wannacry | ebbe0c2289491c8edfa59ad30f303849ab516219bdb1cceb8d6b9d8477925b0e

General

Target

2024-09-30_c2b1a52cdfaeccbba928e9da903bbe28_wannacry.exe
Size

5.0MB
MD5

c2b1a52cdfaeccbba928e9da903bbe28
SHA1

e1299cbb6f1d90f11b1ac5cb963b834e96a375d7
SHA256

ebbe0c2289491c8edfa59ad30f303849ab516219bdb1cceb8d6b9d8477925b0e
SHA512

15fd0a6089ac5c0fe745275c186f99cb5fe5028c68d739c80309e9604b389f8cb3c0cc57e65f07a002202d32174afa75a65f371ee351085e57954099fd959f73
SSDEEP

98304:yp/RxcSUZk36SAEdhvxWa9P593R8yAVp2H:y7xc7k3ZAEUadzR8yc4H

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3280) 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
2408	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 5 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	2024-09-30_c2b1a52cdfaeccbba928e9da903bbe28_wannacry.exe
File created	C:\Windows\SysWOW64\config\systemprofile\AppData\Roaming\Microsoft\Windows\Cookies\OL9SGPG8.txt	2024-09-30_c2b1a52cdfaeccbba928e9da903bbe28_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Roaming\Microsoft\Windows\Cookies\OL9SGPG8.txt	2024-09-30_c2b1a52cdfaeccbba928e9da903bbe28_wannacry.exe
File created	C:\Windows\SysWOW64\config\systemprofile\AppData\Roaming\Microsoft\Windows\Cookies\WF6FU986.txt	2024-09-30_c2b1a52cdfaeccbba928e9da903bbe28_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Roaming\Microsoft\Windows\Cookies\WF6FU986.txt	2024-09-30_c2b1a52cdfaeccbba928e9da903bbe28_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-09-30_c2b1a52cdfaeccbba928e9da903bbe28_wannacry.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2652	2408	WerFault.exe	31

System Location Discovery: System Language Discovery 1 TTPs 3 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	2024-09-30_c2b1a52cdfaeccbba928e9da903bbe28_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tasksche.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-30_c2b1a52cdfaeccbba928e9da903bbe28_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\82-4e-d3-0a-a0-2b\WpadDecisionTime = 20c3b67b1d13db01	2024-09-30_c2b1a52cdfaeccbba928e9da903bbe28_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-09-30_c2b1a52cdfaeccbba928e9da903bbe28_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-30_c2b1a52cdfaeccbba928e9da903bbe28_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-09-30_c2b1a52cdfaeccbba928e9da903bbe28_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-09-30_c2b1a52cdfaeccbba928e9da903bbe28_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E0991766-2EAC-4898-A8C3-9D3A7AF19261}\WpadDecision = "0"	2024-09-30_c2b1a52cdfaeccbba928e9da903bbe28_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E0991766-2EAC-4898-A8C3-9D3A7AF19261}\WpadDecisionReason = "1"	2024-09-30_c2b1a52cdfaeccbba928e9da903bbe28_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E0991766-2EAC-4898-A8C3-9D3A7AF19261}\WpadNetworkName = "Network 3"	2024-09-30_c2b1a52cdfaeccbba928e9da903bbe28_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E0991766-2EAC-4898-A8C3-9D3A7AF19261}\82-4e-d3-0a-a0-2b	2024-09-30_c2b1a52cdfaeccbba928e9da903bbe28_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-30_c2b1a52cdfaeccbba928e9da903bbe28_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-09-30_c2b1a52cdfaeccbba928e9da903bbe28_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-09-30_c2b1a52cdfaeccbba928e9da903bbe28_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-09-30_c2b1a52cdfaeccbba928e9da903bbe28_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00c0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-30_c2b1a52cdfaeccbba928e9da903bbe28_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E0991766-2EAC-4898-A8C3-9D3A7AF19261}\WpadDecisionTime = 20c3b67b1d13db01	2024-09-30_c2b1a52cdfaeccbba928e9da903bbe28_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\82-4e-d3-0a-a0-2b	2024-09-30_c2b1a52cdfaeccbba928e9da903bbe28_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\82-4e-d3-0a-a0-2b\WpadDecisionReason = "1"	2024-09-30_c2b1a52cdfaeccbba928e9da903bbe28_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-30_c2b1a52cdfaeccbba928e9da903bbe28_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-30_c2b1a52cdfaeccbba928e9da903bbe28_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-09-30_c2b1a52cdfaeccbba928e9da903bbe28_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-09-30_c2b1a52cdfaeccbba928e9da903bbe28_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E0991766-2EAC-4898-A8C3-9D3A7AF19261}	2024-09-30_c2b1a52cdfaeccbba928e9da903bbe28_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-09-30_c2b1a52cdfaeccbba928e9da903bbe28_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\82-4e-d3-0a-a0-2b\WpadDecision = "0"	2024-09-30_c2b1a52cdfaeccbba928e9da903bbe28_wannacry.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2648 wrote to memory of 2408	2648	2024-09-30_c2b1a52cdfaeccbba928e9da903bbe28_wannacry.exe	31
PID 2648 wrote to memory of 2408	2648	2024-09-30_c2b1a52cdfaeccbba928e9da903bbe28_wannacry.exe	31
PID 2648 wrote to memory of 2408	2648	2024-09-30_c2b1a52cdfaeccbba928e9da903bbe28_wannacry.exe	31
PID 2648 wrote to memory of 2408	2648	2024-09-30_c2b1a52cdfaeccbba928e9da903bbe28_wannacry.exe	31
PID 2408 wrote to memory of 2652	2408	tasksche.exe	32
PID 2408 wrote to memory of 2652	2408	tasksche.exe	32
PID 2408 wrote to memory of 2652	2408	tasksche.exe	32
PID 2408 wrote to memory of 2652	2408	tasksche.exe	32

C:\Users\Admin\AppData\Local\Temp\2024-09-30_c2b1a52cdfaeccbba928e9da903bbe28_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-30_c2b1a52cdfaeccbba928e9da903bbe28_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2648
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2408
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2408 -s 36
    3⤵
    - Program crash
    PID:2652

C:\Users\Admin\AppData\Local\Temp\2024-09-30_c2b1a52cdfaeccbba928e9da903bbe28_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-09-30_c2b1a52cdfaeccbba928e9da903bbe28_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2692

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

Loading Replay Monitor...

Downloads

C:\Windows\tasksche.exe

Filesize
2.0MB

MD5
334eff09b88812f86a1da0e40d5cc611

SHA1
2d2863e96a763d74bcd4f9e105d5e4420c3e4ccf

SHA256
73a96c23c79cfdea740dc9c235f537b25091b4d30ce787467a58f9246a5cb4a2

SHA512
97bdc6732e8298f344da80142f07b9b22bbbfd6f863930e249c8bffbfd8cb267d6d4c0ee42208e20203d1aa7c92354390b6ffdccfeccfbd7a07aa4323b5af593

Download Submit

Analysis

Sharing