wannacry | 7ff10853a16615a26f5912519335682df0e527cd220319a6dba15f1fa805679f

General

Target

2024-03-11_085a2eda5f509d08ae709fd1540e6e35_wannacry.exe
Size

3.6MB
MD5

085a2eda5f509d08ae709fd1540e6e35
SHA1

3bf2d6cc073025692645bafbd388492cd90b090f
SHA256

7ff10853a16615a26f5912519335682df0e527cd220319a6dba15f1fa805679f
SHA512

a1d5bd0e55bec90d09a816798689693197f65cb7443e3209fff163835291a28bbd946e9de5eae4e1e53cafb2b0a6fbb04b6c347938e8a0a3c97e6c2b0fe095be
SSDEEP

12288:GvbLgPlu+QhMbaIMu7L5NVErCA4z2g6rTcbckPUi:2bLgddQhfdmMSirYbcS

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3056) 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

Processes:

tasksche.exe

pid process

2536 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

pid	process
2536	tasksche.exe

Drops file in System32 directory 1 IoCs

Processes:

2024-03-11_085a2eda5f509d08ae709fd1540e6e35_wannacry.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	2024-03-11_085a2eda5f509d08ae709fd1540e6e35_wannacry.exe

Drops file in Windows directory 1 IoCs

Processes:

2024-03-11_085a2eda5f509d08ae709fd1540e6e35_wannacry.exe

description ioc process

File created C:\WINDOWS\tasksche.exe 2024-03-11_085a2eda5f509d08ae709fd1540e6e35_wannacry.exe

description	ioc	process
File created	C:\WINDOWS\tasksche.exe	2024-03-11_085a2eda5f509d08ae709fd1540e6e35_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

Processes:

2024-03-11_085a2eda5f509d08ae709fd1540e6e35_wannacry.exe

description	ioc	process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-03-11_085a2eda5f509d08ae709fd1540e6e35_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C13244AD-796B-4CAE-9F2A-0F88F25766C7}\WpadDecision = "0"	2024-03-11_085a2eda5f509d08ae709fd1540e6e35_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\92-62-53-be-e2-7c\WpadDecisionReason = "1"	2024-03-11_085a2eda5f509d08ae709fd1540e6e35_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-03-11_085a2eda5f509d08ae709fd1540e6e35_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-03-11_085a2eda5f509d08ae709fd1540e6e35_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C13244AD-796B-4CAE-9F2A-0F88F25766C7}	2024-03-11_085a2eda5f509d08ae709fd1540e6e35_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C13244AD-796B-4CAE-9F2A-0F88F25766C7}\WpadDecisionReason = "1"	2024-03-11_085a2eda5f509d08ae709fd1540e6e35_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C13244AD-796B-4CAE-9F2A-0F88F25766C7}\WpadNetworkName = "Network 3"	2024-03-11_085a2eda5f509d08ae709fd1540e6e35_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-03-11_085a2eda5f509d08ae709fd1540e6e35_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-03-11_085a2eda5f509d08ae709fd1540e6e35_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-03-11_085a2eda5f509d08ae709fd1540e6e35_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C13244AD-796B-4CAE-9F2A-0F88F25766C7}\92-62-53-be-e2-7c	2024-03-11_085a2eda5f509d08ae709fd1540e6e35_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C13244AD-796B-4CAE-9F2A-0F88F25766C7}\WpadDecisionTime = 105992c69873da01	2024-03-11_085a2eda5f509d08ae709fd1540e6e35_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\92-62-53-be-e2-7c	2024-03-11_085a2eda5f509d08ae709fd1540e6e35_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\92-62-53-be-e2-7c\WpadDecisionTime = 105992c69873da01	2024-03-11_085a2eda5f509d08ae709fd1540e6e35_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-03-11_085a2eda5f509d08ae709fd1540e6e35_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-03-11_085a2eda5f509d08ae709fd1540e6e35_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-03-11_085a2eda5f509d08ae709fd1540e6e35_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-03-11_085a2eda5f509d08ae709fd1540e6e35_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0048000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-03-11_085a2eda5f509d08ae709fd1540e6e35_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\92-62-53-be-e2-7c\WpadDecision = "0"	2024-03-11_085a2eda5f509d08ae709fd1540e6e35_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-03-11_085a2eda5f509d08ae709fd1540e6e35_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-03-11_085a2eda5f509d08ae709fd1540e6e35_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-03-11_085a2eda5f509d08ae709fd1540e6e35_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-03-11_085a2eda5f509d08ae709fd1540e6e35_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-11_085a2eda5f509d08ae709fd1540e6e35_wannacry.exe"
1⤵
- Drops file in Windows directory
PID:2368

C:\WINDOWS\tasksche.exe
C:\WINDOWS\tasksche.exe /i
2⤵
- Executes dropped EXE
PID:2536

C:\Users\Admin\AppData\Local\Temp\2024-03-11_085a2eda5f509d08ae709fd1540e6e35_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-03-11_085a2eda5f509d08ae709fd1540e6e35_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
PID:2772

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\tasksche.exe

Filesize
3.4MB

MD5
6552c6e51e566e3f3d50b1b0404d33eb

SHA1
352bd30c4c901771b5fb5812f74fd515d9857953

SHA256
2176b5d60ba1c7d03d8738a014a552c4f47c94ba11a4ed2ab79c3bda3c2f57ec

SHA512
3ddcd1f3f888f53cf196b718119272fcfb5a13c87138d8bce548ca37a7ca9289ef0b99c0d36cc085278638633fa90c0056241b250c9c4cd002e110a4d065e9f4

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