modiloader | d00bf987e3b64752901c336833344fc730ed9afd29f1fbe594d63aa69a00e7ec

Analysis

max time kernel
119s
max time network
120s
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 08:20

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General

Target

d00bf987e3b64752901c336833344fc730ed9afd29f1fbe594d63aa69a00e7ec.exe
Size

90KB
MD5

e7e0c89da1168140405e227f3c5a5350
SHA1

0e8be695a0a351849e9497c63d2ca57bf55a1e5b
SHA256

d00bf987e3b64752901c336833344fc730ed9afd29f1fbe594d63aa69a00e7ec
SHA512

36c9a1a610e22f452c7241c80c733fe3a6e8523da7366ccc8953109fb3c23cb83c90731aea8dd86e836003bfe2e67503099ffb9e60b64426997409d3f27f50c8
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDN:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3D

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 5 IoCs

resource	yara_rule
behavioral2/memory/3460-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3460-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3460-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3460-51-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3460-63-0x0000000000400000-0x0000000000414000-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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	d00bf987e3b64752901c336833344fc730ed9afd29f1fbe594d63aa69a00e7ec.exe

Executes dropped EXE 3 IoCs

pid	Process
264	csrsll.exe
3516	csrsll.exe
3460	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-1-5-21-1045960512-3948844814-3059691613-1000\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 1644 set thread context of 4316	1644	d00bf987e3b64752901c336833344fc730ed9afd29f1fbe594d63aa69a00e7ec.exe	84
PID 264 set thread context of 3516	264	csrsll.exe	102
PID 264 set thread context of 3460	264	csrsll.exe	103

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1644-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1644-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4316-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4316-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4316-12-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1644-13-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x000b000000023b7d-29.dat	upx
behavioral2/memory/4316-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/264-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/264-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3460-45-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3460-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3460-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3460-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3460-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3460-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/264-58-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4316-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3516-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3460-63-0x0000000000400000-0x0000000000414000-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	d00bf987e3b64752901c336833344fc730ed9afd29f1fbe594d63aa69a00e7ec.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d00bf987e3b64752901c336833344fc730ed9afd29f1fbe594d63aa69a00e7ec.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	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1644	d00bf987e3b64752901c336833344fc730ed9afd29f1fbe594d63aa69a00e7ec.exe
4316	d00bf987e3b64752901c336833344fc730ed9afd29f1fbe594d63aa69a00e7ec.exe
264	csrsll.exe
3516	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 1644 wrote to memory of 4316	1644	d00bf987e3b64752901c336833344fc730ed9afd29f1fbe594d63aa69a00e7ec.exe	84
PID 1644 wrote to memory of 4316	1644	d00bf987e3b64752901c336833344fc730ed9afd29f1fbe594d63aa69a00e7ec.exe	84
PID 1644 wrote to memory of 4316	1644	d00bf987e3b64752901c336833344fc730ed9afd29f1fbe594d63aa69a00e7ec.exe	84
PID 1644 wrote to memory of 4316	1644	d00bf987e3b64752901c336833344fc730ed9afd29f1fbe594d63aa69a00e7ec.exe	84
PID 1644 wrote to memory of 4316	1644	d00bf987e3b64752901c336833344fc730ed9afd29f1fbe594d63aa69a00e7ec.exe	84
PID 1644 wrote to memory of 4316	1644	d00bf987e3b64752901c336833344fc730ed9afd29f1fbe594d63aa69a00e7ec.exe	84
PID 1644 wrote to memory of 4316	1644	d00bf987e3b64752901c336833344fc730ed9afd29f1fbe594d63aa69a00e7ec.exe	84
PID 1644 wrote to memory of 4316	1644	d00bf987e3b64752901c336833344fc730ed9afd29f1fbe594d63aa69a00e7ec.exe	84
PID 4316 wrote to memory of 3164	4316	d00bf987e3b64752901c336833344fc730ed9afd29f1fbe594d63aa69a00e7ec.exe	91
PID 4316 wrote to memory of 3164	4316	d00bf987e3b64752901c336833344fc730ed9afd29f1fbe594d63aa69a00e7ec.exe	91
PID 4316 wrote to memory of 3164	4316	d00bf987e3b64752901c336833344fc730ed9afd29f1fbe594d63aa69a00e7ec.exe	91
PID 3164 wrote to memory of 2520	3164	cmd.exe	95
PID 3164 wrote to memory of 2520	3164	cmd.exe	95
PID 3164 wrote to memory of 2520	3164	cmd.exe	95
PID 4316 wrote to memory of 264	4316	d00bf987e3b64752901c336833344fc730ed9afd29f1fbe594d63aa69a00e7ec.exe	96
PID 4316 wrote to memory of 264	4316	d00bf987e3b64752901c336833344fc730ed9afd29f1fbe594d63aa69a00e7ec.exe	96
PID 4316 wrote to memory of 264	4316	d00bf987e3b64752901c336833344fc730ed9afd29f1fbe594d63aa69a00e7ec.exe	96
PID 264 wrote to memory of 3516	264	csrsll.exe	102
PID 264 wrote to memory of 3516	264	csrsll.exe	102
PID 264 wrote to memory of 3516	264	csrsll.exe	102
PID 264 wrote to memory of 3516	264	csrsll.exe	102
PID 264 wrote to memory of 3516	264	csrsll.exe	102
PID 264 wrote to memory of 3516	264	csrsll.exe	102
PID 264 wrote to memory of 3516	264	csrsll.exe	102
PID 264 wrote to memory of 3516	264	csrsll.exe	102
PID 264 wrote to memory of 3460	264	csrsll.exe	103
PID 264 wrote to memory of 3460	264	csrsll.exe	103
PID 264 wrote to memory of 3460	264	csrsll.exe	103
PID 264 wrote to memory of 3460	264	csrsll.exe	103
PID 264 wrote to memory of 3460	264	csrsll.exe	103
PID 264 wrote to memory of 3460	264	csrsll.exe	103
PID 264 wrote to memory of 3460	264	csrsll.exe	103
PID 264 wrote to memory of 3460	264	csrsll.exe	103

