modiloader | 21ea2b1e9ff91ecb2a28be24c64fd3acbde82750fb56f04d6144c832ca7f4374

Analysis

max time kernel
119s
max time network
115s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
08/09/2024, 02:42

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General

Target

3680dab7a6c71c0451244780836bdf30N.exe
Size

326KB
MD5

3680dab7a6c71c0451244780836bdf30
SHA1

b7e297e6dfe6a2f1bc3de464ce4aaedcc6af592a
SHA256

21ea2b1e9ff91ecb2a28be24c64fd3acbde82750fb56f04d6144c832ca7f4374
SHA512

2be34a7de56ac96b4e77b2d7bffaa0f27385df64079b418f265cd8bcee2e41017b4ea203bea85c2e9a97b0d8dedf138a8f63c4fc180f2cc45c24bf5eaa99c6b4
SSDEEP

3072:ce2A0wxDqUpM5scww4chO+O1BmP5DG0sg3i4XZ9WvDZHwdRX/L+gP38XV:csxD5cwohO+O1sVG0/pZ6iPC8

Score

10^/10

modiloader discovery persistence trojan upx

Malware Config

Signatures

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

ModiLoader Second Stage 4 IoCs

resource	yara_rule
behavioral2/memory/3976-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3976-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3976-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3976-60-0x0000000000400000-0x0000000000414000-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-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\International\Geo\Nation	3680dab7a6c71c0451244780836bdf30N.exe

Executes dropped EXE 3 IoCs

pid	Process
1120	csrsll.exe
3816	csrsll.exe
3976	csrsll.exe

UPX packed file 20 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/4876-0-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/4876-4-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/1376-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1376-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1376-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4876-14-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/files/0x0004000000022d07-28.dat	upx
behavioral2/memory/1120-35-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/1376-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1120-40-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/1120-41-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/3976-45-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3976-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3976-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3976-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1120-56-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/3976-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1376-57-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3816-59-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3976-60-0x0000000000400000-0x0000000000414000-memory.dmp	upx

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-1-5-21-1302416131-1437503476-2806442725-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Win Pdf = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\csrsll.exe"	reg.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 4876 set thread context of 1376	4876	3680dab7a6c71c0451244780836bdf30N.exe	86
PID 1120 set thread context of 3816	1120	csrsll.exe	97
PID 1120 set thread context of 3976	1120	csrsll.exe	98

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 7 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3680dab7a6c71c0451244780836bdf30N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3680dab7a6c71c0451244780836bdf30N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3816	csrsll.exe
Token: SeDebugPrivilege	3816	csrsll.exe
Token: SeDebugPrivilege	3816	csrsll.exe
Token: SeDebugPrivilege	3816	csrsll.exe
Token: SeDebugPrivilege	3816	csrsll.exe
Token: SeDebugPrivilege	3816	csrsll.exe
Token: SeDebugPrivilege	3816	csrsll.exe
Token: SeDebugPrivilege	3816	csrsll.exe
Token: SeDebugPrivilege	3816	csrsll.exe
Token: SeDebugPrivilege	3816	csrsll.exe
Token: SeDebugPrivilege	3816	csrsll.exe
Token: SeDebugPrivilege	3816	csrsll.exe
Token: SeDebugPrivilege	3816	csrsll.exe
Token: SeDebugPrivilege	3816	csrsll.exe
Token: SeDebugPrivilege	3816	csrsll.exe
Token: SeDebugPrivilege	3816	csrsll.exe
Token: SeDebugPrivilege	3816	csrsll.exe
Token: SeDebugPrivilege	3816	csrsll.exe
Token: SeDebugPrivilege	3816	csrsll.exe
Token: SeDebugPrivilege	3816	csrsll.exe
Token: SeDebugPrivilege	3816	csrsll.exe
Token: SeDebugPrivilege	3816	csrsll.exe
Token: SeDebugPrivilege	3816	csrsll.exe
Token: SeDebugPrivilege	3816	csrsll.exe
Token: SeDebugPrivilege	3816	csrsll.exe
Token: SeDebugPrivilege	3816	csrsll.exe
Token: SeDebugPrivilege	3816	csrsll.exe
Token: SeDebugPrivilege	3816	csrsll.exe
Token: SeDebugPrivilege	3816	csrsll.exe
Token: SeDebugPrivilege	3816	csrsll.exe
Token: SeDebugPrivilege	3816	csrsll.exe
Token: SeDebugPrivilege	3816	csrsll.exe
Token: SeDebugPrivilege	3816	csrsll.exe
Token: SeDebugPrivilege	3816	csrsll.exe
Token: SeDebugPrivilege	3816	csrsll.exe
Token: SeDebugPrivilege	3816	csrsll.exe
Token: SeDebugPrivilege	3816	csrsll.exe
Token: SeDebugPrivilege	3816	csrsll.exe
Token: SeDebugPrivilege	3816	csrsll.exe
Token: SeDebugPrivilege	3816	csrsll.exe
Token: SeDebugPrivilege	3816	csrsll.exe
Token: SeDebugPrivilege	3816	csrsll.exe
Token: SeDebugPrivilege	3816	csrsll.exe
Token: SeDebugPrivilege	3816	csrsll.exe
Token: SeDebugPrivilege	3816	csrsll.exe
Token: SeDebugPrivilege	3816	csrsll.exe
Token: SeDebugPrivilege	3816	csrsll.exe
Token: SeDebugPrivilege	3816	csrsll.exe
Token: SeDebugPrivilege	3816	csrsll.exe
Token: SeDebugPrivilege	3816	csrsll.exe
Token: SeDebugPrivilege	3816	csrsll.exe
Token: SeDebugPrivilege	3816	csrsll.exe
Token: SeDebugPrivilege	3816	csrsll.exe
Token: SeDebugPrivilege	3816	csrsll.exe
Token: SeDebugPrivilege	3816	csrsll.exe
Token: SeDebugPrivilege	3816	csrsll.exe
Token: SeDebugPrivilege	3816	csrsll.exe
Token: SeDebugPrivilege	3816	csrsll.exe
Token: SeDebugPrivilege	3816	csrsll.exe
Token: SeDebugPrivilege	3816	csrsll.exe
Token: SeDebugPrivilege	3816	csrsll.exe
Token: SeDebugPrivilege	3816	csrsll.exe
Token: SeDebugPrivilege	3816	csrsll.exe
Token: SeDebugPrivilege	3816	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4876	3680dab7a6c71c0451244780836bdf30N.exe
1376	3680dab7a6c71c0451244780836bdf30N.exe
1120	csrsll.exe
3816	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4876 wrote to memory of 1376	4876	3680dab7a6c71c0451244780836bdf30N.exe	86
PID 4876 wrote to memory of 1376	4876	3680dab7a6c71c0451244780836bdf30N.exe	86
PID 4876 wrote to memory of 1376	4876	3680dab7a6c71c0451244780836bdf30N.exe	86
PID 4876 wrote to memory of 1376	4876	3680dab7a6c71c0451244780836bdf30N.exe	86
PID 4876 wrote to memory of 1376	4876	3680dab7a6c71c0451244780836bdf30N.exe	86
PID 4876 wrote to memory of 1376	4876	3680dab7a6c71c0451244780836bdf30N.exe	86
PID 4876 wrote to memory of 1376	4876	3680dab7a6c71c0451244780836bdf30N.exe	86
PID 4876 wrote to memory of 1376	4876	3680dab7a6c71c0451244780836bdf30N.exe	86
PID 1376 wrote to memory of 3344	1376	3680dab7a6c71c0451244780836bdf30N.exe	87
PID 1376 wrote to memory of 3344	1376	3680dab7a6c71c0451244780836bdf30N.exe	87
PID 1376 wrote to memory of 3344	1376	3680dab7a6c71c0451244780836bdf30N.exe	87
PID 3344 wrote to memory of 4988	3344	cmd.exe	90
PID 3344 wrote to memory of 4988	3344	cmd.exe	90
PID 3344 wrote to memory of 4988	3344	cmd.exe	90
PID 1376 wrote to memory of 1120	1376	3680dab7a6c71c0451244780836bdf30N.exe	91
PID 1376 wrote to memory of 1120	1376	3680dab7a6c71c0451244780836bdf30N.exe	91
PID 1376 wrote to memory of 1120	1376	3680dab7a6c71c0451244780836bdf30N.exe	91
PID 1120 wrote to memory of 3816	1120	csrsll.exe	97
PID 1120 wrote to memory of 3816	1120	csrsll.exe	97
PID 1120 wrote to memory of 3816	1120	csrsll.exe	97
PID 1120 wrote to memory of 3816	1120	csrsll.exe	97
PID 1120 wrote to memory of 3816	1120	csrsll.exe	97
PID 1120 wrote to memory of 3816	1120	csrsll.exe	97
PID 1120 wrote to memory of 3816	1120	csrsll.exe	97
PID 1120 wrote to memory of 3816	1120	csrsll.exe	97
PID 1120 wrote to memory of 3976	1120	csrsll.exe	98
PID 1120 wrote to memory of 3976	1120	csrsll.exe	98
PID 1120 wrote to memory of 3976	1120	csrsll.exe	98
PID 1120 wrote to memory of 3976	1120	csrsll.exe	98
PID 1120 wrote to memory of 3976	1120	csrsll.exe	98
PID 1120 wrote to memory of 3976	1120	csrsll.exe	98
PID 1120 wrote to memory of 3976	1120	csrsll.exe	98
PID 1120 wrote to memory of 3976	1120	csrsll.exe	98

C:\Users\Admin\AppData\Local\Temp\3680dab7a6c71c0451244780836bdf30N.exe
"C:\Users\Admin\AppData\Local\Temp\3680dab7a6c71c0451244780836bdf30N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4876
- C:\Users\Admin\AppData\Local\Temp\3680dab7a6c71c0451244780836bdf30N.exe
  "C:\Users\Admin\AppData\Local\Temp\3680dab7a6c71c0451244780836bdf30N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1376
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\NTYKI.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3344
  - - C:\Windows\SysWOW64\reg.exe
      REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "Win Pdf" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe" /f
      4⤵
      Adds Run key to start application
      System Location Discovery: System Language Discovery
      PID:4988
- - C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
    "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:1120
  - - C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      PID:3816
  - - C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      PID:3976

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

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\NTYKI.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe

Filesize
326KB

MD5
6274c2fdc18dd0a2a32b99600816db9f

SHA1
849a996a86e2ea6d4fd5d120c2746249980e16b2

SHA256
2197e1e8b1e5a456f9c320f826aac2d0c5591d91f655f3e88671345b302d2a33

SHA512
9c707082407c254287bbae37e886ea312fd814c7c76b78b8d64ada5a4ef5897352eb87a7a92ee09a5414b5fe1b060a9d52bc1fb74a098ba9ed5b3503489e8659

Download Submit
memory/1120-56-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/1120-41-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/1120-40-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/1120-35-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/1376-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1376-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1376-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1376-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1376-57-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3816-59-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3976-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3976-60-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3976-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3976-45-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3976-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3976-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4876-4-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/4876-3-0x0000000002B60000-0x0000000002B62000-memory.dmp

Filesize
8KB

Download
memory/4876-5-0x0000000002B80000-0x0000000002B82000-memory.dmp

Filesize
8KB

Download
memory/4876-6-0x0000000002B90000-0x0000000002B92000-memory.dmp

Filesize
8KB

Download
memory/4876-0-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/4876-14-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads