wannacry | f1a82bc6fe5abec25db52046368f2c32a6704f217e647ee55bf49ae99d920911

General

Target

2024-12-20_1315c62530862889c46a9955b4db7553_wannacry.exe
Size

5.0MB
MD5

1315c62530862889c46a9955b4db7553
SHA1

34ae2d8fcd85713e9efa8964d326e1f5497c69fa
SHA256

f1a82bc6fe5abec25db52046368f2c32a6704f217e647ee55bf49ae99d920911
SHA512

1990a59e0fb88de7143476b1a185213a083fe4e2c58c391311c8f82043b2027ac8126a46062aa5372636e8dcc85c723094f7e9f70cf9209e04f43d119516e4c8
SSDEEP

49152:XnAQqMSPbcBVQej/1INRx+TSqTdX1HkQ+ZROAx:XDqPoBhz1aRxcSUDkn

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Wannacry family
wannacry
Contacts a large (3132) 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
2244	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	2024-12-20_1315c62530862889c46a9955b4db7553_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-12-20_1315c62530862889c46a9955b4db7553_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	2024-12-20_1315c62530862889c46a9955b4db7553_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-12-20_1315c62530862889c46a9955b4db7553_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\56-c5-ba-58-09-b8	2024-12-20_1315c62530862889c46a9955b4db7553_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\56-c5-ba-58-09-b8\WpadDecisionTime = 5051743ecc52db01	2024-12-20_1315c62530862889c46a9955b4db7553_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-12-20_1315c62530862889c46a9955b4db7553_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E17F556E-6CCE-43C4-9277-B81CB987760F}\WpadDecisionTime = 5051743ecc52db01	2024-12-20_1315c62530862889c46a9955b4db7553_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-12-20_1315c62530862889c46a9955b4db7553_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E17F556E-6CCE-43C4-9277-B81CB987760F}\WpadDecisionReason = "1"	2024-12-20_1315c62530862889c46a9955b4db7553_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E17F556E-6CCE-43C4-9277-B81CB987760F}\56-c5-ba-58-09-b8	2024-12-20_1315c62530862889c46a9955b4db7553_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\56-c5-ba-58-09-b8\WpadDecision = "0"	2024-12-20_1315c62530862889c46a9955b4db7553_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-12-20_1315c62530862889c46a9955b4db7553_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-12-20_1315c62530862889c46a9955b4db7553_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-12-20_1315c62530862889c46a9955b4db7553_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-12-20_1315c62530862889c46a9955b4db7553_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-12-20_1315c62530862889c46a9955b4db7553_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-12-20_1315c62530862889c46a9955b4db7553_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-12-20_1315c62530862889c46a9955b4db7553_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E17F556E-6CCE-43C4-9277-B81CB987760F}\WpadDecision = "0"	2024-12-20_1315c62530862889c46a9955b4db7553_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-12-20_1315c62530862889c46a9955b4db7553_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-12-20_1315c62530862889c46a9955b4db7553_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\56-c5-ba-58-09-b8\WpadDecisionReason = "1"	2024-12-20_1315c62530862889c46a9955b4db7553_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00e9000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-12-20_1315c62530862889c46a9955b4db7553_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E17F556E-6CCE-43C4-9277-B81CB987760F}	2024-12-20_1315c62530862889c46a9955b4db7553_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E17F556E-6CCE-43C4-9277-B81CB987760F}\WpadNetworkName = "Network 3"	2024-12-20_1315c62530862889c46a9955b4db7553_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-12-20_1315c62530862889c46a9955b4db7553_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-12-20_1315c62530862889c46a9955b4db7553_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-12-20_1315c62530862889c46a9955b4db7553_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-20_1315c62530862889c46a9955b4db7553_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2364
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2244

C:\Users\Admin\AppData\Local\Temp\2024-12-20_1315c62530862889c46a9955b4db7553_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-12-20_1315c62530862889c46a9955b4db7553_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:1688

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
07ed7f5c339a0e9e7ae77fba2216adb4

SHA1
2d5a0b47fcb90b16176e1621dda9ddef0f3bafd0

SHA256
8aeb112ae32a74f2604d3a9726818d7d8b4129bd82d57b6da274deff5c7341e3

SHA512
57ecb6b8f8e7693d152ca5a3e1a4c961fc1323d81612746e332ef840c1770c0437ff4c21ff9483ef4d5f8a75b259e81e2ea6fefb75ac75c93a274c61ebd817dd

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