modiloader | 6d8ae0e72548793b6647712cf91a8ac4a3cc77ff71f67f0186b1b08f1254c37b

Analysis

max time kernel
119s
max time network
118s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
12-01-2025 17:03

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General

Target

6d8ae0e72548793b6647712cf91a8ac4a3cc77ff71f67f0186b1b08f1254c37bN.exe
Size

300KB
MD5

6011ba709f8dbe0ab8024418e3f2ed40
SHA1

12ee383bb81d383ca2f5a3a7e0e0f35e89329f43
SHA256

6d8ae0e72548793b6647712cf91a8ac4a3cc77ff71f67f0186b1b08f1254c37b
SHA512

f74d61877d1feddf785f391c99c2dcbfe77dcc39925efb073f612a1d668d05eaffd93d25e29ceecb9393bf13736405e70249b5e543ed91996db9eaeffcd5ea5c
SSDEEP

3072:Ue2A0wxDqUpM5scww4chO+O1BmP5DG0sg3i4XZ9WvDZHwdRX/L+gP38Ge:UsxD5cwohO+O1sVG0/pZ6iPC8s

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 family
modiloader

ModiLoader Second Stage 4 IoCs

resource	yara_rule
behavioral2/memory/644-51-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/644-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/644-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/644-59-0x0000000000400000-0x0000000000414000-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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	6d8ae0e72548793b6647712cf91a8ac4a3cc77ff71f67f0186b1b08f1254c37bN.exe

Executes dropped EXE 3 IoCs

pid	Process
3864	csrsll.exe
3856	csrsll.exe
644	csrsll.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-1-5-21-4050598569-1597076380-177084960-1000\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 748 set thread context of 2964	748	6d8ae0e72548793b6647712cf91a8ac4a3cc77ff71f67f0186b1b08f1254c37bN.exe	87
PID 3864 set thread context of 3856	3864	csrsll.exe	95
PID 3864 set thread context of 644	3864	csrsll.exe	96

UPX packed file 12 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2964-6-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2964-8-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2964-10-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2964-37-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/644-44-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/644-49-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/644-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/644-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/644-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2964-56-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3856-58-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/644-59-0x0000000000400000-0x0000000000414000-memory.dmp	upx

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	csrsll.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	6d8ae0e72548793b6647712cf91a8ac4a3cc77ff71f67f0186b1b08f1254c37bN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	6d8ae0e72548793b6647712cf91a8ac4a3cc77ff71f67f0186b1b08f1254c37bN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3856	csrsll.exe
Token: SeDebugPrivilege	3856	csrsll.exe
Token: SeDebugPrivilege	3856	csrsll.exe
Token: SeDebugPrivilege	3856	csrsll.exe
Token: SeDebugPrivilege	3856	csrsll.exe
Token: SeDebugPrivilege	3856	csrsll.exe
Token: SeDebugPrivilege	3856	csrsll.exe
Token: SeDebugPrivilege	3856	csrsll.exe
Token: SeDebugPrivilege	3856	csrsll.exe
Token: SeDebugPrivilege	3856	csrsll.exe
Token: SeDebugPrivilege	3856	csrsll.exe
Token: SeDebugPrivilege	3856	csrsll.exe
Token: SeDebugPrivilege	3856	csrsll.exe
Token: SeDebugPrivilege	3856	csrsll.exe
Token: SeDebugPrivilege	3856	csrsll.exe
Token: SeDebugPrivilege	3856	csrsll.exe
Token: SeDebugPrivilege	3856	csrsll.exe
Token: SeDebugPrivilege	3856	csrsll.exe
Token: SeDebugPrivilege	3856	csrsll.exe
Token: SeDebugPrivilege	3856	csrsll.exe
Token: SeDebugPrivilege	3856	csrsll.exe
Token: SeDebugPrivilege	3856	csrsll.exe
Token: SeDebugPrivilege	3856	csrsll.exe
Token: SeDebugPrivilege	3856	csrsll.exe
Token: SeDebugPrivilege	3856	csrsll.exe
Token: SeDebugPrivilege	3856	csrsll.exe
Token: SeDebugPrivilege	3856	csrsll.exe
Token: SeDebugPrivilege	3856	csrsll.exe
Token: SeDebugPrivilege	3856	csrsll.exe
Token: SeDebugPrivilege	3856	csrsll.exe
Token: SeDebugPrivilege	3856	csrsll.exe
Token: SeDebugPrivilege	3856	csrsll.exe
Token: SeDebugPrivilege	3856	csrsll.exe
Token: SeDebugPrivilege	3856	csrsll.exe
Token: SeDebugPrivilege	3856	csrsll.exe
Token: SeDebugPrivilege	3856	csrsll.exe
Token: SeDebugPrivilege	3856	csrsll.exe
Token: SeDebugPrivilege	3856	csrsll.exe
Token: SeDebugPrivilege	3856	csrsll.exe
Token: SeDebugPrivilege	3856	csrsll.exe
Token: SeDebugPrivilege	3856	csrsll.exe
Token: SeDebugPrivilege	3856	csrsll.exe
Token: SeDebugPrivilege	3856	csrsll.exe
Token: SeDebugPrivilege	3856	csrsll.exe
Token: SeDebugPrivilege	3856	csrsll.exe
Token: SeDebugPrivilege	3856	csrsll.exe
Token: SeDebugPrivilege	3856	csrsll.exe
Token: SeDebugPrivilege	3856	csrsll.exe
Token: SeDebugPrivilege	3856	csrsll.exe
Token: SeDebugPrivilege	3856	csrsll.exe
Token: SeDebugPrivilege	3856	csrsll.exe
Token: SeDebugPrivilege	3856	csrsll.exe
Token: SeDebugPrivilege	3856	csrsll.exe
Token: SeDebugPrivilege	3856	csrsll.exe
Token: SeDebugPrivilege	3856	csrsll.exe
Token: SeDebugPrivilege	3856	csrsll.exe
Token: SeDebugPrivilege	3856	csrsll.exe
Token: SeDebugPrivilege	3856	csrsll.exe
Token: SeDebugPrivilege	3856	csrsll.exe
Token: SeDebugPrivilege	3856	csrsll.exe
Token: SeDebugPrivilege	3856	csrsll.exe
Token: SeDebugPrivilege	3856	csrsll.exe
Token: SeDebugPrivilege	3856	csrsll.exe
Token: SeDebugPrivilege	3856	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
748	6d8ae0e72548793b6647712cf91a8ac4a3cc77ff71f67f0186b1b08f1254c37bN.exe
2964	6d8ae0e72548793b6647712cf91a8ac4a3cc77ff71f67f0186b1b08f1254c37bN.exe
3864	csrsll.exe
3856	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 748 wrote to memory of 2964	748	6d8ae0e72548793b6647712cf91a8ac4a3cc77ff71f67f0186b1b08f1254c37bN.exe	87
PID 748 wrote to memory of 2964	748	6d8ae0e72548793b6647712cf91a8ac4a3cc77ff71f67f0186b1b08f1254c37bN.exe	87
PID 748 wrote to memory of 2964	748	6d8ae0e72548793b6647712cf91a8ac4a3cc77ff71f67f0186b1b08f1254c37bN.exe	87
PID 748 wrote to memory of 2964	748	6d8ae0e72548793b6647712cf91a8ac4a3cc77ff71f67f0186b1b08f1254c37bN.exe	87
PID 748 wrote to memory of 2964	748	6d8ae0e72548793b6647712cf91a8ac4a3cc77ff71f67f0186b1b08f1254c37bN.exe	87
PID 748 wrote to memory of 2964	748	6d8ae0e72548793b6647712cf91a8ac4a3cc77ff71f67f0186b1b08f1254c37bN.exe	87
PID 748 wrote to memory of 2964	748	6d8ae0e72548793b6647712cf91a8ac4a3cc77ff71f67f0186b1b08f1254c37bN.exe	87
PID 748 wrote to memory of 2964	748	6d8ae0e72548793b6647712cf91a8ac4a3cc77ff71f67f0186b1b08f1254c37bN.exe	87
PID 2964 wrote to memory of 2520	2964	6d8ae0e72548793b6647712cf91a8ac4a3cc77ff71f67f0186b1b08f1254c37bN.exe	88
PID 2964 wrote to memory of 2520	2964	6d8ae0e72548793b6647712cf91a8ac4a3cc77ff71f67f0186b1b08f1254c37bN.exe	88
PID 2964 wrote to memory of 2520	2964	6d8ae0e72548793b6647712cf91a8ac4a3cc77ff71f67f0186b1b08f1254c37bN.exe	88
PID 2520 wrote to memory of 2092	2520	cmd.exe	91
PID 2520 wrote to memory of 2092	2520	cmd.exe	91
PID 2520 wrote to memory of 2092	2520	cmd.exe	91
PID 2964 wrote to memory of 3864	2964	6d8ae0e72548793b6647712cf91a8ac4a3cc77ff71f67f0186b1b08f1254c37bN.exe	93
PID 2964 wrote to memory of 3864	2964	6d8ae0e72548793b6647712cf91a8ac4a3cc77ff71f67f0186b1b08f1254c37bN.exe	93
PID 2964 wrote to memory of 3864	2964	6d8ae0e72548793b6647712cf91a8ac4a3cc77ff71f67f0186b1b08f1254c37bN.exe	93
PID 3864 wrote to memory of 3856	3864	csrsll.exe	95
PID 3864 wrote to memory of 3856	3864	csrsll.exe	95
PID 3864 wrote to memory of 3856	3864	csrsll.exe	95
PID 3864 wrote to memory of 3856	3864	csrsll.exe	95
PID 3864 wrote to memory of 3856	3864	csrsll.exe	95
PID 3864 wrote to memory of 3856	3864	csrsll.exe	95
PID 3864 wrote to memory of 3856	3864	csrsll.exe	95
PID 3864 wrote to memory of 3856	3864	csrsll.exe	95
PID 3864 wrote to memory of 644	3864	csrsll.exe	96
PID 3864 wrote to memory of 644	3864	csrsll.exe	96
PID 3864 wrote to memory of 644	3864	csrsll.exe	96
PID 3864 wrote to memory of 644	3864	csrsll.exe	96
PID 3864 wrote to memory of 644	3864	csrsll.exe	96
PID 3864 wrote to memory of 644	3864	csrsll.exe	96
PID 3864 wrote to memory of 644	3864	csrsll.exe	96
PID 3864 wrote to memory of 644	3864	csrsll.exe	96

