wannacry | bbb687754b36bc9f44715f14919dff9a7f90f3aed89015f26807458ebec2ee95

General

Target

2024-09-29_d37ddabc0e5da8f5829d5df023283446_wannacry.exe
Size

5.0MB
MD5

d37ddabc0e5da8f5829d5df023283446
SHA1

b8bcc1d6ce4ab9379be5476a86168f7028bdb4c6
SHA256

bbb687754b36bc9f44715f14919dff9a7f90f3aed89015f26807458ebec2ee95
SHA512

a3851b37e04dd547d67fd6f8d0f2c76445d7c1c9fbf997688a450b14de7ee3f9016d12eee7acf5fc136834feb4f6bf5e1cd399f14161571695cf3195db72e799
SSDEEP

98304:XDqPoBhi1aRxcSUDk36SAEdhvxWa9P593R8yAVp2H:XDqPf1Cxcxk3ZAEUadzR8yc4H

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3232) 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
2928	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	2024-09-29_d37ddabc0e5da8f5829d5df023283446_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-09-29_d37ddabc0e5da8f5829d5df023283446_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	2024-09-29_d37ddabc0e5da8f5829d5df023283446_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-29_d37ddabc0e5da8f5829d5df023283446_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-09-29_d37ddabc0e5da8f5829d5df023283446_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00a9000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-29_d37ddabc0e5da8f5829d5df023283446_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8F194DBF-51B2-4875-84BA-2EBA75F7862B}	2024-09-29_d37ddabc0e5da8f5829d5df023283446_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8F194DBF-51B2-4875-84BA-2EBA75F7862B}\WpadDecisionReason = "1"	2024-09-29_d37ddabc0e5da8f5829d5df023283446_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8F194DBF-51B2-4875-84BA-2EBA75F7862B}\WpadDecisionTime = 20876a6f5812db01	2024-09-29_d37ddabc0e5da8f5829d5df023283446_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8F194DBF-51B2-4875-84BA-2EBA75F7862B}\WpadNetworkName = "Network 3"	2024-09-29_d37ddabc0e5da8f5829d5df023283446_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-09-29_d37ddabc0e5da8f5829d5df023283446_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-09-29_d37ddabc0e5da8f5829d5df023283446_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-09-29_d37ddabc0e5da8f5829d5df023283446_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-09-29_d37ddabc0e5da8f5829d5df023283446_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-09-29_d37ddabc0e5da8f5829d5df023283446_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-09-29_d37ddabc0e5da8f5829d5df023283446_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\76-c4-75-2d-b8-0a	2024-09-29_d37ddabc0e5da8f5829d5df023283446_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8F194DBF-51B2-4875-84BA-2EBA75F7862B}\76-c4-75-2d-b8-0a	2024-09-29_d37ddabc0e5da8f5829d5df023283446_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-09-29_d37ddabc0e5da8f5829d5df023283446_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-29_d37ddabc0e5da8f5829d5df023283446_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\76-c4-75-2d-b8-0a\WpadDecision = "0"	2024-09-29_d37ddabc0e5da8f5829d5df023283446_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\76-c4-75-2d-b8-0a\WpadDecisionReason = "1"	2024-09-29_d37ddabc0e5da8f5829d5df023283446_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\76-c4-75-2d-b8-0a\WpadDecisionTime = 20876a6f5812db01	2024-09-29_d37ddabc0e5da8f5829d5df023283446_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-29_d37ddabc0e5da8f5829d5df023283446_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-09-29_d37ddabc0e5da8f5829d5df023283446_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8F194DBF-51B2-4875-84BA-2EBA75F7862B}\WpadDecision = "0"	2024-09-29_d37ddabc0e5da8f5829d5df023283446_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-29_d37ddabc0e5da8f5829d5df023283446_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-29_d37ddabc0e5da8f5829d5df023283446_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-09-29_d37ddabc0e5da8f5829d5df023283446_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-29_d37ddabc0e5da8f5829d5df023283446_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2224
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2928

C:\Users\Admin\AppData\Local\Temp\2024-09-29_d37ddabc0e5da8f5829d5df023283446_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-09-29_d37ddabc0e5da8f5829d5df023283446_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2240

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
2e4f8ff13941baedbabc987368a1e720

SHA1
29089cba335601e4c4efb1f13c7b417f111efef1

SHA256
1df40962ca22e71f59c7041a72e2e12e203f6db9fb5eb0ea7fb96011be269e25

SHA512
2a12e4b001f475f9d56e399768f5949c8e4b45578160b9cd2287a338281a9b6b60c693deaf6bdb0fa65b9ef90884256b9f7ba583c9e9334686d4537f93f8e2cc

Download Submit

Analysis

Sharing