modiloader | a21979b47a2dc05af1585e8fb666b4a99fa806ae2cb52d89ff51c9dab4904a6c

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
28-12-2023 21:11

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General

Target

f86bb9515fc4cc9de72e6c4f49ff1b8a.exe
Size

338KB
MD5

f86bb9515fc4cc9de72e6c4f49ff1b8a
SHA1

3b4c632f59d426f92f992d74401197808105be0e
SHA256

a21979b47a2dc05af1585e8fb666b4a99fa806ae2cb52d89ff51c9dab4904a6c
SHA512

9be55f2a89c57c3d7d949902ccf97268a1a6381f54d21b24a8c794d28946218e32ab0938961ffaef81e7b25b4e47c7e625f84b31565f420cee5c7052c43ec3f6
SSDEEP

6144:23mw1VgIlsB9E4G6/SBCUuUnelyc+XTP9o9+e1V2esHp7kQe:wlsB9E4GCSBCUuUnelyc+Xy+3esHNq

Score

10^/10

modiloader evasion persistence trojan

Malware Config

Signatures

ModiLoader, DBatLoader
ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.
trojan modiloader

UAC bypass 3 TTPs 1 IoCs

evasion trojan

Bypass User Account Control

T1548.002

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	mstwain32.exe

ModiLoader Second Stage 23 IoCs

resource	yara_rule
behavioral2/memory/4992-3-0x0000000000400000-0x0000000000444000-memory.dmp	modiloader_stage2
behavioral2/memory/4992-4-0x0000000000400000-0x0000000000444000-memory.dmp	modiloader_stage2
behavioral2/memory/4992-5-0x0000000000400000-0x0000000000444000-memory.dmp	modiloader_stage2
behavioral2/memory/4992-2-0x0000000000400000-0x0000000000444000-memory.dmp	modiloader_stage2
behavioral2/memory/4992-14-0x0000000000400000-0x0000000000444000-memory.dmp	modiloader_stage2
behavioral2/memory/212-22-0x0000000000400000-0x0000000000444000-memory.dmp	modiloader_stage2
behavioral2/memory/212-23-0x0000000000400000-0x0000000000444000-memory.dmp	modiloader_stage2
behavioral2/memory/212-21-0x0000000000400000-0x0000000000444000-memory.dmp	modiloader_stage2
behavioral2/memory/212-36-0x0000000000400000-0x0000000000444000-memory.dmp	modiloader_stage2
behavioral2/memory/212-37-0x0000000000400000-0x0000000000444000-memory.dmp	modiloader_stage2
behavioral2/memory/212-38-0x0000000000400000-0x0000000000444000-memory.dmp	modiloader_stage2
behavioral2/memory/212-39-0x0000000000400000-0x0000000000444000-memory.dmp	modiloader_stage2
behavioral2/memory/212-40-0x0000000000400000-0x0000000000444000-memory.dmp	modiloader_stage2
behavioral2/memory/212-41-0x0000000000400000-0x0000000000444000-memory.dmp	modiloader_stage2
behavioral2/memory/212-42-0x0000000000400000-0x0000000000444000-memory.dmp	modiloader_stage2
behavioral2/memory/212-43-0x0000000000400000-0x0000000000444000-memory.dmp	modiloader_stage2
behavioral2/memory/212-44-0x0000000000400000-0x0000000000444000-memory.dmp	modiloader_stage2
behavioral2/memory/212-45-0x0000000000400000-0x0000000000444000-memory.dmp	modiloader_stage2
behavioral2/memory/212-46-0x0000000000400000-0x0000000000444000-memory.dmp	modiloader_stage2
behavioral2/memory/212-47-0x0000000000400000-0x0000000000444000-memory.dmp	modiloader_stage2
behavioral2/memory/212-48-0x0000000000400000-0x0000000000444000-memory.dmp	modiloader_stage2
behavioral2/memory/212-49-0x0000000000400000-0x0000000000444000-memory.dmp	modiloader_stage2
behavioral2/memory/212-50-0x0000000000400000-0x0000000000444000-memory.dmp	modiloader_stage2

