Malware Analysis Report

2025-06-16 05:49

Sample ID 240326-hsrlaagf2y
Target Yeni sifaris siyahisi.exe
SHA256 1c60bc833a05be736fd6734552cf56281db65a3cb0c8004b3f94d88cf6c31a84
Tags
modiloader trojan persistence
score
10/10

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: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

1c60bc833a05be736fd6734552cf56281db65a3cb0c8004b3f94d88cf6c31a84

Threat Level: Known bad

The file Yeni sifaris siyahisi.exe was found to be: Known bad.

Malicious Activity Summary

modiloader trojan persistence

ModiLoader, DBatLoader

ModiLoader Second Stage

Executes dropped EXE

Adds Run key to start application

Drops file in System32 directory

Program crash

Unsigned PE

Suspicious use of WriteProcessMemory

Modifies registry class

Script User-Agent

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-03-26 07:00

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-03-26 07:00

Reported

2024-03-26 07:02

Platform

win7-20240220-en

Max time kernel

140s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\Yeni sifaris siyahisi.exe"

Signatures

ModiLoader, DBatLoader

trojan modiloader

ModiLoader Second Stage

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

Processes

C:\Users\Admin\AppData\Local\Temp\Yeni sifaris siyahisi.exe

"C:\Users\Admin\AppData\Local\Temp\Yeni sifaris siyahisi.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1744 -s 812

Network

Country Destination Domain Proto
US 8.8.8.8:53 onedrive.live.com udp
US 13.107.137.11:443 onedrive.live.com tcp
US 13.107.137.11:443 onedrive.live.com tcp

Files

memory/1744-0-0x0000000000230000-0x0000000000231000-memory.dmp

memory/1744-1-0x0000000003270000-0x0000000004270000-memory.dmp

memory/1744-2-0x0000000003270000-0x0000000004270000-memory.dmp

memory/1744-4-0x0000000000230000-0x0000000000231000-memory.dmp

memory/1744-5-0x0000000000400000-0x0000000000527000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-03-26 07:00

Reported

2024-03-26 07:02

Platform

win10v2004-20240226-en

Max time kernel

146s

Max time network

154s

Command Line

"C:\Users\Admin\AppData\Local\Temp\Yeni sifaris siyahisi.exe"

Signatures

ModiLoader, DBatLoader

trojan modiloader

ModiLoader Second Stage

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

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\skype\sjype.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Xdchywvk = "C:\\Users\\Public\\Xdchywvk.url" C:\Users\Admin\AppData\Local\Temp\Yeni sifaris siyahisi.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Rmc-H3YHZ8 = "\"C:\\Windows\\SysWOW64\\skype\\sjype.exe\"" C:\Windows\SysWOW64\SndVol.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Rmc-H3YHZ8 = "\"C:\\Windows\\SysWOW64\\skype\\sjype.exe\"" C:\Windows\SysWOW64\SndVol.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\skype\sjype.exe C:\Windows\SysWOW64\SndVol.exe N/A
File opened for modification C:\Windows\SysWOW64\skype\sjype.exe C:\Windows\SysWOW64\SndVol.exe N/A
File opened for modification C:\Windows\SysWOW64\skype C:\Windows\SysWOW64\SndVol.exe N/A

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\ C:\Windows\SysWOW64\SndVol.exe N/A

Script User-Agent

Description Indicator Process Target
HTTP User-Agent header Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) N/A N/A
HTTP User-Agent header Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) N/A N/A

Processes

C:\Users\Admin\AppData\Local\Temp\Yeni sifaris siyahisi.exe

"C:\Users\Admin\AppData\Local\Temp\Yeni sifaris siyahisi.exe"

C:\Windows\SysWOW64\extrac32.exe

C:\\Windows\\System32\\extrac32.exe /C /Y C:\Users\Admin\AppData\Local\Temp\Yeni sifaris siyahisi.exe C:\\Users\\Public\\Libraries\\Xdchywvk.PIF

C:\Windows\SysWOW64\SndVol.exe

C:\Windows\System32\SndVol.exe

C:\Windows\SysWOW64\skype\sjype.exe

"C:\Windows\SysWOW64\skype\sjype.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 17.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 onedrive.live.com udp
US 13.107.137.11:443 onedrive.live.com tcp
US 13.107.137.11:443 onedrive.live.com tcp
US 8.8.8.8:53 11.137.107.13.in-addr.arpa udp
US 8.8.8.8:53 naprww.bn.files.1drv.com udp
US 13.107.42.12:443 naprww.bn.files.1drv.com tcp
US 13.107.137.11:443 onedrive.live.com tcp
US 8.8.8.8:53 12.42.107.13.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 58.99.105.20.in-addr.arpa udp
US 8.8.8.8:53 180.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 13.173.189.20.in-addr.arpa udp

Files

memory/1920-0-0x0000000000800000-0x0000000000801000-memory.dmp

memory/1920-1-0x0000000003FE0000-0x0000000004FE0000-memory.dmp

memory/1920-2-0x0000000003FE0000-0x0000000004FE0000-memory.dmp

memory/1920-4-0x0000000000400000-0x0000000000527000-memory.dmp

C:\Windows\SysWOW64\skype\sjype.exe

MD5 5ac83d3d18f9b6e1c5b78bd712661524
SHA1 9ee22c8038e47a4935aeac113d3f2ee6f03a22c4
SHA256 d68ddc4be84705357288ba972939aa9aa5f95537ebc059c3ff3ccaae11638fca
SHA512 2fc37b27836a4f0a4c61a5cd976e7452120585b86a615cce25108737337a9a02b73cc68c92b26fbb89a5cadbf3033ad0b6355cc5b7094f18318e3dbea1b84082