modiloader | 9238c7c541143165ea2a8920ae545f0d2552a50a53c80ffc2547ce620fe51296

Analysis

max time kernel
148s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240611-en
resource tags

arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
submitted
22/06/2024, 03:28

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General

Target
011302250aaa270a614f90cfc135d1df_JaffaCakes118.exe
Size 828KB
Sample240622-d1dbeazckq
SHA256 9238c7c541143165ea2a8920ae545f0d2552a50a53c80ffc2547ce620fe51296
MD5 011302250aaa270a614f90cfc135d1df
SHA1 ff0eb2da42a711ca6eb79c133a1d73dc9462b327
SHA512 a728789b8a6f1b5c94ce4e948efc916026f13f8490e2d121b80260dffcc6d523c5cbb84a7a27b79e66ff81ed7224ceceba0dac2bb23dbb16ca1ca59a4f3e2415
SSDEEP 12288:rqc6aDbxdDyvQY0IiRVE97oBhQyGPDpa1T22oyBqVfoZw3YinWPRUlvClCwQGJBN:1XX3Qr0inWPigN
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

modiloader evasion 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 20 IoCs

resource	yara_rule
behavioral2/memory/1712-22-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral2/memory/1712-23-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral2/memory/1712-19-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral2/memory/1712-35-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral2/memory/4600-43-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral2/memory/4600-44-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral2/memory/4600-48-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral2/memory/4600-49-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral2/memory/4600-50-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral2/memory/4600-51-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral2/memory/4600-52-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral2/memory/4600-53-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral2/memory/4600-54-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral2/memory/4600-55-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral2/memory/4600-56-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral2/memory/4600-57-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral2/memory/4600-58-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral2/memory/4600-59-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral2/memory/4600-60-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral2/memory/4600-61-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2

Checks computer location settings 2 TTPs 2 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-1-5-21-3169499791-3545231813-3156325206-1000\Control Panel\International\Geo\Nation	011302250aaa270a614f90cfc135d1df_JaffaCakes118.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3169499791-3545231813-3156325206-1000\Control Panel\International\Geo\Nation	OkjMt.exe.exe

Executes dropped EXE 4 IoCs

pid	Process
2728	OkjMt.exe.exe
1712	OkjMt.exe.exe
3628	mstwain32.exe
4600	mstwain32.exe

Loads dropped DLL 1 IoCs

pid	Process
4600	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	OkjMt.exe.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 2728 set thread context of 1712	2728	OkjMt.exe.exe	86
PID 3628 set thread context of 4600	3628	mstwain32.exe	94

Drops file in Windows directory 3 IoCs

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

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	1712	OkjMt.exe.exe
Token: SeBackupPrivilege	4064	vssvc.exe
Token: SeRestorePrivilege	4064	vssvc.exe
Token: SeAuditPrivilege	4064	vssvc.exe
Token: SeDebugPrivilege	4600	mstwain32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2728	OkjMt.exe.exe
3628	mstwain32.exe

Suspicious use of WriteProcessMemory 32 IoCs

description	pid	Process	procid_target
PID 4348 wrote to memory of 2728	4348	011302250aaa270a614f90cfc135d1df_JaffaCakes118.exe	85
PID 4348 wrote to memory of 2728	4348	011302250aaa270a614f90cfc135d1df_JaffaCakes118.exe	85
PID 4348 wrote to memory of 2728	4348	011302250aaa270a614f90cfc135d1df_JaffaCakes118.exe	85
PID 2728 wrote to memory of 1712	2728	OkjMt.exe.exe	86
PID 2728 wrote to memory of 1712	2728	OkjMt.exe.exe	86
PID 2728 wrote to memory of 1712	2728	OkjMt.exe.exe	86
PID 2728 wrote to memory of 1712	2728	OkjMt.exe.exe	86
PID 2728 wrote to memory of 1712	2728	OkjMt.exe.exe	86
PID 2728 wrote to memory of 1712	2728	OkjMt.exe.exe	86
PID 2728 wrote to memory of 1712	2728	OkjMt.exe.exe	86
PID 2728 wrote to memory of 1712	2728	OkjMt.exe.exe	86
PID 2728 wrote to memory of 1712	2728	OkjMt.exe.exe	86
PID 2728 wrote to memory of 1712	2728	OkjMt.exe.exe	86
PID 2728 wrote to memory of 1712	2728	OkjMt.exe.exe	86
PID 2728 wrote to memory of 1712	2728	OkjMt.exe.exe	86
PID 2728 wrote to memory of 1712	2728	OkjMt.exe.exe	86
PID 1712 wrote to memory of 3628	1712	OkjMt.exe.exe	93
PID 1712 wrote to memory of 3628	1712	OkjMt.exe.exe	93
PID 1712 wrote to memory of 3628	1712	OkjMt.exe.exe	93
PID 3628 wrote to memory of 4600	3628	mstwain32.exe	94
PID 3628 wrote to memory of 4600	3628	mstwain32.exe	94
PID 3628 wrote to memory of 4600	3628	mstwain32.exe	94
PID 3628 wrote to memory of 4600	3628	mstwain32.exe	94
PID 3628 wrote to memory of 4600	3628	mstwain32.exe	94
PID 3628 wrote to memory of 4600	3628	mstwain32.exe	94
PID 3628 wrote to memory of 4600	3628	mstwain32.exe	94
PID 3628 wrote to memory of 4600	3628	mstwain32.exe	94
PID 3628 wrote to memory of 4600	3628	mstwain32.exe	94
PID 3628 wrote to memory of 4600	3628	mstwain32.exe	94
PID 3628 wrote to memory of 4600	3628	mstwain32.exe	94
PID 3628 wrote to memory of 4600	3628	mstwain32.exe	94
PID 3628 wrote to memory of 4600	3628	mstwain32.exe	94

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\011302250aaa270a614f90cfc135d1df_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\011302250aaa270a614f90cfc135d1df_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4348
- C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\OkjMt.exe.exe
  "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\OkjMt.exe.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2728
- - C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\OkjMt.exe.exe
    C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\OkjMt.exe.exe
    3⤵
    - Checks computer location settings
    - Executes dropped EXE
    - Checks whether UAC is enabled
    - Drops file in Windows directory
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:1712
  - - C:\Windows\mstwain32.exe
      "C:\Windows\mstwain32.exe" \melt "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\OkjMt.exe.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      PID:3628
    - - C:\Windows\mstwain32.exe
        
        C:\Windows\mstwain32.exe
        5⤵
        UAC bypass
        Executes dropped EXE
        Loads dropped DLL
        Checks whether UAC is enabled
        Drops file in Windows directory
        Suspicious use of AdjustPrivilegeToken
        System policy modification
        
        PID:4600

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4064

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

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

OkjMt.exe.exe

Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\OkjMt.exe.exe
Size 304KB
SHA256 b2200a26937a2b4a2c19919e8e8f285831508fb9c9fc99354dae7f0d84f7e156
MD5 ad1e02fb3b2ef5a24c7ff10beeb4a449
SHA1 f336b1448434dc4464c97c3d051ab20e613f99ad
SHA512 dcf6a03cc25ea8359bb413d20d2881ee49d8a5e22e60677e537b789e1786115d1ecb03d353d1209a0e8ab36410f0aa51419a1b4fbbccffe458fd4fa7c2939f81
SSDEEP 6144:ymXPVkb+6a7GAM4CA8MEVuvBf5Kkm4AmhtM:FKZa7E1MXJt/M
MD5 SHA1 SHA512 SSDEEP

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ntdtcstp.dll

Path C:\Windows\ntdtcstp.dll
Size 40KB
SHA256 003eb1ba56dc99c6a6d4e8f35233edcee64aa8001ac5f7289369cae2325ff019
MD5 3f689ab34ba20ffbc647f3c4ce7c9c92
SHA1 0275be6c5d43a4916f4b6b2b4aa06398e193206f
SHA512 5336b3d410c21746a81a67c1b0da791d5592d4dc42fe559bc9b12a89b6bc6aef04b385a1566e55a7599c2489741ee7b0953f9cb0b3b5b9a9feb006678e2bdbce
SSDEEP 768:JYTpEMMLAEWGsxX/M1DXCslms9/8oMUr:JYTpEMMLD8UDXCiFmoMM
MD5 SHA1 SHA512 SSDEEP

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memory/1712-22-0x0000000000400000-0x000000000044B000-memory.dmp

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memory/1712-23-0x0000000000400000-0x000000000044B000-memory.dmp

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memory/1712-19-0x0000000000400000-0x000000000044B000-memory.dmp

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memory/1712-35-0x0000000000400000-0x000000000044B000-memory.dmp

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memory/4348-1-0x00007FF832DD0000-0x00007FF833771000-memory.dmp

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memory/4348-15-0x00007FF832DD0000-0x00007FF833771000-memory.dmp

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memory/4348-18-0x00007FF832DD0000-0x00007FF833771000-memory.dmp

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memory/4348-0-0x00007FF833085000-0x00007FF833086000-memory.dmp

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memory/4348-2-0x000000001B1C0000-0x000000001B266000-memory.dmp

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memory/4600-58-0x0000000000400000-0x000000000044B000-memory.dmp

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memory/4600-53-0x0000000000400000-0x000000000044B000-memory.dmp

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memory/4600-48-0x0000000000400000-0x000000000044B000-memory.dmp

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memory/4600-43-0x0000000000400000-0x000000000044B000-memory.dmp

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memory/4600-51-0x0000000000400000-0x000000000044B000-memory.dmp

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memory/4600-49-0x0000000000400000-0x000000000044B000-memory.dmp

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memory/4600-52-0x0000000000400000-0x000000000044B000-memory.dmp

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memory/4600-44-0x0000000000400000-0x000000000044B000-memory.dmp

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memory/4600-54-0x0000000000400000-0x000000000044B000-memory.dmp

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memory/4600-55-0x0000000000400000-0x000000000044B000-memory.dmp

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memory/4600-56-0x0000000000400000-0x000000000044B000-memory.dmp

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memory/4600-57-0x0000000000400000-0x000000000044B000-memory.dmp

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memory/4600-50-0x0000000000400000-0x000000000044B000-memory.dmp

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memory/4600-59-0x0000000000400000-0x000000000044B000-memory.dmp

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memory/4600-60-0x0000000000400000-0x000000000044B000-memory.dmp

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memory/4600-61-0x0000000000400000-0x000000000044B000-memory.dmp

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Analysis

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General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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