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\Control Panel\International\Geo\Nation	f86bb9515fc4cc9de72e6c4f49ff1b8a.exe

Executes dropped EXE 2 IoCs

pid	Process
3808	mstwain32.exe
212	mstwain32.exe

Loads dropped DLL 2 IoCs

pid	Process
212	mstwain32.exe
212	mstwain32.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mstwain32 = "C:\\Windows\\mstwain32.exe"	mstwain32.exe

Checks whether UAC is enabled 1 TTPs 3 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	f86bb9515fc4cc9de72e6c4f49ff1b8a.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	mstwain32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	mstwain32.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 3836 set thread context of 4992	3836	f86bb9515fc4cc9de72e6c4f49ff1b8a.exe	77
PID 3808 set thread context of 212	3808	mstwain32.exe	81

Drops file in Windows directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\mstwain32.exe	f86bb9515fc4cc9de72e6c4f49ff1b8a.exe
File opened for modification	C:\Windows\mstwain32.exe	mstwain32.exe
File created	C:\Windows\ntdtcstp.dll	mstwain32.exe
File created	C:\Windows\mstwain32.exe	f86bb9515fc4cc9de72e6c4f49ff1b8a.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4992	f86bb9515fc4cc9de72e6c4f49ff1b8a.exe
Token: SeDebugPrivilege	212	mstwain32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
3836	f86bb9515fc4cc9de72e6c4f49ff1b8a.exe
3808	mstwain32.exe
212	mstwain32.exe

Suspicious use of WriteProcessMemory 29 IoCs

description	pid	Process	procid_target
PID 3836 wrote to memory of 4992	3836	f86bb9515fc4cc9de72e6c4f49ff1b8a.exe	77
PID 3836 wrote to memory of 4992	3836	f86bb9515fc4cc9de72e6c4f49ff1b8a.exe	77
PID 3836 wrote to memory of 4992	3836	f86bb9515fc4cc9de72e6c4f49ff1b8a.exe	77
PID 3836 wrote to memory of 4992	3836	f86bb9515fc4cc9de72e6c4f49ff1b8a.exe	77
PID 3836 wrote to memory of 4992	3836	f86bb9515fc4cc9de72e6c4f49ff1b8a.exe	77
PID 3836 wrote to memory of 4992	3836	f86bb9515fc4cc9de72e6c4f49ff1b8a.exe	77
PID 3836 wrote to memory of 4992	3836	f86bb9515fc4cc9de72e6c4f49ff1b8a.exe	77
PID 3836 wrote to memory of 4992	3836	f86bb9515fc4cc9de72e6c4f49ff1b8a.exe	77
PID 3836 wrote to memory of 4992	3836	f86bb9515fc4cc9de72e6c4f49ff1b8a.exe	77
PID 3836 wrote to memory of 4992	3836	f86bb9515fc4cc9de72e6c4f49ff1b8a.exe	77
PID 3836 wrote to memory of 4992	3836	f86bb9515fc4cc9de72e6c4f49ff1b8a.exe	77
PID 3836 wrote to memory of 4992	3836	f86bb9515fc4cc9de72e6c4f49ff1b8a.exe	77
PID 3836 wrote to memory of 4992	3836	f86bb9515fc4cc9de72e6c4f49ff1b8a.exe	77
PID 4992 wrote to memory of 3808	4992	f86bb9515fc4cc9de72e6c4f49ff1b8a.exe	82
PID 4992 wrote to memory of 3808	4992	f86bb9515fc4cc9de72e6c4f49ff1b8a.exe	82
PID 4992 wrote to memory of 3808	4992	f86bb9515fc4cc9de72e6c4f49ff1b8a.exe	82
PID 3808 wrote to memory of 212	3808	mstwain32.exe	81
PID 3808 wrote to memory of 212	3808	mstwain32.exe	81
PID 3808 wrote to memory of 212	3808	mstwain32.exe	81
PID 3808 wrote to memory of 212	3808	mstwain32.exe	81
PID 3808 wrote to memory of 212	3808	mstwain32.exe	81
PID 3808 wrote to memory of 212	3808	mstwain32.exe	81
PID 3808 wrote to memory of 212	3808	mstwain32.exe	81
PID 3808 wrote to memory of 212	3808	mstwain32.exe	81
PID 3808 wrote to memory of 212	3808	mstwain32.exe	81
PID 3808 wrote to memory of 212	3808	mstwain32.exe	81
PID 3808 wrote to memory of 212	3808	mstwain32.exe	81
PID 3808 wrote to memory of 212	3808	mstwain32.exe	81
PID 3808 wrote to memory of 212	3808	mstwain32.exe	81

System policy modification 1 TTPs 1 IoCs

evasion

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	mstwain32.exe

C:\Users\Admin\AppData\Local\Temp\f86bb9515fc4cc9de72e6c4f49ff1b8a.exe
"C:\Users\Admin\AppData\Local\Temp\f86bb9515fc4cc9de72e6c4f49ff1b8a.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3836
- C:\Users\Admin\AppData\Local\Temp\f86bb9515fc4cc9de72e6c4f49ff1b8a.exe
  2⤵
  - Checks computer location settings
  - Checks whether UAC is enabled
  - Drops file in Windows directory
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4992
- - C:\Windows\mstwain32.exe
    "C:\Windows\mstwain32.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Drops file in Windows directory
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:3808

C:\Windows\mstwain32.exe
1⤵
- UAC bypass
- Executes dropped EXE
- Loads dropped DLL
- Adds Run key to start application
- Checks whether UAC is enabled
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- System policy modification
PID:212

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Impair Defenses

T1562

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\mstwain32.exe

Filesize
338KB

MD5
f86bb9515fc4cc9de72e6c4f49ff1b8a

SHA1
3b4c632f59d426f92f992d74401197808105be0e

SHA256
a21979b47a2dc05af1585e8fb666b4a99fa806ae2cb52d89ff51c9dab4904a6c

SHA512
9be55f2a89c57c3d7d949902ccf97268a1a6381f54d21b24a8c794d28946218e32ab0938961ffaef81e7b25b4e47c7e625f84b31565f420cee5c7052c43ec3f6

Download Submit
C:\Windows\ntdtcstp.dll

Filesize
11KB

MD5
196221b916e29ff0eec2efcd33c52eac

SHA1
16f8665beb6fe2cf954153250c39ae90d5cbdaaa

SHA256
2f88a767f47fff8fa5f97b59930c175f82fc0f176dee0bfc920057bebfc99211

SHA512
8ce80e47f4b7426db7b1079c48088e11a75f613ec25cc99efe50b8d32db930d2fae5c859342b7ec481206e5ada52ee2b05a2b8c6ec38917dd3127bdce1843a12

Download Submit
memory/212-23-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/212-33-0x0000000002140000-0x0000000002145000-memory.dmp

Filesize
20KB

Download
memory/212-36-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/212-50-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/212-37-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/212-34-0x0000000000610000-0x0000000000611000-memory.dmp

Filesize
4KB

Download
memory/212-32-0x0000000002180000-0x0000000002181000-memory.dmp

Filesize
4KB

Download
memory/212-31-0x0000000002190000-0x0000000002191000-memory.dmp

Filesize
4KB

Download
memory/212-30-0x0000000002120000-0x0000000002130000-memory.dmp

Filesize
64KB

Download
memory/212-49-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/212-35-0x0000000003150000-0x0000000003151000-memory.dmp

Filesize
4KB

Download
memory/212-38-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/212-48-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/212-21-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/212-47-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/212-46-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/212-22-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/212-39-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/212-40-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/212-41-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/212-42-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/212-43-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/212-44-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/212-45-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/4992-2-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/4992-5-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/4992-3-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/4992-4-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/4992-14-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads