wannacry | 798f44b4f8e438e7eef7394b1a7dc4de221b46985c0dc25561c7dd41f051be16

General

Target

798f44b4f8e438e7eef7394b1a7dc4de221b46985c0dc25561c7dd41f051be16.exe
Size

3.6MB
MD5

583e79d805cfd365d6cece8cfa1ce0d2
SHA1

c2ce3f6d695a4c40727c9f9a98bc46dd03079f32
SHA256

798f44b4f8e438e7eef7394b1a7dc4de221b46985c0dc25561c7dd41f051be16
SHA512

2778e93f9c6ef4a1c22c152d6eed3b114830b62cfa13f661765e7bbb9c9aa1849c02f2bacd0e86a633514a1feb204c4c49f3e148379a5b0ee10390e3afebf9a2
SSDEEP

24576:XbLgddQhfdmMSirYbcMNge71cPXTZd1+IE8SBk4GhGP5qfl8J0a7:XnAQqMSPbcBu1cPoykP5qN8ya7

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 (2487) 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
2332	tasksche.exe

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	798f44b4f8e438e7eef7394b1a7dc4de221b46985c0dc25561c7dd41f051be16.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	798f44b4f8e438e7eef7394b1a7dc4de221b46985c0dc25561c7dd41f051be16.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	798f44b4f8e438e7eef7394b1a7dc4de221b46985c0dc25561c7dd41f051be16.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	798f44b4f8e438e7eef7394b1a7dc4de221b46985c0dc25561c7dd41f051be16.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	798f44b4f8e438e7eef7394b1a7dc4de221b46985c0dc25561c7dd41f051be16.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0198000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	798f44b4f8e438e7eef7394b1a7dc4de221b46985c0dc25561c7dd41f051be16.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2BBFA700-23CB-4E1A-8ED1-1E2C83FC60FE}	798f44b4f8e438e7eef7394b1a7dc4de221b46985c0dc25561c7dd41f051be16.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\9e-ea-94-7a-31-23	798f44b4f8e438e7eef7394b1a7dc4de221b46985c0dc25561c7dd41f051be16.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	798f44b4f8e438e7eef7394b1a7dc4de221b46985c0dc25561c7dd41f051be16.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	798f44b4f8e438e7eef7394b1a7dc4de221b46985c0dc25561c7dd41f051be16.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	798f44b4f8e438e7eef7394b1a7dc4de221b46985c0dc25561c7dd41f051be16.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\9e-ea-94-7a-31-23\WpadDecision = "0"	798f44b4f8e438e7eef7394b1a7dc4de221b46985c0dc25561c7dd41f051be16.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2BBFA700-23CB-4E1A-8ED1-1E2C83FC60FE}\WpadNetworkName = "Network 3"	798f44b4f8e438e7eef7394b1a7dc4de221b46985c0dc25561c7dd41f051be16.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2BBFA700-23CB-4E1A-8ED1-1E2C83FC60FE}\9e-ea-94-7a-31-23	798f44b4f8e438e7eef7394b1a7dc4de221b46985c0dc25561c7dd41f051be16.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	798f44b4f8e438e7eef7394b1a7dc4de221b46985c0dc25561c7dd41f051be16.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	798f44b4f8e438e7eef7394b1a7dc4de221b46985c0dc25561c7dd41f051be16.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	798f44b4f8e438e7eef7394b1a7dc4de221b46985c0dc25561c7dd41f051be16.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	798f44b4f8e438e7eef7394b1a7dc4de221b46985c0dc25561c7dd41f051be16.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	798f44b4f8e438e7eef7394b1a7dc4de221b46985c0dc25561c7dd41f051be16.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2BBFA700-23CB-4E1A-8ED1-1E2C83FC60FE}\WpadDecisionTime = 20d2703bdf63db01	798f44b4f8e438e7eef7394b1a7dc4de221b46985c0dc25561c7dd41f051be16.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\9e-ea-94-7a-31-23\WpadDecisionReason = "1"	798f44b4f8e438e7eef7394b1a7dc4de221b46985c0dc25561c7dd41f051be16.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\9e-ea-94-7a-31-23\WpadDecisionTime = 20d2703bdf63db01	798f44b4f8e438e7eef7394b1a7dc4de221b46985c0dc25561c7dd41f051be16.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	798f44b4f8e438e7eef7394b1a7dc4de221b46985c0dc25561c7dd41f051be16.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	798f44b4f8e438e7eef7394b1a7dc4de221b46985c0dc25561c7dd41f051be16.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	798f44b4f8e438e7eef7394b1a7dc4de221b46985c0dc25561c7dd41f051be16.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	798f44b4f8e438e7eef7394b1a7dc4de221b46985c0dc25561c7dd41f051be16.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2BBFA700-23CB-4E1A-8ED1-1E2C83FC60FE}\WpadDecisionReason = "1"	798f44b4f8e438e7eef7394b1a7dc4de221b46985c0dc25561c7dd41f051be16.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2BBFA700-23CB-4E1A-8ED1-1E2C83FC60FE}\WpadDecision = "0"	798f44b4f8e438e7eef7394b1a7dc4de221b46985c0dc25561c7dd41f051be16.exe

C:\Users\Admin\AppData\Local\Temp\798f44b4f8e438e7eef7394b1a7dc4de221b46985c0dc25561c7dd41f051be16.exe
"C:\Users\Admin\AppData\Local\Temp\798f44b4f8e438e7eef7394b1a7dc4de221b46985c0dc25561c7dd41f051be16.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2988
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2332

C:\Users\Admin\AppData\Local\Temp\798f44b4f8e438e7eef7394b1a7dc4de221b46985c0dc25561c7dd41f051be16.exe
C:\Users\Admin\AppData\Local\Temp\798f44b4f8e438e7eef7394b1a7dc4de221b46985c0dc25561c7dd41f051be16.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2104

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Network Service Discovery

1

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

C:\Windows\tasksche.exe

Filesize
3.4MB

MD5
6338b8ee8ee2c042f74ccb3e99e7750b

SHA1
dfc909c2be82bc26519b413023e176a648e14c12

SHA256
2bdf03850ae71e1f8610e9b925a449a472b63f61eacbe1651460dc2314006bdb

SHA512
a120254cc5a50f475d5912c9a97c0962712638a89d03768698e501cc53cee3ccfd55d91fe70ea07b9fa68c0389ff6727d085618c406b4d6316f02e0737f9ce36

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Analysis

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