wannacry | f48810c73f45e5d3ab047694a631389e183d37d774103b297cdf70691a67744d

General

Target

2024-10-13_523362bbcf741c6e6fc0bb3dcf42200e_wannacry.exe
Size

3.6MB
MD5

523362bbcf741c6e6fc0bb3dcf42200e
SHA1

19f0dcc48580ea4cb70b929faf0ab3fa5ddb42f4
SHA256

f48810c73f45e5d3ab047694a631389e183d37d774103b297cdf70691a67744d
SHA512

20e3173c33a53b1e0c6e7dbbb3546056449a0194db8c18d7b254caf76768a3cc479407d6cae12f5770ee3548476f1f3293133ad3665fcd4a3acd76968814f79b
SSDEEP

49152:XnAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAARdh:XDqPoBhz1aRxcSUDk36SAEdh

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3342) 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
536	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	2024-10-13_523362bbcf741c6e6fc0bb3dcf42200e_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-10-13_523362bbcf741c6e6fc0bb3dcf42200e_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	2024-10-13_523362bbcf741c6e6fc0bb3dcf42200e_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-13_523362bbcf741c6e6fc0bb3dcf42200e_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-13_523362bbcf741c6e6fc0bb3dcf42200e_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-10-13_523362bbcf741c6e6fc0bb3dcf42200e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B260CDAC-1389-4A35-BAA5-74ED5E039B30}	2024-10-13_523362bbcf741c6e6fc0bb3dcf42200e_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B260CDAC-1389-4A35-BAA5-74ED5E039B30}\WpadDecisionTime = c060f807351ddb01	2024-10-13_523362bbcf741c6e6fc0bb3dcf42200e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\9e-4c-77-55-dd-a0	2024-10-13_523362bbcf741c6e6fc0bb3dcf42200e_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\9e-4c-77-55-dd-a0\WpadDecisionReason = "1"	2024-10-13_523362bbcf741c6e6fc0bb3dcf42200e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-10-13_523362bbcf741c6e6fc0bb3dcf42200e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-10-13_523362bbcf741c6e6fc0bb3dcf42200e_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-10-13_523362bbcf741c6e6fc0bb3dcf42200e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-10-13_523362bbcf741c6e6fc0bb3dcf42200e_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f009e000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-13_523362bbcf741c6e6fc0bb3dcf42200e_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-10-13_523362bbcf741c6e6fc0bb3dcf42200e_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-10-13_523362bbcf741c6e6fc0bb3dcf42200e_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B260CDAC-1389-4A35-BAA5-74ED5E039B30}\WpadDecisionReason = "1"	2024-10-13_523362bbcf741c6e6fc0bb3dcf42200e_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B260CDAC-1389-4A35-BAA5-74ED5E039B30}\WpadDecision = "0"	2024-10-13_523362bbcf741c6e6fc0bb3dcf42200e_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\9e-4c-77-55-dd-a0\WpadDecisionTime = c060f807351ddb01	2024-10-13_523362bbcf741c6e6fc0bb3dcf42200e_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B260CDAC-1389-4A35-BAA5-74ED5E039B30}\WpadNetworkName = "Network 3"	2024-10-13_523362bbcf741c6e6fc0bb3dcf42200e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B260CDAC-1389-4A35-BAA5-74ED5E039B30}\9e-4c-77-55-dd-a0	2024-10-13_523362bbcf741c6e6fc0bb3dcf42200e_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\9e-4c-77-55-dd-a0\WpadDecision = "0"	2024-10-13_523362bbcf741c6e6fc0bb3dcf42200e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-13_523362bbcf741c6e6fc0bb3dcf42200e_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-13_523362bbcf741c6e6fc0bb3dcf42200e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-13_523362bbcf741c6e6fc0bb3dcf42200e_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-10-13_523362bbcf741c6e6fc0bb3dcf42200e_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-10-13_523362bbcf741c6e6fc0bb3dcf42200e_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-10-13_523362bbcf741c6e6fc0bb3dcf42200e_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-13_523362bbcf741c6e6fc0bb3dcf42200e_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2172
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:536

C:\Users\Admin\AppData\Local\Temp\2024-10-13_523362bbcf741c6e6fc0bb3dcf42200e_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-10-13_523362bbcf741c6e6fc0bb3dcf42200e_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:1872

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

Loading Replay Monitor...

Downloads

C:\Windows\tasksche.exe

Filesize
3.4MB

MD5
52f6e1759e03ecec67f695eff0fcef18

SHA1
66fac9d83a148b917ac4c4a767af4a6eda1bf13f

SHA256
7546f77675d953469f9f928ed79de06161290f457a919bde21949578ac2d4e70

SHA512
5aa6be4dc540c5f2071c7c5456ec03f644b7bdcd0de3b603541c787055c40d3d21d6a5413dbb61714bbc40d06be6ebe61e4da835b09b29bbbe6805979e8d4124

Download Submit

Analysis

Sharing