C:\Users\Admin\AppData\Local\Temp\d00bf987e3b64752901c336833344fc730ed9afd29f1fbe594d63aa69a00e7ec.exe
"C:\Users\Admin\AppData\Local\Temp\d00bf987e3b64752901c336833344fc730ed9afd29f1fbe594d63aa69a00e7ec.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1644
- C:\Users\Admin\AppData\Local\Temp\d00bf987e3b64752901c336833344fc730ed9afd29f1fbe594d63aa69a00e7ec.exe
  "C:\Users\Admin\AppData\Local\Temp\d00bf987e3b64752901c336833344fc730ed9afd29f1fbe594d63aa69a00e7ec.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4316
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\MUITJ.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3164
  - - 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:2520
- - 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:264
  - - 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:3516
  - - 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:3460

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\MUITJ.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
651a3f53f1cbb2ea06f44ce498fb31c5

SHA1
17f2a929898cd8b49a171c03b9e5d79556e03f32

SHA256
3e8593182ce8435befcdafb6907eda64cdb52e5663d8801e6d458ea1f1ffe398

SHA512
50591a052253136818a7c94d09a0e2194eec439ba890064420099ef9d511b0a276fa57415de179e4ba2867109bdd00509e3e8520c81dbc9f5131b0993ce6d261

Download Submit
memory/264-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/264-58-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/264-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1644-3-0x0000000002310000-0x0000000002312000-memory.dmp

Filesize
8KB

Download
memory/1644-4-0x0000000002430000-0x0000000002432000-memory.dmp

Filesize
8KB

Download
memory/1644-6-0x0000000002450000-0x0000000002452000-memory.dmp

Filesize
8KB

Download
memory/1644-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1644-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1644-13-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3460-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3460-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3460-63-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3460-45-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3460-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3460-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3460-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3516-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4316-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4316-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4316-59-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/4316-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4316-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4316-12-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads