wannacry | 8db0318efac2fd1b02c8b9460923adc41493d82e7c91783e6bd9696bf22cbbad

General

Target
2024-10-13_31e65a13cb478eefcd6ba0c5bd82969f_wannacry.exe
Size 5.0MB
Sample241013-vgdaqsxcma
SHA256 8db0318efac2fd1b02c8b9460923adc41493d82e7c91783e6bd9696bf22cbbad
MD5 31e65a13cb478eefcd6ba0c5bd82969f
SHA1 b507d6384d38e443d617d8072854ab36b924b61c
SHA512 612c52b74ac571130274d97192a9330b0697176e9a3a71729948a834aa955954cd894382ec7fc8db62c44d39ad161c1df3d99bb74a86fd2692408b6c931ede1c
SSDEEP 98304:XDqPoBhz1aRESUDk36SSxWa9P+33AVp2H:XDqPe1CExk3ZFadQ3c4H
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3099) 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	2024-10-13_31e65a13cb478eefcd6ba0c5bd82969f_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-10-13_31e65a13cb478eefcd6ba0c5bd82969f_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_31e65a13cb478eefcd6ba0c5bd82969f_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-13_31e65a13cb478eefcd6ba0c5bd82969f_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\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0080000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-13_31e65a13cb478eefcd6ba0c5bd82969f_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{0CC45FEF-36B3-4564-B820-D84401BF7AC7}\WpadNetworkName = "Network 3"	2024-10-13_31e65a13cb478eefcd6ba0c5bd82969f_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\52-f9-d8-9d-ba-aa	2024-10-13_31e65a13cb478eefcd6ba0c5bd82969f_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-10-13_31e65a13cb478eefcd6ba0c5bd82969f_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-10-13_31e65a13cb478eefcd6ba0c5bd82969f_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-10-13_31e65a13cb478eefcd6ba0c5bd82969f_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-10-13_31e65a13cb478eefcd6ba0c5bd82969f_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-10-13_31e65a13cb478eefcd6ba0c5bd82969f_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\52-f9-d8-9d-ba-aa\WpadDecisionReason = "1"	2024-10-13_31e65a13cb478eefcd6ba0c5bd82969f_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\52-f9-d8-9d-ba-aa\WpadDecisionTime = 708843fc901ddb01	2024-10-13_31e65a13cb478eefcd6ba0c5bd82969f_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\52-f9-d8-9d-ba-aa\WpadDecision = "0"	2024-10-13_31e65a13cb478eefcd6ba0c5bd82969f_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-10-13_31e65a13cb478eefcd6ba0c5bd82969f_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-13_31e65a13cb478eefcd6ba0c5bd82969f_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{0CC45FEF-36B3-4564-B820-D84401BF7AC7}	2024-10-13_31e65a13cb478eefcd6ba0c5bd82969f_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{0CC45FEF-36B3-4564-B820-D84401BF7AC7}\WpadDecisionTime = 708843fc901ddb01	2024-10-13_31e65a13cb478eefcd6ba0c5bd82969f_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-10-13_31e65a13cb478eefcd6ba0c5bd82969f_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{0CC45FEF-36B3-4564-B820-D84401BF7AC7}\WpadDecisionReason = "1"	2024-10-13_31e65a13cb478eefcd6ba0c5bd82969f_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{0CC45FEF-36B3-4564-B820-D84401BF7AC7}\WpadDecision = "0"	2024-10-13_31e65a13cb478eefcd6ba0c5bd82969f_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-13_31e65a13cb478eefcd6ba0c5bd82969f_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-13_31e65a13cb478eefcd6ba0c5bd82969f_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-10-13_31e65a13cb478eefcd6ba0c5bd82969f_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-13_31e65a13cb478eefcd6ba0c5bd82969f_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-10-13_31e65a13cb478eefcd6ba0c5bd82969f_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{0CC45FEF-36B3-4564-B820-D84401BF7AC7}\52-f9-d8-9d-ba-aa	2024-10-13_31e65a13cb478eefcd6ba0c5bd82969f_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-10-13_31e65a13cb478eefcd6ba0c5bd82969f_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-13_31e65a13cb478eefcd6ba0c5bd82969f_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1084
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2928

C:\Users\Admin\AppData\Local\Temp\2024-10-13_31e65a13cb478eefcd6ba0c5bd82969f_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-10-13_31e65a13cb478eefcd6ba0c5bd82969f_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:740

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

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Downloads

tasksche.exe

Path C:\Windows\tasksche.exe
Size 3.4MB
SHA256 28a68a0ab5e3e13689860d748dd67cdcf553fb326c02952e9784462e3067a99f
MD5 99cab4e4ece2c5e875595864e1f9f9db
SHA1 0c8d1902ed7d5165b1e3e34bcd5f3acaa4cecc18
SHA512 10e2d47898e691a6d60f1ad3d791265ef959a7245305d9a732c9150ce10bc01c01be17f9321a9b08ab7416cabdb76bde5240b6ac578ef3fbc779a696fa6b1d02
SSDEEP 98304:QqPoBhz1aRESUDk36SSxWa9P+33AVp2Hj:QqPe1CExk3ZFadQ3c4Hj
MD5 SHA1 SHA512 SSDEEP

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