C:\Users\Admin\AppData\Local\Temp\6d8ae0e72548793b6647712cf91a8ac4a3cc77ff71f67f0186b1b08f1254c37bN.exe
"C:\Users\Admin\AppData\Local\Temp\6d8ae0e72548793b6647712cf91a8ac4a3cc77ff71f67f0186b1b08f1254c37bN.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:748
- C:\Users\Admin\AppData\Local\Temp\6d8ae0e72548793b6647712cf91a8ac4a3cc77ff71f67f0186b1b08f1254c37bN.exe
  "C:\Users\Admin\AppData\Local\Temp\6d8ae0e72548793b6647712cf91a8ac4a3cc77ff71f67f0186b1b08f1254c37bN.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2964
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\USRVI.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2520
  - - 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:2092
- - 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:3864
  - - 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:3856
  - - 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:644

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\USRVI.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
300KB

MD5
80b9ae6b32861c747c5df962f735bf56

SHA1
810803dae78a3b2e0be42b602077e04e71743a1e

SHA256
d80302ccefea3a06319c72c73025defc645ec42db58f251f71367ab3a0547c3a

SHA512
c5d0b5e521cfbc0388ce64a12ccb8a808949daaac55ee6d0a2ad904945bfb911afdc814ff0acba0bce19c5bee469944ae6e3421961000997e67b320c47f4f654

Download Submit
memory/644-44-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/644-49-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/644-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/644-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/644-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/644-59-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/748-4-0x0000000002A60000-0x0000000002A62000-memory.dmp

Filesize
8KB

Download
memory/748-3-0x0000000002A50000-0x0000000002A52000-memory.dmp

Filesize
8KB

Download
memory/748-5-0x0000000002A80000-0x0000000002A82000-memory.dmp

Filesize
8KB

Download
memory/748-0-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/2964-37-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2964-56-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2964-10-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2964-8-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2964-6-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3856-58-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3864-38-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/3864-55-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/3864-39-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads