wannacry | 50601aefc90eeec3293a8ff01cdc838eb467b39baa4d821b488bde72a0cff2d0

Analysis

max time kernel
150s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20220718-en
resource tags

arch:x64arch:x86image:win10v2004-20220718-enlocale:en-usos:windows10-2004-x64system
submitted
20/07/2022, 01:16

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General

Target
226bc9bf49ebc95bfcf27565897de584.dll
Size 5.0MB
Sample220720-bmtp5aaad3
SHA256 50601aefc90eeec3293a8ff01cdc838eb467b39baa4d821b488bde72a0cff2d0
MD5 226bc9bf49ebc95bfcf27565897de584
SHA1 083d6f6cf152a6c23d5184a632a10336f584586c
SHA512 cf963c0f3fdaf2e438fe52d479a33e3daecda14b4013d9fc9f3168d2102b9597ea1ccfdcb12d789bc5c61537eecd0ec3113a71d036d7494533a2e1f86fef61a1
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 (3116) 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 2 IoCs

pid	Process
672	mssecsvr.exe
892	mssecsvr.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\mssecsvr.exe	rundll32.exe
File created	C:\WINDOWS\tasksche.exe	mssecsvr.exe

Modifies data under HKEY_USERS 5 IoCs

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

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2988 wrote to memory of 2748	2988	rundll32.exe	78
PID 2988 wrote to memory of 2748	2988	rundll32.exe	78
PID 2988 wrote to memory of 2748	2988	rundll32.exe	78
PID 2748 wrote to memory of 672	2748	rundll32.exe	79
PID 2748 wrote to memory of 672	2748	rundll32.exe	79
PID 2748 wrote to memory of 672	2748	rundll32.exe	79

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\226bc9bf49ebc95bfcf27565897de584.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2988
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\226bc9bf49ebc95bfcf27565897de584.dll,#1
  2⤵
  - Drops file in Windows directory
  - Suspicious use of WriteProcessMemory
  PID:2748
- - C:\WINDOWS\mssecsvr.exe
    C:\WINDOWS\mssecsvr.exe
    3⤵
    - Executes dropped EXE
    - Drops file in Windows directory
    PID:672

C:\WINDOWS\mssecsvr.exe
C:\WINDOWS\mssecsvr.exe -m security
1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:892

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

mssecsvr.exe

Path C:\WINDOWS\mssecsvr.exe
Size 2.2MB
SHA256 274e1b4dff5c9312061a6c6ccfd7bc7d21f26b4202baac5f5c78be2670b7f767
MD5 fc24c0d4be45c404a3f1df284dd4587c
SHA1 287ffd59c71e9bca5d40d0c23498564e8bd13465
SHA512 e04ae529de12b4808fd86b43774cdaa70ef57f6c124a50e2d9ad5ab77cd8c76927574b08accb9c72156b26941363b30e8dcbeb9d3626f1a41b0f2083862f2c72
SSDEEP 49152:QnoQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAARdhOvn:QbqPoBhz1aRxcSUDk36SAEdhGn
MD5 SHA1 SHA512 SSDEEP

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mssecsvr.exe

Path C:\Windows\mssecsvr.exe
Size 2.2MB
SHA256 274e1b4dff5c9312061a6c6ccfd7bc7d21f26b4202baac5f5c78be2670b7f767
MD5 fc24c0d4be45c404a3f1df284dd4587c
SHA1 287ffd59c71e9bca5d40d0c23498564e8bd13465
SHA512 e04ae529de12b4808fd86b43774cdaa70ef57f6c124a50e2d9ad5ab77cd8c76927574b08accb9c72156b26941363b30e8dcbeb9d3626f1a41b0f2083862f2c72
SSDEEP 49152:QnoQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAARdhOvn:QbqPoBhz1aRxcSUDk36SAEdhGn
MD5 SHA1 SHA512 SSDEEP

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mssecsvr.exe

Path C:\Windows\mssecsvr.exe
Size 2.2MB
SHA256 274e1b4dff5c9312061a6c6ccfd7bc7d21f26b4202baac5f5c78be2670b7f767
MD5 fc24c0d4be45c404a3f1df284dd4587c
SHA1 287ffd59c71e9bca5d40d0c23498564e8bd13465
SHA512 e04ae529de12b4808fd86b43774cdaa70ef57f6c124a50e2d9ad5ab77cd8c76927574b08accb9c72156b26941363b30e8dcbeb9d3626f1a41b0f2083862f2c72
SSDEEP 49152:QnoQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAARdhOvn:QbqPoBhz1aRxcSUDk36SAEdhGn
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