wannacry | 3f48a8d80cc55a1fbe9a210b60b07f3677b736b8a02d5408697d9df54a276776

General

Target

LisectAVT_2403002A_26.exe
Size

3.6MB
MD5

eb4f4c455604f0f1ce111fbefecd9e21
SHA1

0a31ea9a024ecf6536283e1eda1f48458b10cbed
SHA256

3f48a8d80cc55a1fbe9a210b60b07f3677b736b8a02d5408697d9df54a276776
SHA512

e73c0fd6bf49a94ab6b1f02fe52fb86fee8040a1c4ff61d555ea5cbde6769b84c8b3ae911f3897f90f9d0a68124410938b65c604e3176bad208d9eb43b2a3acb
SSDEEP

98304:y763opJtK5ZcSUDcn6SAcdZvxWa9P593:y763atKZcxcnZAcMadz

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3224) 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
2728	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	LisectAVT_2403002A_26.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	LisectAVT_2403002A_26.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	LisectAVT_2403002A_26.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	LisectAVT_2403002A_26.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E61309FE-7FCF-4445-9583-4BEB841BE9A2}\WpadNetworkName = "Network 3"	LisectAVT_2403002A_26.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\aa-76-94-55-71-2d\WpadDecisionReason = "1"	LisectAVT_2403002A_26.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	LisectAVT_2403002A_26.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	LisectAVT_2403002A_26.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	LisectAVT_2403002A_26.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	LisectAVT_2403002A_26.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E61309FE-7FCF-4445-9583-4BEB841BE9A2}\WpadDecisionTime = a0608ec725deda01	LisectAVT_2403002A_26.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\aa-76-94-55-71-2d\WpadDecision = "0"	LisectAVT_2403002A_26.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	LisectAVT_2403002A_26.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	LisectAVT_2403002A_26.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	LisectAVT_2403002A_26.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0133000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	LisectAVT_2403002A_26.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\aa-76-94-55-71-2d\WpadDecisionTime = a0608ec725deda01	LisectAVT_2403002A_26.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E61309FE-7FCF-4445-9583-4BEB841BE9A2}\aa-76-94-55-71-2d	LisectAVT_2403002A_26.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	LisectAVT_2403002A_26.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	LisectAVT_2403002A_26.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	LisectAVT_2403002A_26.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	LisectAVT_2403002A_26.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E61309FE-7FCF-4445-9583-4BEB841BE9A2}	LisectAVT_2403002A_26.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	LisectAVT_2403002A_26.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	LisectAVT_2403002A_26.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E61309FE-7FCF-4445-9583-4BEB841BE9A2}\WpadDecisionReason = "1"	LisectAVT_2403002A_26.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E61309FE-7FCF-4445-9583-4BEB841BE9A2}\WpadDecision = "0"	LisectAVT_2403002A_26.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\aa-76-94-55-71-2d	LisectAVT_2403002A_26.exe

C:\Users\Admin\AppData\Local\Temp\LisectAVT_2403002A_26.exe
"C:\Users\Admin\AppData\Local\Temp\LisectAVT_2403002A_26.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1196
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2728

C:\Users\Admin\AppData\Local\Temp\LisectAVT_2403002A_26.exe
C:\Users\Admin\AppData\Local\Temp\LisectAVT_2403002A_26.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2844

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
3df2667ef94776eeb272a1404801f118

SHA1
0741698e6d3460284494b239bf6bac7d9e0d3a99

SHA256
891fa5f91382fd21322df4b0137f6c865d96fe376c88f6849592cd4942254520

SHA512
705921a25f6245e553358517a98996def0dcc878037f73bd332ee6ddd56cb208948b45a00ce42fbd94972e99a8959f44458dcf3669ac798625bfaec8fdaf6dc6

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