wannacry | f6969106a17b8a55207264c2f32131870cb5c83cef4182eea9a6e3f4e7af49f8

Analysis

max time kernel
151s
max time network
154s
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, 07:37

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General

Target
d30aa7aad0beb177a00f6af0946239b6.dll
Size 5.0MB
Sample220720-jftesadbg3
SHA256 f6969106a17b8a55207264c2f32131870cb5c83cef4182eea9a6e3f4e7af49f8
MD5 d30aa7aad0beb177a00f6af0946239b6
SHA1 3ad164445af28132cb660566e69b0fbf90f72855
SHA512 bbb1fb3316f224655d88e85a05831132296a8214567c32ed58d8d8f4f828bc57b8b0eed45296835e683a33d3b90ab249b00c1e02c749b2cd4ea7b17f1e74d8c0
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 (3321) 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
4460	mssecsvr.exe
4624	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 3768 wrote to memory of 4284	3768	rundll32.exe	79
PID 3768 wrote to memory of 4284	3768	rundll32.exe	79
PID 3768 wrote to memory of 4284	3768	rundll32.exe	79
PID 4284 wrote to memory of 4460	4284	rundll32.exe	80
PID 4284 wrote to memory of 4460	4284	rundll32.exe	80
PID 4284 wrote to memory of 4460	4284	rundll32.exe	80

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\d30aa7aad0beb177a00f6af0946239b6.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3768
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\d30aa7aad0beb177a00f6af0946239b6.dll,#1
  2⤵
  - Drops file in Windows directory
  - Suspicious use of WriteProcessMemory
  PID:4284
- - C:\WINDOWS\mssecsvr.exe
    C:\WINDOWS\mssecsvr.exe
    3⤵
    - Executes dropped EXE
    - Drops file in Windows directory
    PID:4460

C:\WINDOWS\mssecsvr.exe
C:\WINDOWS\mssecsvr.exe -m security
1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:4624

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 0a6da0d644dc2e343c418abe052490abc54ea8ae8ed41db6e0842677425faab4
MD5 ab99254eb8ac5e75e056dade7d45966b
SHA1 0f6e413774e815b4cfe0fe03a975f6e52d250864
SHA512 32672194e66876dee6a3c269e4f7eb637bf0694069db432a88f631180d7da99725299bb9785ccc7c776f937ccdff644cd8525a5da0a6305d3d3f735868aa99e9
SSDEEP 24576:QbLguEQhfdmMSirYbcMNgef0QeQjG/D8kIqRY:QnUQqMSPbcBVQej/1
MD5 SHA1 SHA512 SSDEEP

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mssecsvr.exe

Path C:\Windows\mssecsvr.exe
Size 2.2MB
SHA256 0a6da0d644dc2e343c418abe052490abc54ea8ae8ed41db6e0842677425faab4
MD5 ab99254eb8ac5e75e056dade7d45966b
SHA1 0f6e413774e815b4cfe0fe03a975f6e52d250864
SHA512 32672194e66876dee6a3c269e4f7eb637bf0694069db432a88f631180d7da99725299bb9785ccc7c776f937ccdff644cd8525a5da0a6305d3d3f735868aa99e9
SSDEEP 24576:QbLguEQhfdmMSirYbcMNgef0QeQjG/D8kIqRY:QnUQqMSPbcBVQej/1
MD5 SHA1 SHA512 SSDEEP

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mssecsvr.exe

Path C:\Windows\mssecsvr.exe
Size 2.2MB
SHA256 0a6da0d644dc2e343c418abe052490abc54ea8ae8ed41db6e0842677425faab4
MD5 ab99254eb8ac5e75e056dade7d45966b
SHA1 0f6e413774e815b4cfe0fe03a975f6e52d250864
SHA512 32672194e66876dee6a3c269e4f7eb637bf0694069db432a88f631180d7da99725299bb9785ccc7c776f937ccdff644cd8525a5da0a6305d3d3f735868aa99e9
SSDEEP 24576:QbLguEQhfdmMSirYbcMNgef0QeQjG/D8kIqRY:QnUQqMSPbcBVQej/1
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