wannacry | 0c5a73ec4ff9ed5fa0300b75690acf44536c324ad43f80cb383a9ec6d1929df2

General

Target

2024-09-15_e8813239d34ba23cd225cc86d7a685be_wannacry.exe
Size

3.6MB
MD5

e8813239d34ba23cd225cc86d7a685be
SHA1

cd40920c1d5117e0bab771432952a450c04ef07e
SHA256

0c5a73ec4ff9ed5fa0300b75690acf44536c324ad43f80cb383a9ec6d1929df2
SHA512

3d275b8ad3d91b308550cd660e20b449128c68ad252baaf549c97173e1f1a8d403dc145877d2f09d7c858093610ca6c1649054518b1ace9aeef917215a29e056
SSDEEP

24576:2bLgddQhfdmMSirYbcMNgef0QeQjG/D8kIq+C+9XEkI:2nAQqMSPbcBVQej/0I

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3327) 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
876	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_e8813239d34ba23cd225cc86d7a685be_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-09-15_e8813239d34ba23cd225cc86d7a685be_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_e8813239d34ba23cd225cc86d7a685be_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-15_e8813239d34ba23cd225cc86d7a685be_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-15_e8813239d34ba23cd225cc86d7a685be_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-15_e8813239d34ba23cd225cc86d7a685be_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\22-04-d7-ab-c9-9e	2024-09-15_e8813239d34ba23cd225cc86d7a685be_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{4D17E3BB-C0ED-4567-889F-8686FFC25CAC}\WpadDecisionReason = "1"	2024-09-15_e8813239d34ba23cd225cc86d7a685be_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{4D17E3BB-C0ED-4567-889F-8686FFC25CAC}\WpadNetworkName = "Network 3"	2024-09-15_e8813239d34ba23cd225cc86d7a685be_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-15_e8813239d34ba23cd225cc86d7a685be_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-09-15_e8813239d34ba23cd225cc86d7a685be_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-09-15_e8813239d34ba23cd225cc86d7a685be_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-09-15_e8813239d34ba23cd225cc86d7a685be_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-09-15_e8813239d34ba23cd225cc86d7a685be_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-09-15_e8813239d34ba23cd225cc86d7a685be_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\22-04-d7-ab-c9-9e\WpadDecisionReason = "1"	2024-09-15_e8813239d34ba23cd225cc86d7a685be_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\22-04-d7-ab-c9-9e\WpadDecision = "0"	2024-09-15_e8813239d34ba23cd225cc86d7a685be_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-09-15_e8813239d34ba23cd225cc86d7a685be_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-09-15_e8813239d34ba23cd225cc86d7a685be_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-09-15_e8813239d34ba23cd225cc86d7a685be_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-09-15_e8813239d34ba23cd225cc86d7a685be_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f011d000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-15_e8813239d34ba23cd225cc86d7a685be_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{4D17E3BB-C0ED-4567-889F-8686FFC25CAC}\WpadDecisionTime = 405384859c07db01	2024-09-15_e8813239d34ba23cd225cc86d7a685be_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-15_e8813239d34ba23cd225cc86d7a685be_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{4D17E3BB-C0ED-4567-889F-8686FFC25CAC}	2024-09-15_e8813239d34ba23cd225cc86d7a685be_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{4D17E3BB-C0ED-4567-889F-8686FFC25CAC}\WpadDecision = "0"	2024-09-15_e8813239d34ba23cd225cc86d7a685be_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{4D17E3BB-C0ED-4567-889F-8686FFC25CAC}\22-04-d7-ab-c9-9e	2024-09-15_e8813239d34ba23cd225cc86d7a685be_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\22-04-d7-ab-c9-9e\WpadDecisionTime = 405384859c07db01	2024-09-15_e8813239d34ba23cd225cc86d7a685be_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-09-15_e8813239d34ba23cd225cc86d7a685be_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-15_e8813239d34ba23cd225cc86d7a685be_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2488
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:876

C:\Users\Admin\AppData\Local\Temp\2024-09-15_e8813239d34ba23cd225cc86d7a685be_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-09-15_e8813239d34ba23cd225cc86d7a685be_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2124

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
02da6cbf33799be44363b4fc8cf3f95c

SHA1
a28be1a702471915d8f8870a04329d4737f84cb8

SHA256
085e106869e9d447e8145bcb89924a6b78fcd3194277caae34a33a97e77785d0

SHA512
4a93348cceb45bdece61f8c9fadffc862bd0f159eb0d38a7485e9c77f3d65fede22b1b8c3b34f2ad1cf5609e4830c49f8a7ddc33d92b906ee7d3dccf52be9a3f

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Analysis

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