wannacry | d085c477ebf60d0deb312b8a1e3aa08a04c0a61acb6f8085463e3f230314edc7

Resubmissions

10/10/2022, 13:41

221010-qzcdyacaa610

10/10/2022, 11:24

221010-nhp8csbfb710

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
10/10/2022, 11:24

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General

Target
d085c477ebf60d0deb312b8a1e3aa08a04c0a61acb6f8085463e3f230314edc7.dll
Size 5.0MB
Sample221010-nhp8csbfb7
SHA256 d085c477ebf60d0deb312b8a1e3aa08a04c0a61acb6f8085463e3f230314edc7
MD5 64f90ae0b16ad69df763d4172bf7b121
SHA1 cd13b94c91bcc035464c28ca953b1fca990f59d5
SHA512 4d3987cf1e8f6d19f9d7c2009a579deb4793bba89fa12087a865ab4638b20183068520e656d0573974fd8ff8cc6b555f1b6289251d0864852412b070590b88fe
SSDEEP 49152:SnAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAARdhnvxJM0H9Z:+DqPoBhz1aRxcSUDk36SAEdhvxWa9Z
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3307) 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
3368	mssecsvc.exe
4332	mssecsvc.exe
2216	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 4960 wrote to memory of 4856	4960	rundll32.exe	82
PID 4960 wrote to memory of 4856	4960	rundll32.exe	82
PID 4960 wrote to memory of 4856	4960	rundll32.exe	82
PID 4856 wrote to memory of 3368	4856	rundll32.exe	84
PID 4856 wrote to memory of 3368	4856	rundll32.exe	84
PID 4856 wrote to memory of 3368	4856	rundll32.exe	84

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\d085c477ebf60d0deb312b8a1e3aa08a04c0a61acb6f8085463e3f230314edc7.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4960
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\d085c477ebf60d0deb312b8a1e3aa08a04c0a61acb6f8085463e3f230314edc7.dll,#1
  2⤵
  - Drops file in Windows directory
  - Suspicious use of WriteProcessMemory
  PID:4856
- - C:\WINDOWS\mssecsvc.exe
    C:\WINDOWS\mssecsvc.exe
    3⤵
    - Executes dropped EXE
    - Drops file in Windows directory
    PID:3368
  - - C:\WINDOWS\tasksche.exe
      C:\WINDOWS\tasksche.exe /i
      4⤵
      Executes dropped EXE
      PID:2216

C:\WINDOWS\mssecsvc.exe
C:\WINDOWS\mssecsvc.exe -m security
1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:4332

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 bbc4e7f739d9e7f38a343fc018bf5df9d654ed1a52dcaf00b6cc6cfdc8b18cbd
MD5 797d5d31c4e6c1accb2cbfddec8d66b9
SHA1 dd5d04b01214dffdd75c575eefd342026c66a39d
SHA512 ec26bd4120474d5a996a61c202befb548b5add6ac933986f6a992d050f00ccc3ebe49d19dc6946479da5605067df7b02f26f56e64855b029721f8789ae563e42
SSDEEP 49152:2nAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAARdhnvxJM0H9ZI:yDqPoBhz1aRxcSUDk36SAEdhvxWa9ZI
MD5 SHA1 SHA512 SSDEEP

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mssecsvc.exe

Path C:\Windows\mssecsvc.exe
Size 3.6MB
SHA256 bbc4e7f739d9e7f38a343fc018bf5df9d654ed1a52dcaf00b6cc6cfdc8b18cbd
MD5 797d5d31c4e6c1accb2cbfddec8d66b9
SHA1 dd5d04b01214dffdd75c575eefd342026c66a39d
SHA512 ec26bd4120474d5a996a61c202befb548b5add6ac933986f6a992d050f00ccc3ebe49d19dc6946479da5605067df7b02f26f56e64855b029721f8789ae563e42
SSDEEP 49152:2nAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAARdhnvxJM0H9ZI:yDqPoBhz1aRxcSUDk36SAEdhvxWa9ZI
MD5 SHA1 SHA512 SSDEEP

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mssecsvc.exe

Path C:\Windows\mssecsvc.exe
Size 3.6MB
SHA256 bbc4e7f739d9e7f38a343fc018bf5df9d654ed1a52dcaf00b6cc6cfdc8b18cbd
MD5 797d5d31c4e6c1accb2cbfddec8d66b9
SHA1 dd5d04b01214dffdd75c575eefd342026c66a39d
SHA512 ec26bd4120474d5a996a61c202befb548b5add6ac933986f6a992d050f00ccc3ebe49d19dc6946479da5605067df7b02f26f56e64855b029721f8789ae563e42
SSDEEP 49152:2nAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAARdhnvxJM0H9ZI:yDqPoBhz1aRxcSUDk36SAEdhvxWa9ZI
MD5 SHA1 SHA512 SSDEEP

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tasksche.exe

Path C:\Windows\tasksche.exe
Size 3.4MB
SHA256 84b63d5d32bdbc8570257cbd5592c37626c1808a662ad70ae8972a75b4c61158
MD5 04af554ac498ed9e1353a8751bee6001
SHA1 077c84f26b471c1b0075490d89fdfc5de6f7b9af
SHA512 9fb261d4f2cedd26934df9f15f9044c22beaecbe109646fd0604b615344a9be124598018844b18b4a6e279df2431dba0158c9cf566036ecbbd3681e6e97e866a
SSDEEP 49152:nQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAARdhnvxJM0H9Zj:QqPoBhz1aRxcSUDk36SAEdhvxWa9Zj
MD5 SHA1 SHA512 SSDEEP

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Resubmissions

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads