Malware Analysis Report

2024-10-16 05:03

Sample ID 240811-f7etxsxalk
Target ZappyXyim.bat
SHA256 22cee64f347b6809c6d45d2aa28c88e02cece8f8ca3a6017b3c0341180fb4bfb
Tags
dropper execution
score
8/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
8/10

SHA256

22cee64f347b6809c6d45d2aa28c88e02cece8f8ca3a6017b3c0341180fb4bfb

Threat Level: Likely malicious

The file ZappyXyim.bat was found to be: Likely malicious.

Malicious Activity Summary

dropper execution

Blocklisted process makes network request

Command and Scripting Interpreter: PowerShell

Download via BitsAdmin

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-11 05:30

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-11 05:30

Reported

2024-08-11 05:48

Platform

win11-20240802-en

Max time kernel

440s

Max time network

441s

Command Line

C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\ZappyXyim.bat"

Signatures

Command and Scripting Interpreter: PowerShell

execution
Description Indicator Process Target
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

Download via BitsAdmin

dropper
Description Indicator Process Target
N/A N/A C:\Windows\system32\bitsadmin.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1492 wrote to memory of 876 N/A C:\Windows\system32\cmd.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 1492 wrote to memory of 876 N/A C:\Windows\system32\cmd.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 1492 wrote to memory of 1436 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\bitsadmin.exe
PID 1492 wrote to memory of 1436 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\bitsadmin.exe

Processes

C:\Windows\system32\cmd.exe

C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\ZappyXyim.bat"

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe

powershell -Command "try { Invoke-WebRequest -Uri 'https://github.com/git-for-windows/git/releases/latest/download/Git-2.41.0-64-bit.exe' -OutFile 'C:\Users\Admin\AppData\Local\Temp\GitSetup.exe' } catch { exit 1 }"

C:\Windows\system32\bitsadmin.exe

bitsadmin /transfer "GitDownloadJob" https://github.com/git-for-windows/git/releases/latest/download/Git-2.41.0-64-bit.exe C:\Users\Admin\AppData\Local\Temp\GitSetup.exe

Network

Country Destination Domain Proto
US 8.8.8.8:53 github.com udp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
GB 20.26.156.215:443 github.com tcp
US 185.199.108.154:443 github.githubassets.com tcp
US 185.199.108.154:443 github.githubassets.com tcp
US 8.8.8.8:53 23.159.190.20.in-addr.arpa udp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
GB 20.26.156.215:443 github.com tcp

Files

memory/876-0-0x00007FFF2A5F3000-0x00007FFF2A5F5000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_becrktrg.il4.ps1

MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

memory/876-9-0x00000231F0E90000-0x00000231F0EB2000-memory.dmp

memory/876-10-0x00007FFF2A5F0000-0x00007FFF2B0B2000-memory.dmp

memory/876-11-0x00007FFF2A5F0000-0x00007FFF2B0B2000-memory.dmp

memory/876-12-0x00007FFF2A5F0000-0x00007FFF2B0B2000-memory.dmp

memory/876-13-0x00000231F1B30000-0x00000231F22D6000-memory.dmp

memory/876-17-0x00007FFF2A5F0000-0x00007FFF2B0B2000-memory.dmp