Malware Analysis Report

2025-08-05 14:31

Sample ID 240204-zdqh4scbgn
Target 9018af484cddf39dd73bd87095602d52
SHA256 67398d52c60aeb43be4a9923d154d0347e7250299e13c786aae9dc3cf23af7b1
Tags
modiloader evasion persistence trojan upx
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

67398d52c60aeb43be4a9923d154d0347e7250299e13c786aae9dc3cf23af7b1

Threat Level: Known bad

The file 9018af484cddf39dd73bd87095602d52 was found to be: Known bad.

Malicious Activity Summary

modiloader evasion persistence trojan upx

ModiLoader, DBatLoader

UAC bypass

ModiLoader Second Stage

UPX packed file

Executes dropped EXE

Checks computer location settings

Loads dropped DLL

Adds Run key to start application

Checks whether UAC is enabled

Drops file in Windows directory

Enumerates physical storage devices

Unsigned PE

Suspicious use of SetWindowsHookEx

System policy modification

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-02-04 20:36

Signatures

UPX packed file

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

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-02-04 20:36

Reported

2024-02-04 20:38

Platform

win7-20231215-en

Max time kernel

145s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\9018af484cddf39dd73bd87095602d52.exe"

Signatures

ModiLoader, DBatLoader

trojan modiloader

UAC bypass

evasion trojan
Description Indicator Process Target
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" C:\Windows\mstwain32.exe N/A

ModiLoader Second Stage

Description Indicator Process Target
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Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Windows\mstwain32.exe N/A

UPX packed file

upx
Description Indicator Process Target
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Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000\Software\Microsoft\Windows\CurrentVersion\Run\mstwain32 = "C:\\Windows\\mstwain32.exe" C:\Windows\mstwain32.exe N/A

Checks whether UAC is enabled

evasion trojan
Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA C:\Users\Admin\AppData\Local\Temp\9018af484cddf39dd73bd87095602d52.exe N/A
Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA C:\Windows\mstwain32.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" C:\Windows\mstwain32.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\ntdtcstp.dll C:\Windows\mstwain32.exe N/A
File created C:\Windows\cmsetac.dll C:\Windows\mstwain32.exe N/A
File created C:\Windows\mstwain32.exe C:\Users\Admin\AppData\Local\Temp\9018af484cddf39dd73bd87095602d52.exe N/A
File opened for modification C:\Windows\mstwain32.exe C:\Users\Admin\AppData\Local\Temp\9018af484cddf39dd73bd87095602d52.exe N/A

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\9018af484cddf39dd73bd87095602d52.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\mstwain32.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\mstwain32.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Windows\mstwain32.exe N/A
N/A N/A C:\Windows\mstwain32.exe N/A

System policy modification

evasion
Description Indicator Process Target
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" C:\Windows\mstwain32.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\9018af484cddf39dd73bd87095602d52.exe

"C:\Users\Admin\AppData\Local\Temp\9018af484cddf39dd73bd87095602d52.exe"

C:\Windows\mstwain32.exe

"C:\Windows\mstwain32.exe"

Network

Country Destination Domain Proto
BR 187.16.244.243:15963 tcp
BR 187.16.244.243:15963 tcp
BR 187.16.244.243:15963 tcp
BR 187.16.244.243:15963 tcp
BR 187.16.244.243:15963 tcp
BR 187.16.244.243:15963 tcp
BR 187.16.244.243:15963 tcp
BR 187.16.244.243:15963 tcp
BR 187.16.244.243:15963 tcp
BR 187.16.244.243:15963 tcp
BR 187.16.244.243:15963 tcp
BR 187.16.244.243:15963 tcp
BR 187.16.244.243:15963 tcp
BR 187.16.244.243:15963 tcp
BR 187.16.244.243:15963 tcp
BR 187.16.244.243:15963 tcp
BR 187.16.244.243:15963 tcp
BR 187.16.244.243:15963 tcp
BR 187.16.244.243:15963 tcp
BR 187.16.244.243:15963 tcp
BR 187.16.244.243:15963 tcp
BR 187.16.244.243:15963 tcp
BR 187.16.244.243:15963 tcp
BR 187.16.244.243:15963 tcp
BR 187.16.244.243:15963 tcp
BR 187.16.244.243:15963 tcp
BR 187.16.244.243:15963 tcp
BR 187.16.244.243:15963 tcp
BR 187.16.244.243:15963 tcp
BR 187.16.244.243:15963 tcp

Files

memory/1752-0-0x0000000000400000-0x0000000000450000-memory.dmp

C:\Windows\mstwain32.exe

MD5 9018af484cddf39dd73bd87095602d52
SHA1 dea4559ee290fe3371a4ced25e7d3fd0c8c7f34b
SHA256 67398d52c60aeb43be4a9923d154d0347e7250299e13c786aae9dc3cf23af7b1
SHA512 230ea827ded8af9fb394acfc49b071a2179ea3cdbe0cef932009c530947b77ecf4097464b9790d421568ef28374e2d23a1fb72a0a75a339ad7f1083b3ecb6b22

memory/1752-10-0x0000000002B30000-0x0000000002B80000-memory.dmp

memory/1752-8-0x0000000000400000-0x0000000000450000-memory.dmp

memory/1752-7-0x00000000003E0000-0x00000000003F0000-memory.dmp

memory/1876-11-0x0000000000400000-0x0000000000450000-memory.dmp

memory/1876-15-0x00000000003E0000-0x00000000003E1000-memory.dmp

memory/1876-16-0x00000000025F0000-0x00000000025FE000-memory.dmp

memory/1876-18-0x0000000076330000-0x0000000076420000-memory.dmp

memory/1876-19-0x0000000074A40000-0x0000000074A54000-memory.dmp

memory/1876-20-0x0000000002420000-0x0000000002421000-memory.dmp

memory/1876-21-0x0000000000400000-0x0000000000450000-memory.dmp

memory/1876-22-0x0000000000400000-0x0000000000450000-memory.dmp

memory/1876-23-0x0000000000400000-0x0000000000450000-memory.dmp

memory/1876-24-0x0000000000400000-0x0000000000450000-memory.dmp

memory/1876-25-0x0000000000400000-0x0000000000450000-memory.dmp

memory/1876-26-0x0000000000400000-0x0000000000450000-memory.dmp

memory/1876-27-0x0000000000400000-0x0000000000450000-memory.dmp

memory/1876-28-0x0000000000400000-0x0000000000450000-memory.dmp

memory/1876-29-0x0000000000400000-0x0000000000450000-memory.dmp

memory/1876-30-0x0000000000400000-0x0000000000450000-memory.dmp

memory/1876-31-0x0000000000400000-0x0000000000450000-memory.dmp

memory/1876-32-0x0000000000400000-0x0000000000450000-memory.dmp

memory/1876-33-0x0000000000400000-0x0000000000450000-memory.dmp

memory/1876-34-0x0000000000400000-0x0000000000450000-memory.dmp

memory/1876-35-0x0000000000400000-0x0000000000450000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-02-04 20:36

Reported

2024-02-04 20:39

Platform

win10v2004-20231215-en

Max time kernel

148s

Max time network

155s

Command Line

"C:\Users\Admin\AppData\Local\Temp\9018af484cddf39dd73bd87095602d52.exe"

Signatures

ModiLoader, DBatLoader

trojan modiloader

UAC bypass

evasion trojan
Description Indicator Process Target
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" C:\Windows\mstwain32.exe N/A

ModiLoader Second Stage

Description Indicator Process Target
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Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\9018af484cddf39dd73bd87095602d52.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Windows\mstwain32.exe N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Windows\mstwain32.exe N/A
N/A N/A C:\Windows\mstwain32.exe N/A
N/A N/A C:\Windows\mstwain32.exe N/A
N/A N/A C:\Windows\mstwain32.exe N/A

UPX packed file

upx
Description Indicator Process Target
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Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mstwain32 = "C:\\Windows\\mstwain32.exe" C:\Windows\mstwain32.exe N/A

Checks whether UAC is enabled

evasion trojan
Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA C:\Users\Admin\AppData\Local\Temp\9018af484cddf39dd73bd87095602d52.exe N/A
Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA C:\Windows\mstwain32.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" C:\Windows\mstwain32.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File opened for modification C:\Windows\mstwain32.exe C:\Users\Admin\AppData\Local\Temp\9018af484cddf39dd73bd87095602d52.exe N/A
File created C:\Windows\ntdtcstp.dll C:\Windows\mstwain32.exe N/A
File created C:\Windows\cmsetac.dll C:\Windows\mstwain32.exe N/A
File created C:\Windows\mstwain32.exe C:\Users\Admin\AppData\Local\Temp\9018af484cddf39dd73bd87095602d52.exe N/A

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\9018af484cddf39dd73bd87095602d52.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\mstwain32.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\mstwain32.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Windows\mstwain32.exe N/A
N/A N/A C:\Windows\mstwain32.exe N/A

System policy modification

evasion
Description Indicator Process Target
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" C:\Windows\mstwain32.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\9018af484cddf39dd73bd87095602d52.exe

"C:\Users\Admin\AppData\Local\Temp\9018af484cddf39dd73bd87095602d52.exe"

C:\Windows\mstwain32.exe

"C:\Windows\mstwain32.exe"

