wannacry | b295fda31ece80efb896f493a4fa730aa82589b4512ef2abd920608bb5638569

General

Target

2024-09-27_32be4c49ca0db4d1ca3e7cfa52c83cee_wannacry.exe
Size

3.6MB
MD5

32be4c49ca0db4d1ca3e7cfa52c83cee
SHA1

7c08aa59170177af6465bf4910095be53509497c
SHA256

b295fda31ece80efb896f493a4fa730aa82589b4512ef2abd920608bb5638569
SHA512

cd1dfb59a5cb05d8a02a777e1fb7e606bfb1f27640495f971f32b5af9c73e726997af340defd96771e4535e62eb9796931a350a5eae7c8a66128d3ef79549725
SSDEEP

98304:yDqPoBhz1aRxcSUDk36SAEdhvxWa9P5mp2HI:yDqPe1Cxcxk3ZAEUad04HI

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3321) 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
2888	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_32be4c49ca0db4d1ca3e7cfa52c83cee_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-09-27_32be4c49ca0db4d1ca3e7cfa52c83cee_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_32be4c49ca0db4d1ca3e7cfa52c83cee_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-27_32be4c49ca0db4d1ca3e7cfa52c83cee_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\{676FD05D-16E8-44A4-8448-20530FD0B79E}\WpadDecisionTime = 6015d933fe10db01	2024-09-27_32be4c49ca0db4d1ca3e7cfa52c83cee_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{676FD05D-16E8-44A4-8448-20530FD0B79E}\e2-07-da-7c-1b-b0	2024-09-27_32be4c49ca0db4d1ca3e7cfa52c83cee_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\e2-07-da-7c-1b-b0\WpadDecision = "0"	2024-09-27_32be4c49ca0db4d1ca3e7cfa52c83cee_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-09-27_32be4c49ca0db4d1ca3e7cfa52c83cee_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-09-27_32be4c49ca0db4d1ca3e7cfa52c83cee_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{676FD05D-16E8-44A4-8448-20530FD0B79E}\WpadDecisionReason = "1"	2024-09-27_32be4c49ca0db4d1ca3e7cfa52c83cee_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{676FD05D-16E8-44A4-8448-20530FD0B79E}\WpadNetworkName = "Network 3"	2024-09-27_32be4c49ca0db4d1ca3e7cfa52c83cee_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\e2-07-da-7c-1b-b0\WpadDecisionTime = 6015d933fe10db01	2024-09-27_32be4c49ca0db4d1ca3e7cfa52c83cee_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-27_32be4c49ca0db4d1ca3e7cfa52c83cee_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-27_32be4c49ca0db4d1ca3e7cfa52c83cee_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00ae000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-27_32be4c49ca0db4d1ca3e7cfa52c83cee_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{676FD05D-16E8-44A4-8448-20530FD0B79E}	2024-09-27_32be4c49ca0db4d1ca3e7cfa52c83cee_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{676FD05D-16E8-44A4-8448-20530FD0B79E}\WpadDecision = "0"	2024-09-27_32be4c49ca0db4d1ca3e7cfa52c83cee_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\e2-07-da-7c-1b-b0\WpadDecisionReason = "1"	2024-09-27_32be4c49ca0db4d1ca3e7cfa52c83cee_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-09-27_32be4c49ca0db4d1ca3e7cfa52c83cee_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-09-27_32be4c49ca0db4d1ca3e7cfa52c83cee_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-09-27_32be4c49ca0db4d1ca3e7cfa52c83cee_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-09-27_32be4c49ca0db4d1ca3e7cfa52c83cee_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-09-27_32be4c49ca0db4d1ca3e7cfa52c83cee_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-09-27_32be4c49ca0db4d1ca3e7cfa52c83cee_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\e2-07-da-7c-1b-b0	2024-09-27_32be4c49ca0db4d1ca3e7cfa52c83cee_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-27_32be4c49ca0db4d1ca3e7cfa52c83cee_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-09-27_32be4c49ca0db4d1ca3e7cfa52c83cee_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-27_32be4c49ca0db4d1ca3e7cfa52c83cee_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-09-27_32be4c49ca0db4d1ca3e7cfa52c83cee_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-27_32be4c49ca0db4d1ca3e7cfa52c83cee_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2184
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2888

C:\Users\Admin\AppData\Local\Temp\2024-09-27_32be4c49ca0db4d1ca3e7cfa52c83cee_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-09-27_32be4c49ca0db4d1ca3e7cfa52c83cee_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2548

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
7c92a38897a5584f496bf353677c4aa4

SHA1
cd99ac18043cdd952a8b29809717ed3dcb1db49c

SHA256
e19f1dbee5deac9121723f2bd55c532dcd540f8a096bf6c68d876ef3b6c00797

SHA512
d780396aad1b7d4b55b6c590e84431fe887f2a49b652b7feba3914b8c6e4760486927d63f24d610e38c5b885bd744d4dd6a1fefa7cb3163b4dbc6eea9f73ed5a

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