wannacry | ba3d0c4601a1f63f83237cd782d3e991380410a11ddea7b7a36ed5d6205f7ec2

Analysis

max time kernel
150s
max time network
156s
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, 07:24

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General

Target
038dac20c4c9f9f8ea101b45348b7c0f.dll
Size 5.0MB
Sample220720-h8ddladefq
SHA256 ba3d0c4601a1f63f83237cd782d3e991380410a11ddea7b7a36ed5d6205f7ec2
MD5 038dac20c4c9f9f8ea101b45348b7c0f
SHA1 71621491fccdedb382d195034629933774f97104
SHA512 eca5b872c1fc146d5e5d7ce27705758a6929a0ae67c247ba9e98bf67cdf359f97ba1c6b966d177805960e81963d6c9518e396ec152adb3893c887c56555da5df
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 (3297) 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
880	mssecsvc.exe
4324	mssecsvc.exe
4476	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 2140 wrote to memory of 5016	2140	rundll32.exe	81
PID 2140 wrote to memory of 5016	2140	rundll32.exe	81
PID 2140 wrote to memory of 5016	2140	rundll32.exe	81
PID 5016 wrote to memory of 880	5016	rundll32.exe	82
PID 5016 wrote to memory of 880	5016	rundll32.exe	82
PID 5016 wrote to memory of 880	5016	rundll32.exe	82

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\038dac20c4c9f9f8ea101b45348b7c0f.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2140
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\038dac20c4c9f9f8ea101b45348b7c0f.dll,#1
  2⤵
  - Drops file in Windows directory
  - Suspicious use of WriteProcessMemory
  PID:5016
- - C:\WINDOWS\mssecsvc.exe
    C:\WINDOWS\mssecsvc.exe
    3⤵
    - Executes dropped EXE
    - Drops file in Windows directory
    PID:880
  - - C:\WINDOWS\tasksche.exe
      C:\WINDOWS\tasksche.exe /i
      4⤵
      Executes dropped EXE
      PID:4476

C:\WINDOWS\mssecsvc.exe
C:\WINDOWS\mssecsvc.exe -m security
1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:4324

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 367715b4b36cf095b1efc42838fdb0590314ebb5eb0246be5dd218085bba439d
MD5 23c60ca2e5e5888b8826a5722c3ca159
SHA1 38268ce4226f0e7551dcd6c0e46bb3c5a97e6882
SHA512 2ca9e10b076e043789a66e708f50a54af412cf30aa86a1177adc03d220f3ef542ac06380b0083159aceba8e5ded683ade2dc89ca726b22c0011ddbf35789b6c4
SSDEEP 24576:2bLgddQhfdmMSirYbcMNgef0QeQjG/D8kIUt/8u1NZtA0p+9XEkI:2nAQqMSPbcBVQej/F31lAHI
MD5 SHA1 SHA512 SSDEEP

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mssecsvc.exe

Path C:\Windows\mssecsvc.exe
Size 3.6MB
SHA256 367715b4b36cf095b1efc42838fdb0590314ebb5eb0246be5dd218085bba439d
MD5 23c60ca2e5e5888b8826a5722c3ca159
SHA1 38268ce4226f0e7551dcd6c0e46bb3c5a97e6882
SHA512 2ca9e10b076e043789a66e708f50a54af412cf30aa86a1177adc03d220f3ef542ac06380b0083159aceba8e5ded683ade2dc89ca726b22c0011ddbf35789b6c4
SSDEEP 24576:2bLgddQhfdmMSirYbcMNgef0QeQjG/D8kIUt/8u1NZtA0p+9XEkI:2nAQqMSPbcBVQej/F31lAHI
MD5 SHA1 SHA512 SSDEEP

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mssecsvc.exe

Path C:\Windows\mssecsvc.exe
Size 3.6MB
SHA256 367715b4b36cf095b1efc42838fdb0590314ebb5eb0246be5dd218085bba439d
MD5 23c60ca2e5e5888b8826a5722c3ca159
SHA1 38268ce4226f0e7551dcd6c0e46bb3c5a97e6882
SHA512 2ca9e10b076e043789a66e708f50a54af412cf30aa86a1177adc03d220f3ef542ac06380b0083159aceba8e5ded683ade2dc89ca726b22c0011ddbf35789b6c4
SSDEEP 24576:2bLgddQhfdmMSirYbcMNgef0QeQjG/D8kIUt/8u1NZtA0p+9XEkI:2nAQqMSPbcBVQej/F31lAHI
MD5 SHA1 SHA512 SSDEEP

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tasksche.exe

Path C:\Windows\tasksche.exe
Size 3.4MB
SHA256 4ef7e8f6b0923965362af50ac57112843287f9181da3ab5e0e4b9524d61f31ce
MD5 737494f526495105bdb8d583e63e85ea
SHA1 8dc3ff284ec078b50ba2d830b4fd8337c1591490
SHA512 c389d54e4ce3c60751f2928b5b6cd4644dc51d9b15a73d5ff10b055054408ea7a325b9b5eb839f63a8c90d5aa8c32571f130e8aeb25ba163d2151eae4f08dbbb
SSDEEP 24576:nQhfdmMSirYbcMNgef0QeQjG/D8kIUt/8u1NZtA0p+9XEkj:nQqMSPbcBVQej/F31lAHj
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