wannacry | 7b705fc7439484ce60390fc18da8d007cd22b50814d8bc6377aeace29259d67b

Analysis

max time kernel
150s
max time network
153s
platform
windows7_x64
resource
win7-20220718-en
resource tags

arch:x64arch:x86image:win7-20220718-enlocale:en-usos:windows7-x64system
submitted
20/07/2022, 03:38

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General

Target
5487a25a022a0e11c478a205868e6903.dll
Size 5.0MB
Sample220720-d627qabdf5
SHA256 7b705fc7439484ce60390fc18da8d007cd22b50814d8bc6377aeace29259d67b
MD5 5487a25a022a0e11c478a205868e6903
SHA1 30a1a972956cdadb1cf6bcf2b3da0d9bd3913160
SHA512 c80326b1d5952a221f124b6e8db2032075d3e07677030abd37343103fa0fa26b89e1fee112589def0d7d41a76b6fd96291dba481358c7666036938b6295cf5a1
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 (1271) 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
1944	mssecsvc.exe
1128	mssecsvc.exe
1696	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	mssecsvc.exe

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 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	mssecsvc.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1956 wrote to memory of 1856	1956	rundll32.exe	28
PID 1956 wrote to memory of 1856	1956	rundll32.exe	28
PID 1956 wrote to memory of 1856	1956	rundll32.exe	28
PID 1956 wrote to memory of 1856	1956	rundll32.exe	28
PID 1956 wrote to memory of 1856	1956	rundll32.exe	28
PID 1956 wrote to memory of 1856	1956	rundll32.exe	28
PID 1956 wrote to memory of 1856	1956	rundll32.exe	28
PID 1856 wrote to memory of 1944	1856	rundll32.exe	29
PID 1856 wrote to memory of 1944	1856	rundll32.exe	29
PID 1856 wrote to memory of 1944	1856	rundll32.exe	29
PID 1856 wrote to memory of 1944	1856	rundll32.exe	29

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\5487a25a022a0e11c478a205868e6903.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1956
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\5487a25a022a0e11c478a205868e6903.dll,#1
  2⤵
  - Drops file in Windows directory
  - Suspicious use of WriteProcessMemory
  PID:1856
- - C:\WINDOWS\mssecsvc.exe
    C:\WINDOWS\mssecsvc.exe
    3⤵
    - Executes dropped EXE
    - Drops file in Windows directory
    PID:1944
  - - C:\WINDOWS\tasksche.exe
      C:\WINDOWS\tasksche.exe /i
      4⤵
      Executes dropped EXE
      PID:1696

C:\WINDOWS\mssecsvc.exe
C:\WINDOWS\mssecsvc.exe -m security
1⤵
- Executes dropped EXE
- Drops file in System32 directory
- Modifies data under HKEY_USERS
PID:1128

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 f93697aa84a41ad6cb75330b1958cfa5cd8efd0467f52bc48476cd64e45c7df4
MD5 37261c41fcf04f574b45a0170cae6f35
SHA1 744c1bc63b81b15fa125868bbb497638eb6aa371
SHA512 e9cc92fea18d68fa5e49570b652b1776aaa3b17205d7f1628114a4a84b751b8025f253cbe2177132a8639e23fbcc7958bb3b717758b46a48c94e42d61d81d40b
SSDEEP 24576:VbLgdeQhfdmMSirYbcMNgef0QeQjG/D8kIqRYoAdNLK:VnjQqMSPbcBVQej/1IN
MD5 SHA1 SHA512 SSDEEP

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mssecsvc.exe

Path C:\Windows\mssecsvc.exe
Size 3.6MB
SHA256 f93697aa84a41ad6cb75330b1958cfa5cd8efd0467f52bc48476cd64e45c7df4
MD5 37261c41fcf04f574b45a0170cae6f35
SHA1 744c1bc63b81b15fa125868bbb497638eb6aa371
SHA512 e9cc92fea18d68fa5e49570b652b1776aaa3b17205d7f1628114a4a84b751b8025f253cbe2177132a8639e23fbcc7958bb3b717758b46a48c94e42d61d81d40b
SSDEEP 24576:VbLgdeQhfdmMSirYbcMNgef0QeQjG/D8kIqRYoAdNLK:VnjQqMSPbcBVQej/1IN
MD5 SHA1 SHA512 SSDEEP

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mssecsvc.exe

Path C:\Windows\mssecsvc.exe
Size 3.6MB
SHA256 f93697aa84a41ad6cb75330b1958cfa5cd8efd0467f52bc48476cd64e45c7df4
MD5 37261c41fcf04f574b45a0170cae6f35
SHA1 744c1bc63b81b15fa125868bbb497638eb6aa371
SHA512 e9cc92fea18d68fa5e49570b652b1776aaa3b17205d7f1628114a4a84b751b8025f253cbe2177132a8639e23fbcc7958bb3b717758b46a48c94e42d61d81d40b
SSDEEP 24576:VbLgdeQhfdmMSirYbcMNgef0QeQjG/D8kIqRYoAdNLK:VnjQqMSPbcBVQej/1IN
MD5 SHA1 SHA512 SSDEEP

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tasksche.exe

Path C:\Windows\tasksche.exe
Size 3.4MB
SHA256 95a56817b2b40d2d82da8ebe38ffeb88602f83b98eb15d7a0041339fdc8bbf65
MD5 394b984a1ca961a1879afb40df3f002d
SHA1 8e4b15358ba96825da179d5f8f525f1764d066a4
SHA512 b9066212ed5f614d25ce24beb887b106179f757e7c8118a3a473dcf84dcfd54d200f533eadfb1ea65eb0dd2920bc95f4dc3a66d46b346431a873ab38a404921f
SSDEEP 24576:nQhfdmMSirYbcMNgef0QeQjG/D8kIqRYoAdNLK:nQqMSPbcBVQej/1IN
MD5 SHA1 SHA512 SSDEEP

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memory/1856-55-0x00000000756B1000-0x00000000756B3000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads