modiloader | ae8db847b2d81587fb2f5f6d6bf6ee7d98b3f9639c08949d694d8add6c8d239a

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
07-01-2025 06:41

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General

Target

ae8db847b2d81587fb2f5f6d6bf6ee7d98b3f9639c08949d694d8add6c8d239a.exe
Size

90KB
MD5

cd39794a59066a3983bc2ddb167bb8a1
SHA1

fc533e432e4feb04c8fcd5daff7e6d75e8984493
SHA256

ae8db847b2d81587fb2f5f6d6bf6ee7d98b3f9639c08949d694d8add6c8d239a
SHA512

ff9a0550f4ea7db6c4999be06468303c651b3413fcbad47642235b8e3b5a84f1e41c175d856122d1fd73ddfec69962fa6f31313250a908bf2da2d4e04036cdec
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDc:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3+

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/4396-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4396-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4396-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4396-63-0x0000000000400000-0x0000000000414000-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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	ae8db847b2d81587fb2f5f6d6bf6ee7d98b3f9639c08949d694d8add6c8d239a.exe

Executes dropped EXE 3 IoCs

pid	Process
2696	csrsll.exe
1632	csrsll.exe
4396	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-1-5-21-3756129449-3121373848-4276368241-1000\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 4808 set thread context of 3512	4808	ae8db847b2d81587fb2f5f6d6bf6ee7d98b3f9639c08949d694d8add6c8d239a.exe	82
PID 2696 set thread context of 1632	2696	csrsll.exe	93
PID 2696 set thread context of 4396	2696	csrsll.exe	94

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4808-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4808-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3512-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3512-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4808-11-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3512-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0009000000023c5d-29.dat	upx
behavioral2/memory/3512-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2696-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2696-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4396-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4396-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4396-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4396-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3512-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2696-51-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4396-45-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1632-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4396-63-0x0000000000400000-0x0000000000414000-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	ae8db847b2d81587fb2f5f6d6bf6ee7d98b3f9639c08949d694d8add6c8d239a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ae8db847b2d81587fb2f5f6d6bf6ee7d98b3f9639c08949d694d8add6c8d239a.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

