wannacry | f88896ee7a238e282b6d70971f2113ee11da11ba8797d84d0f629ce0b6fbf3c5

Analysis

max time kernel
150s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
resource tags

arch:x64arch:x86image:win10v2004-20220414-enlocale:en-usos:windows10-2004-x64system
submitted
20/07/2022, 01:41

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General

Target
eca094ab2d325e60b301e8deba35fa8b.dll
Size 5.0MB
Sample220720-b34v2aabf4
SHA256 f88896ee7a238e282b6d70971f2113ee11da11ba8797d84d0f629ce0b6fbf3c5
MD5 eca094ab2d325e60b301e8deba35fa8b
SHA1 9c4c8e778019818b146d0659c1219e423d06ccca
SHA512 c1703b8b131c8d1e7d62635c1862ab8a397e2722a797b83722add8200436e7a17e1da1fff64842d9e18752d02bf84f8e2c5e5ae417c8d377f1e1ab8a2a2c223d
MD5 SHA1 SHA512

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3289) amount of remote hosts 1 TTPs
This may indicate a network scan to discover remotely running services.
discovery

Network Service Scanning
T1046

Executes dropped EXE 3 IoCs

pid	Process
4324	mssecsvc.exe
4564	mssecsvc.exe
4964	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 Scanning
T1046

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\WINDOWS\mssecsvc.exe	rundll32.exe
File created	C:\WINDOWS\tasksche.exe	mssecsvc.exe

Modifies data under HKEY_USERS 5 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	mssecsvc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	mssecsvc.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4220 wrote to memory of 3468	4220	rundll32.exe	80
PID 4220 wrote to memory of 3468	4220	rundll32.exe	80
PID 4220 wrote to memory of 3468	4220	rundll32.exe	80
PID 3468 wrote to memory of 4324	3468	rundll32.exe	81
PID 3468 wrote to memory of 4324	3468	rundll32.exe	81
PID 3468 wrote to memory of 4324	3468	rundll32.exe	81

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\eca094ab2d325e60b301e8deba35fa8b.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4220
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\eca094ab2d325e60b301e8deba35fa8b.dll,#1
  2⤵
  - Drops file in Windows directory
  - Suspicious use of WriteProcessMemory
  PID:3468
- - C:\WINDOWS\mssecsvc.exe
    C:\WINDOWS\mssecsvc.exe
    3⤵
    - Executes dropped EXE
    - Drops file in Windows directory
    PID:4324
  - - C:\WINDOWS\tasksche.exe
      C:\WINDOWS\tasksche.exe /i
      4⤵
      Executes dropped EXE
      PID:4964

C:\WINDOWS\mssecsvc.exe
C:\WINDOWS\mssecsvc.exe -m security
1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:4564

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Network Service Scanning

T1046

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

mssecsvc.exe

Path C:\WINDOWS\mssecsvc.exe
Size 3.6MB
SHA256 dd554455be6d2adf8dcdf68b42c557b7d0e8e743ee2f3e0cdb0594641b45e39d
MD5 d33cda3e33c46c8fc18d648dffd56bad
SHA1 2805e04d687b06cf2a03c64ce1aab51549146e44
SHA512 00b93996cf1493d593e632bfe5b9b7a95f8b549403e03f37ddf14278c8a7e248e98b80214bd166f8f653c5ecbec22ed3f1933ec87fc09222159a2557030e78b6
SSDEEP 49152:XnAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAARdhnvxJM0H9PAMEc:XDqPoBhz1aRxcSUDk36SAEdhvxWa9P5
MD5 SHA1 SHA512 SSDEEP

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mssecsvc.exe

Path C:\Windows\mssecsvc.exe
Size 3.6MB
SHA256 dd554455be6d2adf8dcdf68b42c557b7d0e8e743ee2f3e0cdb0594641b45e39d
MD5 d33cda3e33c46c8fc18d648dffd56bad
SHA1 2805e04d687b06cf2a03c64ce1aab51549146e44
SHA512 00b93996cf1493d593e632bfe5b9b7a95f8b549403e03f37ddf14278c8a7e248e98b80214bd166f8f653c5ecbec22ed3f1933ec87fc09222159a2557030e78b6
SSDEEP 49152:XnAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAARdhnvxJM0H9PAMEc:XDqPoBhz1aRxcSUDk36SAEdhvxWa9P5
MD5 SHA1 SHA512 SSDEEP

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mssecsvc.exe

Path C:\Windows\mssecsvc.exe
Size 3.6MB
SHA256 dd554455be6d2adf8dcdf68b42c557b7d0e8e743ee2f3e0cdb0594641b45e39d
MD5 d33cda3e33c46c8fc18d648dffd56bad
SHA1 2805e04d687b06cf2a03c64ce1aab51549146e44
SHA512 00b93996cf1493d593e632bfe5b9b7a95f8b549403e03f37ddf14278c8a7e248e98b80214bd166f8f653c5ecbec22ed3f1933ec87fc09222159a2557030e78b6
SSDEEP 49152:XnAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAARdhnvxJM0H9PAMEc:XDqPoBhz1aRxcSUDk36SAEdhvxWa9P5
MD5 SHA1 SHA512 SSDEEP

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tasksche.exe

Path C:\Windows\tasksche.exe
Size 3.4MB
SHA256 1b88ec91307d556ca5c95dad8ab28d65e4e11b02050889fd8b850b54445feee5
MD5 6bd49aec118f6df4e2a7076dfbabfadd
SHA1 05304b7b4c61cf08f00f49e19cc85af9508b6ac4
SHA512 f7c0472977984b3a5377bd095719684f2e42f28b802035144820811a7684b4e845537b334c41dc89eb765e8903d4aaf5eec76a065deac8018f5e32904696cc73
SSDEEP 49152:nQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAARdhnvxJM0H9PAMEc:QqPoBhz1aRxcSUDk36SAEdhvxWa9P5
MD5 SHA1 SHA512 SSDEEP

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads