wannacry | 34e3aecdfc6796c92faae272325397ffc6c43378d282e6023381c8337e4ef316

General

Target

2024-10-12_817a1d8d5a06e3178f2d74b49f1e5b22_wannacry.exe
Size

3.6MB
MD5

817a1d8d5a06e3178f2d74b49f1e5b22
SHA1

b67c4155b7ad51cd3c927dcdbf0b17ccb964c792
SHA256

34e3aecdfc6796c92faae272325397ffc6c43378d282e6023381c8337e4ef316
SHA512

5eacdb56a8e90f7dfc55a679a0480ecf3f68b893860819c20a6dba4703a271930b8c8a27143befe6e048fcd4cb44794d783b4fa3cfdfa25b133d0c0aed6afbd3
SSDEEP

98304:XDqPoBhz1aRxcSUmxWa9P593R8yAVp2HI:XDqPe1CxcXadzR8yc4HI

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3050) 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
3060	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_817a1d8d5a06e3178f2d74b49f1e5b22_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-10-12_817a1d8d5a06e3178f2d74b49f1e5b22_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_817a1d8d5a06e3178f2d74b49f1e5b22_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-12_817a1d8d5a06e3178f2d74b49f1e5b22_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-12_817a1d8d5a06e3178f2d74b49f1e5b22_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-12_817a1d8d5a06e3178f2d74b49f1e5b22_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-10-12_817a1d8d5a06e3178f2d74b49f1e5b22_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-10-12_817a1d8d5a06e3178f2d74b49f1e5b22_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{4602BFA3-A14A-4FCD-8A73-44B9C48BE8CD}\WpadDecision = "0"	2024-10-12_817a1d8d5a06e3178f2d74b49f1e5b22_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{4602BFA3-A14A-4FCD-8A73-44B9C48BE8CD}\WpadNetworkName = "Network 3"	2024-10-12_817a1d8d5a06e3178f2d74b49f1e5b22_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\d6-f8-a5-9d-54-36	2024-10-12_817a1d8d5a06e3178f2d74b49f1e5b22_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\d6-f8-a5-9d-54-36\WpadDecisionReason = "1"	2024-10-12_817a1d8d5a06e3178f2d74b49f1e5b22_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-10-12_817a1d8d5a06e3178f2d74b49f1e5b22_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-10-12_817a1d8d5a06e3178f2d74b49f1e5b22_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-10-12_817a1d8d5a06e3178f2d74b49f1e5b22_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{4602BFA3-A14A-4FCD-8A73-44B9C48BE8CD}	2024-10-12_817a1d8d5a06e3178f2d74b49f1e5b22_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{4602BFA3-A14A-4FCD-8A73-44B9C48BE8CD}\WpadDecisionReason = "1"	2024-10-12_817a1d8d5a06e3178f2d74b49f1e5b22_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\d6-f8-a5-9d-54-36\WpadDecisionTime = b0083b1e591cdb01	2024-10-12_817a1d8d5a06e3178f2d74b49f1e5b22_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\d6-f8-a5-9d-54-36\WpadDecision = "0"	2024-10-12_817a1d8d5a06e3178f2d74b49f1e5b22_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_817a1d8d5a06e3178f2d74b49f1e5b22_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_817a1d8d5a06e3178f2d74b49f1e5b22_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00d3000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_817a1d8d5a06e3178f2d74b49f1e5b22_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-10-12_817a1d8d5a06e3178f2d74b49f1e5b22_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-10-12_817a1d8d5a06e3178f2d74b49f1e5b22_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-10-12_817a1d8d5a06e3178f2d74b49f1e5b22_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-10-12_817a1d8d5a06e3178f2d74b49f1e5b22_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{4602BFA3-A14A-4FCD-8A73-44B9C48BE8CD}\WpadDecisionTime = b0083b1e591cdb01	2024-10-12_817a1d8d5a06e3178f2d74b49f1e5b22_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{4602BFA3-A14A-4FCD-8A73-44B9C48BE8CD}\d6-f8-a5-9d-54-36	2024-10-12_817a1d8d5a06e3178f2d74b49f1e5b22_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-10-12_817a1d8d5a06e3178f2d74b49f1e5b22_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-12_817a1d8d5a06e3178f2d74b49f1e5b22_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2664
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:3060

C:\Users\Admin\AppData\Local\Temp\2024-10-12_817a1d8d5a06e3178f2d74b49f1e5b22_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-10-12_817a1d8d5a06e3178f2d74b49f1e5b22_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2700

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
0c795355cb044311105b83376285c127

SHA1
ce8351c9fd49b1ec19d58a442d5dfbd2b6d560a6

SHA256
1bca435f5ea4184d174406eb3c5832c4913560a91b0b345be27b390be8b490af

SHA512
555e3a279663b5cd35fd6c7ebd6704f386b8421fefabaa400a3bd4699e16256cf20d7ae338a2f8124b722dc81c07262998803e8ea6365d6997f0fe06ae8b3a97

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Analysis

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