description	pid	Process
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe
Token: SeDebugPrivilege	1632	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4808	ae8db847b2d81587fb2f5f6d6bf6ee7d98b3f9639c08949d694d8add6c8d239a.exe
3512	ae8db847b2d81587fb2f5f6d6bf6ee7d98b3f9639c08949d694d8add6c8d239a.exe
2696	csrsll.exe
1632	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4808 wrote to memory of 3512	4808	ae8db847b2d81587fb2f5f6d6bf6ee7d98b3f9639c08949d694d8add6c8d239a.exe	82
PID 4808 wrote to memory of 3512	4808	ae8db847b2d81587fb2f5f6d6bf6ee7d98b3f9639c08949d694d8add6c8d239a.exe	82
PID 4808 wrote to memory of 3512	4808	ae8db847b2d81587fb2f5f6d6bf6ee7d98b3f9639c08949d694d8add6c8d239a.exe	82
PID 4808 wrote to memory of 3512	4808	ae8db847b2d81587fb2f5f6d6bf6ee7d98b3f9639c08949d694d8add6c8d239a.exe	82
PID 4808 wrote to memory of 3512	4808	ae8db847b2d81587fb2f5f6d6bf6ee7d98b3f9639c08949d694d8add6c8d239a.exe	82
PID 4808 wrote to memory of 3512	4808	ae8db847b2d81587fb2f5f6d6bf6ee7d98b3f9639c08949d694d8add6c8d239a.exe	82
PID 4808 wrote to memory of 3512	4808	ae8db847b2d81587fb2f5f6d6bf6ee7d98b3f9639c08949d694d8add6c8d239a.exe	82
PID 4808 wrote to memory of 3512	4808	ae8db847b2d81587fb2f5f6d6bf6ee7d98b3f9639c08949d694d8add6c8d239a.exe	82
PID 3512 wrote to memory of 4472	3512	ae8db847b2d81587fb2f5f6d6bf6ee7d98b3f9639c08949d694d8add6c8d239a.exe	83
PID 3512 wrote to memory of 4472	3512	ae8db847b2d81587fb2f5f6d6bf6ee7d98b3f9639c08949d694d8add6c8d239a.exe	83
PID 3512 wrote to memory of 4472	3512	ae8db847b2d81587fb2f5f6d6bf6ee7d98b3f9639c08949d694d8add6c8d239a.exe	83
PID 4472 wrote to memory of 1488	4472	cmd.exe	86
PID 4472 wrote to memory of 1488	4472	cmd.exe	86
PID 4472 wrote to memory of 1488	4472	cmd.exe	86
PID 3512 wrote to memory of 2696	3512	ae8db847b2d81587fb2f5f6d6bf6ee7d98b3f9639c08949d694d8add6c8d239a.exe	87
PID 3512 wrote to memory of 2696	3512	ae8db847b2d81587fb2f5f6d6bf6ee7d98b3f9639c08949d694d8add6c8d239a.exe	87
PID 3512 wrote to memory of 2696	3512	ae8db847b2d81587fb2f5f6d6bf6ee7d98b3f9639c08949d694d8add6c8d239a.exe	87
PID 2696 wrote to memory of 1632	2696	csrsll.exe	93
PID 2696 wrote to memory of 1632	2696	csrsll.exe	93
PID 2696 wrote to memory of 1632	2696	csrsll.exe	93
PID 2696 wrote to memory of 1632	2696	csrsll.exe	93
PID 2696 wrote to memory of 1632	2696	csrsll.exe	93
PID 2696 wrote to memory of 1632	2696	csrsll.exe	93
PID 2696 wrote to memory of 1632	2696	csrsll.exe	93
PID 2696 wrote to memory of 1632	2696	csrsll.exe	93
PID 2696 wrote to memory of 4396	2696	csrsll.exe	94
PID 2696 wrote to memory of 4396	2696	csrsll.exe	94
PID 2696 wrote to memory of 4396	2696	csrsll.exe	94
PID 2696 wrote to memory of 4396	2696	csrsll.exe	94
PID 2696 wrote to memory of 4396	2696	csrsll.exe	94
PID 2696 wrote to memory of 4396	2696	csrsll.exe	94
PID 2696 wrote to memory of 4396	2696	csrsll.exe	94
PID 2696 wrote to memory of 4396	2696	csrsll.exe	94

C:\Users\Admin\AppData\Local\Temp\ae8db847b2d81587fb2f5f6d6bf6ee7d98b3f9639c08949d694d8add6c8d239a.exe
"C:\Users\Admin\AppData\Local\Temp\ae8db847b2d81587fb2f5f6d6bf6ee7d98b3f9639c08949d694d8add6c8d239a.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4808
- C:\Users\Admin\AppData\Local\Temp\ae8db847b2d81587fb2f5f6d6bf6ee7d98b3f9639c08949d694d8add6c8d239a.exe
  "C:\Users\Admin\AppData\Local\Temp\ae8db847b2d81587fb2f5f6d6bf6ee7d98b3f9639c08949d694d8add6c8d239a.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3512
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\UKLIR.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4472
  - - 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:1488
- - 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:2696
  - - 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:1632
  - - 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:4396

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\UKLIR.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
ee075b94148d17445733a08c7b848866

SHA1
ec7333871caba17724befeda58a7e180c3b44e23

SHA256
aef3599539f910b2c63c31859545b08a6ba37674feec65414a605dc0a99a13c9

SHA512
93c4536594cfec3b42031c8a71d9aeed3f960d834a3c69c01f3dc83b796303c906953095626520a95456d33d6cbce5866ed68fefc046f5891faa257a5bea39f4

Download Submit
memory/1632-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2696-51-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2696-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2696-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3512-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3512-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3512-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3512-59-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/3512-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3512-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4396-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4396-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4396-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4396-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4396-45-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4396-63-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4808-6-0x0000000002B80000-0x0000000002B82000-memory.dmp

Filesize
8KB

Download
memory/4808-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4808-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4808-11-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4808-4-0x0000000002B60000-0x0000000002B62000-memory.dmp

Filesize
8KB

Download
memory/4808-3-0x0000000002B50000-0x0000000002B52000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads