wannacry | 87b999f41b6503e280b7ab292737de2fb2cf0b35da1e02cbfafde20671690dad

General

Target

2024-09-25_fe5072ac417a83f57144ba1d495978dc_wannacry.exe
Size

5.0MB
MD5

fe5072ac417a83f57144ba1d495978dc
SHA1

f603a57fccd345ec07aaa222296215a0a89b5fb4
SHA256

87b999f41b6503e280b7ab292737de2fb2cf0b35da1e02cbfafde20671690dad
SHA512

47811d8cdc9114d6001c3793ac36ae91fd400584c4a7c34c0ee186fda136a7a891effa609a53c7d47cdff247f4c1bb77c3c881b6580737ab54b47b549a52d6a2
SSDEEP

49152:XnAQqMSPbcBVQej/1INfrHV7YoG/QCnV:XDqPoBhz1a1Yod8V

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3232) 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
2616	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	2024-09-25_fe5072ac417a83f57144ba1d495978dc_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-09-25_fe5072ac417a83f57144ba1d495978dc_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	2024-09-25_fe5072ac417a83f57144ba1d495978dc_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-25_fe5072ac417a83f57144ba1d495978dc_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{70FE9ADA-67BA-4B2A-AAB8-44EBE407B7CD}\WpadNetworkName = "Network 3"	2024-09-25_fe5072ac417a83f57144ba1d495978dc_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-25_fe5072ac417a83f57144ba1d495978dc_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-09-25_fe5072ac417a83f57144ba1d495978dc_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-09-25_fe5072ac417a83f57144ba1d495978dc_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{70FE9ADA-67BA-4B2A-AAB8-44EBE407B7CD}	2024-09-25_fe5072ac417a83f57144ba1d495978dc_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-09-25_fe5072ac417a83f57144ba1d495978dc_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{70FE9ADA-67BA-4B2A-AAB8-44EBE407B7CD}\WpadDecisionTime = c0d13ee3320fdb01	2024-09-25_fe5072ac417a83f57144ba1d495978dc_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{70FE9ADA-67BA-4B2A-AAB8-44EBE407B7CD}\a2-ab-f2-bd-02-dc	2024-09-25_fe5072ac417a83f57144ba1d495978dc_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\a2-ab-f2-bd-02-dc\WpadDecisionReason = "1"	2024-09-25_fe5072ac417a83f57144ba1d495978dc_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-25_fe5072ac417a83f57144ba1d495978dc_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-09-25_fe5072ac417a83f57144ba1d495978dc_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-09-25_fe5072ac417a83f57144ba1d495978dc_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-09-25_fe5072ac417a83f57144ba1d495978dc_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\a2-ab-f2-bd-02-dc\WpadDecisionTime = c0d13ee3320fdb01	2024-09-25_fe5072ac417a83f57144ba1d495978dc_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-25_fe5072ac417a83f57144ba1d495978dc_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-25_fe5072ac417a83f57144ba1d495978dc_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{70FE9ADA-67BA-4B2A-AAB8-44EBE407B7CD}\WpadDecisionReason = "1"	2024-09-25_fe5072ac417a83f57144ba1d495978dc_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{70FE9ADA-67BA-4B2A-AAB8-44EBE407B7CD}\WpadDecision = "0"	2024-09-25_fe5072ac417a83f57144ba1d495978dc_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\a2-ab-f2-bd-02-dc	2024-09-25_fe5072ac417a83f57144ba1d495978dc_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\a2-ab-f2-bd-02-dc\WpadDecision = "0"	2024-09-25_fe5072ac417a83f57144ba1d495978dc_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-09-25_fe5072ac417a83f57144ba1d495978dc_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-09-25_fe5072ac417a83f57144ba1d495978dc_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-09-25_fe5072ac417a83f57144ba1d495978dc_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00eb000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-25_fe5072ac417a83f57144ba1d495978dc_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-09-25_fe5072ac417a83f57144ba1d495978dc_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-25_fe5072ac417a83f57144ba1d495978dc_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2300
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2616

C:\Users\Admin\AppData\Local\Temp\2024-09-25_fe5072ac417a83f57144ba1d495978dc_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-09-25_fe5072ac417a83f57144ba1d495978dc_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2948

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
ab90881823d87e12a08623f1e399c87e

SHA1
1b5033e30054b889b904903f5cf65c1df7ee1ce5

SHA256
2a240614f3eb2d8b0024d67c6161301d1fbb21f529712c04346857c5afd49a99

SHA512
2fc410f29ae5a6fff150d290a46abfd7ea1f6c16167be8ebdfed309820185436e0bd3cf31bbdf3883fbf78e5cf0c505e9073eab9b4f1c462f9205e04f9ea1241

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