Network

Country Destination Domain Proto
US 138.91.171.81:80 tcp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
BR 187.16.244.243:15963 tcp
US 8.8.8.8:53 180.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 2.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
BR 187.16.244.243:15963 tcp
US 8.8.8.8:53 79.121.231.20.in-addr.arpa udp
BR 187.16.244.243:15963 tcp
BR 187.16.244.243:15963 tcp
BR 187.16.244.243:15963 tcp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
BR 187.16.244.243:15963 tcp
US 8.8.8.8:53 23.160.77.104.in-addr.arpa udp
BR 187.16.244.243:15963 tcp
BR 187.16.244.243:15963 tcp
US 8.8.8.8:53 150.1.37.23.in-addr.arpa udp
BR 187.16.244.243:15963 tcp
BR 187.16.244.243:15963 tcp
BR 187.16.244.243:15963 tcp
BR 187.16.244.243:15963 tcp
BR 187.16.244.243:15963 tcp
US 8.8.8.8:53 200.178.17.96.in-addr.arpa udp
BR 187.16.244.243:15963 tcp
BR 187.16.244.243:15963 tcp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp
BR 187.16.244.243:15963 tcp
BR 187.16.244.243:15963 tcp
BR 187.16.244.243:15963 tcp
BR 187.16.244.243:15963 tcp
BR 187.16.244.243:15963 tcp
BR 187.16.244.243:15963 tcp
BR 187.16.244.243:15963 tcp
BR 187.16.244.243:15963 tcp
BR 187.16.244.243:15963 tcp
BR 187.16.244.243:15963 tcp
BR 187.16.244.243:15963 tcp
BR 187.16.244.243:15963 tcp
US 8.8.8.8:53 27.73.42.20.in-addr.arpa udp
BR 187.16.244.243:15963 tcp
BR 187.16.244.243:15963 tcp

Files

memory/5064-0-0x0000000000400000-0x0000000000450000-memory.dmp

C:\Windows\mstwain32.exe

MD5 9018af484cddf39dd73bd87095602d52
SHA1 dea4559ee290fe3371a4ced25e7d3fd0c8c7f34b
SHA256 67398d52c60aeb43be4a9923d154d0347e7250299e13c786aae9dc3cf23af7b1
SHA512 230ea827ded8af9fb394acfc49b071a2179ea3cdbe0cef932009c530947b77ecf4097464b9790d421568ef28374e2d23a1fb72a0a75a339ad7f1083b3ecb6b22

memory/5064-11-0x0000000000400000-0x0000000000450000-memory.dmp

C:\Windows\ntdtcstp.dll

MD5 67587e25a971a141628d7f07bd40ffa0
SHA1 76fcd014539a3bb247cc0b761225f68bd6055f6b
SHA256 e6829866322d68d5c5b78e3d48dcec70a41cdc42c6f357a44fd329f74a8b4378
SHA512 6e6de7aa02c48f8b96b06e5f1160fbc5c95312320636e138cc997ef3362a61bc50ec03db1f06292eb964cd71915ddb2ec2eb741432c7da44215a4acbb576a350

memory/876-17-0x0000000000920000-0x0000000000921000-memory.dmp

C:\Windows\cmsetac.dll

MD5 965df136f0cea9286441f242d3e36624
SHA1 688ff39d76aaa43cdd44aab17ebf16a764648ad1
SHA256 72bef3c45889a83ef384ddc171f4d47f994042bd8380109c6ef3bb7f7263050a
SHA512 a19387c4501457fddd84129414054c78d01ffed5342f7bcfc90cfaf2e966aaac0b2124a2b6e23cd03c58f76e8b1bd1ed38d9cc08eff7d9fa6ee56252a8f51205

memory/876-21-0x00000000022A0000-0x00000000022AE000-memory.dmp

memory/876-24-0x0000000002250000-0x0000000002251000-memory.dmp

memory/876-25-0x0000000000400000-0x0000000000450000-memory.dmp

memory/876-26-0x0000000000970000-0x0000000000978000-memory.dmp

memory/876-27-0x00000000022A0000-0x00000000022AE000-memory.dmp

memory/876-28-0x0000000000400000-0x0000000000450000-memory.dmp

memory/876-31-0x0000000000400000-0x0000000000450000-memory.dmp

memory/876-32-0x0000000000400000-0x0000000000450000-memory.dmp

memory/876-35-0x0000000000400000-0x0000000000450000-memory.dmp

memory/876-38-0x0000000000400000-0x0000000000450000-memory.dmp

memory/876-41-0x0000000000400000-0x0000000000450000-memory.dmp

memory/876-44-0x0000000000400000-0x0000000000450000-memory.dmp

memory/876-47-0x0000000000400000-0x0000000000450000-memory.dmp

memory/876-50-0x0000000000400000-0x0000000000450000-memory.dmp

memory/876-53-0x0000000000400000-0x0000000000450000-memory.dmp

memory/876-56-0x0000000000400000-0x0000000000450000-memory.dmp

memory/876-59-0x0000000000400000-0x0000000000450000-memory.dmp

memory/876-62-0x0000000000400000-0x0000000000450000-memory.dmp

memory/876-65-0x0000000000400000-0x0000000000450000-memory.dmp