wannacry | 04f91163a4015faef9fdd7ae5d8e61db0e9a50906431a2816fc52634a8c3aef2

General

Target

2024-10-12_c2ad06ea7b80d64fa5a175371f7d0927_wannacry.exe
Size

3.6MB
MD5

c2ad06ea7b80d64fa5a175371f7d0927
SHA1

f38960c22bd6b300a6e79e9ae50fd43084cb7ca5
SHA256

04f91163a4015faef9fdd7ae5d8e61db0e9a50906431a2816fc52634a8c3aef2
SHA512

d50c6fb06640a5387d372add96debe0da173287ebcc5a05bcb512ccfa7286aeb00a2f620294bbebf9bb70f056603f20aa489c6d4af499a9f45a948ae7382bb28
SSDEEP

98304:yDqPoBhz1aRxcSUDk36SAEdhv2593R8yAVp2HI:yDqPe1Cxcxk3ZAESzR8yc4HI

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3320) 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
2680	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	2024-10-12_c2ad06ea7b80d64fa5a175371f7d0927_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-10-12_c2ad06ea7b80d64fa5a175371f7d0927_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	2024-10-12_c2ad06ea7b80d64fa5a175371f7d0927_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-12_c2ad06ea7b80d64fa5a175371f7d0927_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\4a-3b-ff-8f-95-2c\WpadDecision = "0"	2024-10-12_c2ad06ea7b80d64fa5a175371f7d0927_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-12_c2ad06ea7b80d64fa5a175371f7d0927_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-10-12_c2ad06ea7b80d64fa5a175371f7d0927_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{53BF6718-92A5-4F1A-8083-46CA22CF3C00}	2024-10-12_c2ad06ea7b80d64fa5a175371f7d0927_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{53BF6718-92A5-4F1A-8083-46CA22CF3C00}\WpadDecisionReason = "1"	2024-10-12_c2ad06ea7b80d64fa5a175371f7d0927_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4a-3b-ff-8f-95-2c	2024-10-12_c2ad06ea7b80d64fa5a175371f7d0927_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{53BF6718-92A5-4F1A-8083-46CA22CF3C00}\4a-3b-ff-8f-95-2c	2024-10-12_c2ad06ea7b80d64fa5a175371f7d0927_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4a-3b-ff-8f-95-2c\WpadDecisionTime = 300a8bb9641cdb01	2024-10-12_c2ad06ea7b80d64fa5a175371f7d0927_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_c2ad06ea7b80d64fa5a175371f7d0927_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-12_c2ad06ea7b80d64fa5a175371f7d0927_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-10-12_c2ad06ea7b80d64fa5a175371f7d0927_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-10-12_c2ad06ea7b80d64fa5a175371f7d0927_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0121000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_c2ad06ea7b80d64fa5a175371f7d0927_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{53BF6718-92A5-4F1A-8083-46CA22CF3C00}\WpadDecision = "0"	2024-10-12_c2ad06ea7b80d64fa5a175371f7d0927_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{53BF6718-92A5-4F1A-8083-46CA22CF3C00}\WpadNetworkName = "Network 3"	2024-10-12_c2ad06ea7b80d64fa5a175371f7d0927_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4a-3b-ff-8f-95-2c\WpadDecisionReason = "1"	2024-10-12_c2ad06ea7b80d64fa5a175371f7d0927_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-10-12_c2ad06ea7b80d64fa5a175371f7d0927_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_c2ad06ea7b80d64fa5a175371f7d0927_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-10-12_c2ad06ea7b80d64fa5a175371f7d0927_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-10-12_c2ad06ea7b80d64fa5a175371f7d0927_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-10-12_c2ad06ea7b80d64fa5a175371f7d0927_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{53BF6718-92A5-4F1A-8083-46CA22CF3C00}\WpadDecisionTime = 300a8bb9641cdb01	2024-10-12_c2ad06ea7b80d64fa5a175371f7d0927_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-10-12_c2ad06ea7b80d64fa5a175371f7d0927_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-10-12_c2ad06ea7b80d64fa5a175371f7d0927_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-10-12_c2ad06ea7b80d64fa5a175371f7d0927_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-12_c2ad06ea7b80d64fa5a175371f7d0927_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2848
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2680

C:\Users\Admin\AppData\Local\Temp\2024-10-12_c2ad06ea7b80d64fa5a175371f7d0927_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-10-12_c2ad06ea7b80d64fa5a175371f7d0927_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2652

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
5cf8caa231a64bfdc5b7aa336b519eca

SHA1
8b8602db114b021f43e5d8bdd1915f88940c8dcf

SHA256
f8826daa37e3c4ff92a0e397a07038f6b0baec3dc02105fa70f8fee2e53b10c7

SHA512
40c22032795263011891f15308488aab8668286ce7b54cc09d06bc81abc76074d8b844a5dddd02d23a8d7cb17a336d8ec007a624527259588462c604799ab465

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Analysis

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