wannacry | 70ee02bdf8342425b6ef4b026831c9f4d80fe1c872a1671e853b258e18f07a38

General

Target

2024-09-28_3471a30e3b718c96bd7c3ff5309e5b4a_wannacry.exe
Size

5.0MB
MD5

3471a30e3b718c96bd7c3ff5309e5b4a
SHA1

788278e93a6035052f7403c0c7323fb631d847a7
SHA256

70ee02bdf8342425b6ef4b026831c9f4d80fe1c872a1671e853b258e18f07a38
SHA512

9ea94aa4d44630a4e91896115a8006bf9dd6129c94a8a6b142c826f82f2c59d848f0aa870722e3b973faf57045935de5441f84a630787c4f104d9c4fea4664b2
SSDEEP

98304:yDqPoBhz1aRxcSUDkOxWa9P593R8yAVp2H:yDqPe1CxcxkBadzR8yc4H

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3168) 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
2336	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	2024-09-28_3471a30e3b718c96bd7c3ff5309e5b4a_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-09-28_3471a30e3b718c96bd7c3ff5309e5b4a_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	2024-09-28_3471a30e3b718c96bd7c3ff5309e5b4a_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-28_3471a30e3b718c96bd7c3ff5309e5b4a_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\{584496BF-2BDD-4242-A91B-39026B259F8A}\WpadNetworkName = "Network 3"	2024-09-28_3471a30e3b718c96bd7c3ff5309e5b4a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-09-28_3471a30e3b718c96bd7c3ff5309e5b4a_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-28_3471a30e3b718c96bd7c3ff5309e5b4a_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-09-28_3471a30e3b718c96bd7c3ff5309e5b4a_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-28_3471a30e3b718c96bd7c3ff5309e5b4a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-09-28_3471a30e3b718c96bd7c3ff5309e5b4a_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{584496BF-2BDD-4242-A91B-39026B259F8A}\WpadDecision = "0"	2024-09-28_3471a30e3b718c96bd7c3ff5309e5b4a_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\f2-54-0e-90-a8-73\WpadDecisionReason = "1"	2024-09-28_3471a30e3b718c96bd7c3ff5309e5b4a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-28_3471a30e3b718c96bd7c3ff5309e5b4a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-28_3471a30e3b718c96bd7c3ff5309e5b4a_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-09-28_3471a30e3b718c96bd7c3ff5309e5b4a_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-09-28_3471a30e3b718c96bd7c3ff5309e5b4a_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{584496BF-2BDD-4242-A91B-39026B259F8A}\WpadDecisionReason = "1"	2024-09-28_3471a30e3b718c96bd7c3ff5309e5b4a_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{584496BF-2BDD-4242-A91B-39026B259F8A}\WpadDecisionTime = 7075d16f8b11db01	2024-09-28_3471a30e3b718c96bd7c3ff5309e5b4a_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00bb000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-28_3471a30e3b718c96bd7c3ff5309e5b4a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{584496BF-2BDD-4242-A91B-39026B259F8A}	2024-09-28_3471a30e3b718c96bd7c3ff5309e5b4a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\f2-54-0e-90-a8-73	2024-09-28_3471a30e3b718c96bd7c3ff5309e5b4a_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\f2-54-0e-90-a8-73\WpadDecision = "0"	2024-09-28_3471a30e3b718c96bd7c3ff5309e5b4a_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-09-28_3471a30e3b718c96bd7c3ff5309e5b4a_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-09-28_3471a30e3b718c96bd7c3ff5309e5b4a_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-09-28_3471a30e3b718c96bd7c3ff5309e5b4a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-09-28_3471a30e3b718c96bd7c3ff5309e5b4a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{584496BF-2BDD-4242-A91B-39026B259F8A}\f2-54-0e-90-a8-73	2024-09-28_3471a30e3b718c96bd7c3ff5309e5b4a_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\f2-54-0e-90-a8-73\WpadDecisionTime = 7075d16f8b11db01	2024-09-28_3471a30e3b718c96bd7c3ff5309e5b4a_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-09-28_3471a30e3b718c96bd7c3ff5309e5b4a_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-28_3471a30e3b718c96bd7c3ff5309e5b4a_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2072
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2336

C:\Users\Admin\AppData\Local\Temp\2024-09-28_3471a30e3b718c96bd7c3ff5309e5b4a_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-09-28_3471a30e3b718c96bd7c3ff5309e5b4a_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2164

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
d40045aa596de512669b819085798efb

SHA1
fa99cc62b22f7895f6e1d72dad4a3f0574a46e20

SHA256
1f373e2833101d8c1433e78368ec430bd0fa7c688cdf7f219be767cdbb9325de

SHA512
795e675ba129ad57111f23e33ce7cd08e30f8116861ce9ed32df8f187cbe45ff674f456291114404724f494ec94b9e1018ba2e0f8d05f18fed30394e5141bd33

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