wannacry | 7e930c2012d95ff6a397c45d7aa8d24540a9852c1a25f2cb25fad523e2b17222

General

Target

2024-08-21_09af2625a5671edfcab652cdfb0c2040_wannacry.exe
Size

3.6MB
MD5

09af2625a5671edfcab652cdfb0c2040
SHA1

1d61093d718dc81a655d81a7d7fff40cf01559ee
SHA256

7e930c2012d95ff6a397c45d7aa8d24540a9852c1a25f2cb25fad523e2b17222
SHA512

bd632eea1a765741cfea7877b97e661646691105a2541b8ec91fe4ccd55acaaf129c1e7558e9fdd6b980f0ba7f35ae77c26417f9e5417a3bffb7daa61d972783
SSDEEP

12288:GvbLgPluStgQbaIMu7L5NVErCA4z2g6rTcbckPU82900Ve73w+K+D85SQeuB8:2bLgdzgDdmMSirYbcMNgeL0Xk+8

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3317) 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
2820	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	2024-08-21_09af2625a5671edfcab652cdfb0c2040_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-08-21_09af2625a5671edfcab652cdfb0c2040_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	2024-08-21_09af2625a5671edfcab652cdfb0c2040_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-08-21_09af2625a5671edfcab652cdfb0c2040_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-08-21_09af2625a5671edfcab652cdfb0c2040_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-08-21_09af2625a5671edfcab652cdfb0c2040_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-08-21_09af2625a5671edfcab652cdfb0c2040_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3960EE41-C73D-4BB9-A2A3-119BA7030781}	2024-08-21_09af2625a5671edfcab652cdfb0c2040_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\62-19-2d-e3-8c-94\WpadDecisionTime = 50fc7ce2abf3da01	2024-08-21_09af2625a5671edfcab652cdfb0c2040_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-08-21_09af2625a5671edfcab652cdfb0c2040_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-08-21_09af2625a5671edfcab652cdfb0c2040_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-08-21_09af2625a5671edfcab652cdfb0c2040_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3960EE41-C73D-4BB9-A2A3-119BA7030781}\WpadDecisionReason = "1"	2024-08-21_09af2625a5671edfcab652cdfb0c2040_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3960EE41-C73D-4BB9-A2A3-119BA7030781}\WpadDecisionTime = 50fc7ce2abf3da01	2024-08-21_09af2625a5671edfcab652cdfb0c2040_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\62-19-2d-e3-8c-94\WpadDecision = "0"	2024-08-21_09af2625a5671edfcab652cdfb0c2040_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3960EE41-C73D-4BB9-A2A3-119BA7030781}\62-19-2d-e3-8c-94	2024-08-21_09af2625a5671edfcab652cdfb0c2040_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-08-21_09af2625a5671edfcab652cdfb0c2040_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-08-21_09af2625a5671edfcab652cdfb0c2040_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-08-21_09af2625a5671edfcab652cdfb0c2040_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-08-21_09af2625a5671edfcab652cdfb0c2040_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f007c000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-08-21_09af2625a5671edfcab652cdfb0c2040_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\62-19-2d-e3-8c-94	2024-08-21_09af2625a5671edfcab652cdfb0c2040_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-08-21_09af2625a5671edfcab652cdfb0c2040_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-08-21_09af2625a5671edfcab652cdfb0c2040_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-08-21_09af2625a5671edfcab652cdfb0c2040_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3960EE41-C73D-4BB9-A2A3-119BA7030781}\WpadDecision = "0"	2024-08-21_09af2625a5671edfcab652cdfb0c2040_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3960EE41-C73D-4BB9-A2A3-119BA7030781}\WpadNetworkName = "Network 3"	2024-08-21_09af2625a5671edfcab652cdfb0c2040_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\62-19-2d-e3-8c-94\WpadDecisionReason = "1"	2024-08-21_09af2625a5671edfcab652cdfb0c2040_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-08-21_09af2625a5671edfcab652cdfb0c2040_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-08-21_09af2625a5671edfcab652cdfb0c2040_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2536
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2820

C:\Users\Admin\AppData\Local\Temp\2024-08-21_09af2625a5671edfcab652cdfb0c2040_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-08-21_09af2625a5671edfcab652cdfb0c2040_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2156

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
33197b257401ffd40137dd338a01a610

SHA1
6e95185259d7f7b209a99411a42a617b843d6de3

SHA256
0aed43adfff4661b414d408b7aefa3dcbd87a516dfb82e46d4b4f5e315e6414a

SHA512
bd1b85a32c28a5295231527f38fdb59943a187369ec4333e18e796bb6b94d525507fd4105c20b853c56a428e62cb20e1864af0794cedb37d07c029b59674159f

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Analysis

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