wannacry | 0fcb7e00b2841edc8ecac3cf6a3bffee6487197247190125dcda2ad0e8941df5

General

Target

2024-09-27_2febaaba479fad71532694f96f8813ed_wannacry.exe
Size

3.6MB
MD5

2febaaba479fad71532694f96f8813ed
SHA1

cd24e13a546d5f0cfb6952952edfac00c508d520
SHA256

0fcb7e00b2841edc8ecac3cf6a3bffee6487197247190125dcda2ad0e8941df5
SHA512

18e717269d0af7859165d64dd841c4e3c0a8c9935dd23f5830a4d6810b7fe5651eec31cebdc20e48df33e7182d334ec6be395a9b5d469d0340cea34a35b05e7e
SSDEEP

98304:yDqPoB7RxcSUDk36SAixWa9P593R8yAVp2HI:yDqP+xcxk3ZAVadzR8yc4HI

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3268) 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
2664	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	2024-09-27_2febaaba479fad71532694f96f8813ed_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-09-27_2febaaba479fad71532694f96f8813ed_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	2024-09-27_2febaaba479fad71532694f96f8813ed_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-27_2febaaba479fad71532694f96f8813ed_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\12-eb-9f-ad-53-4e\WpadDecision = "0"	2024-09-27_2febaaba479fad71532694f96f8813ed_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-09-27_2febaaba479fad71532694f96f8813ed_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-09-27_2febaaba479fad71532694f96f8813ed_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-09-27_2febaaba479fad71532694f96f8813ed_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-27_2febaaba479fad71532694f96f8813ed_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00f3000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-27_2febaaba479fad71532694f96f8813ed_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{9C763CDB-E664-46F6-9E2E-AB178A1A44A5}\WpadDecisionReason = "1"	2024-09-27_2febaaba479fad71532694f96f8813ed_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\12-eb-9f-ad-53-4e	2024-09-27_2febaaba479fad71532694f96f8813ed_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\12-eb-9f-ad-53-4e\WpadDecisionReason = "1"	2024-09-27_2febaaba479fad71532694f96f8813ed_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-27_2febaaba479fad71532694f96f8813ed_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-27_2febaaba479fad71532694f96f8813ed_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\12-eb-9f-ad-53-4e\WpadDecisionTime = 00d49c20fe10db01	2024-09-27_2febaaba479fad71532694f96f8813ed_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-09-27_2febaaba479fad71532694f96f8813ed_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-09-27_2febaaba479fad71532694f96f8813ed_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-09-27_2febaaba479fad71532694f96f8813ed_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{9C763CDB-E664-46F6-9E2E-AB178A1A44A5}\WpadDecisionTime = 00d49c20fe10db01	2024-09-27_2febaaba479fad71532694f96f8813ed_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{9C763CDB-E664-46F6-9E2E-AB178A1A44A5}\WpadNetworkName = "Network 3"	2024-09-27_2febaaba479fad71532694f96f8813ed_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-09-27_2febaaba479fad71532694f96f8813ed_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-27_2febaaba479fad71532694f96f8813ed_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{9C763CDB-E664-46F6-9E2E-AB178A1A44A5}	2024-09-27_2febaaba479fad71532694f96f8813ed_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{9C763CDB-E664-46F6-9E2E-AB178A1A44A5}\WpadDecision = "0"	2024-09-27_2febaaba479fad71532694f96f8813ed_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{9C763CDB-E664-46F6-9E2E-AB178A1A44A5}\12-eb-9f-ad-53-4e	2024-09-27_2febaaba479fad71532694f96f8813ed_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-09-27_2febaaba479fad71532694f96f8813ed_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-09-27_2febaaba479fad71532694f96f8813ed_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-09-27_2febaaba479fad71532694f96f8813ed_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-27_2febaaba479fad71532694f96f8813ed_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2496
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2664

C:\Users\Admin\AppData\Local\Temp\2024-09-27_2febaaba479fad71532694f96f8813ed_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-09-27_2febaaba479fad71532694f96f8813ed_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2492

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
140751082670bda9f7fa36a6aa498396

SHA1
c515cfcc27a49620041c5dc0dbb3bf044c64a030

SHA256
970e10e00399f50035743ebe23fd88a58f0f25d74280778e74a0878829ae11e1

SHA512
1346ba578385a14baf849d00061aa2427d526876f5268c6712eeb052fb300e18a8c898350baf1d860d31964ddd52613bd3c3a291d9284b1a0363c0ed4e5e50eb

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