wannacry | 65c62c740fc5c937b1d3022e876de3509fff5cf02eaf35a8df53ee42a61f360c

General

Target

2024093011edbe92c0faf3523bb0f72ee3e09436wannacry.exe
Size

5.0MB
MD5

11edbe92c0faf3523bb0f72ee3e09436
SHA1

c228c00abbdd4de39711204aa1f4ca6e8e6cd598
SHA256

65c62c740fc5c937b1d3022e876de3509fff5cf02eaf35a8df53ee42a61f360c
SHA512

135fa4a17f1889628e2c677dd6ca542348e07100c1abce771ef8332f0e3b019ed5ce9ffac7b1733eebad093b26422341ce55c5120b868f473f21426079173547
SSDEEP

49152:2nAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAARdhnvxJM0H9PAMEc:yDqPoBhz1aRxcSUDk36SAEdhvxWa9P5

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3126) 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
1744	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	2024093011edbe92c0faf3523bb0f72ee3e09436wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024093011edbe92c0faf3523bb0f72ee3e09436wannacry.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	2024093011edbe92c0faf3523bb0f72ee3e09436wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024093011edbe92c0faf3523bb0f72ee3e09436wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\6e-df-15-72-c8-96\WpadDecisionReason = "1"	2024093011edbe92c0faf3523bb0f72ee3e09436wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\6e-df-15-72-c8-96\WpadDecisionTime = d00cdf026013db01	2024093011edbe92c0faf3523bb0f72ee3e09436wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024093011edbe92c0faf3523bb0f72ee3e09436wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024093011edbe92c0faf3523bb0f72ee3e09436wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{ABFF4CFC-4B71-48CC-87D8-8577C04FAFA6}\WpadDecisionTime = d00cdf026013db01	2024093011edbe92c0faf3523bb0f72ee3e09436wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{ABFF4CFC-4B71-48CC-87D8-8577C04FAFA6}\6e-df-15-72-c8-96	2024093011edbe92c0faf3523bb0f72ee3e09436wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024093011edbe92c0faf3523bb0f72ee3e09436wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024093011edbe92c0faf3523bb0f72ee3e09436wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024093011edbe92c0faf3523bb0f72ee3e09436wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{ABFF4CFC-4B71-48CC-87D8-8577C04FAFA6}\WpadDecision = "0"	2024093011edbe92c0faf3523bb0f72ee3e09436wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{ABFF4CFC-4B71-48CC-87D8-8577C04FAFA6}\WpadNetworkName = "Network 3"	2024093011edbe92c0faf3523bb0f72ee3e09436wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\6e-df-15-72-c8-96\WpadDecision = "0"	2024093011edbe92c0faf3523bb0f72ee3e09436wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024093011edbe92c0faf3523bb0f72ee3e09436wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024093011edbe92c0faf3523bb0f72ee3e09436wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024093011edbe92c0faf3523bb0f72ee3e09436wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024093011edbe92c0faf3523bb0f72ee3e09436wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024093011edbe92c0faf3523bb0f72ee3e09436wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0190000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024093011edbe92c0faf3523bb0f72ee3e09436wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{ABFF4CFC-4B71-48CC-87D8-8577C04FAFA6}	2024093011edbe92c0faf3523bb0f72ee3e09436wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{ABFF4CFC-4B71-48CC-87D8-8577C04FAFA6}\WpadDecisionReason = "1"	2024093011edbe92c0faf3523bb0f72ee3e09436wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024093011edbe92c0faf3523bb0f72ee3e09436wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024093011edbe92c0faf3523bb0f72ee3e09436wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024093011edbe92c0faf3523bb0f72ee3e09436wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\6e-df-15-72-c8-96	2024093011edbe92c0faf3523bb0f72ee3e09436wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024093011edbe92c0faf3523bb0f72ee3e09436wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024093011edbe92c0faf3523bb0f72ee3e09436wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2564
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:1744

C:\Users\Admin\AppData\Local\Temp\2024093011edbe92c0faf3523bb0f72ee3e09436wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024093011edbe92c0faf3523bb0f72ee3e09436wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:340

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
5782c5c239f03decfc8914a49d1a8e6e

SHA1
d9b7bc94d39da13d77a61faf0d51eb73e3bfafc2

SHA256
eeb6e79c4331d8595a5a030631d817d7ee83b8a21e091e210fadc96df9b53734

SHA512
89814c9ff80b751198a1ba1a835e08a46481a654ab2cd1fa354811a5536c7dc24db68ad1012d4f655119d345c5f92140c5d40f378232bb94e4bc3ac40ba99125

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