modiloader | a994ea8dff8cf67b1bfda746d785b1205b8bef9f67735a1f1d418360cfd3cd7e

Analysis

max time kernel
119s
max time network
117s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
08-01-2025 18:48

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General

Target

a994ea8dff8cf67b1bfda746d785b1205b8bef9f67735a1f1d418360cfd3cd7eN.exe
Size

90KB
MD5

f59dc9da826236ebaa8ddd7ac3ec6060
SHA1

d89ca5755f3229daa89ba85972420cb98f3f4419
SHA256

a994ea8dff8cf67b1bfda746d785b1205b8bef9f67735a1f1d418360cfd3cd7e
SHA512

18f4ac8dd5ec221224740a242959579c90627ceb0721b3f4396bd92e8415363bb4b9655511f32c4335cfe235ca35c3ac8d5ebb63132cb909885451c438c40e14
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDV:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3P

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/116-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/116-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/116-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/116-62-0x0000000000400000-0x0000000000414000-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-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	a994ea8dff8cf67b1bfda746d785b1205b8bef9f67735a1f1d418360cfd3cd7eN.exe

Executes dropped EXE 3 IoCs

pid	Process
1972	csrsll.exe
588	csrsll.exe
116	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-1-5-21-940901362-3608833189-1915618603-1000\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 1700 set thread context of 2264	1700	a994ea8dff8cf67b1bfda746d785b1205b8bef9f67735a1f1d418360cfd3cd7eN.exe	83
PID 1972 set thread context of 588	1972	csrsll.exe	97
PID 1972 set thread context of 116	1972	csrsll.exe	98

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1700-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1700-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2264-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2264-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1700-13-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2264-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000b000000023b9b-29.dat	upx
behavioral2/memory/2264-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1972-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1972-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/116-44-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/116-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/116-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/116-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1972-57-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/116-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2264-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/588-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/116-62-0x0000000000400000-0x0000000000414000-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	a994ea8dff8cf67b1bfda746d785b1205b8bef9f67735a1f1d418360cfd3cd7eN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a994ea8dff8cf67b1bfda746d785b1205b8bef9f67735a1f1d418360cfd3cd7eN.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

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	588	csrsll.exe
Token: SeDebugPrivilege	588	csrsll.exe
Token: SeDebugPrivilege	588	csrsll.exe
Token: SeDebugPrivilege	588	csrsll.exe
Token: SeDebugPrivilege	588	csrsll.exe
Token: SeDebugPrivilege	588	csrsll.exe
Token: SeDebugPrivilege	588	csrsll.exe
Token: SeDebugPrivilege	588	csrsll.exe
Token: SeDebugPrivilege	588	csrsll.exe
Token: SeDebugPrivilege	588	csrsll.exe
Token: SeDebugPrivilege	588	csrsll.exe
Token: SeDebugPrivilege	588	csrsll.exe
Token: SeDebugPrivilege	588	csrsll.exe
Token: SeDebugPrivilege	588	csrsll.exe
Token: SeDebugPrivilege	588	csrsll.exe
Token: SeDebugPrivilege	588	csrsll.exe
Token: SeDebugPrivilege	588	csrsll.exe
Token: SeDebugPrivilege	588	csrsll.exe
Token: SeDebugPrivilege	588	csrsll.exe
Token: SeDebugPrivilege	588	csrsll.exe
Token: SeDebugPrivilege	588	csrsll.exe
Token: SeDebugPrivilege	588	csrsll.exe
Token: SeDebugPrivilege	588	csrsll.exe
Token: SeDebugPrivilege	588	csrsll.exe
Token: SeDebugPrivilege	588	csrsll.exe
Token: SeDebugPrivilege	588	csrsll.exe
Token: SeDebugPrivilege	588	csrsll.exe
Token: SeDebugPrivilege	588	csrsll.exe
Token: SeDebugPrivilege	588	csrsll.exe
Token: SeDebugPrivilege	588	csrsll.exe
Token: SeDebugPrivilege	588	csrsll.exe
Token: SeDebugPrivilege	588	csrsll.exe
Token: SeDebugPrivilege	588	csrsll.exe
Token: SeDebugPrivilege	588	csrsll.exe
Token: SeDebugPrivilege	588	csrsll.exe
Token: SeDebugPrivilege	588	csrsll.exe
Token: SeDebugPrivilege	588	csrsll.exe
Token: SeDebugPrivilege	588	csrsll.exe
Token: SeDebugPrivilege	588	csrsll.exe
Token: SeDebugPrivilege	588	csrsll.exe
Token: SeDebugPrivilege	588	csrsll.exe
Token: SeDebugPrivilege	588	csrsll.exe
Token: SeDebugPrivilege	588	csrsll.exe
Token: SeDebugPrivilege	588	csrsll.exe
Token: SeDebugPrivilege	588	csrsll.exe
Token: SeDebugPrivilege	588	csrsll.exe
Token: SeDebugPrivilege	588	csrsll.exe
Token: SeDebugPrivilege	588	csrsll.exe
Token: SeDebugPrivilege	588	csrsll.exe
Token: SeDebugPrivilege	588	csrsll.exe
Token: SeDebugPrivilege	588	csrsll.exe
Token: SeDebugPrivilege	588	csrsll.exe
Token: SeDebugPrivilege	588	csrsll.exe
Token: SeDebugPrivilege	588	csrsll.exe
Token: SeDebugPrivilege	588	csrsll.exe
Token: SeDebugPrivilege	588	csrsll.exe
Token: SeDebugPrivilege	588	csrsll.exe
Token: SeDebugPrivilege	588	csrsll.exe
Token: SeDebugPrivilege	588	csrsll.exe
Token: SeDebugPrivilege	588	csrsll.exe
Token: SeDebugPrivilege	588	csrsll.exe
Token: SeDebugPrivilege	588	csrsll.exe
Token: SeDebugPrivilege	588	csrsll.exe
Token: SeDebugPrivilege	588	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1700	a994ea8dff8cf67b1bfda746d785b1205b8bef9f67735a1f1d418360cfd3cd7eN.exe
2264	a994ea8dff8cf67b1bfda746d785b1205b8bef9f67735a1f1d418360cfd3cd7eN.exe
1972	csrsll.exe
588	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 1700 wrote to memory of 2264	1700	a994ea8dff8cf67b1bfda746d785b1205b8bef9f67735a1f1d418360cfd3cd7eN.exe	83
PID 1700 wrote to memory of 2264	1700	a994ea8dff8cf67b1bfda746d785b1205b8bef9f67735a1f1d418360cfd3cd7eN.exe	83
PID 1700 wrote to memory of 2264	1700	a994ea8dff8cf67b1bfda746d785b1205b8bef9f67735a1f1d418360cfd3cd7eN.exe	83
PID 1700 wrote to memory of 2264	1700	a994ea8dff8cf67b1bfda746d785b1205b8bef9f67735a1f1d418360cfd3cd7eN.exe	83
PID 1700 wrote to memory of 2264	1700	a994ea8dff8cf67b1bfda746d785b1205b8bef9f67735a1f1d418360cfd3cd7eN.exe	83
PID 1700 wrote to memory of 2264	1700	a994ea8dff8cf67b1bfda746d785b1205b8bef9f67735a1f1d418360cfd3cd7eN.exe	83
PID 1700 wrote to memory of 2264	1700	a994ea8dff8cf67b1bfda746d785b1205b8bef9f67735a1f1d418360cfd3cd7eN.exe	83
PID 1700 wrote to memory of 2264	1700	a994ea8dff8cf67b1bfda746d785b1205b8bef9f67735a1f1d418360cfd3cd7eN.exe	83
PID 2264 wrote to memory of 5052	2264	a994ea8dff8cf67b1bfda746d785b1205b8bef9f67735a1f1d418360cfd3cd7eN.exe	84
PID 2264 wrote to memory of 5052	2264	a994ea8dff8cf67b1bfda746d785b1205b8bef9f67735a1f1d418360cfd3cd7eN.exe	84
PID 2264 wrote to memory of 5052	2264	a994ea8dff8cf67b1bfda746d785b1205b8bef9f67735a1f1d418360cfd3cd7eN.exe	84
PID 5052 wrote to memory of 2056	5052	cmd.exe	88
PID 5052 wrote to memory of 2056	5052	cmd.exe	88
PID 5052 wrote to memory of 2056	5052	cmd.exe	88
PID 2264 wrote to memory of 1972	2264	a994ea8dff8cf67b1bfda746d785b1205b8bef9f67735a1f1d418360cfd3cd7eN.exe	89
PID 2264 wrote to memory of 1972	2264	a994ea8dff8cf67b1bfda746d785b1205b8bef9f67735a1f1d418360cfd3cd7eN.exe	89
PID 2264 wrote to memory of 1972	2264	a994ea8dff8cf67b1bfda746d785b1205b8bef9f67735a1f1d418360cfd3cd7eN.exe	89
PID 1972 wrote to memory of 588	1972	csrsll.exe	97
PID 1972 wrote to memory of 588	1972	csrsll.exe	97
PID 1972 wrote to memory of 588	1972	csrsll.exe	97
PID 1972 wrote to memory of 588	1972	csrsll.exe	97
PID 1972 wrote to memory of 588	1972	csrsll.exe	97
PID 1972 wrote to memory of 588	1972	csrsll.exe	97
PID 1972 wrote to memory of 588	1972	csrsll.exe	97
PID 1972 wrote to memory of 588	1972	csrsll.exe	97
PID 1972 wrote to memory of 116	1972	csrsll.exe	98
PID 1972 wrote to memory of 116	1972	csrsll.exe	98
PID 1972 wrote to memory of 116	1972	csrsll.exe	98
PID 1972 wrote to memory of 116	1972	csrsll.exe	98
PID 1972 wrote to memory of 116	1972	csrsll.exe	98
PID 1972 wrote to memory of 116	1972	csrsll.exe	98
PID 1972 wrote to memory of 116	1972	csrsll.exe	98
PID 1972 wrote to memory of 116	1972	csrsll.exe	98

