wannacry | e5eb5af2180ef5da1c34fa05ecf73190a67e10714485dee3619f56de6d43d077

Analysis

max time kernel
150s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
23/12/2022, 11:20

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General

Target
8e6bfea06cb00553ee29b3822b349bd6.dll
Size 5.0MB
Sample221223-nffadagd48
SHA256 e5eb5af2180ef5da1c34fa05ecf73190a67e10714485dee3619f56de6d43d077
MD5 8e6bfea06cb00553ee29b3822b349bd6
SHA1 111be7f3c2978cbe22f4098eadff995a8484f769
SHA512 bbfffbbdcbc449c5e71d0c1005ddbd82b98934dbf1aaf02391705f7b02e4de80387daae482ec3388408290562a2e996128a9ca6388404ac817ee3a98e3660a85
SSDEEP 98304:T8qPoBhzhaRxcSUDk36SAEdhvxWa9P593R8yAVp2H:T8qPehCxcxk3ZAEUadzR8yc4H
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry

Executes dropped EXE 3 IoCs

pid	Process
4280	mssecsvc.exe
3796	mssecsvc.exe
828	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

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 5048 wrote to memory of 3036	5048	rundll32.exe	84
PID 5048 wrote to memory of 3036	5048	rundll32.exe	84
PID 5048 wrote to memory of 3036	5048	rundll32.exe	84
PID 3036 wrote to memory of 4280	3036	rundll32.exe	85
PID 3036 wrote to memory of 4280	3036	rundll32.exe	85
PID 3036 wrote to memory of 4280	3036	rundll32.exe	85

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\8e6bfea06cb00553ee29b3822b349bd6.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:5048
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\8e6bfea06cb00553ee29b3822b349bd6.dll,#1
  2⤵
  - Drops file in Windows directory
  - Suspicious use of WriteProcessMemory
  PID:3036
- - C:\WINDOWS\mssecsvc.exe
    C:\WINDOWS\mssecsvc.exe
    3⤵
    - Executes dropped EXE
    - Drops file in Windows directory
    PID:4280
  - - C:\WINDOWS\tasksche.exe
      C:\WINDOWS\tasksche.exe /i
      4⤵
      Executes dropped EXE
      PID:828

C:\WINDOWS\mssecsvc.exe
C:\WINDOWS\mssecsvc.exe -m security
1⤵
- Executes dropped EXE
PID:3796

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 02842b28f4fda74360b6c9d2fde8c527ae4eb3a7d85c51a705c8ac1b8162b745
MD5 5626567f8de5dcb607b25eef7b0c22a2
SHA1 55121925005abed7bc90f7c466b00ef1db6dbb65
SHA512 88292efae6ef3ef33dd6519049897ce31db9d36635eed309706bbec0b44f3662bd42cc2f765d779cdb3888c3b37841bfcdf3bf4e008d62ee042a002842bfa60c
SSDEEP 98304:X8qPoBhzhaRxcSUDk36SAEdhvxWa9P593R8yAVp2HI:X8qPehCxcxk3ZAEUadzR8yc4HI
MD5 SHA1 SHA512 SSDEEP

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mssecsvc.exe

Path C:\Windows\mssecsvc.exe
Size 3.6MB
SHA256 02842b28f4fda74360b6c9d2fde8c527ae4eb3a7d85c51a705c8ac1b8162b745
MD5 5626567f8de5dcb607b25eef7b0c22a2
SHA1 55121925005abed7bc90f7c466b00ef1db6dbb65
SHA512 88292efae6ef3ef33dd6519049897ce31db9d36635eed309706bbec0b44f3662bd42cc2f765d779cdb3888c3b37841bfcdf3bf4e008d62ee042a002842bfa60c
SSDEEP 98304:X8qPoBhzhaRxcSUDk36SAEdhvxWa9P593R8yAVp2HI:X8qPehCxcxk3ZAEUadzR8yc4HI
MD5 SHA1 SHA512 SSDEEP

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mssecsvc.exe

Path C:\Windows\mssecsvc.exe
Size 3.6MB
SHA256 02842b28f4fda74360b6c9d2fde8c527ae4eb3a7d85c51a705c8ac1b8162b745
MD5 5626567f8de5dcb607b25eef7b0c22a2
SHA1 55121925005abed7bc90f7c466b00ef1db6dbb65
SHA512 88292efae6ef3ef33dd6519049897ce31db9d36635eed309706bbec0b44f3662bd42cc2f765d779cdb3888c3b37841bfcdf3bf4e008d62ee042a002842bfa60c
SSDEEP 98304:X8qPoBhzhaRxcSUDk36SAEdhvxWa9P593R8yAVp2HI:X8qPehCxcxk3ZAEUadzR8yc4HI
MD5 SHA1 SHA512 SSDEEP

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tasksche.exe

Path C:\Windows\tasksche.exe
Size 3.4MB
SHA256 cd52676f3d2dd8c5cf8c5ce7db95da0bb0a36af987ab1ad1c5446af832b1a5fb
MD5 7d7daa1572af8f0743bbbf0d6c7b71e6
SHA1 c9483bdf24967ecf8c2179be785fdb3cef4c5e80
SHA512 24f74f77656a296a23fd6100c96b3b2debf2a9617d79450f39c43448b116c5c8c03115874af29ec481499ec0a1ed00605f54c9a8c948a47b158a96f6c1154745
SSDEEP 98304:QqPoBhzhaRxcSUDk36SAEdhvxWa9P593R8yAVp2Hj:QqPehCxcxk3ZAEUadzR8yc4Hj
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