wannacry | a5cc632f9594a422eb48441396cc5cd3e8d74b7bc0367f93c7aaedd59325358e

General

Target

2024-10-12_2d9a228b92d04a45e0843db8fc4ecad7_wannacry.exe
Size

3.6MB
MD5

2d9a228b92d04a45e0843db8fc4ecad7
SHA1

436976fc01f5ca1a713d44d1ad752ef79f9db888
SHA256

a5cc632f9594a422eb48441396cc5cd3e8d74b7bc0367f93c7aaedd59325358e
SHA512

8fc3b1cfe483717f3817e6a274c1476a24e59267ce7a5690807e6b2709cf379eaf3603f15ad1bff3943f0a716c7412761a1877777194c9730edb7f894455682c
SSDEEP

98304:yDqPoBhz1aRxcSUDk36SAkhu3R8yAVp2:yDqPe1Cxcxk3ZAzR8yc4

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3237) 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
3064	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	2024-10-12_2d9a228b92d04a45e0843db8fc4ecad7_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-10-12_2d9a228b92d04a45e0843db8fc4ecad7_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	2024-10-12_2d9a228b92d04a45e0843db8fc4ecad7_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-12_2d9a228b92d04a45e0843db8fc4ecad7_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_2d9a228b92d04a45e0843db8fc4ecad7_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-10-12_2d9a228b92d04a45e0843db8fc4ecad7_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-10-12_2d9a228b92d04a45e0843db8fc4ecad7_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E562BF2F-91E8-434E-AC5E-18540F086C0B}\WpadNetworkName = "Network 3"	2024-10-12_2d9a228b92d04a45e0843db8fc4ecad7_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0e-7b-cd-83-39-fa\WpadDecisionTime = 40eab111551cdb01	2024-10-12_2d9a228b92d04a45e0843db8fc4ecad7_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-10-12_2d9a228b92d04a45e0843db8fc4ecad7_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-12_2d9a228b92d04a45e0843db8fc4ecad7_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-10-12_2d9a228b92d04a45e0843db8fc4ecad7_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0e-7b-cd-83-39-fa	2024-10-12_2d9a228b92d04a45e0843db8fc4ecad7_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-10-12_2d9a228b92d04a45e0843db8fc4ecad7_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-10-12_2d9a228b92d04a45e0843db8fc4ecad7_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E562BF2F-91E8-434E-AC5E-18540F086C0B}	2024-10-12_2d9a228b92d04a45e0843db8fc4ecad7_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0e-7b-cd-83-39-fa\WpadDecisionReason = "1"	2024-10-12_2d9a228b92d04a45e0843db8fc4ecad7_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_2d9a228b92d04a45e0843db8fc4ecad7_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-10-12_2d9a228b92d04a45e0843db8fc4ecad7_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-10-12_2d9a228b92d04a45e0843db8fc4ecad7_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00ac000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_2d9a228b92d04a45e0843db8fc4ecad7_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E562BF2F-91E8-434E-AC5E-18540F086C0B}\WpadDecisionReason = "1"	2024-10-12_2d9a228b92d04a45e0843db8fc4ecad7_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E562BF2F-91E8-434E-AC5E-18540F086C0B}\WpadDecisionTime = 40eab111551cdb01	2024-10-12_2d9a228b92d04a45e0843db8fc4ecad7_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E562BF2F-91E8-434E-AC5E-18540F086C0B}\WpadDecision = "0"	2024-10-12_2d9a228b92d04a45e0843db8fc4ecad7_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E562BF2F-91E8-434E-AC5E-18540F086C0B}\0e-7b-cd-83-39-fa	2024-10-12_2d9a228b92d04a45e0843db8fc4ecad7_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-12_2d9a228b92d04a45e0843db8fc4ecad7_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-10-12_2d9a228b92d04a45e0843db8fc4ecad7_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0e-7b-cd-83-39-fa\WpadDecision = "0"	2024-10-12_2d9a228b92d04a45e0843db8fc4ecad7_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-10-12_2d9a228b92d04a45e0843db8fc4ecad7_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-12_2d9a228b92d04a45e0843db8fc4ecad7_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1868
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:3064

C:\Users\Admin\AppData\Local\Temp\2024-10-12_2d9a228b92d04a45e0843db8fc4ecad7_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-10-12_2d9a228b92d04a45e0843db8fc4ecad7_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2292

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

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Downloads

C:\Windows\tasksche.exe

Filesize
3.4MB

MD5
f5d9b6005a003283d9ea7872589dc7a5

SHA1
9ecc991818811d57f56d1f6e674e60e6fc4fff3d

SHA256
9c46b086ccd9c526768e20f5416842ebfdc00249dbd0a07c76c56c89d65fbadb

SHA512
8dfc60ade6b3627e0ad362263fdf80041939773bd394a9c9464e13bccd40979d1bc8d7b64b04448ad107f59fc16253e03ad370e94ebc82d5201d46bb034339ac

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