C:\Users\Admin\AppData\Local\Temp\a994ea8dff8cf67b1bfda746d785b1205b8bef9f67735a1f1d418360cfd3cd7eN.exe
"C:\Users\Admin\AppData\Local\Temp\a994ea8dff8cf67b1bfda746d785b1205b8bef9f67735a1f1d418360cfd3cd7eN.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1700
- C:\Users\Admin\AppData\Local\Temp\a994ea8dff8cf67b1bfda746d785b1205b8bef9f67735a1f1d418360cfd3cd7eN.exe
  "C:\Users\Admin\AppData\Local\Temp\a994ea8dff8cf67b1bfda746d785b1205b8bef9f67735a1f1d418360cfd3cd7eN.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2264
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\RVHIF.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:5052
  - - 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:2056
- - 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:1972
  - - 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:588
  - - 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:116

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\RVHIF.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
67b19a496e2c4f39d7d1a1d7e0dfaf8b

SHA1
bdbd4516e87eab2362bbb77fc5f6eea61129b679

SHA256
bad7ed914e3092080676840bce11b5b0c6d2ed0df72aa1ec7f30442eaa1b7ca9

SHA512
b4119f16c9dd6c6e635a96a0174ef11a4ce65e33d9bb6e09f572f8385feb78005547313de6e83be09950c2fbfb40715b1ddb2a81a3d22dcde7a25a6523d02a21

Download Submit
memory/116-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/116-44-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/116-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/116-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/116-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/116-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/588-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1700-13-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1700-6-0x0000000002320000-0x0000000002322000-memory.dmp

Filesize
8KB

Download
memory/1700-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1700-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1700-4-0x0000000002300000-0x0000000002302000-memory.dmp

Filesize
8KB

Download
memory/1700-3-0x00000000022F0000-0x00000000022F2000-memory.dmp

Filesize
8KB

Download
memory/1972-57-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1972-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1972-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2264-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2264-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2264-58-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/2264-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2264-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2264-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads