modiloader | 28e12f4eab7acab7b98bd0ffd6f5003bde0f0994da2497fdb9ce61dfda3c8a14

Analysis

max time kernel
180s
max time network
186s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
31-12-2023 04:11

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General

Target

279e4b36527268f147af0f07e91bf272.exe
Size

674KB
MD5

279e4b36527268f147af0f07e91bf272
SHA1

882d390271025a9fe766522707a6e55e71204c91
SHA256

28e12f4eab7acab7b98bd0ffd6f5003bde0f0994da2497fdb9ce61dfda3c8a14
SHA512

7baef741912ae5dd29475122ae9d387b7cc17cb5be43f926b7d40208d434c9b458075a2a302a358d3569b94aef9c08faf0fc978a1d26de2bfd2536ae0ddda092
SSDEEP

12288:QZ2zG8GzJipNMQe6lmd0yS0C875TehNgNrAGEjIBKIPU1lHl35cUV/wr8URU3Z/:6cjMipNM36lmd0TkTVqGEjoKIIHlpcwB

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 22 IoCs

resource	yara_rule
behavioral2/memory/1740-50-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral2/memory/1740-59-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral2/memory/1740-60-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral2/memory/1740-57-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral2/memory/1740-56-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral2/memory/1740-55-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral2/memory/1740-53-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral2/memory/1740-51-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral2/memory/4980-120-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral2/memory/4980-121-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral2/memory/1740-74-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral2/memory/4980-127-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral2/memory/4980-129-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral2/memory/4980-130-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral2/memory/4980-131-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral2/memory/4980-132-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral2/memory/4980-133-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral2/memory/4980-134-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral2/memory/4980-135-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral2/memory/4980-136-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral2/memory/4980-137-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral2/memory/4980-138-0x0000000000400000-0x000000000044B000-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-1-5-21-1815711207-1844170477-3539718864-1000\Control Panel\International\Geo\Nation	279e4b36527268f147af0f07e91bf272.exe

Executes dropped EXE 2 IoCs

pid	Process
4400	mstwain32.exe
4980	mstwain32.exe

Loads dropped DLL 1 IoCs

pid	Process
4980	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-1-5-21-1815711207-1844170477-3539718864-1000\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	279e4b36527268f147af0f07e91bf272.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 1728 set thread context of 1740	1728	279e4b36527268f147af0f07e91bf272.exe	95
PID 4400 set thread context of 4980	4400	mstwain32.exe	97

Drops file in Windows directory 4 IoCs

description	ioc	Process
File created	C:\Windows\mstwain32.exe	279e4b36527268f147af0f07e91bf272.exe
File opened for modification	C:\Windows\mstwain32.exe	279e4b36527268f147af0f07e91bf272.exe
File opened for modification	C:\Windows\mstwain32.exe	mstwain32.exe
File created	C:\Windows\ntdtcstp.dll	mstwain32.exe

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

System Information Discovery
T1082

NTFS ADS 8 IoCs

description	ioc	Process
File opened for modification	C:\ProgramData:$SS_DESCRIPTOR_	mstwain32.exe
File created	C:\ProgramData:$SS_DESCRIPTOR_SBXNV9VVGV1BF1T9RV6H5L8HWHP6HTP4FBNTGNPFSPF7VBCVP4GF	279e4b36527268f147af0f07e91bf272.exe
File created	C:\ProgramData\DYA_UJRGBOUHHTEALCHTW\1.0.0:$SS_DESCRIPTOR_SBXNV9VVGV1BF1T9RV6H5L8HWHP6HTP4FBNTGNPFSPF7VBCVP4GF	279e4b36527268f147af0f07e91bf272.exe
File created	C:\Users\Public\Desktop:$SS_DESCRIPTOR_SBXNV9VVGV1BF1T9RV6H5L8HWHP6HTP4FBNTGNPFSPF7VBCVP4GF	279e4b36527268f147af0f07e91bf272.exe
File opened for modification	C:\ProgramData\DYA_UJRGBOUHHTEALCHTW\1.0.0:$SS_DESCRIPTOR_SBXNV9VVGV1BF1T9RV6H5L8HWHP6HTP4FBNTGNPFSPF7VBCVP4GF	mstwain32.exe
File opened for modification	C:\ProgramData\DYA_UJRGBOUHHTEALCHTW\1.0.0:$SS_DESCRIPTOR_	mstwain32.exe
File created	C:\Users\Public\Desktop:$SS_DESCRIPTOR_SBXNV9VVGV1BF1T9RV6H5L8HWHP6HTP4FBNTGNPFSPF7VBCVP4GF	mstwain32.exe
File opened for modification	C:\ProgramData:$SS_DESCRIPTOR_SBXNV9VVGV1BF1T9RV6H5L8HWHP6HTP4FBNTGNPFSPF7VBCVP4GF	mstwain32.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
1728	279e4b36527268f147af0f07e91bf272.exe
1728	279e4b36527268f147af0f07e91bf272.exe
1728	279e4b36527268f147af0f07e91bf272.exe
1728	279e4b36527268f147af0f07e91bf272.exe
1728	279e4b36527268f147af0f07e91bf272.exe
1728	279e4b36527268f147af0f07e91bf272.exe
4400	mstwain32.exe
4400	mstwain32.exe
4400	mstwain32.exe
4400	mstwain32.exe
4400	mstwain32.exe
4400	mstwain32.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	1740	279e4b36527268f147af0f07e91bf272.exe
Token: SeBackupPrivilege	3688	vssvc.exe
Token: SeRestorePrivilege	3688	vssvc.exe
Token: SeAuditPrivilege	3688	vssvc.exe
Token: SeDebugPrivilege	4980	mstwain32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1728	279e4b36527268f147af0f07e91bf272.exe
4400	mstwain32.exe

