d203ced192f9b97b2ca3_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{0217EB12-0529-4B58-9CCD-AB06BC903E7F}\WpadDecision = "0"	2024-12-19_c65dd7fc4577d203ced192f9b97b2ca3_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{0217EB12-0529-4B58-9CCD-AB06BC903E7F}\WpadNetworkName = "Network 2"	2024-12-19_c65dd7fc4577d203ced192f9b97b2ca3_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-12-19_c65dd7fc4577d203ced192f9b97b2ca3_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-12-19_c65dd7fc4577d203ced192f9b97b2ca3_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-12-19_c65dd7fc4577d203ced192f9b97b2ca3_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0186000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-12-19_c65dd7fc4577d203ced192f9b97b2ca3_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{0217EB12-0529-4B58-9CCD-AB06BC903E7F}\WpadDecisionTime = e0c5786cbe51db01	2024-12-19_c65dd7fc4577d203ced192f9b97b2ca3_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ca-56-0e-69-6e-1b	2024-12-19_c65dd7fc4577d203ced192f9b97b2ca3_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ca-56-0e-69-6e-1b\WpadDecision = "0"	2024-12-19_c65dd7fc4577d203ced192f9b97b2ca3_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-12-19_c65dd7fc4577d203ced192f9b97b2ca3_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-12-19_c65dd7fc4577d203ced192f9b97b2ca3_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-12-19_c65dd7fc4577d203ced192f9b97b2ca3_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-12-19_c65dd7fc4577d203ced192f9b97b2ca3_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ca-56-0e-69-6e-1b\WpadDecisionReason = "1"	2024-12-19_c65dd7fc4577d203ced192f9b97b2ca3_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ca-56-0e-69-6e-1b\WpadDecisionTime = e0c5786cbe51db01	2024-12-19_c65dd7fc4577d203ced192f9b97b2ca3_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-12-19_c65dd7fc4577d203ced192f9b97b2ca3_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-12-19_c65dd7fc4577d203ced192f9b97b2ca3_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-12-19_c65dd7fc4577d203ced192f9b97b2ca3_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{0217EB12-0529-4B58-9CCD-AB06BC903E7F}	2024-12-19_c65dd7fc4577d203ced192f9b97b2ca3_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-12-19_c65dd7fc4577d203ced192f9b97b2ca3_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-19_c65dd7fc4577d203ced192f9b97b2ca3_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1892
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:1072

C:\Users\Admin\AppData\Local\Temp\2024-12-19_c65dd7fc4577d203ced192f9b97b2ca3_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-12-19_c65dd7fc4577d203ced192f9b97b2ca3_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2760

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
941097b26b0db94a45f3dcfe99e85737

SHA1
0f3a73e409db28a24bbed5cb721adf508461003e

SHA256
807cb16c87365600487bea65494d370a6caacc8702a45aa3538a4f896727ebd6

SHA512
68c2974cb3938628b710e7e7dd70c02c82520e18108bde6edc513bc7de3245ed04ee6e4942a8409226cf5577d4af3bc4b0e3cdf15c2650fd7a7b2725731178c0

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Analysis

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