wannacry | d78f3c65fc376d675af5c47382a191efdbeacd577b343f7a458fd0e18f7c9831

General

Target

2024-09-24_6da447e2d8b91aae7fc416d0fe34c598_wannacry.exe
Size

3.6MB
MD5

6da447e2d8b91aae7fc416d0fe34c598
SHA1

bf95af17d8f25629613594f38a352d178a50eda5
SHA256

d78f3c65fc376d675af5c47382a191efdbeacd577b343f7a458fd0e18f7c9831
SHA512

4158fe5a35144acb3fc5dc9d9d1dc8410e0d9713b16692bf003b0ada02874d8e1353b99d62d3d9516f3ac97c6b102bf5a753f4352eeeb9699cbce5f45acb5129
SSDEEP

49152:2nAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAARdhnvxJM0H9LEau:yDqPoBhz1aRxcSUDk36SAEdhvxWa9y

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3305) 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
2828	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	2024-09-24_6da447e2d8b91aae7fc416d0fe34c598_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-09-24_6da447e2d8b91aae7fc416d0fe34c598_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	2024-09-24_6da447e2d8b91aae7fc416d0fe34c598_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-24_6da447e2d8b91aae7fc416d0fe34c598_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-09-24_6da447e2d8b91aae7fc416d0fe34c598_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f01a4000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-24_6da447e2d8b91aae7fc416d0fe34c598_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{33D616F7-3C99-47F9-92ED-62E5A43607E9}\WpadDecision = "0"	2024-09-24_6da447e2d8b91aae7fc416d0fe34c598_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\32-8f-98-30-d1-45	2024-09-24_6da447e2d8b91aae7fc416d0fe34c598_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-24_6da447e2d8b91aae7fc416d0fe34c598_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-09-24_6da447e2d8b91aae7fc416d0fe34c598_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-09-24_6da447e2d8b91aae7fc416d0fe34c598_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{33D616F7-3C99-47F9-92ED-62E5A43607E9}\WpadNetworkName = "Network 3"	2024-09-24_6da447e2d8b91aae7fc416d0fe34c598_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-09-24_6da447e2d8b91aae7fc416d0fe34c598_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-09-24_6da447e2d8b91aae7fc416d0fe34c598_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-24_6da447e2d8b91aae7fc416d0fe34c598_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-24_6da447e2d8b91aae7fc416d0fe34c598_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-09-24_6da447e2d8b91aae7fc416d0fe34c598_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-09-24_6da447e2d8b91aae7fc416d0fe34c598_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{33D616F7-3C99-47F9-92ED-62E5A43607E9}	2024-09-24_6da447e2d8b91aae7fc416d0fe34c598_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{33D616F7-3C99-47F9-92ED-62E5A43607E9}\WpadDecisionTime = 1010736ea90edb01	2024-09-24_6da447e2d8b91aae7fc416d0fe34c598_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-24_6da447e2d8b91aae7fc416d0fe34c598_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\32-8f-98-30-d1-45\WpadDecision = "0"	2024-09-24_6da447e2d8b91aae7fc416d0fe34c598_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\32-8f-98-30-d1-45\WpadDecisionReason = "1"	2024-09-24_6da447e2d8b91aae7fc416d0fe34c598_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-09-24_6da447e2d8b91aae7fc416d0fe34c598_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{33D616F7-3C99-47F9-92ED-62E5A43607E9}\WpadDecisionReason = "1"	2024-09-24_6da447e2d8b91aae7fc416d0fe34c598_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{33D616F7-3C99-47F9-92ED-62E5A43607E9}\32-8f-98-30-d1-45	2024-09-24_6da447e2d8b91aae7fc416d0fe34c598_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\32-8f-98-30-d1-45\WpadDecisionTime = 1010736ea90edb01	2024-09-24_6da447e2d8b91aae7fc416d0fe34c598_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-09-24_6da447e2d8b91aae7fc416d0fe34c598_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-09-24_6da447e2d8b91aae7fc416d0fe34c598_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-24_6da447e2d8b91aae7fc416d0fe34c598_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1908
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2828

C:\Users\Admin\AppData\Local\Temp\2024-09-24_6da447e2d8b91aae7fc416d0fe34c598_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-09-24_6da447e2d8b91aae7fc416d0fe34c598_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2744

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
bf4e83c05dbf8f486bc7599771f795c9

SHA1
2d434d5098689667d247195320784772e819dbb1

SHA256
10dcfd19fe45fb8517f35ee066642b8b71bca2074a1154725fe8d9609e9cdf82

SHA512
02f4816f78502790b3d8690a45ac8193d7e5a298f8246e320cc79e9418b3f9859985cddbd662b814b14266d9c0504495f9a7ead203404bc29e61e3bfef3ddce2

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Analysis

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