modiloader | e4f094f86860ba1291022dc72c0b89b58358e4b21a8056ba4e3e29d4ac4a310c

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
05-11-2024 05:02

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General

Target

e4f094f86860ba1291022dc72c0b89b58358e4b21a8056ba4e3e29d4ac4a310c.exe
Size

90KB
MD5

2ecd438b2e325e5ca85c6ae6eebc8001
SHA1

edf03368e7969e875aae82cbb6bade860dd8619a
SHA256

e4f094f86860ba1291022dc72c0b89b58358e4b21a8056ba4e3e29d4ac4a310c
SHA512

71732b91e0a1b0cf2ff022de11d2d001afade060d7122efc0c1fd10129ed14cf14e361e053a90969f7113134b1b8607d2bb89b322eafedb99438ef1b242b8e1e
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

Processes:

resource	yara_rule
behavioral2/memory/5072-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/5072-57-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/5072-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/5072-62-0x0000000000400000-0x0000000000414000-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

Processes:

e4f094f86860ba1291022dc72c0b89b58358e4b21a8056ba4e3e29d4ac4a310c.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	e4f094f86860ba1291022dc72c0b89b58358e4b21a8056ba4e3e29d4ac4a310c.exe

Executes dropped EXE 3 IoCs

Processes:

csrsll.execsrsll.execsrsll.exe

pid	Process
2196	csrsll.exe
2784	csrsll.exe
5072	csrsll.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

reg.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Win Pdf = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\csrsll.exe"	reg.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

e4f094f86860ba1291022dc72c0b89b58358e4b21a8056ba4e3e29d4ac4a310c.execsrsll.exe

description	pid	Process	procid_target
PID 736 set thread context of 3824	736	e4f094f86860ba1291022dc72c0b89b58358e4b21a8056ba4e3e29d4ac4a310c.exe	93
PID 2196 set thread context of 2784	2196	csrsll.exe	104
PID 2196 set thread context of 5072	2196	csrsll.exe	105

UPX packed file 20 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/736-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/736-4-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/736-12-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3824-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3824-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3824-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000b000000023b8f-28.dat	upx
behavioral2/memory/2196-35-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3824-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2196-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2196-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/5072-46-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/5072-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2196-55-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/5072-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/5072-57-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/5072-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3824-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2784-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/5072-62-0x0000000000400000-0x0000000000414000-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

Processes:

e4f094f86860ba1291022dc72c0b89b58358e4b21a8056ba4e3e29d4ac4a310c.exee4f094f86860ba1291022dc72c0b89b58358e4b21a8056ba4e3e29d4ac4a310c.execmd.exereg.execsrsll.execsrsll.execsrsll.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e4f094f86860ba1291022dc72c0b89b58358e4b21a8056ba4e3e29d4ac4a310c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e4f094f86860ba1291022dc72c0b89b58358e4b21a8056ba4e3e29d4ac4a310c.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

Processes:

csrsll.exe

description	pid	Process
Token: SeDebugPrivilege	2784	csrsll.exe
Token: SeDebugPrivilege	2784	csrsll.exe
Token: SeDebugPrivilege	2784	csrsll.exe
Token: SeDebugPrivilege	2784	csrsll.exe
Token: SeDebugPrivilege	2784	csrsll.exe
Token: SeDebugPrivilege	2784	csrsll.exe
Token: SeDebugPrivilege	2784	csrsll.exe
Token: SeDebugPrivilege	2784	csrsll.exe
Token: SeDebugPrivilege	2784	csrsll.exe
Token: SeDebugPrivilege	2784	csrsll.exe
Token: SeDebugPrivilege	2784	csrsll.exe
Token: SeDebugPrivilege	2784	csrsll.exe
Token: SeDebugPrivilege	2784	csrsll.exe
Token: SeDebugPrivilege	2784	csrsll.exe
Token: SeDebugPrivilege	2784	csrsll.exe
Token: SeDebugPrivilege	2784	csrsll.exe
Token: SeDebugPrivilege	2784	csrsll.exe
Token: SeDebugPrivilege	2784	csrsll.exe
Token: SeDebugPrivilege	2784	csrsll.exe
Token: SeDebugPrivilege	2784	csrsll.exe
Token: SeDebugPrivilege	2784	csrsll.exe
Token: SeDebugPrivilege	2784	csrsll.exe
Token: SeDebugPrivilege	2784	csrsll.exe
Token: SeDebugPrivilege	2784	csrsll.exe
Token: SeDebugPrivilege	2784	csrsll.exe
Token: SeDebugPrivilege	2784	csrsll.exe
Token: SeDebugPrivilege	2784	csrsll.exe
Token: SeDebugPrivilege	2784	csrsll.exe
Token: SeDebugPrivilege	2784	csrsll.exe
Token: SeDebugPrivilege	2784	csrsll.exe
Token: SeDebugPrivilege	2784	csrsll.exe
Token: SeDebugPrivilege	2784	csrsll.exe
Token: SeDebugPrivilege	2784	csrsll.exe
Token: SeDebugPrivilege	2784	csrsll.exe
Token: SeDebugPrivilege	2784	csrsll.exe
Token: SeDebugPrivilege	2784	csrsll.exe
Token: SeDebugPrivilege	2784	csrsll.exe
Token: SeDebugPrivilege	2784	csrsll.exe
Token: SeDebugPrivilege	2784	csrsll.exe
Token: SeDebugPrivilege	2784	csrsll.exe
Token: SeDebugPrivilege	2784	csrsll.exe
Token: SeDebugPrivilege	2784	csrsll.exe
Token: SeDebugPrivilege	2784	csrsll.exe
Token: SeDebugPrivilege	2784	csrsll.exe
Token: SeDebugPrivilege	2784	csrsll.exe
Token: SeDebugPrivilege	2784	csrsll.exe
Token: SeDebugPrivilege	2784	csrsll.exe
Token: SeDebugPrivilege	2784	csrsll.exe
Token: SeDebugPrivilege	2784	csrsll.exe
Token: SeDebugPrivilege	2784	csrsll.exe
Token: SeDebugPrivilege	2784	csrsll.exe
Token: SeDebugPrivilege	2784	csrsll.exe
Token: SeDebugPrivilege	2784	csrsll.exe
Token: SeDebugPrivilege	2784	csrsll.exe
Token: SeDebugPrivilege	2784	csrsll.exe
Token: SeDebugPrivilege	2784	csrsll.exe
Token: SeDebugPrivilege	2784	csrsll.exe
Token: SeDebugPrivilege	2784	csrsll.exe
Token: SeDebugPrivilege	2784	csrsll.exe
Token: SeDebugPrivilege	2784	csrsll.exe
Token: SeDebugPrivilege	2784	csrsll.exe
Token: SeDebugPrivilege	2784	csrsll.exe
Token: SeDebugPrivilege	2784	csrsll.exe
Token: SeDebugPrivilege	2784	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

Processes:

e4f094f86860ba1291022dc72c0b89b58358e4b21a8056ba4e3e29d4ac4a310c.exee4f094f86860ba1291022dc72c0b89b58358e4b21a8056ba4e3e29d4ac4a310c.execsrsll.execsrsll.exe

pid	Process
736	e4f094f86860ba1291022dc72c0b89b58358e4b21a8056ba4e3e29d4ac4a310c.exe
3824	e4f094f86860ba1291022dc72c0b89b58358e4b21a8056ba4e3e29d4ac4a310c.exe
2196	csrsll.exe
2784	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

Processes:

e4f094f86860ba1291022dc72c0b89b58358e4b21a8056ba4e3e29d4ac4a310c.exee4f094f86860ba1291022dc72c0b89b58358e4b21a8056ba4e3e29d4ac4a310c.execmd.execsrsll.exe

