wannacry | a201e56c992edf1fd30417991b95127f99888c6d27747899f65504e6893ddd1d

General

Target

2025-01-15_075ca33b35164058d848ac1cb410dc42_wannacry.exe
Size

5.0MB
MD5

075ca33b35164058d848ac1cb410dc42
SHA1

5e37df9dd0fe22c3623453476d4a13f0b96826e0
SHA256

a201e56c992edf1fd30417991b95127f99888c6d27747899f65504e6893ddd1d
SHA512

f22cb008f65544cb00947ce6f7995aeba073473da25b3584b0217bc32c18a44807a05246ab4fff58a5d86e01be49e01efbe27045decc681f051edbe1e609d545
SSDEEP

98304:XDaiEkmnfZ1aRxcSUDk36SAEdhX0Aj4Ouenmur2uuh:XDa6mnfZ1Cxcxk3ZAE70AjKem/uuh

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Wannacry family
wannacry
Contacts a large (3324) 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	2025-01-15_075ca33b35164058d848ac1cb410dc42_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2025-01-15_075ca33b35164058d848ac1cb410dc42_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	2025-01-15_075ca33b35164058d848ac1cb410dc42_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-15_075ca33b35164058d848ac1cb410dc42_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\{A5A695E9-3D7E-4707-8B9E-5C42B799B32A}\WpadNetworkName = "Network 3"	2025-01-15_075ca33b35164058d848ac1cb410dc42_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A5A695E9-3D7E-4707-8B9E-5C42B799B32A}\76-5f-4c-45-83-f4	2025-01-15_075ca33b35164058d848ac1cb410dc42_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\76-5f-4c-45-83-f4\WpadDecisionReason = "1"	2025-01-15_075ca33b35164058d848ac1cb410dc42_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2025-01-15_075ca33b35164058d848ac1cb410dc42_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2025-01-15_075ca33b35164058d848ac1cb410dc42_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A5A695E9-3D7E-4707-8B9E-5C42B799B32A}	2025-01-15_075ca33b35164058d848ac1cb410dc42_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A5A695E9-3D7E-4707-8B9E-5C42B799B32A}\WpadDecisionReason = "1"	2025-01-15_075ca33b35164058d848ac1cb410dc42_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A5A695E9-3D7E-4707-8B9E-5C42B799B32A}\WpadDecision = "0"	2025-01-15_075ca33b35164058d848ac1cb410dc42_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2025-01-15_075ca33b35164058d848ac1cb410dc42_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-15_075ca33b35164058d848ac1cb410dc42_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2025-01-15_075ca33b35164058d848ac1cb410dc42_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2025-01-15_075ca33b35164058d848ac1cb410dc42_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0077000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-15_075ca33b35164058d848ac1cb410dc42_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2025-01-15_075ca33b35164058d848ac1cb410dc42_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2025-01-15_075ca33b35164058d848ac1cb410dc42_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\76-5f-4c-45-83-f4	2025-01-15_075ca33b35164058d848ac1cb410dc42_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\76-5f-4c-45-83-f4\WpadDecisionTime = e01d46733b67db01	2025-01-15_075ca33b35164058d848ac1cb410dc42_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A5A695E9-3D7E-4707-8B9E-5C42B799B32A}\WpadDecisionTime = e01d46733b67db01	2025-01-15_075ca33b35164058d848ac1cb410dc42_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\76-5f-4c-45-83-f4\WpadDecision = "0"	2025-01-15_075ca33b35164058d848ac1cb410dc42_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2025-01-15_075ca33b35164058d848ac1cb410dc42_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-15_075ca33b35164058d848ac1cb410dc42_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2025-01-15_075ca33b35164058d848ac1cb410dc42_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2025-01-15_075ca33b35164058d848ac1cb410dc42_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2025-01-15_075ca33b35164058d848ac1cb410dc42_wannacry.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3036 wrote to memory of 2712	3036	2025-01-15_075ca33b35164058d848ac1cb410dc42_wannacry.exe	31
PID 3036 wrote to memory of 2712	3036	2025-01-15_075ca33b35164058d848ac1cb410dc42_wannacry.exe	31
PID 3036 wrote to memory of 2712	3036	2025-01-15_075ca33b35164058d848ac1cb410dc42_wannacry.exe	31
PID 3036 wrote to memory of 2712	3036	2025-01-15_075ca33b35164058d848ac1cb410dc42_wannacry.exe	31

C:\Users\Admin\AppData\Local\Temp\2025-01-15_075ca33b35164058d848ac1cb410dc42_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-15_075ca33b35164058d848ac1cb410dc42_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3036
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2712

C:\Users\Admin\AppData\Local\Temp\2025-01-15_075ca33b35164058d848ac1cb410dc42_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2025-01-15_075ca33b35164058d848ac1cb410dc42_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:3056

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
4a392478a337b59561bbabcb609db282

SHA1
e1983828982ff6597d151169582c06f5f56ba453

SHA256
f5bea6ca87381376fea669c72f49c7b0bf8ef5fdf307cd5057a23dfa40917125

SHA512
7d9885e893abb73fe65cfa38c97303b4dd32a98f23972c5e7c12074fa2dd16d7bc84e4bcad7dffb8ec219cc3bd7a23ab272bbce5f4a3c3c6ea326fddab924fdd

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