wannacry | a172fa16bf9b3c69868b8e9db4a3c9c0e40da552c6c978d667d2daed05474296

General

Target

2024-08-22_18fbef29b034e81460b9886bf81fabd3_wannacry.exe
Size

5.0MB
MD5

18fbef29b034e81460b9886bf81fabd3
SHA1

6a083a304ce68d5e1d7aa8582d49f41028b36f40
SHA256

a172fa16bf9b3c69868b8e9db4a3c9c0e40da552c6c978d667d2daed05474296
SHA512

11ae109368007395ba3f367dfc87f8e069f238d9c9798ce1b31ff860755066480ad6c970942ffefe7070151af9ad642f3a54a7471dac5f90a9cf04ba4124142b
SSDEEP

24576:2bLgddQhfdmMSirYbcMNgef0QeQjG/D8kIqRYoAdNL:2nAQqMSPbcBVQej/1IN

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3265) 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
1652	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	2024-08-22_18fbef29b034e81460b9886bf81fabd3_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-08-22_18fbef29b034e81460b9886bf81fabd3_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	2024-08-22_18fbef29b034e81460b9886bf81fabd3_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-08-22_18fbef29b034e81460b9886bf81fabd3_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\AutoDetect = "1"	2024-08-22_18fbef29b034e81460b9886bf81fabd3_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-08-22_18fbef29b034e81460b9886bf81fabd3_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0069000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-08-22_18fbef29b034e81460b9886bf81fabd3_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{1528B3CE-FA01-4FFB-9C11-35454ADA4214}\WpadDecisionTime = c02967fb64f4da01	2024-08-22_18fbef29b034e81460b9886bf81fabd3_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-08-22_18fbef29b034e81460b9886bf81fabd3_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-08-22_18fbef29b034e81460b9886bf81fabd3_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-08-22_18fbef29b034e81460b9886bf81fabd3_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\96-fe-df-bc-7e-38\WpadDecisionReason = "1"	2024-08-22_18fbef29b034e81460b9886bf81fabd3_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-08-22_18fbef29b034e81460b9886bf81fabd3_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-08-22_18fbef29b034e81460b9886bf81fabd3_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{1528B3CE-FA01-4FFB-9C11-35454ADA4214}\WpadNetworkName = "Network 3"	2024-08-22_18fbef29b034e81460b9886bf81fabd3_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\96-fe-df-bc-7e-38	2024-08-22_18fbef29b034e81460b9886bf81fabd3_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\96-fe-df-bc-7e-38\WpadDecisionTime = c02967fb64f4da01	2024-08-22_18fbef29b034e81460b9886bf81fabd3_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\96-fe-df-bc-7e-38\WpadDecision = "0"	2024-08-22_18fbef29b034e81460b9886bf81fabd3_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-08-22_18fbef29b034e81460b9886bf81fabd3_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-08-22_18fbef29b034e81460b9886bf81fabd3_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{1528B3CE-FA01-4FFB-9C11-35454ADA4214}\WpadDecisionReason = "1"	2024-08-22_18fbef29b034e81460b9886bf81fabd3_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-08-22_18fbef29b034e81460b9886bf81fabd3_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{1528B3CE-FA01-4FFB-9C11-35454ADA4214}	2024-08-22_18fbef29b034e81460b9886bf81fabd3_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{1528B3CE-FA01-4FFB-9C11-35454ADA4214}\WpadDecision = "0"	2024-08-22_18fbef29b034e81460b9886bf81fabd3_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{1528B3CE-FA01-4FFB-9C11-35454ADA4214}\96-fe-df-bc-7e-38	2024-08-22_18fbef29b034e81460b9886bf81fabd3_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-08-22_18fbef29b034e81460b9886bf81fabd3_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-08-22_18fbef29b034e81460b9886bf81fabd3_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-08-22_18fbef29b034e81460b9886bf81fabd3_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-08-22_18fbef29b034e81460b9886bf81fabd3_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-08-22_18fbef29b034e81460b9886bf81fabd3_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1948
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:1652

C:\Users\Admin\AppData\Local\Temp\2024-08-22_18fbef29b034e81460b9886bf81fabd3_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-08-22_18fbef29b034e81460b9886bf81fabd3_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:1648

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
b52e17e496f3aa650df145abcc791b21

SHA1
91497a92d8e0bf6f9a42649d0e88471672328037

SHA256
87c5d2a9e60641a02f195eeb4f83eba15f87a68b961e8df0013d325e8da56488

SHA512
2a670f7e869f763d1c210c5494fb52ab99cce5aeac094ffc518d633796b18457d2794049332520ce17512c09c8f69b297c709a0c85bfda5450cb7aaf72e53655

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Analysis

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