Suspicious use of WriteProcessMemory 29 IoCs

description	pid	Process	procid_target
PID 1728 wrote to memory of 1740	1728	279e4b36527268f147af0f07e91bf272.exe	95
PID 1728 wrote to memory of 1740	1728	279e4b36527268f147af0f07e91bf272.exe	95
PID 1728 wrote to memory of 1740	1728	279e4b36527268f147af0f07e91bf272.exe	95
PID 1728 wrote to memory of 1740	1728	279e4b36527268f147af0f07e91bf272.exe	95
PID 1728 wrote to memory of 1740	1728	279e4b36527268f147af0f07e91bf272.exe	95
PID 1728 wrote to memory of 1740	1728	279e4b36527268f147af0f07e91bf272.exe	95
PID 1728 wrote to memory of 1740	1728	279e4b36527268f147af0f07e91bf272.exe	95
PID 1728 wrote to memory of 1740	1728	279e4b36527268f147af0f07e91bf272.exe	95
PID 1728 wrote to memory of 1740	1728	279e4b36527268f147af0f07e91bf272.exe	95
PID 1728 wrote to memory of 1740	1728	279e4b36527268f147af0f07e91bf272.exe	95
PID 1728 wrote to memory of 1740	1728	279e4b36527268f147af0f07e91bf272.exe	95
PID 1728 wrote to memory of 1740	1728	279e4b36527268f147af0f07e91bf272.exe	95
PID 1728 wrote to memory of 1740	1728	279e4b36527268f147af0f07e91bf272.exe	95
PID 1740 wrote to memory of 4400	1740	279e4b36527268f147af0f07e91bf272.exe	98
PID 1740 wrote to memory of 4400	1740	279e4b36527268f147af0f07e91bf272.exe	98
PID 1740 wrote to memory of 4400	1740	279e4b36527268f147af0f07e91bf272.exe	98
PID 4400 wrote to memory of 4980	4400	mstwain32.exe	97
PID 4400 wrote to memory of 4980	4400	mstwain32.exe	97
PID 4400 wrote to memory of 4980	4400	mstwain32.exe	97
PID 4400 wrote to memory of 4980	4400	mstwain32.exe	97
PID 4400 wrote to memory of 4980	4400	mstwain32.exe	97
PID 4400 wrote to memory of 4980	4400	mstwain32.exe	97
PID 4400 wrote to memory of 4980	4400	mstwain32.exe	97
PID 4400 wrote to memory of 4980	4400	mstwain32.exe	97
PID 4400 wrote to memory of 4980	4400	mstwain32.exe	97
PID 4400 wrote to memory of 4980	4400	mstwain32.exe	97
PID 4400 wrote to memory of 4980	4400	mstwain32.exe	97
PID 4400 wrote to memory of 4980	4400	mstwain32.exe	97
PID 4400 wrote to memory of 4980	4400	mstwain32.exe	97

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

Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
ransomware

C:\Users\Admin\AppData\Local\Temp\279e4b36527268f147af0f07e91bf272.exe
"C:\Users\Admin\AppData\Local\Temp\279e4b36527268f147af0f07e91bf272.exe"
1⤵
- Suspicious use of SetThreadContext
- NTFS ADS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1728
- C:\Users\Admin\AppData\Local\Temp\279e4b36527268f147af0f07e91bf272.exe
  C:\Users\Admin\AppData\Local\Temp\279e4b36527268f147af0f07e91bf272.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:1740
- - C:\Windows\mstwain32.exe
    "C:\Windows\mstwain32.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Drops file in Windows directory
    - NTFS ADS
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:4400

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3688

C:\Windows\mstwain32.exe
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
- System policy modification
PID:4980

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

Replay Monitor

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Downloads

C:\ProgramData\DYA_UJRGBOUHHTEALCHTW\1.0.0\Data\app.dat

Filesize
971B

MD5
317acba37eb34096d15ed1e683dd1385

SHA1
7433c11079dcc5cf2c4bec9b2ea99ca1fdf18837

SHA256
6c2946b796c66f157bf5f6b02692a42a718db0e91a6aede5068ff422ff3189ac

SHA512
b07da81389c53ce0ca4421046cacd1640ec68f37b3c67c51c1ac31f69befcd50aecd8dba63a49dc5dbc645607808d49d9b23db237fff9027250401ab4e406738

Download Submit
C:\ProgramData\DYA_UJRGBOUHHTEALCHTW\1.0.0\Data\updates.dat

Filesize
971B

MD5
c343e422f5d303d4ce6be60ee3092b4a

SHA1
6ff22376e9156e7a7e0bb4408b22cb9592604715

SHA256
a7c3534c9587ae4e2f88b020579e88a5250a56fe957e5e2f984717880eff9017

SHA512
08aefd3697c405fb5a0b0a63a5daff41d4ba67cf400ac9b828bf5ac49f83f2e980aad7d820a63fe1de86b83edc71764035b323824c1e924abab73708898a5e37

Download Submit
C:\Users\Admin\AppData\Roaming\DYA_UJRGBOUHHTEALCHTW\1.0.0\Data\dya.dat

Filesize
971B

MD5
e1eb51da391c7f76b269b2d84be29e01

SHA1
e86a410f23e64771b8d42f5b48378e8dabd10923

SHA256
0507fe20ab862b39736a25eb13a03ece5bf14ad0bb883735ad9198a66e20b4e5

SHA512
5baa14a2914f6e1713af66ac882cf70145d283bee75f11bd1e5d192e3c8296bcead5bd595d989ba5960261a43e827475f607768a4e497e51d85627e0bc349cb2

Download Submit
memory/1728-61-0x0000000000400000-0x00000000004AA000-memory.dmp

Filesize
680KB

Download
memory/1728-1-0x0000000000400000-0x00000000004AA000-memory.dmp

Filesize
680KB

Download
memory/1728-2-0x0000000000400000-0x00000000004AA000-memory.dmp

Filesize
680KB

Download
memory/1728-45-0x0000000000400000-0x00000000004AA000-memory.dmp

Filesize
680KB

Download
memory/1728-44-0x0000000000400000-0x00000000004AA000-memory.dmp

Filesize
680KB

Download
memory/1728-46-0x0000000000400000-0x00000000004AA000-memory.dmp

Filesize
680KB

Download
memory/1728-49-0x0000000000400000-0x00000000004AA000-memory.dmp

Filesize
680KB

Download
memory/1728-0-0x0000000000400000-0x00000000004AA000-memory.dmp

Filesize
680KB

Download
memory/1740-128-0x0000000000A60000-0x0000000000A61000-memory.dmp

Filesize
4KB

Download
memory/1740-74-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/1740-59-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/1740-57-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/1740-56-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/1740-55-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/1740-53-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/1740-51-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/1740-60-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/1740-78-0x0000000000A60000-0x0000000000A61000-memory.dmp

Filesize
4KB

Download
memory/1740-50-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/4400-107-0x0000000000400000-0x00000000004AA000-memory.dmp

Filesize
680KB

Download
memory/4400-104-0x0000000000400000-0x00000000004AA000-memory.dmp

Filesize
680KB

Download
memory/4400-79-0x0000000000400000-0x00000000004AA000-memory.dmp

Filesize
680KB

Download
memory/4400-75-0x0000000000400000-0x00000000004AA000-memory.dmp

Filesize
680KB

Download
memory/4400-119-0x0000000000400000-0x00000000004AA000-memory.dmp

Filesize
680KB

Download
memory/4400-103-0x0000000000400000-0x00000000004AA000-memory.dmp

Filesize
680KB

Download
memory/4400-76-0x0000000000400000-0x00000000004AA000-memory.dmp

Filesize
680KB

Download
memory/4980-126-0x0000000002460000-0x0000000002461000-memory.dmp

Filesize
4KB

Download
memory/4980-133-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/4980-125-0x0000000000930000-0x0000000000931000-memory.dmp

Filesize
4KB

Download
memory/4980-127-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/4980-120-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/4980-129-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/4980-130-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/4980-131-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/4980-132-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/4980-121-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/4980-134-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/4980-135-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/4980-136-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/4980-137-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/4980-138-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/4980-139-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/4980-140-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/4980-141-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download