modiloader | 6206ed52c13fca3b6fdd6c8ab6c85d03aa2a165a221c2aff335b0618cb5c2eff

Analysis

max time kernel
119s
max time network
122s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
20/01/2025, 09:32

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General

Target

6206ed52c13fca3b6fdd6c8ab6c85d03aa2a165a221c2aff335b0618cb5c2eff.exe
Size

90KB
MD5

d88e5c6d52dc93cd7d3c816b3bb4028c
SHA1

bc34076e28f41da23bbf0e38e9a71932658f095a
SHA256

6206ed52c13fca3b6fdd6c8ab6c85d03aa2a165a221c2aff335b0618cb5c2eff
SHA512

5faa3b21293874b065dab134130831f42fbab57ba54de9bcabfe80cec486e7867c4874ec1941c4d6f3c869a3ec58592c24178ce89e69e354616e6720e0b5aed1
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDk:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3u

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/3988-60-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3988-59-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3988-57-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3988-62-0x0000000000400000-0x0000000000414000-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-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	6206ed52c13fca3b6fdd6c8ab6c85d03aa2a165a221c2aff335b0618cb5c2eff.exe

Executes dropped EXE 3 IoCs

pid	Process
4436	csrsll.exe
3676	csrsll.exe
3988	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-1-5-21-4089630652-1596403869-279772308-1000\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 5004 set thread context of 3024	5004	6206ed52c13fca3b6fdd6c8ab6c85d03aa2a165a221c2aff335b0618cb5c2eff.exe	84
PID 4436 set thread context of 3676	4436	csrsll.exe	97
PID 4436 set thread context of 3988	4436	csrsll.exe	98

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/5004-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/5004-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3024-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3024-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/5004-12-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3024-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0008000000023cc0-29.dat	upx
behavioral2/memory/3024-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4436-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4436-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4436-47-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3988-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3988-45-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3988-60-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3988-59-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3024-58-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3988-57-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3676-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3988-62-0x0000000000400000-0x0000000000414000-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	6206ed52c13fca3b6fdd6c8ab6c85d03aa2a165a221c2aff335b0618cb5c2eff.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	6206ed52c13fca3b6fdd6c8ab6c85d03aa2a165a221c2aff335b0618cb5c2eff.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	3676	csrsll.exe
Token: SeDebugPrivilege	3676	csrsll.exe
Token: SeDebugPrivilege	3676	csrsll.exe
Token: SeDebugPrivilege	3676	csrsll.exe
Token: SeDebugPrivilege	3676	csrsll.exe
Token: SeDebugPrivilege	3676	csrsll.exe
Token: SeDebugPrivilege	3676	csrsll.exe
Token: SeDebugPrivilege	3676	csrsll.exe
Token: SeDebugPrivilege	3676	csrsll.exe
Token: SeDebugPrivilege	3676	csrsll.exe
Token: SeDebugPrivilege	3676	csrsll.exe
Token: SeDebugPrivilege	3676	csrsll.exe
Token: SeDebugPrivilege	3676	csrsll.exe
Token: SeDebugPrivilege	3676	csrsll.exe
Token: SeDebugPrivilege	3676	csrsll.exe
Token: SeDebugPrivilege	3676	csrsll.exe
Token: SeDebugPrivilege	3676	csrsll.exe
Token: SeDebugPrivilege	3676	csrsll.exe
Token: SeDebugPrivilege	3676	csrsll.exe
Token: SeDebugPrivilege	3676	csrsll.exe
Token: SeDebugPrivilege	3676	csrsll.exe
Token: SeDebugPrivilege	3676	csrsll.exe
Token: SeDebugPrivilege	3676	csrsll.exe
Token: SeDebugPrivilege	3676	csrsll.exe
Token: SeDebugPrivilege	3676	csrsll.exe
Token: SeDebugPrivilege	3676	csrsll.exe
Token: SeDebugPrivilege	3676	csrsll.exe
Token: SeDebugPrivilege	3676	csrsll.exe
Token: SeDebugPrivilege	3676	csrsll.exe
Token: SeDebugPrivilege	3676	csrsll.exe
Token: SeDebugPrivilege	3676	csrsll.exe
Token: SeDebugPrivilege	3676	csrsll.exe
Token: SeDebugPrivilege	3676	csrsll.exe
Token: SeDebugPrivilege	3676	csrsll.exe
Token: SeDebugPrivilege	3676	csrsll.exe
Token: SeDebugPrivilege	3676	csrsll.exe
Token: SeDebugPrivilege	3676	csrsll.exe
Token: SeDebugPrivilege	3676	csrsll.exe
Token: SeDebugPrivilege	3676	csrsll.exe
Token: SeDebugPrivilege	3676	csrsll.exe
Token: SeDebugPrivilege	3676	csrsll.exe
Token: SeDebugPrivilege	3676	csrsll.exe
Token: SeDebugPrivilege	3676	csrsll.exe
Token: SeDebugPrivilege	3676	csrsll.exe
Token: SeDebugPrivilege	3676	csrsll.exe
Token: SeDebugPrivilege	3676	csrsll.exe
Token: SeDebugPrivilege	3676	csrsll.exe
Token: SeDebugPrivilege	3676	csrsll.exe
Token: SeDebugPrivilege	3676	csrsll.exe
Token: SeDebugPrivilege	3676	csrsll.exe
Token: SeDebugPrivilege	3676	csrsll.exe
Token: SeDebugPrivilege	3676	csrsll.exe
Token: SeDebugPrivilege	3676	csrsll.exe
Token: SeDebugPrivilege	3676	csrsll.exe
Token: SeDebugPrivilege	3676	csrsll.exe
Token: SeDebugPrivilege	3676	csrsll.exe
Token: SeDebugPrivilege	3676	csrsll.exe
Token: SeDebugPrivilege	3676	csrsll.exe
Token: SeDebugPrivilege	3676	csrsll.exe
Token: SeDebugPrivilege	3676	csrsll.exe
Token: SeDebugPrivilege	3676	csrsll.exe
Token: SeDebugPrivilege	3676	csrsll.exe
Token: SeDebugPrivilege	3676	csrsll.exe
Token: SeDebugPrivilege	3676	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
5004	6206ed52c13fca3b6fdd6c8ab6c85d03aa2a165a221c2aff335b0618cb5c2eff.exe
3024	6206ed52c13fca3b6fdd6c8ab6c85d03aa2a165a221c2aff335b0618cb5c2eff.exe
4436	csrsll.exe
3676	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 5004 wrote to memory of 3024	5004	6206ed52c13fca3b6fdd6c8ab6c85d03aa2a165a221c2aff335b0618cb5c2eff.exe	84
PID 5004 wrote to memory of 3024	5004	6206ed52c13fca3b6fdd6c8ab6c85d03aa2a165a221c2aff335b0618cb5c2eff.exe	84
PID 5004 wrote to memory of 3024	5004	6206ed52c13fca3b6fdd6c8ab6c85d03aa2a165a221c2aff335b0618cb5c2eff.exe	84
PID 5004 wrote to memory of 3024	5004	6206ed52c13fca3b6fdd6c8ab6c85d03aa2a165a221c2aff335b0618cb5c2eff.exe	84
PID 5004 wrote to memory of 3024	5004	6206ed52c13fca3b6fdd6c8ab6c85d03aa2a165a221c2aff335b0618cb5c2eff.exe	84
PID 5004 wrote to memory of 3024	5004	6206ed52c13fca3b6fdd6c8ab6c85d03aa2a165a221c2aff335b0618cb5c2eff.exe	84
PID 5004 wrote to memory of 3024	5004	6206ed52c13fca3b6fdd6c8ab6c85d03aa2a165a221c2aff335b0618cb5c2eff.exe	84
PID 5004 wrote to memory of 3024	5004	6206ed52c13fca3b6fdd6c8ab6c85d03aa2a165a221c2aff335b0618cb5c2eff.exe	84
PID 3024 wrote to memory of 4876	3024	6206ed52c13fca3b6fdd6c8ab6c85d03aa2a165a221c2aff335b0618cb5c2eff.exe	89
PID 3024 wrote to memory of 4876	3024	6206ed52c13fca3b6fdd6c8ab6c85d03aa2a165a221c2aff335b0618cb5c2eff.exe	89
PID 3024 wrote to memory of 4876	3024	6206ed52c13fca3b6fdd6c8ab6c85d03aa2a165a221c2aff335b0618cb5c2eff.exe	89
PID 4876 wrote to memory of 2540	4876	cmd.exe	92
PID 4876 wrote to memory of 2540	4876	cmd.exe	92
PID 4876 wrote to memory of 2540	4876	cmd.exe	92
PID 3024 wrote to memory of 4436	3024	6206ed52c13fca3b6fdd6c8ab6c85d03aa2a165a221c2aff335b0618cb5c2eff.exe	93
PID 3024 wrote to memory of 4436	3024	6206ed52c13fca3b6fdd6c8ab6c85d03aa2a165a221c2aff335b0618cb5c2eff.exe	93
PID 3024 wrote to memory of 4436	3024	6206ed52c13fca3b6fdd6c8ab6c85d03aa2a165a221c2aff335b0618cb5c2eff.exe	93
PID 4436 wrote to memory of 3676	4436	csrsll.exe	97
PID 4436 wrote to memory of 3676	4436	csrsll.exe	97
PID 4436 wrote to memory of 3676	4436	csrsll.exe	97
PID 4436 wrote to memory of 3676	4436	csrsll.exe	97
PID 4436 wrote to memory of 3676	4436	csrsll.exe	97
PID 4436 wrote to memory of 3676	4436	csrsll.exe	97
PID 4436 wrote to memory of 3676	4436	csrsll.exe	97
PID 4436 wrote to memory of 3676	4436	csrsll.exe	97
PID 4436 wrote to memory of 3988	4436	csrsll.exe	98
PID 4436 wrote to memory of 3988	4436	csrsll.exe	98
PID 4436 wrote to memory of 3988	4436	csrsll.exe	98
PID 4436 wrote to memory of 3988	4436	csrsll.exe	98
PID 4436 wrote to memory of 3988	4436	csrsll.exe	98
PID 4436 wrote to memory of 3988	4436	csrsll.exe	98
PID 4436 wrote to memory of 3988	4436	csrsll.exe	98
PID 4436 wrote to memory of 3988	4436	csrsll.exe	98

