wannacry | 778658e8dfe6d56777ede7c9a7bd0b8d4b7ad682a19c1cfb15be4223d5e5bd04

General

Target

2025-01-04_56b6936713b45003f21e654d8e5fe076_wannacry.exe
Size

3.6MB
MD5

56b6936713b45003f21e654d8e5fe076
SHA1

91138d067417e537113cfd887b73000af44f4636
SHA256

778658e8dfe6d56777ede7c9a7bd0b8d4b7ad682a19c1cfb15be4223d5e5bd04
SHA512

9d1142dcf7a124d5444b1888de500238926b76b889a13d78ce2e2af4dc91d4f4b3c71d79f7afc1e587cbf213c4dec4f88f4512037bc5b7a48477e84ef46f0737
SSDEEP

98304:yDqPoBhz1aRxcSUDk36SAEdhx3R8yAVp2HI:yDqPe1Cxcxk3ZAE1R8yc4HI

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Wannacry family
wannacry
Contacts a large (3051) 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
2576	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	2025-01-04_56b6936713b45003f21e654d8e5fe076_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2025-01-04_56b6936713b45003f21e654d8e5fe076_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	2025-01-04_56b6936713b45003f21e654d8e5fe076_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-04_56b6936713b45003f21e654d8e5fe076_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2025-01-04_56b6936713b45003f21e654d8e5fe076_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2025-01-04_56b6936713b45003f21e654d8e5fe076_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2025-01-04_56b6936713b45003f21e654d8e5fe076_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2025-01-04_56b6936713b45003f21e654d8e5fe076_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{BF7EE2FB-65E7-4035-9F42-591AB5F77DB3}\WpadDecisionReason = "1"	2025-01-04_56b6936713b45003f21e654d8e5fe076_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{BF7EE2FB-65E7-4035-9F42-591AB5F77DB3}\32-b4-8e-3c-a1-cb	2025-01-04_56b6936713b45003f21e654d8e5fe076_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2025-01-04_56b6936713b45003f21e654d8e5fe076_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-04_56b6936713b45003f21e654d8e5fe076_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2025-01-04_56b6936713b45003f21e654d8e5fe076_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2025-01-04_56b6936713b45003f21e654d8e5fe076_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0168000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-04_56b6936713b45003f21e654d8e5fe076_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{BF7EE2FB-65E7-4035-9F42-591AB5F77DB3}	2025-01-04_56b6936713b45003f21e654d8e5fe076_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{BF7EE2FB-65E7-4035-9F42-591AB5F77DB3}\WpadDecision = "0"	2025-01-04_56b6936713b45003f21e654d8e5fe076_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{BF7EE2FB-65E7-4035-9F42-591AB5F77DB3}\WpadNetworkName = "Network 3"	2025-01-04_56b6936713b45003f21e654d8e5fe076_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2025-01-04_56b6936713b45003f21e654d8e5fe076_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2025-01-04_56b6936713b45003f21e654d8e5fe076_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2025-01-04_56b6936713b45003f21e654d8e5fe076_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\32-b4-8e-3c-a1-cb	2025-01-04_56b6936713b45003f21e654d8e5fe076_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\32-b4-8e-3c-a1-cb\WpadDecisionReason = "1"	2025-01-04_56b6936713b45003f21e654d8e5fe076_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\32-b4-8e-3c-a1-cb\WpadDecision = "0"	2025-01-04_56b6936713b45003f21e654d8e5fe076_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-04_56b6936713b45003f21e654d8e5fe076_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{BF7EE2FB-65E7-4035-9F42-591AB5F77DB3}\WpadDecisionTime = 806e98d35f5edb01	2025-01-04_56b6936713b45003f21e654d8e5fe076_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\32-b4-8e-3c-a1-cb\WpadDecisionTime = 806e98d35f5edb01	2025-01-04_56b6936713b45003f21e654d8e5fe076_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2025-01-04_56b6936713b45003f21e654d8e5fe076_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2025-01-04_56b6936713b45003f21e654d8e5fe076_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-04_56b6936713b45003f21e654d8e5fe076_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2172
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2576

C:\Users\Admin\AppData\Local\Temp\2025-01-04_56b6936713b45003f21e654d8e5fe076_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2025-01-04_56b6936713b45003f21e654d8e5fe076_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2772

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
e23a0c039b52cf07a5f34f406d451227

SHA1
ec5b0ec8d0fd19e9968775f6007fd04ab9ce1174

SHA256
d6371f3f75ec915b35601ab89263ff26fc1e2ff443d88f5fb5d8032513060470

SHA512
a250b0f1da2e6c2dbaef0068690ddc40a26274cc9d8594df832e4415e7f99eeb72300d30564d0a38099679e565601d4d75ba4864865056f7e96bf1961647ff41

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Analysis

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