wannacry | bdfa326dfceb90acd4c4de99b0d18767e831643cea41567c28762911b142c85b

General

Target

2024-09-22_5988c15e68e599593561805b5ff1fa11_wannacry.exe
Size

3.6MB
MD5

5988c15e68e599593561805b5ff1fa11
SHA1

fcd89707e8c11881d8d614aea60a64bee09fbaf0
SHA256

bdfa326dfceb90acd4c4de99b0d18767e831643cea41567c28762911b142c85b
SHA512

89077e25ead3089abbe8224abd19d9d6868a16fe5279a92627163b6c70d05db36a5276074ffb2c7a7646cb5070922fb4c18a5e5433996bc0824333f6f21f7f75
SSDEEP

98304:yDqPoBhz1aRxcSUDk36SAEdhvxWa9P5IR8yAVp2HI:yDqPe1Cxcxk3ZAEUadyR8yc4HI

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3334) 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
2472	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	2024-09-22_5988c15e68e599593561805b5ff1fa11_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-09-22_5988c15e68e599593561805b5ff1fa11_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	2024-09-22_5988c15e68e599593561805b5ff1fa11_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-22_5988c15e68e599593561805b5ff1fa11_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4a-ca-24-3b-ab-ef\WpadDecisionTime = e083285e170ddb01	2024-09-22_5988c15e68e599593561805b5ff1fa11_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4a-ca-24-3b-ab-ef\WpadDecision = "0"	2024-09-22_5988c15e68e599593561805b5ff1fa11_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{92F7C9E8-F056-4FBA-A791-4147CB7B9EE2}\WpadDecisionReason = "1"	2024-09-22_5988c15e68e599593561805b5ff1fa11_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{92F7C9E8-F056-4FBA-A791-4147CB7B9EE2}\WpadDecision = "0"	2024-09-22_5988c15e68e599593561805b5ff1fa11_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-22_5988c15e68e599593561805b5ff1fa11_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-09-22_5988c15e68e599593561805b5ff1fa11_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-09-22_5988c15e68e599593561805b5ff1fa11_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-09-22_5988c15e68e599593561805b5ff1fa11_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-09-22_5988c15e68e599593561805b5ff1fa11_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00ae000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-22_5988c15e68e599593561805b5ff1fa11_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{92F7C9E8-F056-4FBA-A791-4147CB7B9EE2}\WpadNetworkName = "Network 3"	2024-09-22_5988c15e68e599593561805b5ff1fa11_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4a-ca-24-3b-ab-ef	2024-09-22_5988c15e68e599593561805b5ff1fa11_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{92F7C9E8-F056-4FBA-A791-4147CB7B9EE2}\4a-ca-24-3b-ab-ef	2024-09-22_5988c15e68e599593561805b5ff1fa11_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-22_5988c15e68e599593561805b5ff1fa11_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-09-22_5988c15e68e599593561805b5ff1fa11_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-22_5988c15e68e599593561805b5ff1fa11_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-09-22_5988c15e68e599593561805b5ff1fa11_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-09-22_5988c15e68e599593561805b5ff1fa11_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-09-22_5988c15e68e599593561805b5ff1fa11_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-22_5988c15e68e599593561805b5ff1fa11_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-09-22_5988c15e68e599593561805b5ff1fa11_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{92F7C9E8-F056-4FBA-A791-4147CB7B9EE2}	2024-09-22_5988c15e68e599593561805b5ff1fa11_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{92F7C9E8-F056-4FBA-A791-4147CB7B9EE2}\WpadDecisionTime = e083285e170ddb01	2024-09-22_5988c15e68e599593561805b5ff1fa11_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4a-ca-24-3b-ab-ef\WpadDecisionReason = "1"	2024-09-22_5988c15e68e599593561805b5ff1fa11_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-09-22_5988c15e68e599593561805b5ff1fa11_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-22_5988c15e68e599593561805b5ff1fa11_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2268
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2472

C:\Users\Admin\AppData\Local\Temp\2024-09-22_5988c15e68e599593561805b5ff1fa11_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-09-22_5988c15e68e599593561805b5ff1fa11_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2092

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
6e3f55818db004a5ef6f2ee9f44c84e0

SHA1
76ff043561bd8ca5bd69e14acdabb198093d1b55

SHA256
eea5e42fee349a8133f5231253c52de8fd9a4b948ff2d5cff78b51e571595022

SHA512
9a20bcdc076cc8305807aabdaf37d60580c5f57adcee39402fce1b452f6cc051a81b976fa7d8fa73992d9e1aa3fd1135413d268397a7266dc6d54882fcd93bc9

Download Submit

Analysis

Sharing