modiloader | 4414832b00ba65909713df22e4bbcbb41f7d6244027f972ded91ba9d423385b3

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
02-12-2024 20:17

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General

Target

4414832b00ba65909713df22e4bbcbb41f7d6244027f972ded91ba9d423385b3.exe
Size

90KB
MD5

0ace13e67ef6ef1d8abaf62db0a26a10
SHA1

43a62e88488c33ade349eea20c6be931f0fefdf8
SHA256

4414832b00ba65909713df22e4bbcbb41f7d6244027f972ded91ba9d423385b3
SHA512

2c5f9d51659f275f2ec106f5095552249393c66a477532fd8e5044e89a43e7d682fb0e4057a7d4efcb0411fdd6e4b5b30c47f49e448c610adffdd1204809f228
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDF:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3X

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/4044-57-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4044-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4044-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4044-62-0x0000000000400000-0x0000000000414000-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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	4414832b00ba65909713df22e4bbcbb41f7d6244027f972ded91ba9d423385b3.exe

Executes dropped EXE 3 IoCs

pid	Process
4616	csrsll.exe
860	csrsll.exe
4044	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-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Win Pdf = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\csrsll.exe"	reg.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 872 set thread context of 3432	872	4414832b00ba65909713df22e4bbcbb41f7d6244027f972ded91ba9d423385b3.exe	83
PID 4616 set thread context of 860	4616	csrsll.exe	100
PID 4616 set thread context of 4044	4616	csrsll.exe	101

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/872-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/872-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3432-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/872-12-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3432-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3432-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0008000000023c72-29.dat	upx
behavioral2/memory/3432-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4616-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4616-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4044-45-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4044-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4044-57-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4044-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4044-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4616-53-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3432-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/860-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4044-62-0x0000000000400000-0x0000000000414000-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	4414832b00ba65909713df22e4bbcbb41f7d6244027f972ded91ba9d423385b3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4414832b00ba65909713df22e4bbcbb41f7d6244027f972ded91ba9d423385b3.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	860	csrsll.exe
Token: SeDebugPrivilege	860	csrsll.exe
Token: SeDebugPrivilege	860	csrsll.exe
Token: SeDebugPrivilege	860	csrsll.exe
Token: SeDebugPrivilege	860	csrsll.exe
Token: SeDebugPrivilege	860	csrsll.exe
Token: SeDebugPrivilege	860	csrsll.exe
Token: SeDebugPrivilege	860	csrsll.exe
Token: SeDebugPrivilege	860	csrsll.exe
Token: SeDebugPrivilege	860	csrsll.exe
Token: SeDebugPrivilege	860	csrsll.exe
Token: SeDebugPrivilege	860	csrsll.exe
Token: SeDebugPrivilege	860	csrsll.exe
Token: SeDebugPrivilege	860	csrsll.exe
Token: SeDebugPrivilege	860	csrsll.exe
Token: SeDebugPrivilege	860	csrsll.exe
Token: SeDebugPrivilege	860	csrsll.exe
Token: SeDebugPrivilege	860	csrsll.exe
Token: SeDebugPrivilege	860	csrsll.exe
Token: SeDebugPrivilege	860	csrsll.exe
Token: SeDebugPrivilege	860	csrsll.exe
Token: SeDebugPrivilege	860	csrsll.exe
Token: SeDebugPrivilege	860	csrsll.exe
Token: SeDebugPrivilege	860	csrsll.exe
Token: SeDebugPrivilege	860	csrsll.exe
Token: SeDebugPrivilege	860	csrsll.exe
Token: SeDebugPrivilege	860	csrsll.exe
Token: SeDebugPrivilege	860	csrsll.exe
Token: SeDebugPrivilege	860	csrsll.exe
Token: SeDebugPrivilege	860	csrsll.exe
Token: SeDebugPrivilege	860	csrsll.exe
Token: SeDebugPrivilege	860	csrsll.exe
Token: SeDebugPrivilege	860	csrsll.exe
Token: SeDebugPrivilege	860	csrsll.exe
Token: SeDebugPrivilege	860	csrsll.exe
Token: SeDebugPrivilege	860	csrsll.exe
Token: SeDebugPrivilege	860	csrsll.exe
Token: SeDebugPrivilege	860	csrsll.exe
Token: SeDebugPrivilege	860	csrsll.exe
Token: SeDebugPrivilege	860	csrsll.exe
Token: SeDebugPrivilege	860	csrsll.exe
Token: SeDebugPrivilege	860	csrsll.exe
Token: SeDebugPrivilege	860	csrsll.exe
Token: SeDebugPrivilege	860	csrsll.exe
Token: SeDebugPrivilege	860	csrsll.exe
Token: SeDebugPrivilege	860	csrsll.exe
Token: SeDebugPrivilege	860	csrsll.exe
Token: SeDebugPrivilege	860	csrsll.exe
Token: SeDebugPrivilege	860	csrsll.exe
Token: SeDebugPrivilege	860	csrsll.exe
Token: SeDebugPrivilege	860	csrsll.exe
Token: SeDebugPrivilege	860	csrsll.exe
Token: SeDebugPrivilege	860	csrsll.exe
Token: SeDebugPrivilege	860	csrsll.exe
Token: SeDebugPrivilege	860	csrsll.exe
Token: SeDebugPrivilege	860	csrsll.exe
Token: SeDebugPrivilege	860	csrsll.exe
Token: SeDebugPrivilege	860	csrsll.exe
Token: SeDebugPrivilege	860	csrsll.exe
Token: SeDebugPrivilege	860	csrsll.exe
Token: SeDebugPrivilege	860	csrsll.exe
Token: SeDebugPrivilege	860	csrsll.exe
Token: SeDebugPrivilege	860	csrsll.exe
Token: SeDebugPrivilege	860	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
872	4414832b00ba65909713df22e4bbcbb41f7d6244027f972ded91ba9d423385b3.exe
3432	4414832b00ba65909713df22e4bbcbb41f7d6244027f972ded91ba9d423385b3.exe
4616	csrsll.exe
860	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 872 wrote to memory of 3432	872	4414832b00ba65909713df22e4bbcbb41f7d6244027f972ded91ba9d423385b3.exe	83
PID 872 wrote to memory of 3432	872	4414832b00ba65909713df22e4bbcbb41f7d6244027f972ded91ba9d423385b3.exe	83
PID 872 wrote to memory of 3432	872	4414832b00ba65909713df22e4bbcbb41f7d6244027f972ded91ba9d423385b3.exe	83
PID 872 wrote to memory of 3432	872	4414832b00ba65909713df22e4bbcbb41f7d6244027f972ded91ba9d423385b3.exe	83
PID 872 wrote to memory of 3432	872	4414832b00ba65909713df22e4bbcbb41f7d6244027f972ded91ba9d423385b3.exe	83
PID 872 wrote to memory of 3432	872	4414832b00ba65909713df22e4bbcbb41f7d6244027f972ded91ba9d423385b3.exe	83
PID 872 wrote to memory of 3432	872	4414832b00ba65909713df22e4bbcbb41f7d6244027f972ded91ba9d423385b3.exe	83
PID 872 wrote to memory of 3432	872	4414832b00ba65909713df22e4bbcbb41f7d6244027f972ded91ba9d423385b3.exe	83
PID 3432 wrote to memory of 3100	3432	4414832b00ba65909713df22e4bbcbb41f7d6244027f972ded91ba9d423385b3.exe	89
PID 3432 wrote to memory of 3100	3432	4414832b00ba65909713df22e4bbcbb41f7d6244027f972ded91ba9d423385b3.exe	89
PID 3432 wrote to memory of 3100	3432	4414832b00ba65909713df22e4bbcbb41f7d6244027f972ded91ba9d423385b3.exe	89
PID 3100 wrote to memory of 1880	3100	cmd.exe	92
PID 3100 wrote to memory of 1880	3100	cmd.exe	92
PID 3100 wrote to memory of 1880	3100	cmd.exe	92
PID 3432 wrote to memory of 4616	3432	4414832b00ba65909713df22e4bbcbb41f7d6244027f972ded91ba9d423385b3.exe	93
PID 3432 wrote to memory of 4616	3432	4414832b00ba65909713df22e4bbcbb41f7d6244027f972ded91ba9d423385b3.exe	93
PID 3432 wrote to memory of 4616	3432	4414832b00ba65909713df22e4bbcbb41f7d6244027f972ded91ba9d423385b3.exe	93
PID 4616 wrote to memory of 860	4616	csrsll.exe	100
PID 4616 wrote to memory of 860	4616	csrsll.exe	100
PID 4616 wrote to memory of 860	4616	csrsll.exe	100
PID 4616 wrote to memory of 860	4616	csrsll.exe	100
PID 4616 wrote to memory of 860	4616	csrsll.exe	100
PID 4616 wrote to memory of 860	4616	csrsll.exe	100
PID 4616 wrote to memory of 860	4616	csrsll.exe	100
PID 4616 wrote to memory of 860	4616	csrsll.exe	100
PID 4616 wrote to memory of 4044	4616	csrsll.exe	101
PID 4616 wrote to memory of 4044	4616	csrsll.exe	101
PID 4616 wrote to memory of 4044	4616	csrsll.exe	101
PID 4616 wrote to memory of 4044	4616	csrsll.exe	101
PID 4616 wrote to memory of 4044	4616	csrsll.exe	101
PID 4616 wrote to memory of 4044	4616	csrsll.exe	101
PID 4616 wrote to memory of 4044	4616	csrsll.exe	101
PID 4616 wrote to memory of 4044	4616	csrsll.exe	101

C:\Users\Admin\AppData\Local\Temp\4414832b00ba65909713df22e4bbcbb41f7d6244027f972ded91ba9d423385b3.exe
"C:\Users\Admin\AppData\Local\Temp\4414832b00ba65909713df22e4bbcbb41f7d6244027f972ded91ba9d423385b3.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:872
- C:\Users\Admin\AppData\Local\Temp\4414832b00ba65909713df22e4bbcbb41f7d6244027f972ded91ba9d423385b3.exe
  "C:\Users\Admin\AppData\Local\Temp\4414832b00ba65909713df22e4bbcbb41f7d6244027f972ded91ba9d423385b3.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3432
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\YMKIN.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3100
  - - 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:1880
- - 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:4616
  - - 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:860
  - - 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:4044

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\YMKIN.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
816d7da2251eda8521584d2a5c8c7b5d

SHA1
a51cc00f61f13ed1def2ad5e093d11f157945985

SHA256
3ce155172880fcdbf7ea3f257672ed3d02436b5eed9d30e6bfc0f7cbcbcd3ed8

SHA512
4eabf76f1a683127b3b36c5c0bed11d8813455f16444e726b99d2e90687c5cd6de99162b6a6e76e41f1dd282c1eb7772464cba83bb79c9f059b00cdf82358013

Download Submit
memory/860-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/872-6-0x0000000002440000-0x0000000002442000-memory.dmp

Filesize
8KB

Download
memory/872-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/872-12-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/872-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/872-4-0x0000000002410000-0x0000000002412000-memory.dmp

Filesize
8KB

Download
memory/872-3-0x00000000022F0000-0x00000000022F2000-memory.dmp

Filesize
8KB

Download
memory/3432-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3432-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3432-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3432-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3432-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3432-58-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/4044-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4044-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4044-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4044-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4044-45-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4044-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4616-53-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4616-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4616-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads