Malware Analysis Report

2024-11-15 09:09

Sample ID 200704-6ywwgwccbj
Target SecuriteInfo.com.Variant.Johnnie.260029.31647.5696
SHA256 fd44086fe5fd433c14f4fc1e03f318353add50ac77dee6da3f64c4d2c5414c1c
Tags
valak Loader
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

fd44086fe5fd433c14f4fc1e03f318353add50ac77dee6da3f64c4d2c5414c1c

Threat Level: Known bad

The file SecuriteInfo.com.Variant.Johnnie.260029.31647.5696 was found to be: Known bad.

Malicious Activity Summary

valak Loader

Valak

Valak JavaScript Loader

JavaScript code in executable

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2020-07-04 08:42

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2020-07-04 08:42

Reported

2020-07-04 08:44

Platform

win7

Max time kernel

63s

Max time network

64s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Variant.Johnnie.260029.31647.5696.dll,#1

Signatures

Valak

Loader valak

Valak JavaScript Loader

Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A

JavaScript code in executable

Description Indicator Process Target
N/A N/A N/A N/A

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Variant.Johnnie.260029.31647.5696.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Variant.Johnnie.260029.31647.5696.dll,#1

C:\Windows\SysWOW64\wscript.exe

wscript.exe //E:jscript "C:\Users\Public\zNrFlsljF.h_uKX

C:\Windows\system32\wbem\WmiApSrv.exe

C:\Windows\system32\wbem\WmiApSrv.exe

Network

N/A

Files

memory/1184-0-0x0000000000000000-mapping.dmp

memory/1416-1-0x0000000000000000-mapping.dmp

C:\Users\Public\zNrFlsljF.h_uKX

MD5 165f495f44662a65cb38e9e8edf2586c
SHA1 6fcced879570b3ea31f57298a6fc149c3080c9d7
SHA256 ea159717f2033df8a9a16db45bad250346296ed188ffc735abd3ff463b710589
SHA512 039dc55aab10a883d22c5363b85ef76f4b657a6bad10ee28484644a619e31a5bc01e91e29362ebba1b121e0aba3d3a953897b7caa72b1539eacd217de8d629ae

memory/1416-3-0x0000000002650000-0x0000000002654000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2020-07-04 08:42

Reported

2020-07-04 08:44

Platform

win10v200430

Max time kernel

131s

Max time network

43s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Variant.Johnnie.260029.31647.5696.dll,#1

Signatures

Valak

Loader valak

Valak JavaScript Loader

Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A

JavaScript code in executable

Description Indicator Process Target
N/A N/A N/A N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3176 wrote to memory of 1132 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3176 wrote to memory of 1132 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3176 wrote to memory of 1132 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1132 wrote to memory of 2124 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\wscript.exe
PID 1132 wrote to memory of 2124 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\wscript.exe
PID 1132 wrote to memory of 2124 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\wscript.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Variant.Johnnie.260029.31647.5696.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Variant.Johnnie.260029.31647.5696.dll,#1

C:\Windows\SysWOW64\wscript.exe

wscript.exe //E:jscript "C:\Users\Public\zNrFlsljF.h_uKX

C:\Windows\system32\wbem\WmiApSrv.exe

C:\Windows\system32\wbem\WmiApSrv.exe

Network

N/A

Files

memory/1132-0-0x0000000000000000-mapping.dmp

memory/2124-1-0x0000000000000000-mapping.dmp

C:\Users\Public\zNrFlsljF.h_uKX

MD5 165f495f44662a65cb38e9e8edf2586c
SHA1 6fcced879570b3ea31f57298a6fc149c3080c9d7
SHA256 ea159717f2033df8a9a16db45bad250346296ed188ffc735abd3ff463b710589
SHA512 039dc55aab10a883d22c5363b85ef76f4b657a6bad10ee28484644a619e31a5bc01e91e29362ebba1b121e0aba3d3a953897b7caa72b1539eacd217de8d629ae