wannacry | b09ff8ebbf1205d9efae84e56f5b76d2907f6ecd23c86e53da4a5850437414f8

General

Target

2025-01-11_a2e7604fa2cc092fe143be835606c572_wannacry.exe
Size

3.6MB
MD5

a2e7604fa2cc092fe143be835606c572
SHA1

664131bcef961caec1e3ee959644ffdd362ee45e
SHA256

b09ff8ebbf1205d9efae84e56f5b76d2907f6ecd23c86e53da4a5850437414f8
SHA512

5cb428923a1f6e4319fcd91e6c20f7ca6ffcb5379ceaea76fd2f524a6925c1bf927c823e4200e5cc3d901c2c53335ef47be08ae05f524e028d0b462028d24bc2
SSDEEP

49152:2nAQqMSPbcBVQej/1INRx+TSqTdX1HkQp:yDqPoBhz1aRxcSUDku

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 (3199) 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
2904	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	2025-01-11_a2e7604fa2cc092fe143be835606c572_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2025-01-11_a2e7604fa2cc092fe143be835606c572_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	2025-01-11_a2e7604fa2cc092fe143be835606c572_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-11_a2e7604fa2cc092fe143be835606c572_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\{B24CD76D-B3F5-46EF-85D5-31A9CEA52DFA}\WpadDecision = "0"	2025-01-11_a2e7604fa2cc092fe143be835606c572_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B24CD76D-B3F5-46EF-85D5-31A9CEA52DFA}\b2-dc-a0-a2-d8-69	2025-01-11_a2e7604fa2cc092fe143be835606c572_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2025-01-11_a2e7604fa2cc092fe143be835606c572_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2025-01-11_a2e7604fa2cc092fe143be835606c572_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-11_a2e7604fa2cc092fe143be835606c572_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2025-01-11_a2e7604fa2cc092fe143be835606c572_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f017b000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-11_a2e7604fa2cc092fe143be835606c572_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B24CD76D-B3F5-46EF-85D5-31A9CEA52DFA}	2025-01-11_a2e7604fa2cc092fe143be835606c572_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\b2-dc-a0-a2-d8-69\WpadDecisionReason = "1"	2025-01-11_a2e7604fa2cc092fe143be835606c572_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2025-01-11_a2e7604fa2cc092fe143be835606c572_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2025-01-11_a2e7604fa2cc092fe143be835606c572_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2025-01-11_a2e7604fa2cc092fe143be835606c572_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B24CD76D-B3F5-46EF-85D5-31A9CEA52DFA}\WpadDecisionTime = 00a1fe231e64db01	2025-01-11_a2e7604fa2cc092fe143be835606c572_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\b2-dc-a0-a2-d8-69\WpadDecision = "0"	2025-01-11_a2e7604fa2cc092fe143be835606c572_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-11_a2e7604fa2cc092fe143be835606c572_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2025-01-11_a2e7604fa2cc092fe143be835606c572_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B24CD76D-B3F5-46EF-85D5-31A9CEA52DFA}\WpadNetworkName = "Network 3"	2025-01-11_a2e7604fa2cc092fe143be835606c572_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\b2-dc-a0-a2-d8-69\WpadDecisionTime = 00a1fe231e64db01	2025-01-11_a2e7604fa2cc092fe143be835606c572_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2025-01-11_a2e7604fa2cc092fe143be835606c572_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2025-01-11_a2e7604fa2cc092fe143be835606c572_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2025-01-11_a2e7604fa2cc092fe143be835606c572_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2025-01-11_a2e7604fa2cc092fe143be835606c572_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B24CD76D-B3F5-46EF-85D5-31A9CEA52DFA}\WpadDecisionReason = "1"	2025-01-11_a2e7604fa2cc092fe143be835606c572_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\b2-dc-a0-a2-d8-69	2025-01-11_a2e7604fa2cc092fe143be835606c572_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2025-01-11_a2e7604fa2cc092fe143be835606c572_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-11_a2e7604fa2cc092fe143be835606c572_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2708
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2904

C:\Users\Admin\AppData\Local\Temp\2025-01-11_a2e7604fa2cc092fe143be835606c572_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2025-01-11_a2e7604fa2cc092fe143be835606c572_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2664

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
f76e6ce515db935ed35dc94cc75baa5d

SHA1
95b25f165418a24f16cb5ddc30c4bb70bc626e53

SHA256
284c6775c6ca6179dcdb96ec469ac36bac2084a5d654b29af67c301cfbe043ab

SHA512
93b1f29e9419668047e80037b5aa667d7d19904f43801321e9ab786c284a0192d67609491896538d8a9082db3adbb378cc4902fad001d423c22c006167e4163a

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