wannacry | fd9678156070720f9b5b2f278968e1ee191e16837e1fb8d7ee8ebbc863af999d

Analysis

max time kernel
153s
max time network
157s
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, 02:18

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General

Target
e8647e4c2c99df4c98e295987a5af761.dll
Size 5.0MB
Sample220720-cracqaafg6
SHA256 fd9678156070720f9b5b2f278968e1ee191e16837e1fb8d7ee8ebbc863af999d
MD5 e8647e4c2c99df4c98e295987a5af761
SHA1 7f67ed1c7d8cf6d2c3f7712f1bc06886c4d73952
SHA512 f4346a06c0aa91cc21a855db50504badc27bb44980e7d50cea9d7d138ee89f198bcb8f652e259d9e38b21964e61bf65604f0d0bf9c9df6f2377d4fc07c8da463
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 (3062) 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
1376	mssecsvc.exe
4688	mssecsvc.exe
2272	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
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	mssecsvc.exe
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

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1688 wrote to memory of 4724	1688	rundll32.exe	82
PID 1688 wrote to memory of 4724	1688	rundll32.exe	82
PID 1688 wrote to memory of 4724	1688	rundll32.exe	82
PID 4724 wrote to memory of 1376	4724	rundll32.exe	83
PID 4724 wrote to memory of 1376	4724	rundll32.exe	83
PID 4724 wrote to memory of 1376	4724	rundll32.exe	83

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\e8647e4c2c99df4c98e295987a5af761.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1688
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\e8647e4c2c99df4c98e295987a5af761.dll,#1
  2⤵
  - Drops file in Windows directory
  - Suspicious use of WriteProcessMemory
  PID:4724
- - C:\WINDOWS\mssecsvc.exe
    C:\WINDOWS\mssecsvc.exe
    3⤵
    - Executes dropped EXE
    - Drops file in Windows directory
    PID:1376
  - - C:\WINDOWS\tasksche.exe
      C:\WINDOWS\tasksche.exe /i
      4⤵
      Executes dropped EXE
      PID:2272

C:\WINDOWS\mssecsvc.exe
C:\WINDOWS\mssecsvc.exe -m security
1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:4688

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 7b29dc75386c8736e1775a02b4867a6abac1e5faa0e9b012b94c47d814de14b1
MD5 3fc7110d15c7f66164238163eda75899
SHA1 47e02900d3599a43f19c0f92a7d599f38d3f36a4
SHA512 cf79441bdd6ecc39aff2ecb087e8f006c602f291a3d86535fefcbc2a8d31c9f819f7b3b76d3da4591b43afac2f8b34bbf7e3950946d5f73f78740cdb341f9a09
SSDEEP 24576:2bLgddQhfdmMSirYbcDrUy8ttOWPqrZRW6PaQE:2nAQqMSPbcPZ
MD5 SHA1 SHA512 SSDEEP

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mssecsvc.exe

Path C:\Windows\mssecsvc.exe
Size 3.6MB
SHA256 7b29dc75386c8736e1775a02b4867a6abac1e5faa0e9b012b94c47d814de14b1
MD5 3fc7110d15c7f66164238163eda75899
SHA1 47e02900d3599a43f19c0f92a7d599f38d3f36a4
SHA512 cf79441bdd6ecc39aff2ecb087e8f006c602f291a3d86535fefcbc2a8d31c9f819f7b3b76d3da4591b43afac2f8b34bbf7e3950946d5f73f78740cdb341f9a09
SSDEEP 24576:2bLgddQhfdmMSirYbcDrUy8ttOWPqrZRW6PaQE:2nAQqMSPbcPZ
MD5 SHA1 SHA512 SSDEEP

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mssecsvc.exe

Path C:\Windows\mssecsvc.exe
Size 3.6MB
SHA256 7b29dc75386c8736e1775a02b4867a6abac1e5faa0e9b012b94c47d814de14b1
MD5 3fc7110d15c7f66164238163eda75899
SHA1 47e02900d3599a43f19c0f92a7d599f38d3f36a4
SHA512 cf79441bdd6ecc39aff2ecb087e8f006c602f291a3d86535fefcbc2a8d31c9f819f7b3b76d3da4591b43afac2f8b34bbf7e3950946d5f73f78740cdb341f9a09
SSDEEP 24576:2bLgddQhfdmMSirYbcDrUy8ttOWPqrZRW6PaQE:2nAQqMSPbcPZ
MD5 SHA1 SHA512 SSDEEP

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tasksche.exe

Path C:\Windows\tasksche.exe
Size 3.4MB
SHA256 16791a4d3831f52822947efbf6fdfa62d8d361910d03662378cbcaad3910a242
MD5 4d4f1a9bfb1e6fc05431f5f0a2f7ccc2
SHA1 dc4a3f3739b20272613df423503256e3fab980fb
SHA512 721ad76f85ddcf1601ab7365c98514371eed29f86d6a698bc4b286f7055eff4fdfe5d5e2c4071559679e11996ba3c9807a9e0de79c74c50650d61208a966cce9
SSDEEP 24576:nQhfdmMSirYbcDrUy8ttOWPqrZRW6PaQE9:nQqMSPbcPZW
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