wannacry | 924f9eeca5ce2588986fb63b952a0155a94f6cab90791a3edb965327417ebc20

General

Target

2024-10-08_a31b10f53f9396112562345d261f8d7f_wannacry.exe
Size

5.0MB
MD5

a31b10f53f9396112562345d261f8d7f
SHA1

15aa84fe1acd0784da4b7ba627c29e514aad36e4
SHA256

924f9eeca5ce2588986fb63b952a0155a94f6cab90791a3edb965327417ebc20
SHA512

a67ec8a510dda734eeefc57b665f00d7e7113f39d8f0bd129c8b0ed335ac0aa70203aa308567e281bc5619024ded3d94682bc2686ce567b21271a71b81e0b314
SSDEEP

98304:yDqPoBhz1aRxcSUDk36SAEdhvxWa9P5cBXo:yDqPe1Cxcxk3ZAEUadkY

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3318) 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
2416	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	2024-10-08_a31b10f53f9396112562345d261f8d7f_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-10-08_a31b10f53f9396112562345d261f8d7f_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	2024-10-08_a31b10f53f9396112562345d261f8d7f_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-08_a31b10f53f9396112562345d261f8d7f_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\22-04-d3-71-69-2c\WpadDecisionTime = 603f7fa17619db01	2024-10-08_a31b10f53f9396112562345d261f8d7f_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-10-08_a31b10f53f9396112562345d261f8d7f_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-10-08_a31b10f53f9396112562345d261f8d7f_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-10-08_a31b10f53f9396112562345d261f8d7f_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{9BDD7137-BD17-4902-9D51-DA1826AE3301}\WpadDecisionTime = 603f7fa17619db01	2024-10-08_a31b10f53f9396112562345d261f8d7f_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{9BDD7137-BD17-4902-9D51-DA1826AE3301}\WpadDecision = "0"	2024-10-08_a31b10f53f9396112562345d261f8d7f_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{9BDD7137-BD17-4902-9D51-DA1826AE3301}\22-04-d3-71-69-2c	2024-10-08_a31b10f53f9396112562345d261f8d7f_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-08_a31b10f53f9396112562345d261f8d7f_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0101000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-08_a31b10f53f9396112562345d261f8d7f_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{9BDD7137-BD17-4902-9D51-DA1826AE3301}	2024-10-08_a31b10f53f9396112562345d261f8d7f_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{9BDD7137-BD17-4902-9D51-DA1826AE3301}\WpadDecisionReason = "1"	2024-10-08_a31b10f53f9396112562345d261f8d7f_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{9BDD7137-BD17-4902-9D51-DA1826AE3301}\WpadNetworkName = "Network 3"	2024-10-08_a31b10f53f9396112562345d261f8d7f_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\22-04-d3-71-69-2c	2024-10-08_a31b10f53f9396112562345d261f8d7f_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-10-08_a31b10f53f9396112562345d261f8d7f_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-08_a31b10f53f9396112562345d261f8d7f_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-08_a31b10f53f9396112562345d261f8d7f_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-10-08_a31b10f53f9396112562345d261f8d7f_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-10-08_a31b10f53f9396112562345d261f8d7f_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-10-08_a31b10f53f9396112562345d261f8d7f_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-08_a31b10f53f9396112562345d261f8d7f_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-10-08_a31b10f53f9396112562345d261f8d7f_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-10-08_a31b10f53f9396112562345d261f8d7f_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\22-04-d3-71-69-2c\WpadDecisionReason = "1"	2024-10-08_a31b10f53f9396112562345d261f8d7f_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\22-04-d3-71-69-2c\WpadDecision = "0"	2024-10-08_a31b10f53f9396112562345d261f8d7f_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-10-08_a31b10f53f9396112562345d261f8d7f_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-08_a31b10f53f9396112562345d261f8d7f_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:3044
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2416

C:\Users\Admin\AppData\Local\Temp\2024-10-08_a31b10f53f9396112562345d261f8d7f_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-10-08_a31b10f53f9396112562345d261f8d7f_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2280

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
5d6d5b09e3dc49d8b8cf9fb8e0b08ee2

SHA1
fac016a3d13ab9273298e41d5347bd1b2147916d

SHA256
32646a69e25ce54ba7491236947a1cf72d3803c985a296bc79fa4ef44a58ac81

SHA512
fa9bbb950a30d27c11bd5d379c134c0ff04c2200ab0573df0f66c75ab45918172a3196fd4fa68ecea143d16dde937e779d8a90981a7890b8c7a4ef33ad606073

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Analysis

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