wannacry | e1bee0f7a7cd0ac8659033d9e67bfc83ae03843ed30dff8ca590f916604a6de7

General

Target

2024-08-24_90a1e06d78737b9a87e8ea42f76e2544_wannacry.exe
Size

3.6MB
MD5

90a1e06d78737b9a87e8ea42f76e2544
SHA1

785ddf8bd3add2da415cbc7c39aab7eb21407d20
SHA256

e1bee0f7a7cd0ac8659033d9e67bfc83ae03843ed30dff8ca590f916604a6de7
SHA512

40ee623eb975b3890d3e8260e76963d078a7734c040d4151fa0cf11fd6e2421f5ea609f67922a51c6df7a09f077087361586d5f40208bc97ee70531e2a3df5be
SSDEEP

49152:2nAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAARdhnvxJM0H9:yDqPoBhz1aRxcSUDk36SAEdhvxWa9

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3165) 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
1608	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	2024-08-24_90a1e06d78737b9a87e8ea42f76e2544_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-08-24_90a1e06d78737b9a87e8ea42f76e2544_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	2024-08-24_90a1e06d78737b9a87e8ea42f76e2544_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-08-24_90a1e06d78737b9a87e8ea42f76e2544_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-08-24_90a1e06d78737b9a87e8ea42f76e2544_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\9e-14-0f-1f-e1-04\WpadDecisionTime = 7060c1cc0af6da01	2024-08-24_90a1e06d78737b9a87e8ea42f76e2544_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-08-24_90a1e06d78737b9a87e8ea42f76e2544_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-08-24_90a1e06d78737b9a87e8ea42f76e2544_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-08-24_90a1e06d78737b9a87e8ea42f76e2544_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-08-24_90a1e06d78737b9a87e8ea42f76e2544_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3BF7F99E-EA00-4901-9DB9-AC5E1107BC78}\WpadDecisionTime = 7060c1cc0af6da01	2024-08-24_90a1e06d78737b9a87e8ea42f76e2544_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3BF7F99E-EA00-4901-9DB9-AC5E1107BC78}\WpadNetworkName = "Network 3"	2024-08-24_90a1e06d78737b9a87e8ea42f76e2544_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\9e-14-0f-1f-e1-04\WpadDecision = "0"	2024-08-24_90a1e06d78737b9a87e8ea42f76e2544_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\9e-14-0f-1f-e1-04\WpadDecisionReason = "1"	2024-08-24_90a1e06d78737b9a87e8ea42f76e2544_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-08-24_90a1e06d78737b9a87e8ea42f76e2544_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-08-24_90a1e06d78737b9a87e8ea42f76e2544_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-08-24_90a1e06d78737b9a87e8ea42f76e2544_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-08-24_90a1e06d78737b9a87e8ea42f76e2544_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-08-24_90a1e06d78737b9a87e8ea42f76e2544_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3BF7F99E-EA00-4901-9DB9-AC5E1107BC78}\WpadDecisionReason = "1"	2024-08-24_90a1e06d78737b9a87e8ea42f76e2544_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3BF7F99E-EA00-4901-9DB9-AC5E1107BC78}\WpadDecision = "0"	2024-08-24_90a1e06d78737b9a87e8ea42f76e2544_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-08-24_90a1e06d78737b9a87e8ea42f76e2544_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-08-24_90a1e06d78737b9a87e8ea42f76e2544_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-08-24_90a1e06d78737b9a87e8ea42f76e2544_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0076000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-08-24_90a1e06d78737b9a87e8ea42f76e2544_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3BF7F99E-EA00-4901-9DB9-AC5E1107BC78}	2024-08-24_90a1e06d78737b9a87e8ea42f76e2544_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\9e-14-0f-1f-e1-04	2024-08-24_90a1e06d78737b9a87e8ea42f76e2544_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3BF7F99E-EA00-4901-9DB9-AC5E1107BC78}\9e-14-0f-1f-e1-04	2024-08-24_90a1e06d78737b9a87e8ea42f76e2544_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-08-24_90a1e06d78737b9a87e8ea42f76e2544_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-08-24_90a1e06d78737b9a87e8ea42f76e2544_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2348
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:1608

C:\Users\Admin\AppData\Local\Temp\2024-08-24_90a1e06d78737b9a87e8ea42f76e2544_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-08-24_90a1e06d78737b9a87e8ea42f76e2544_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2776

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
0df2ae526d7350c2e3d1383c07a6be04

SHA1
06c4d41c60736ea1e0bb1b095536499e05068442

SHA256
10111f53da4181d548ea77cc91f02a15b9ede3f111f074230761f2afee7cd637

SHA512
9ca1ca36dcefdb1eba3152bc2d14c9dceb3360960338d13db5f8a02327aef80cb0ab238c2c1f3d2dbd7fd75124d4199b5cd63f173a09a0dea212ebb265f8453d

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