modiloader | c4a09dd0c32b6efe3a64408f345c1865083411712396dfe68dbabd7a932f75be

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
04-01-2025 10:32

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General

Target

c4a09dd0c32b6efe3a64408f345c1865083411712396dfe68dbabd7a932f75beN.exe
Size

90KB
MD5

96c7f4c651ac6992de5765f9a4498330
SHA1

87aee270a20de66dffaa890dba29251caa1a0a29
SHA256

c4a09dd0c32b6efe3a64408f345c1865083411712396dfe68dbabd7a932f75be
SHA512

a9c92d4a19fb4aa61988576b3932ee2cb14d5ec31d53aea2940f24df6d2c81afc007f97a1046e705b4c77a226ff311c5198d118a5cf0e37aa2840f6fe344b955
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDK:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3Y

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/4504-57-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4504-59-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4504-58-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4504-64-0x0000000000400000-0x0000000000414000-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	c4a09dd0c32b6efe3a64408f345c1865083411712396dfe68dbabd7a932f75beN.exe

Executes dropped EXE 3 IoCs

pid	Process
2832	csrsll.exe
1548	csrsll.exe
4504	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 3380 set thread context of 4488	3380	c4a09dd0c32b6efe3a64408f345c1865083411712396dfe68dbabd7a932f75beN.exe	82
PID 2832 set thread context of 1548	2832	csrsll.exe	93
PID 2832 set thread context of 4504	2832	csrsll.exe	94

UPX packed file 21 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3380-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3380-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4488-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4488-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3380-12-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4488-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0008000000023c9f-29.dat	upx
behavioral2/memory/2832-36-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4488-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2832-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2832-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4504-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4504-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2832-51-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2832-56-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4504-57-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4504-59-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4504-58-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4488-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1548-63-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4504-64-0x0000000000400000-0x0000000000414000-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	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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c4a09dd0c32b6efe3a64408f345c1865083411712396dfe68dbabd7a932f75beN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c4a09dd0c32b6efe3a64408f345c1865083411712396dfe68dbabd7a932f75beN.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1548	csrsll.exe
Token: SeDebugPrivilege	1548	csrsll.exe
Token: SeDebugPrivilege	1548	csrsll.exe
Token: SeDebugPrivilege	1548	csrsll.exe
Token: SeDebugPrivilege	1548	csrsll.exe
Token: SeDebugPrivilege	1548	csrsll.exe
Token: SeDebugPrivilege	1548	csrsll.exe
Token: SeDebugPrivilege	1548	csrsll.exe
Token: SeDebugPrivilege	1548	csrsll.exe
Token: SeDebugPrivilege	1548	csrsll.exe
Token: SeDebugPrivilege	1548	csrsll.exe
Token: SeDebugPrivilege	1548	csrsll.exe
Token: SeDebugPrivilege	1548	csrsll.exe
Token: SeDebugPrivilege	1548	csrsll.exe
Token: SeDebugPrivilege	1548	csrsll.exe
Token: SeDebugPrivilege	1548	csrsll.exe
Token: SeDebugPrivilege	1548	csrsll.exe
Token: SeDebugPrivilege	1548	csrsll.exe
Token: SeDebugPrivilege	1548	csrsll.exe
Token: SeDebugPrivilege	1548	csrsll.exe
Token: SeDebugPrivilege	1548	csrsll.exe
Token: SeDebugPrivilege	1548	csrsll.exe
Token: SeDebugPrivilege	1548	csrsll.exe
Token: SeDebugPrivilege	1548	csrsll.exe
Token: SeDebugPrivilege	1548	csrsll.exe
Token: SeDebugPrivilege	1548	csrsll.exe
Token: SeDebugPrivilege	1548	csrsll.exe
Token: SeDebugPrivilege	1548	csrsll.exe
Token: SeDebugPrivilege	1548	csrsll.exe
Token: SeDebugPrivilege	1548	csrsll.exe
Token: SeDebugPrivilege	1548	csrsll.exe
Token: SeDebugPrivilege	1548	csrsll.exe
Token: SeDebugPrivilege	1548	csrsll.exe
Token: SeDebugPrivilege	1548	csrsll.exe
Token: SeDebugPrivilege	1548	csrsll.exe
Token: SeDebugPrivilege	1548	csrsll.exe
Token: SeDebugPrivilege	1548	csrsll.exe
Token: SeDebugPrivilege	1548	csrsll.exe
Token: SeDebugPrivilege	1548	csrsll.exe
Token: SeDebugPrivilege	1548	csrsll.exe
Token: SeDebugPrivilege	1548	csrsll.exe
Token: SeDebugPrivilege	1548	csrsll.exe
Token: SeDebugPrivilege	1548	csrsll.exe
Token: SeDebugPrivilege	1548	csrsll.exe
Token: SeDebugPrivilege	1548	csrsll.exe
Token: SeDebugPrivilege	1548	csrsll.exe
Token: SeDebugPrivilege	1548	csrsll.exe
Token: SeDebugPrivilege	1548	csrsll.exe
Token: SeDebugPrivilege	1548	csrsll.exe
Token: SeDebugPrivilege	1548	csrsll.exe
Token: SeDebugPrivilege	1548	csrsll.exe
Token: SeDebugPrivilege	1548	csrsll.exe
Token: SeDebugPrivilege	1548	csrsll.exe
Token: SeDebugPrivilege	1548	csrsll.exe
Token: SeDebugPrivilege	1548	csrsll.exe
Token: SeDebugPrivilege	1548	csrsll.exe
Token: SeDebugPrivilege	1548	csrsll.exe
Token: SeDebugPrivilege	1548	csrsll.exe
Token: SeDebugPrivilege	1548	csrsll.exe
Token: SeDebugPrivilege	1548	csrsll.exe
Token: SeDebugPrivilege	1548	csrsll.exe
Token: SeDebugPrivilege	1548	csrsll.exe
Token: SeDebugPrivilege	1548	csrsll.exe
Token: SeDebugPrivilege	1548	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
3380	c4a09dd0c32b6efe3a64408f345c1865083411712396dfe68dbabd7a932f75beN.exe
4488	c4a09dd0c32b6efe3a64408f345c1865083411712396dfe68dbabd7a932f75beN.exe
2832	csrsll.exe
1548	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 3380 wrote to memory of 4488	3380	c4a09dd0c32b6efe3a64408f345c1865083411712396dfe68dbabd7a932f75beN.exe	82
PID 3380 wrote to memory of 4488	3380	c4a09dd0c32b6efe3a64408f345c1865083411712396dfe68dbabd7a932f75beN.exe	82
PID 3380 wrote to memory of 4488	3380	c4a09dd0c32b6efe3a64408f345c1865083411712396dfe68dbabd7a932f75beN.exe	82
PID 3380 wrote to memory of 4488	3380	c4a09dd0c32b6efe3a64408f345c1865083411712396dfe68dbabd7a932f75beN.exe	82
PID 3380 wrote to memory of 4488	3380	c4a09dd0c32b6efe3a64408f345c1865083411712396dfe68dbabd7a932f75beN.exe	82
PID 3380 wrote to memory of 4488	3380	c4a09dd0c32b6efe3a64408f345c1865083411712396dfe68dbabd7a932f75beN.exe	82
PID 3380 wrote to memory of 4488	3380	c4a09dd0c32b6efe3a64408f345c1865083411712396dfe68dbabd7a932f75beN.exe	82
PID 3380 wrote to memory of 4488	3380	c4a09dd0c32b6efe3a64408f345c1865083411712396dfe68dbabd7a932f75beN.exe	82
PID 4488 wrote to memory of 904	4488	c4a09dd0c32b6efe3a64408f345c1865083411712396dfe68dbabd7a932f75beN.exe	83
PID 4488 wrote to memory of 904	4488	c4a09dd0c32b6efe3a64408f345c1865083411712396dfe68dbabd7a932f75beN.exe	83
PID 4488 wrote to memory of 904	4488	c4a09dd0c32b6efe3a64408f345c1865083411712396dfe68dbabd7a932f75beN.exe	83
PID 904 wrote to memory of 544	904	cmd.exe	86
PID 904 wrote to memory of 544	904	cmd.exe	86
PID 904 wrote to memory of 544	904	cmd.exe	86
PID 4488 wrote to memory of 2832	4488	c4a09dd0c32b6efe3a64408f345c1865083411712396dfe68dbabd7a932f75beN.exe	87
PID 4488 wrote to memory of 2832	4488	c4a09dd0c32b6efe3a64408f345c1865083411712396dfe68dbabd7a932f75beN.exe	87
PID 4488 wrote to memory of 2832	4488	c4a09dd0c32b6efe3a64408f345c1865083411712396dfe68dbabd7a932f75beN.exe	87
PID 2832 wrote to memory of 1548	2832	csrsll.exe	93
PID 2832 wrote to memory of 1548	2832	csrsll.exe	93
PID 2832 wrote to memory of 1548	2832	csrsll.exe	93
PID 2832 wrote to memory of 1548	2832	csrsll.exe	93
PID 2832 wrote to memory of 1548	2832	csrsll.exe	93
PID 2832 wrote to memory of 1548	2832	csrsll.exe	93
PID 2832 wrote to memory of 1548	2832	csrsll.exe	93
PID 2832 wrote to memory of 1548	2832	csrsll.exe	93
PID 2832 wrote to memory of 4504	2832	csrsll.exe	94
PID 2832 wrote to memory of 4504	2832	csrsll.exe	94
PID 2832 wrote to memory of 4504	2832	csrsll.exe	94
PID 2832 wrote to memory of 4504	2832	csrsll.exe	94
PID 2832 wrote to memory of 4504	2832	csrsll.exe	94
PID 2832 wrote to memory of 4504	2832	csrsll.exe	94
PID 2832 wrote to memory of 4504	2832	csrsll.exe	94
PID 2832 wrote to memory of 4504	2832	csrsll.exe	94

C:\Users\Admin\AppData\Local\Temp\c4a09dd0c32b6efe3a64408f345c1865083411712396dfe68dbabd7a932f75beN.exe
"C:\Users\Admin\AppData\Local\Temp\c4a09dd0c32b6efe3a64408f345c1865083411712396dfe68dbabd7a932f75beN.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3380
- C:\Users\Admin\AppData\Local\Temp\c4a09dd0c32b6efe3a64408f345c1865083411712396dfe68dbabd7a932f75beN.exe
  "C:\Users\Admin\AppData\Local\Temp\c4a09dd0c32b6efe3a64408f345c1865083411712396dfe68dbabd7a932f75beN.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4488
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\NMHQX.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:904
  - - 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:544
- - 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:2832
  - - 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:1548
  - - 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:4504

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\NMHQX.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
18768ebcf03635da1f0df672526167fc

SHA1
8b781c51336c206d84f8102596ccdf01d78b8a9d

SHA256
d9c1869ea35294bd33e347ff5899c8b487f83ca18b7c7a3c20aecb3805011c78

SHA512
4cac262ab5e0d6334b93009d009e583e0ca1bbd54d05ca4234d665cc8d832ecd5ecccf9fe623eeecba11dd0d3c5057f0f4427dd70d3d9e89f54b81b9675a5281

Download Submit
memory/1548-63-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2832-56-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2832-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2832-51-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2832-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2832-36-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3380-4-0x0000000002310000-0x0000000002312000-memory.dmp

Filesize
8KB

Download
memory/3380-12-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3380-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3380-6-0x0000000002330000-0x0000000002332000-memory.dmp

Filesize
8KB

Download
memory/3380-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3380-3-0x0000000002300000-0x0000000002302000-memory.dmp

Filesize
8KB

Download
memory/4488-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4488-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4488-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4488-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4488-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4504-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4504-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4504-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4504-59-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4504-58-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4504-64-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads