wannacry | 25d74725e84fb3dbf926ca541b085a66d40467fc8e6c9b15cebb225a3e190942

General

Target

2024-09-27_0e0815e51fc07dca36d2d4f79f067f88_wannacry.exe
Size

3.6MB
MD5

0e0815e51fc07dca36d2d4f79f067f88
SHA1

8001c4ecc10d4dc0316c52d43524e48c56db33ba
SHA256

25d74725e84fb3dbf926ca541b085a66d40467fc8e6c9b15cebb225a3e190942
SHA512

bba7af9f6033745d877c9c3a2c3c9dfb6f03631a060dd6c5647d3f38fa2d66f87c0999e2c517617006976fa12fd64bfc0a247372ed77e1ffdfb24af3d7afc2ca
SSDEEP

98304:XDqPoBhz1aRxcSUDk36SAEdhNh8R3enz5yMy5KUfVRX/YXJ/Ho0IUGL0uL:XDqPe1Cxcxk3ZAEP8R3A5y35jNRvYXJo

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3306) 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
292	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	2024-09-27_0e0815e51fc07dca36d2d4f79f067f88_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-09-27_0e0815e51fc07dca36d2d4f79f067f88_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	2024-09-27_0e0815e51fc07dca36d2d4f79f067f88_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-27_0e0815e51fc07dca36d2d4f79f067f88_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{ECCB368C-2ACD-4C95-8D23-3AE13CFBD4A1}\WpadDecision = "0"	2024-09-27_0e0815e51fc07dca36d2d4f79f067f88_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{ECCB368C-2ACD-4C95-8D23-3AE13CFBD4A1}\WpadNetworkName = "Network 3"	2024-09-27_0e0815e51fc07dca36d2d4f79f067f88_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-09-27_0e0815e51fc07dca36d2d4f79f067f88_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-09-27_0e0815e51fc07dca36d2d4f79f067f88_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-09-27_0e0815e51fc07dca36d2d4f79f067f88_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-09-27_0e0815e51fc07dca36d2d4f79f067f88_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00ba000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-27_0e0815e51fc07dca36d2d4f79f067f88_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{ECCB368C-2ACD-4C95-8D23-3AE13CFBD4A1}	2024-09-27_0e0815e51fc07dca36d2d4f79f067f88_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{ECCB368C-2ACD-4C95-8D23-3AE13CFBD4A1}\ce-8d-06-b5-65-54	2024-09-27_0e0815e51fc07dca36d2d4f79f067f88_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-27_0e0815e51fc07dca36d2d4f79f067f88_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-09-27_0e0815e51fc07dca36d2d4f79f067f88_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{ECCB368C-2ACD-4C95-8D23-3AE13CFBD4A1}\WpadDecisionReason = "1"	2024-09-27_0e0815e51fc07dca36d2d4f79f067f88_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ce-8d-06-b5-65-54\WpadDecisionTime = b0b488b2cc10db01	2024-09-27_0e0815e51fc07dca36d2d4f79f067f88_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-27_0e0815e51fc07dca36d2d4f79f067f88_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-09-27_0e0815e51fc07dca36d2d4f79f067f88_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-27_0e0815e51fc07dca36d2d4f79f067f88_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-09-27_0e0815e51fc07dca36d2d4f79f067f88_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-09-27_0e0815e51fc07dca36d2d4f79f067f88_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ce-8d-06-b5-65-54	2024-09-27_0e0815e51fc07dca36d2d4f79f067f88_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-27_0e0815e51fc07dca36d2d4f79f067f88_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-09-27_0e0815e51fc07dca36d2d4f79f067f88_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{ECCB368C-2ACD-4C95-8D23-3AE13CFBD4A1}\WpadDecisionTime = b0b488b2cc10db01	2024-09-27_0e0815e51fc07dca36d2d4f79f067f88_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ce-8d-06-b5-65-54\WpadDecisionReason = "1"	2024-09-27_0e0815e51fc07dca36d2d4f79f067f88_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ce-8d-06-b5-65-54\WpadDecision = "0"	2024-09-27_0e0815e51fc07dca36d2d4f79f067f88_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-09-27_0e0815e51fc07dca36d2d4f79f067f88_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-27_0e0815e51fc07dca36d2d4f79f067f88_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2120
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:292

C:\Users\Admin\AppData\Local\Temp\2024-09-27_0e0815e51fc07dca36d2d4f79f067f88_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-09-27_0e0815e51fc07dca36d2d4f79f067f88_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2960

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
3f5b60fbaee0bdca3713ba2c29ec3b14

SHA1
f5d174c656cc9e3016ae36d39ab081efd1121220

SHA256
949cc81b761e8406070b8471c2801840cb0251e30413126ba85fa8f92167532a

SHA512
7dd42b2d1d9201d2dad3eda428fef1ad363e1ad9c109aa4030d6eb1873e9755e045797aaa7bed4335c32af2d062089da5996cdfbdc433718b780f26b491ca0f1

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Analysis

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