wannacry | 30e6809016f411cd25fed048adef4ec4f728db6f75538518afd64c2dfc2dd0c4

General

Target

2024-09-15_29f56f075282ac454d41e8ccc86399de_wannacry.exe
Size

3.6MB
MD5

29f56f075282ac454d41e8ccc86399de
SHA1

3ef1c72d42409761378acd45eb9c7dac0924e1bb
SHA256

30e6809016f411cd25fed048adef4ec4f728db6f75538518afd64c2dfc2dd0c4
SHA512

31e49197e3ca6cefdcc4a2c993deb8aa8f1ca0f281aaec24dde6d819afb7478160011088cae612a84f1b0446c456f95ccbfcfce1afcec7af364d465cf3770720
SSDEEP

98304:yDqPoBhz1aRxcSUDk36SAEdhv259Uc/YFQ:yDqPe1Cxcxk3ZAEKvX

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3328) 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
2528	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	2024-09-15_29f56f075282ac454d41e8ccc86399de_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-09-15_29f56f075282ac454d41e8ccc86399de_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	2024-09-15_29f56f075282ac454d41e8ccc86399de_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-15_29f56f075282ac454d41e8ccc86399de_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-09-15_29f56f075282ac454d41e8ccc86399de_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-09-15_29f56f075282ac454d41e8ccc86399de_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{CF9F3DDE-C07F-47BC-BBBB-D97087495001}	2024-09-15_29f56f075282ac454d41e8ccc86399de_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-15_29f56f075282ac454d41e8ccc86399de_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-15_29f56f075282ac454d41e8ccc86399de_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-15_29f56f075282ac454d41e8ccc86399de_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0104000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-15_29f56f075282ac454d41e8ccc86399de_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{CF9F3DDE-C07F-47BC-BBBB-D97087495001}\WpadDecision = "0"	2024-09-15_29f56f075282ac454d41e8ccc86399de_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\36-6a-e1-53-ba-26\WpadDecisionReason = "1"	2024-09-15_29f56f075282ac454d41e8ccc86399de_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-09-15_29f56f075282ac454d41e8ccc86399de_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-15_29f56f075282ac454d41e8ccc86399de_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-09-15_29f56f075282ac454d41e8ccc86399de_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{CF9F3DDE-C07F-47BC-BBBB-D97087495001}\WpadDecisionReason = "1"	2024-09-15_29f56f075282ac454d41e8ccc86399de_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{CF9F3DDE-C07F-47BC-BBBB-D97087495001}\36-6a-e1-53-ba-26	2024-09-15_29f56f075282ac454d41e8ccc86399de_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-09-15_29f56f075282ac454d41e8ccc86399de_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-09-15_29f56f075282ac454d41e8ccc86399de_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-09-15_29f56f075282ac454d41e8ccc86399de_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{CF9F3DDE-C07F-47BC-BBBB-D97087495001}\WpadNetworkName = "Network 3"	2024-09-15_29f56f075282ac454d41e8ccc86399de_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\36-6a-e1-53-ba-26	2024-09-15_29f56f075282ac454d41e8ccc86399de_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\36-6a-e1-53-ba-26\WpadDecisionTime = 30fb5c397307db01	2024-09-15_29f56f075282ac454d41e8ccc86399de_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\36-6a-e1-53-ba-26\WpadDecision = "0"	2024-09-15_29f56f075282ac454d41e8ccc86399de_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-09-15_29f56f075282ac454d41e8ccc86399de_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-09-15_29f56f075282ac454d41e8ccc86399de_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{CF9F3DDE-C07F-47BC-BBBB-D97087495001}\WpadDecisionTime = 30fb5c397307db01	2024-09-15_29f56f075282ac454d41e8ccc86399de_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-09-15_29f56f075282ac454d41e8ccc86399de_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-15_29f56f075282ac454d41e8ccc86399de_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1964
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2528

C:\Users\Admin\AppData\Local\Temp\2024-09-15_29f56f075282ac454d41e8ccc86399de_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-09-15_29f56f075282ac454d41e8ccc86399de_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2752

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
ca216b53faaeee16b697ff9f100213fc

SHA1
7e719c5bda20c30f7438ce5671f77b10e5778aa2

SHA256
1f604790cfbc1aa422cf97628487a2d045677cc16e65383f6e08da2c82a8b8e7

SHA512
7bac424375e2a34c0d9591560f3326c94af1757eb60a64440d808a7369f6a2962bd5fad0a4f0e8952b91006d58a6d21c1023a12045bf2224cea02d924c585bb2

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