description	pid	Process	procid_target
PID 736 wrote to memory of 3824	736	e4f094f86860ba1291022dc72c0b89b58358e4b21a8056ba4e3e29d4ac4a310c.exe	93
PID 736 wrote to memory of 3824	736	e4f094f86860ba1291022dc72c0b89b58358e4b21a8056ba4e3e29d4ac4a310c.exe	93
PID 736 wrote to memory of 3824	736	e4f094f86860ba1291022dc72c0b89b58358e4b21a8056ba4e3e29d4ac4a310c.exe	93
PID 736 wrote to memory of 3824	736	e4f094f86860ba1291022dc72c0b89b58358e4b21a8056ba4e3e29d4ac4a310c.exe	93
PID 736 wrote to memory of 3824	736	e4f094f86860ba1291022dc72c0b89b58358e4b21a8056ba4e3e29d4ac4a310c.exe	93
PID 736 wrote to memory of 3824	736	e4f094f86860ba1291022dc72c0b89b58358e4b21a8056ba4e3e29d4ac4a310c.exe	93
PID 736 wrote to memory of 3824	736	e4f094f86860ba1291022dc72c0b89b58358e4b21a8056ba4e3e29d4ac4a310c.exe	93
PID 736 wrote to memory of 3824	736	e4f094f86860ba1291022dc72c0b89b58358e4b21a8056ba4e3e29d4ac4a310c.exe	93
PID 3824 wrote to memory of 4920	3824	e4f094f86860ba1291022dc72c0b89b58358e4b21a8056ba4e3e29d4ac4a310c.exe	98
PID 3824 wrote to memory of 4920	3824	e4f094f86860ba1291022dc72c0b89b58358e4b21a8056ba4e3e29d4ac4a310c.exe	98
PID 3824 wrote to memory of 4920	3824	e4f094f86860ba1291022dc72c0b89b58358e4b21a8056ba4e3e29d4ac4a310c.exe	98
PID 4920 wrote to memory of 1620	4920	cmd.exe	102
PID 4920 wrote to memory of 1620	4920	cmd.exe	102
PID 4920 wrote to memory of 1620	4920	cmd.exe	102
PID 3824 wrote to memory of 2196	3824	e4f094f86860ba1291022dc72c0b89b58358e4b21a8056ba4e3e29d4ac4a310c.exe	103
PID 3824 wrote to memory of 2196	3824	e4f094f86860ba1291022dc72c0b89b58358e4b21a8056ba4e3e29d4ac4a310c.exe	103
PID 3824 wrote to memory of 2196	3824	e4f094f86860ba1291022dc72c0b89b58358e4b21a8056ba4e3e29d4ac4a310c.exe	103
PID 2196 wrote to memory of 2784	2196	csrsll.exe	104
PID 2196 wrote to memory of 2784	2196	csrsll.exe	104
PID 2196 wrote to memory of 2784	2196	csrsll.exe	104
PID 2196 wrote to memory of 2784	2196	csrsll.exe	104
PID 2196 wrote to memory of 2784	2196	csrsll.exe	104
PID 2196 wrote to memory of 2784	2196	csrsll.exe	104
PID 2196 wrote to memory of 2784	2196	csrsll.exe	104
PID 2196 wrote to memory of 2784	2196	csrsll.exe	104
PID 2196 wrote to memory of 5072	2196	csrsll.exe	105
PID 2196 wrote to memory of 5072	2196	csrsll.exe	105
PID 2196 wrote to memory of 5072	2196	csrsll.exe	105
PID 2196 wrote to memory of 5072	2196	csrsll.exe	105
PID 2196 wrote to memory of 5072	2196	csrsll.exe	105
PID 2196 wrote to memory of 5072	2196	csrsll.exe	105
PID 2196 wrote to memory of 5072	2196	csrsll.exe	105
PID 2196 wrote to memory of 5072	2196	csrsll.exe	105

C:\Users\Admin\AppData\Local\Temp\e4f094f86860ba1291022dc72c0b89b58358e4b21a8056ba4e3e29d4ac4a310c.exe
"C:\Users\Admin\AppData\Local\Temp\e4f094f86860ba1291022dc72c0b89b58358e4b21a8056ba4e3e29d4ac4a310c.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:736
- C:\Users\Admin\AppData\Local\Temp\e4f094f86860ba1291022dc72c0b89b58358e4b21a8056ba4e3e29d4ac4a310c.exe
  "C:\Users\Admin\AppData\Local\Temp\e4f094f86860ba1291022dc72c0b89b58358e4b21a8056ba4e3e29d4ac4a310c.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3824
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\DTURA.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4920
  - - 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:1620
- - 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:2196
  - - 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:2784
  - - 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:5072

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

Replay Monitor

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Downloads

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

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
6eed73545382f4b8d8651ea3d4dce21a

SHA1
502dbd7db31152ef04f933bf70d43ba5485b1bca

SHA256
23148c69622c9f32f8af482c8bec94f8a2ab68663fe7c41e020c81a426001565

SHA512
86c5f625cc27bcd02af091ae6362178fb4aa45cecd906756ab3ea21c976e38765634022334d9c66d176e6da83b9706e7a0b1eef9efc5e97e8094124b17924e11

Download Submit
memory/736-4-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/736-6-0x0000000002B90000-0x0000000002B92000-memory.dmp

Filesize
8KB

Download
memory/736-12-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/736-5-0x0000000002B80000-0x0000000002B82000-memory.dmp

Filesize
8KB

Download
memory/736-3-0x0000000002300000-0x0000000002302000-memory.dmp

Filesize
8KB

Download
memory/736-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2196-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2196-55-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2196-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2196-35-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2784-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3824-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3824-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3824-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3824-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3824-58-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/3824-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/5072-46-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/5072-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/5072-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/5072-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/5072-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/5072-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download