wannacry | 8cdd42dddad7b21644c82f65544f72626509c3ca644a5a85de5ee3ac953a9c04

General

Target

2024-09-29_dcd56ac87d6511c83c1eeb4cf221eb74_wannacry.exe
Size

5.0MB
MD5

dcd56ac87d6511c83c1eeb4cf221eb74
SHA1

bfd964502b2fb9e80ed169f1ccabad9e9ea32def
SHA256

8cdd42dddad7b21644c82f65544f72626509c3ca644a5a85de5ee3ac953a9c04
SHA512

4864e827c6b9e020576a0057657fecd2278177c6949a5c84d89e14f89590973234682309160fa4310c8423c9d02a9699c606a7445b2214f1ceca8619b27a5ccd
SSDEEP

24576:2bLgddQhfdmMSirYbcMNgef0QeQjG/D8kIqRYoAdNLKyAj4qrowS:2nAQqMSPbcBVQej/1INk4qroX

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3306) 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
2712	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	2024-09-29_dcd56ac87d6511c83c1eeb4cf221eb74_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-09-29_dcd56ac87d6511c83c1eeb4cf221eb74_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	2024-09-29_dcd56ac87d6511c83c1eeb4cf221eb74_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-29_dcd56ac87d6511c83c1eeb4cf221eb74_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\{5685C446-5C36-439C-8E8C-B7C7DCF45072}\WpadDecisionTime = 10a62d935812db01	2024-09-29_dcd56ac87d6511c83c1eeb4cf221eb74_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{5685C446-5C36-439C-8E8C-B7C7DCF45072}\WpadDecision = "0"	2024-09-29_dcd56ac87d6511c83c1eeb4cf221eb74_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-09-29_dcd56ac87d6511c83c1eeb4cf221eb74_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-09-29_dcd56ac87d6511c83c1eeb4cf221eb74_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-09-29_dcd56ac87d6511c83c1eeb4cf221eb74_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-09-29_dcd56ac87d6511c83c1eeb4cf221eb74_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{5685C446-5C36-439C-8E8C-B7C7DCF45072}	2024-09-29_dcd56ac87d6511c83c1eeb4cf221eb74_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\e6-a6-45-44-1f-38	2024-09-29_dcd56ac87d6511c83c1eeb4cf221eb74_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\e6-a6-45-44-1f-38\WpadDecision = "0"	2024-09-29_dcd56ac87d6511c83c1eeb4cf221eb74_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-29_dcd56ac87d6511c83c1eeb4cf221eb74_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-29_dcd56ac87d6511c83c1eeb4cf221eb74_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-09-29_dcd56ac87d6511c83c1eeb4cf221eb74_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-09-29_dcd56ac87d6511c83c1eeb4cf221eb74_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-09-29_dcd56ac87d6511c83c1eeb4cf221eb74_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f018d000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-29_dcd56ac87d6511c83c1eeb4cf221eb74_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{5685C446-5C36-439C-8E8C-B7C7DCF45072}\WpadNetworkName = "Network 3"	2024-09-29_dcd56ac87d6511c83c1eeb4cf221eb74_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{5685C446-5C36-439C-8E8C-B7C7DCF45072}\e6-a6-45-44-1f-38	2024-09-29_dcd56ac87d6511c83c1eeb4cf221eb74_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-29_dcd56ac87d6511c83c1eeb4cf221eb74_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-29_dcd56ac87d6511c83c1eeb4cf221eb74_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\e6-a6-45-44-1f-38\WpadDecisionReason = "1"	2024-09-29_dcd56ac87d6511c83c1eeb4cf221eb74_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\e6-a6-45-44-1f-38\WpadDecisionTime = 10a62d935812db01	2024-09-29_dcd56ac87d6511c83c1eeb4cf221eb74_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{5685C446-5C36-439C-8E8C-B7C7DCF45072}\WpadDecisionReason = "1"	2024-09-29_dcd56ac87d6511c83c1eeb4cf221eb74_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-09-29_dcd56ac87d6511c83c1eeb4cf221eb74_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-09-29_dcd56ac87d6511c83c1eeb4cf221eb74_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-09-29_dcd56ac87d6511c83c1eeb4cf221eb74_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-29_dcd56ac87d6511c83c1eeb4cf221eb74_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2032
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2712

C:\Users\Admin\AppData\Local\Temp\2024-09-29_dcd56ac87d6511c83c1eeb4cf221eb74_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-09-29_dcd56ac87d6511c83c1eeb4cf221eb74_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2100

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
e037c70b7dc694a386319498997bb44f

SHA1
6e85af2f387219426f60ca23d0bc272be6f2894a

SHA256
7be49d48b9704770a3904d260dbe67be3f01b6482802ce3ddec64b1113b42a51

SHA512
5a46b364772d8234711c3b36295e387a9d5646b41cdecde53d9fa3068a7ada4cefa1886569c5b7a287d98a7b7917f6d0bb6f3dd5a046e5a1c55f626d9b4b780c

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Analysis

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