C:\Users\Admin\AppData\Local\Temp\6206ed52c13fca3b6fdd6c8ab6c85d03aa2a165a221c2aff335b0618cb5c2eff.exe
"C:\Users\Admin\AppData\Local\Temp\6206ed52c13fca3b6fdd6c8ab6c85d03aa2a165a221c2aff335b0618cb5c2eff.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5004
- C:\Users\Admin\AppData\Local\Temp\6206ed52c13fca3b6fdd6c8ab6c85d03aa2a165a221c2aff335b0618cb5c2eff.exe
  "C:\Users\Admin\AppData\Local\Temp\6206ed52c13fca3b6fdd6c8ab6c85d03aa2a165a221c2aff335b0618cb5c2eff.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3024
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\BRSPX.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4876
  - - 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:2540
- - 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:4436
  - - 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:3676
  - - 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:3988

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\BRSPX.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
b62b561d6b32f74a0339da1a71d45130

SHA1
bc5492ad2f27f90058f282cc57913d74bd06a800

SHA256
a38bc304b1926c32da83ba5b8aa98b3cd39a6e1da4f2011886811165c6bbde2f

SHA512
f4a4fdd4036bd632de3c34ff49bc03e67524378fe370c5cd0b72cf11a69946fc9a0762d265e3119c4691f3763794fa30ed6f740fe23a5ff0c29c434a83597642

Download Submit
memory/3024-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3024-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3024-58-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3024-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3024-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3676-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3988-59-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3988-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3988-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3988-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3988-60-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3988-45-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4436-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4436-47-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4436-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/5004-4-0x0000000002310000-0x0000000002312000-memory.dmp

Filesize
8KB

Download
memory/5004-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/5004-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/5004-12-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/5004-6-0x0000000002330000-0x0000000002332000-memory.dmp

Filesize
8KB

Download
memory/5004-3-0x00000000022F0000-0x00000000022F2000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads