wannacry | 8176a41951eb1a1a73e97a97840f26ba08c026d3814afff9bf550313de240d42

General

Target

2025-02-06_72d92287d385c4fdb86894713d70cb43_wannacry.exe
Size

5.0MB
MD5

72d92287d385c4fdb86894713d70cb43
SHA1

91cc65bd4c65232ab58a70ed2acb5d021e9e8392
SHA256

8176a41951eb1a1a73e97a97840f26ba08c026d3814afff9bf550313de240d42
SHA512

a2e2b684a25c6a567d255d0226b5bc231f600f1fc8c3505ae0e41cdaaf35be4fd3ff5752d7bf23da55249f8a93a70fc897ab0c29c87b3b7ad9930778454e6a13
SSDEEP

6144:GE9l9ynqIYVTH5DgSgNajldktM0XXrCIagQhMV9qbBLIwYQuy8DLq:GebLgmluCtgQhMbaIMu7L

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 (3156) 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
2608	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 5 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	2025-02-06_72d92287d385c4fdb86894713d70cb43_wannacry.exe
File created	C:\Windows\SysWOW64\config\systemprofile\AppData\Roaming\Microsoft\Windows\Cookies\H1KUP4OA.txt	2025-02-06_72d92287d385c4fdb86894713d70cb43_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Roaming\Microsoft\Windows\Cookies\H1KUP4OA.txt	2025-02-06_72d92287d385c4fdb86894713d70cb43_wannacry.exe
File created	C:\Windows\SysWOW64\config\systemprofile\AppData\Roaming\Microsoft\Windows\Cookies\JI0Q4WGG.txt	2025-02-06_72d92287d385c4fdb86894713d70cb43_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Roaming\Microsoft\Windows\Cookies\JI0Q4WGG.txt	2025-02-06_72d92287d385c4fdb86894713d70cb43_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2025-02-06_72d92287d385c4fdb86894713d70cb43_wannacry.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2848	2608	WerFault.exe	32

System Location Discovery: System Language Discovery 1 TTPs 3 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	2025-02-06_72d92287d385c4fdb86894713d70cb43_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-06_72d92287d385c4fdb86894713d70cb43_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tasksche.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2025-02-06_72d92287d385c4fdb86894713d70cb43_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-02-06_72d92287d385c4fdb86894713d70cb43_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2025-02-06_72d92287d385c4fdb86894713d70cb43_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2025-02-06_72d92287d385c4fdb86894713d70cb43_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{148341C8-0451-4003-8958-DD5733BC0A86}	2025-02-06_72d92287d385c4fdb86894713d70cb43_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{148341C8-0451-4003-8958-DD5733BC0A86}\WpadDecisionTime = d04c811e9878db01	2025-02-06_72d92287d385c4fdb86894713d70cb43_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-02-06_72d92287d385c4fdb86894713d70cb43_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2025-02-06_72d92287d385c4fdb86894713d70cb43_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2025-02-06_72d92287d385c4fdb86894713d70cb43_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{148341C8-0451-4003-8958-DD5733BC0A86}\WpadDecision = "0"	2025-02-06_72d92287d385c4fdb86894713d70cb43_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2025-02-06_72d92287d385c4fdb86894713d70cb43_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2025-02-06_72d92287d385c4fdb86894713d70cb43_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00ea000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-02-06_72d92287d385c4fdb86894713d70cb43_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{148341C8-0451-4003-8958-DD5733BC0A86}\WpadDecisionReason = "1"	2025-02-06_72d92287d385c4fdb86894713d70cb43_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{148341C8-0451-4003-8958-DD5733BC0A86}\WpadNetworkName = "Network 3"	2025-02-06_72d92287d385c4fdb86894713d70cb43_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\32-83-07-14-26-7d\WpadDecisionReason = "1"	2025-02-06_72d92287d385c4fdb86894713d70cb43_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2025-02-06_72d92287d385c4fdb86894713d70cb43_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2025-02-06_72d92287d385c4fdb86894713d70cb43_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2025-02-06_72d92287d385c4fdb86894713d70cb43_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\32-83-07-14-26-7d	2025-02-06_72d92287d385c4fdb86894713d70cb43_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{148341C8-0451-4003-8958-DD5733BC0A86}\32-83-07-14-26-7d	2025-02-06_72d92287d385c4fdb86894713d70cb43_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\32-83-07-14-26-7d\WpadDecisionTime = d04c811e9878db01	2025-02-06_72d92287d385c4fdb86894713d70cb43_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\32-83-07-14-26-7d\WpadDecision = "0"	2025-02-06_72d92287d385c4fdb86894713d70cb43_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2025-02-06_72d92287d385c4fdb86894713d70cb43_wannacry.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2388 wrote to memory of 2608	2388	2025-02-06_72d92287d385c4fdb86894713d70cb43_wannacry.exe	32
PID 2388 wrote to memory of 2608	2388	2025-02-06_72d92287d385c4fdb86894713d70cb43_wannacry.exe	32
PID 2388 wrote to memory of 2608	2388	2025-02-06_72d92287d385c4fdb86894713d70cb43_wannacry.exe	32
PID 2388 wrote to memory of 2608	2388	2025-02-06_72d92287d385c4fdb86894713d70cb43_wannacry.exe	32
PID 2608 wrote to memory of 2848	2608	tasksche.exe	33
PID 2608 wrote to memory of 2848	2608	tasksche.exe	33
PID 2608 wrote to memory of 2848	2608	tasksche.exe	33
PID 2608 wrote to memory of 2848	2608	tasksche.exe	33

C:\Users\Admin\AppData\Local\Temp\2025-02-06_72d92287d385c4fdb86894713d70cb43_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-06_72d92287d385c4fdb86894713d70cb43_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2388
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2608
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2608 -s 36
    3⤵
    - Program crash
    PID:2848

C:\Users\Admin\AppData\Local\Temp\2025-02-06_72d92287d385c4fdb86894713d70cb43_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2025-02-06_72d92287d385c4fdb86894713d70cb43_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2712

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

C:\Windows\tasksche.exe

Filesize
2.0MB

MD5
0a58685f92214bc3980eb4a9b932af85

SHA1
9e44e912fef06ce84989626496bd1766dbd25d84

SHA256
f6d60a21b5a3fb4b7ef9a6fecab3aaf6d058032fbf3ec479cc0ad59b24c09af4

SHA512
091278fdfc9cccdaa2fe46e9ac942aaf389487d4f7fbb876532b1f926e407e189dce5b70a8602596d11f8bca8da592d69383ad14cd58dbe77a79fa761a190ca6

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