wannacry | 35dd092d928c2c2e1481140c815cc64741a497631d41c91309afc43476a9de76

General

Target

2024-09-27_379239dc207cde61b3608328a19a63c9_wannacry.exe
Size

3.6MB
MD5

379239dc207cde61b3608328a19a63c9
SHA1

f4df6ca78bbc5e516aca1ca34c224a5d9c97ed12
SHA256

35dd092d928c2c2e1481140c815cc64741a497631d41c91309afc43476a9de76
SHA512

473c332ce612fb1bb0bce97fdf0b87d684fae719321d0996df524a5a2d371aac195eef20fa6b81da33940d2b4f07bc2fcb741620d5339958a7752e4c41cbafb2
SSDEEP

98304:yDqPoBhz1aRxcSUDk36SAd593R8yAVp2:yDqPe1Cxcxk3ZAdzR8yc4

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3273) 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
2180	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_379239dc207cde61b3608328a19a63c9_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-09-27_379239dc207cde61b3608328a19a63c9_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_379239dc207cde61b3608328a19a63c9_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-27_379239dc207cde61b3608328a19a63c9_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2C516145-FEF4-44FA-8817-A61CA3B822E3}\WpadNetworkName = "Network 3"	2024-09-27_379239dc207cde61b3608328a19a63c9_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-27_379239dc207cde61b3608328a19a63c9_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-27_379239dc207cde61b3608328a19a63c9_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-27_379239dc207cde61b3608328a19a63c9_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-27_379239dc207cde61b3608328a19a63c9_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-09-27_379239dc207cde61b3608328a19a63c9_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-09-27_379239dc207cde61b3608328a19a63c9_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-09-27_379239dc207cde61b3608328a19a63c9_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\8e-ed-f9-c3-b4-fc\WpadDecisionReason = "1"	2024-09-27_379239dc207cde61b3608328a19a63c9_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-09-27_379239dc207cde61b3608328a19a63c9_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-09-27_379239dc207cde61b3608328a19a63c9_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2C516145-FEF4-44FA-8817-A61CA3B822E3}\WpadDecision = "0"	2024-09-27_379239dc207cde61b3608328a19a63c9_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2C516145-FEF4-44FA-8817-A61CA3B822E3}\8e-ed-f9-c3-b4-fc	2024-09-27_379239dc207cde61b3608328a19a63c9_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\8e-ed-f9-c3-b4-fc\WpadDecision = "0"	2024-09-27_379239dc207cde61b3608328a19a63c9_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-09-27_379239dc207cde61b3608328a19a63c9_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-09-27_379239dc207cde61b3608328a19a63c9_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-09-27_379239dc207cde61b3608328a19a63c9_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0171000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-27_379239dc207cde61b3608328a19a63c9_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2C516145-FEF4-44FA-8817-A61CA3B822E3}\WpadDecisionReason = "1"	2024-09-27_379239dc207cde61b3608328a19a63c9_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2C516145-FEF4-44FA-8817-A61CA3B822E3}\WpadDecisionTime = 500c846afe10db01	2024-09-27_379239dc207cde61b3608328a19a63c9_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\8e-ed-f9-c3-b4-fc\WpadDecisionTime = 500c846afe10db01	2024-09-27_379239dc207cde61b3608328a19a63c9_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-09-27_379239dc207cde61b3608328a19a63c9_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2C516145-FEF4-44FA-8817-A61CA3B822E3}	2024-09-27_379239dc207cde61b3608328a19a63c9_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\8e-ed-f9-c3-b4-fc	2024-09-27_379239dc207cde61b3608328a19a63c9_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-09-27_379239dc207cde61b3608328a19a63c9_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-27_379239dc207cde61b3608328a19a63c9_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2104
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2180

C:\Users\Admin\AppData\Local\Temp\2024-09-27_379239dc207cde61b3608328a19a63c9_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-09-27_379239dc207cde61b3608328a19a63c9_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2392

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
3fe307a72988617e5a2a9d557f28d0d5

SHA1
49c343c25d8670c456b467a4eb2719895391735d

SHA256
4c017472ca0608b8160019f7d4bc0b042e106ba42d39fbc3208c760c2d4e57e3

SHA512
2cc3accac43ee2d8f06ab1901d4c4c666ac77af6e7d948895350288c8efa786f5174f185fa69161b073342dfc11b65c79da42c66e0ecea70265d4683e65a2350

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