modiloader | 497863193b04c59812c86239ebf89db67cb6734994a942fd0779f24764796daa

Analysis

max time kernel
118s
max time network
118s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
14/09/2024, 12:05

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General

Target

d9e568db435d0c71ddd6b56418384e00N.exe
Size

90KB
MD5

d9e568db435d0c71ddd6b56418384e00
SHA1

2291b66ec1f0026958ff2bf7b8ad2830413a23bf
SHA256

497863193b04c59812c86239ebf89db67cb6734994a942fd0779f24764796daa
SHA512

6046c116286415836633b350d6b66d651e43b2b64a158d2c17e5254c1e4e85cea7429cc4e86309aa52af7e9017711e558d9e00b8dd6cea92540a9acd7c222a23
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 Second Stage 4 IoCs

resource	yara_rule
behavioral2/memory/4380-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4380-57-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4380-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4380-62-0x0000000000400000-0x0000000000414000-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-1-5-21-355097885-2402257403-2971294179-1000\Control Panel\International\Geo\Nation	d9e568db435d0c71ddd6b56418384e00N.exe

Executes dropped EXE 3 IoCs

pid	Process
1332	csrsll.exe
972	csrsll.exe
4380	csrsll.exe

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/memory/392-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/392-4-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2516-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2516-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/392-10-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2516-12-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000b000000023408-28.dat	upx
behavioral2/memory/1332-35-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1332-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1332-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4380-44-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4380-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2516-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4380-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4380-57-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4380-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1332-55-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2516-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/972-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4380-62-0x0000000000400000-0x0000000000414000-memory.dmp	upx

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-1-5-21-355097885-2402257403-2971294179-1000\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 392 set thread context of 2516	392	d9e568db435d0c71ddd6b56418384e00N.exe	95
PID 1332 set thread context of 972	1332	csrsll.exe	103
PID 1332 set thread context of 4380	1332	csrsll.exe	104

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	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	d9e568db435d0c71ddd6b56418384e00N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d9e568db435d0c71ddd6b56418384e00N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe
Token: SeDebugPrivilege	972	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
392	d9e568db435d0c71ddd6b56418384e00N.exe
2516	d9e568db435d0c71ddd6b56418384e00N.exe
1332	csrsll.exe
972	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 392 wrote to memory of 2516	392	d9e568db435d0c71ddd6b56418384e00N.exe	95
PID 392 wrote to memory of 2516	392	d9e568db435d0c71ddd6b56418384e00N.exe	95
PID 392 wrote to memory of 2516	392	d9e568db435d0c71ddd6b56418384e00N.exe	95
PID 392 wrote to memory of 2516	392	d9e568db435d0c71ddd6b56418384e00N.exe	95
PID 392 wrote to memory of 2516	392	d9e568db435d0c71ddd6b56418384e00N.exe	95
PID 392 wrote to memory of 2516	392	d9e568db435d0c71ddd6b56418384e00N.exe	95
PID 392 wrote to memory of 2516	392	d9e568db435d0c71ddd6b56418384e00N.exe	95
PID 392 wrote to memory of 2516	392	d9e568db435d0c71ddd6b56418384e00N.exe	95
PID 2516 wrote to memory of 4760	2516	d9e568db435d0c71ddd6b56418384e00N.exe	96
PID 2516 wrote to memory of 4760	2516	d9e568db435d0c71ddd6b56418384e00N.exe	96
PID 2516 wrote to memory of 4760	2516	d9e568db435d0c71ddd6b56418384e00N.exe	96
PID 4760 wrote to memory of 4212	4760	cmd.exe	99
PID 4760 wrote to memory of 4212	4760	cmd.exe	99
PID 4760 wrote to memory of 4212	4760	cmd.exe	99
PID 2516 wrote to memory of 1332	2516	d9e568db435d0c71ddd6b56418384e00N.exe	100
PID 2516 wrote to memory of 1332	2516	d9e568db435d0c71ddd6b56418384e00N.exe	100
PID 2516 wrote to memory of 1332	2516	d9e568db435d0c71ddd6b56418384e00N.exe	100
PID 1332 wrote to memory of 972	1332	csrsll.exe	103
PID 1332 wrote to memory of 972	1332	csrsll.exe	103
PID 1332 wrote to memory of 972	1332	csrsll.exe	103
PID 1332 wrote to memory of 972	1332	csrsll.exe	103
PID 1332 wrote to memory of 972	1332	csrsll.exe	103
PID 1332 wrote to memory of 972	1332	csrsll.exe	103
PID 1332 wrote to memory of 972	1332	csrsll.exe	103
PID 1332 wrote to memory of 972	1332	csrsll.exe	103
PID 1332 wrote to memory of 4380	1332	csrsll.exe	104
PID 1332 wrote to memory of 4380	1332	csrsll.exe	104
PID 1332 wrote to memory of 4380	1332	csrsll.exe	104
PID 1332 wrote to memory of 4380	1332	csrsll.exe	104
PID 1332 wrote to memory of 4380	1332	csrsll.exe	104
PID 1332 wrote to memory of 4380	1332	csrsll.exe	104
PID 1332 wrote to memory of 4380	1332	csrsll.exe	104
PID 1332 wrote to memory of 4380	1332	csrsll.exe	104

C:\Users\Admin\AppData\Local\Temp\d9e568db435d0c71ddd6b56418384e00N.exe
"C:\Users\Admin\AppData\Local\Temp\d9e568db435d0c71ddd6b56418384e00N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:392
- C:\Users\Admin\AppData\Local\Temp\d9e568db435d0c71ddd6b56418384e00N.exe
  "C:\Users\Admin\AppData\Local\Temp\d9e568db435d0c71ddd6b56418384e00N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2516
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\UYTQR.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4760
  - - 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:4212
- - 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:1332
  - - 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:972
  - - 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:4380

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\UYTQR.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
3fbd07714e0f102e9bac7152fd4a94b5

SHA1
89c54e540be86ee558cd16adb1f8192df4c6582d

SHA256
c9db326f14f837b140cfbce5b1f5bfcab26b1ee73d19dcd4a1860adedd1d5104

SHA512
694d215735481932d3f393bf4151fcef97ac192bc9157371d854ffd9f7b2583b98f815bd9a444d92f766c96e094a9a7581a09192fcfea6d9ffb45e420f4c9049

Download Submit
memory/392-4-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/392-6-0x0000000002200000-0x0000000002202000-memory.dmp

Filesize
8KB

Download
memory/392-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/392-10-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/392-5-0x00000000021F0000-0x00000000021F2000-memory.dmp

Filesize
8KB

Download
memory/392-3-0x00000000021D0000-0x00000000021D2000-memory.dmp

Filesize
8KB

Download
memory/972-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1332-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1332-55-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1332-35-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1332-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2516-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2516-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2516-12-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2516-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2516-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4380-44-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4380-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4380-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4380-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4380-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4380-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads