Malware Analysis Report

2025-08-10 22:11

Sample ID 231012-kdj9rsba98
Target proformaXfaturaXpdf.exe
SHA256 90f18e453ea2b0c1fa4d84d95499ab3bfd11db81a54caa2702cd3749f62c9dec
Tags
modiloader trojan formbook msev persistence rat spyware stealer
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

90f18e453ea2b0c1fa4d84d95499ab3bfd11db81a54caa2702cd3749f62c9dec

Threat Level: Known bad

The file proformaXfaturaXpdf.exe was found to be: Known bad.

Malicious Activity Summary

modiloader trojan formbook msev persistence rat spyware stealer

ModiLoader, DBatLoader

Formbook

Formbook payload

ModiLoader Second Stage

Adds Run key to start application

Suspicious use of SetThreadContext

Program crash

Unsigned PE

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Script User-Agent

Suspicious behavior: MapViewOfSection

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-10-12 08:29

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-10-12 08:29

Reported

2023-10-12 08:31

Platform

win7-20230831-en

Max time kernel

142s

Max time network

128s

Command Line

"C:\Users\Admin\AppData\Local\Temp\proformaXfaturaXpdf.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\proformaXfaturaXpdf.exe

"C:\Users\Admin\AppData\Local\Temp\proformaXfaturaXpdf.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2808 -s 708

Network

Country Destination Domain Proto
US 8.8.8.8:53 onedrive.live.com udp
US 13.107.42.13:443 onedrive.live.com tcp
US 13.107.42.13:443 onedrive.live.com tcp

Files

memory/2808-0-0x00000000003E0000-0x00000000003E1000-memory.dmp

memory/2808-1-0x0000000002E40000-0x0000000003E40000-memory.dmp

memory/2808-2-0x0000000002E40000-0x0000000003E40000-memory.dmp

memory/2808-4-0x0000000000400000-0x0000000000546000-memory.dmp

memory/2808-5-0x00000000003E0000-0x00000000003E1000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\CabAF35.tmp

MD5 f3441b8572aae8801c04f3060b550443
SHA1 4ef0a35436125d6821831ef36c28ffaf196cda15
SHA256 6720349e7d82ee0a8e73920d3c2b7cb2912d9fcf2edb6fd98f2f12820158b0bf
SHA512 5ba01ba421b50030e380ae6bbcd2f681f2a91947fe7fedb3c8e6b5f24dce9517abf57b1cf26cc6078d4bb53bde6fcfb2561591337c841f8f2cb121a3d71661b9

C:\Users\Admin\AppData\Local\Temp\TarAF67.tmp

MD5 9441737383d21192400eca82fda910ec
SHA1 725e0d606a4fc9ba44aa8ffde65bed15e65367e4
SHA256 bc3a6e84e41faeb57e7c21aa3b60c2a64777107009727c5b7c0ed8fe658909e5
SHA512 7608dd653a66cd364392a78d4711b48d1707768d36996e4d38871c6843b5714e1d7da4b4cc6db969e6000cfa182bcb74216ef6823d1063f036fc5c3413fb8dcf

Analysis: behavioral2

Detonation Overview

Submitted

2023-10-12 08:29

Reported

2023-10-12 08:33

Platform

win10v2004-20230915-en

Max time kernel

213s

Max time network

228s

Command Line

C:\Windows\Explorer.EXE

Signatures

Formbook

trojan spyware stealer formbook

ModiLoader, DBatLoader

trojan modiloader

Formbook payload

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

ModiLoader Second Stage

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

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-1045988481-1457812719-2617974652-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Nysswthm = "C:\\Users\\Public\\Nysswthm.url" C:\Users\Admin\AppData\Local\Temp\proformaXfaturaXpdf.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 3044 set thread context of 2548 N/A C:\Windows\SysWOW64\colorcpl.exe C:\Windows\Explorer.EXE
PID 1676 set thread context of 2548 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\Explorer.EXE

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

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\colorcpl.exe N/A
N/A N/A C:\Windows\SysWOW64\colorcpl.exe N/A
N/A N/A C:\Windows\SysWOW64\colorcpl.exe N/A
N/A N/A C:\Windows\SysWOW64\cmd.exe N/A
N/A N/A C:\Windows\SysWOW64\cmd.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\colorcpl.exe N/A
Token: SeShutdownPrivilege N/A C:\Windows\Explorer.EXE N/A
Token: SeCreatePagefilePrivilege N/A C:\Windows\Explorer.EXE N/A
Token: SeShutdownPrivilege N/A C:\Windows\Explorer.EXE N/A
Token: SeCreatePagefilePrivilege N/A C:\Windows\Explorer.EXE N/A
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\cmd.exe N/A
Token: SeShutdownPrivilege N/A C:\Windows\Explorer.EXE N/A
Token: SeCreatePagefilePrivilege N/A C:\Windows\Explorer.EXE N/A
Token: SeShutdownPrivilege N/A C:\Windows\Explorer.EXE N/A
Token: SeCreatePagefilePrivilege N/A C:\Windows\Explorer.EXE N/A

Processes

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Users\Admin\AppData\Local\Temp\proformaXfaturaXpdf.exe

"C:\Users\Admin\AppData\Local\Temp\proformaXfaturaXpdf.exe"

C:\Windows\SysWOW64\colorcpl.exe

C:\Windows\System32\colorcpl.exe

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\SysWOW64\cmd.exe"

C:\Windows\SysWOW64\cmd.exe

/c del "C:\Windows\SysWOW64\colorcpl.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 112.208.253.8.in-addr.arpa udp
US 8.8.8.8:53 158.240.127.40.in-addr.arpa udp
US 8.8.8.8:53 74.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.200:443 g.bing.com tcp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 254.109.26.67.in-addr.arpa udp
US 8.8.8.8:53 138.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 39.142.81.104.in-addr.arpa udp
US 8.8.8.8:53 onedrive.live.com udp
US 13.107.42.13:443 onedrive.live.com tcp
US 13.107.42.13:443 onedrive.live.com tcp
US 8.8.8.8:53 idf2jg.ph.files.1drv.com udp
US 13.107.42.12:443 idf2jg.ph.files.1drv.com tcp
US 8.8.8.8:53 13.42.107.13.in-addr.arpa udp
US 8.8.8.8:53 12.42.107.13.in-addr.arpa udp
US 8.8.8.8:53 11.173.189.20.in-addr.arpa udp
US 8.8.8.8:53 208.194.73.20.in-addr.arpa udp
US 8.8.8.8:53 2.136.104.51.in-addr.arpa udp
US 8.8.8.8:53 146.78.124.51.in-addr.arpa udp

Files

memory/1636-0-0x0000000000660000-0x0000000000661000-memory.dmp

memory/1636-1-0x0000000002970000-0x0000000003970000-memory.dmp

memory/1636-2-0x0000000002970000-0x0000000003970000-memory.dmp

memory/1636-4-0x0000000000400000-0x0000000000546000-memory.dmp

memory/1636-5-0x0000000000660000-0x0000000000661000-memory.dmp

memory/3044-17-0x0000000002530000-0x0000000003530000-memory.dmp

memory/3044-18-0x000000000E720000-0x000000000EA6A000-memory.dmp

memory/3044-20-0x0000000002530000-0x0000000003530000-memory.dmp

memory/2548-22-0x00000000088F0000-0x0000000008A35000-memory.dmp

memory/3044-21-0x000000000EDD0000-0x000000000EDE4000-memory.dmp

memory/1676-26-0x00000000009D0000-0x0000000000A2A000-memory.dmp

memory/1676-28-0x00000000009D0000-0x0000000000A2A000-memory.dmp

memory/1676-29-0x0000000001210000-0x000000000123F000-memory.dmp

memory/1676-30-0x0000000001C00000-0x0000000001F4A000-memory.dmp

memory/2548-32-0x00000000088F0000-0x0000000008A35000-memory.dmp

memory/1676-33-0x0000000001210000-0x000000000123F000-memory.dmp

memory/1676-35-0x0000000001940000-0x00000000019D3000-memory.dmp

memory/2548-36-0x0000000008A40000-0x0000000008BBE000-memory.dmp

memory/2548-37-0x0000000008A40000-0x0000000008BBE000-memory.dmp