wannacry | 69f702e9b704bca24a4f8fbc15b337da09cf64e7706a55f1650ab87b83b52123

General

Target
2024-07-27_67a057b9d5dc93bb0503e76d3f2c05d5_wannacry.exe
Size 5.0MB
Sample240727-mxv7gswajn
SHA256 69f702e9b704bca24a4f8fbc15b337da09cf64e7706a55f1650ab87b83b52123
MD5 67a057b9d5dc93bb0503e76d3f2c05d5
SHA1 8c71e5ab6f8c3ecd397cfbea078131a580333b29
SHA512 31576c84749f6fc0a3f98f56eab710b070446cf49682ca03a55499c70d8bc8664c9320063c6162148e6b59341b704f3077623eb056f8861c0a977fed799c56f6
SSDEEP 98304:yDqPoBhz1aRxcSUDk36SAEdhvxWa9P51GJ7fOi0cFbyegt9UR6K6JcNHYPr:yDqPe1Cxcxk3ZAEUadcRuPr
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3229) 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
2880	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	2024-07-27_67a057b9d5dc93bb0503e76d3f2c05d5_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-07-27_67a057b9d5dc93bb0503e76d3f2c05d5_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	2024-07-27_67a057b9d5dc93bb0503e76d3f2c05d5_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-07-27_67a057b9d5dc93bb0503e76d3f2c05d5_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B4C311BB-3916-4493-A14A-97C9F7E1EC63}\WpadDecisionReason = "1"	2024-07-27_67a057b9d5dc93bb0503e76d3f2c05d5_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\8a-73-39-d2-d6-d3\WpadDecisionTime = f0c817f612e0da01	2024-07-27_67a057b9d5dc93bb0503e76d3f2c05d5_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\8a-73-39-d2-d6-d3\WpadDecision = "0"	2024-07-27_67a057b9d5dc93bb0503e76d3f2c05d5_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-07-27_67a057b9d5dc93bb0503e76d3f2c05d5_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-07-27_67a057b9d5dc93bb0503e76d3f2c05d5_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-07-27_67a057b9d5dc93bb0503e76d3f2c05d5_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0085000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-07-27_67a057b9d5dc93bb0503e76d3f2c05d5_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-07-27_67a057b9d5dc93bb0503e76d3f2c05d5_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B4C311BB-3916-4493-A14A-97C9F7E1EC63}\8a-73-39-d2-d6-d3	2024-07-27_67a057b9d5dc93bb0503e76d3f2c05d5_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-07-27_67a057b9d5dc93bb0503e76d3f2c05d5_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-07-27_67a057b9d5dc93bb0503e76d3f2c05d5_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-07-27_67a057b9d5dc93bb0503e76d3f2c05d5_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-07-27_67a057b9d5dc93bb0503e76d3f2c05d5_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\8a-73-39-d2-d6-d3	2024-07-27_67a057b9d5dc93bb0503e76d3f2c05d5_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\8a-73-39-d2-d6-d3\WpadDecisionReason = "1"	2024-07-27_67a057b9d5dc93bb0503e76d3f2c05d5_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-07-27_67a057b9d5dc93bb0503e76d3f2c05d5_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-07-27_67a057b9d5dc93bb0503e76d3f2c05d5_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B4C311BB-3916-4493-A14A-97C9F7E1EC63}\WpadDecisionTime = f0c817f612e0da01	2024-07-27_67a057b9d5dc93bb0503e76d3f2c05d5_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B4C311BB-3916-4493-A14A-97C9F7E1EC63}\WpadNetworkName = "Network 3"	2024-07-27_67a057b9d5dc93bb0503e76d3f2c05d5_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B4C311BB-3916-4493-A14A-97C9F7E1EC63}\WpadDecision = "0"	2024-07-27_67a057b9d5dc93bb0503e76d3f2c05d5_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-07-27_67a057b9d5dc93bb0503e76d3f2c05d5_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-07-27_67a057b9d5dc93bb0503e76d3f2c05d5_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-07-27_67a057b9d5dc93bb0503e76d3f2c05d5_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B4C311BB-3916-4493-A14A-97C9F7E1EC63}	2024-07-27_67a057b9d5dc93bb0503e76d3f2c05d5_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-07-27_67a057b9d5dc93bb0503e76d3f2c05d5_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-07-27_67a057b9d5dc93bb0503e76d3f2c05d5_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2788
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2880

C:\Users\Admin\AppData\Local\Temp\2024-07-27_67a057b9d5dc93bb0503e76d3f2c05d5_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-07-27_67a057b9d5dc93bb0503e76d3f2c05d5_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2120

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

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Downloads

tasksche.exe

Path C:\Windows\tasksche.exe
Size 3.4MB
SHA256 d5252dbb15aa926eb52f6aef34e5e6806d0b5bd62cfb3daec96ab1a65f491626
MD5 9befd17a3c21a9cd9aaff7e88e71ed7d
SHA1 b186511c614fbbc47f6e27526cfa70b999e6e5bf
SHA512 dab7e9a7cd55f7d19509f71991ab03f9d9a0aa64b1d55d9f731df35fc855512f1d9230212b217f21bd5e7451b472c6c020e9865d09acd487b1e50691f122db55
SSDEEP 98304:QqPoBhz1aRxcSUDk36SAEdhvxWa9P51GJ7fOi0cFbyegt9UR6K6JcNHYPrD:QqPe1Cxcxk3ZAEUadcRuPrD
MD5 SHA1 SHA512 SSDEEP

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