modiloader | 72c8cbdabd25c283b8be4333c4513e3edfbe5edd488744ff9f010ed13a780640

Analysis

max time kernel
148s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
10-01-2025 02:33

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General

Target

72c8cbdabd25c283b8be4333c4513e3edfbe5edd488744ff9f010ed13a780640.exe
Size

90KB
MD5

429d04548758a6742d96fae1a086059f
SHA1

2356d3cbcce1d1c888c12867660381c8730336e4
SHA256

72c8cbdabd25c283b8be4333c4513e3edfbe5edd488744ff9f010ed13a780640
SHA512

3c33a89961cd9e67660fc8bd0bd4280aca94dc5076d9c716f03dade917fa7218879fa3a40d1eb63df95fad9be02e95e01dc2bf461d906af7f204f08b254aba8d
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

resource	yara_rule
behavioral2/memory/3240-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3240-58-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3240-57-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3240-63-0x0000000000400000-0x0000000000414000-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-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	72c8cbdabd25c283b8be4333c4513e3edfbe5edd488744ff9f010ed13a780640.exe

Executes dropped EXE 3 IoCs

pid	Process
2844	csrsll.exe
3480	csrsll.exe
3240	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-1-5-21-4089630652-1596403869-279772308-1000\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 1312 set thread context of 1772	1312	72c8cbdabd25c283b8be4333c4513e3edfbe5edd488744ff9f010ed13a780640.exe	84
PID 2844 set thread context of 3480	2844	csrsll.exe	94
PID 2844 set thread context of 3240	2844	csrsll.exe	95

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1312-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1312-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1772-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1772-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1312-11-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1772-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0008000000023c73-29.dat	upx
behavioral2/memory/2844-36-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1772-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2844-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2844-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3240-47-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3240-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3240-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3240-58-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3240-57-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2844-56-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1772-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3480-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3240-63-0x0000000000400000-0x0000000000414000-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	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	72c8cbdabd25c283b8be4333c4513e3edfbe5edd488744ff9f010ed13a780640.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	72c8cbdabd25c283b8be4333c4513e3edfbe5edd488744ff9f010ed13a780640.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1312	72c8cbdabd25c283b8be4333c4513e3edfbe5edd488744ff9f010ed13a780640.exe
1772	72c8cbdabd25c283b8be4333c4513e3edfbe5edd488744ff9f010ed13a780640.exe
2844	csrsll.exe
3480	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 1312 wrote to memory of 1772	1312	72c8cbdabd25c283b8be4333c4513e3edfbe5edd488744ff9f010ed13a780640.exe	84
PID 1312 wrote to memory of 1772	1312	72c8cbdabd25c283b8be4333c4513e3edfbe5edd488744ff9f010ed13a780640.exe	84
PID 1312 wrote to memory of 1772	1312	72c8cbdabd25c283b8be4333c4513e3edfbe5edd488744ff9f010ed13a780640.exe	84
PID 1312 wrote to memory of 1772	1312	72c8cbdabd25c283b8be4333c4513e3edfbe5edd488744ff9f010ed13a780640.exe	84
PID 1312 wrote to memory of 1772	1312	72c8cbdabd25c283b8be4333c4513e3edfbe5edd488744ff9f010ed13a780640.exe	84
PID 1312 wrote to memory of 1772	1312	72c8cbdabd25c283b8be4333c4513e3edfbe5edd488744ff9f010ed13a780640.exe	84
PID 1312 wrote to memory of 1772	1312	72c8cbdabd25c283b8be4333c4513e3edfbe5edd488744ff9f010ed13a780640.exe	84
PID 1312 wrote to memory of 1772	1312	72c8cbdabd25c283b8be4333c4513e3edfbe5edd488744ff9f010ed13a780640.exe	84
PID 1772 wrote to memory of 1788	1772	72c8cbdabd25c283b8be4333c4513e3edfbe5edd488744ff9f010ed13a780640.exe	85
PID 1772 wrote to memory of 1788	1772	72c8cbdabd25c283b8be4333c4513e3edfbe5edd488744ff9f010ed13a780640.exe	85
PID 1772 wrote to memory of 1788	1772	72c8cbdabd25c283b8be4333c4513e3edfbe5edd488744ff9f010ed13a780640.exe	85
PID 1788 wrote to memory of 2216	1788	cmd.exe	88
PID 1788 wrote to memory of 2216	1788	cmd.exe	88
PID 1788 wrote to memory of 2216	1788	cmd.exe	88
PID 1772 wrote to memory of 2844	1772	72c8cbdabd25c283b8be4333c4513e3edfbe5edd488744ff9f010ed13a780640.exe	89
PID 1772 wrote to memory of 2844	1772	72c8cbdabd25c283b8be4333c4513e3edfbe5edd488744ff9f010ed13a780640.exe	89
PID 1772 wrote to memory of 2844	1772	72c8cbdabd25c283b8be4333c4513e3edfbe5edd488744ff9f010ed13a780640.exe	89
PID 2844 wrote to memory of 3480	2844	csrsll.exe	94
PID 2844 wrote to memory of 3480	2844	csrsll.exe	94
PID 2844 wrote to memory of 3480	2844	csrsll.exe	94
PID 2844 wrote to memory of 3480	2844	csrsll.exe	94
PID 2844 wrote to memory of 3480	2844	csrsll.exe	94
PID 2844 wrote to memory of 3480	2844	csrsll.exe	94
PID 2844 wrote to memory of 3480	2844	csrsll.exe	94
PID 2844 wrote to memory of 3480	2844	csrsll.exe	94
PID 2844 wrote to memory of 3240	2844	csrsll.exe	95
PID 2844 wrote to memory of 3240	2844	csrsll.exe	95
PID 2844 wrote to memory of 3240	2844	csrsll.exe	95
PID 2844 wrote to memory of 3240	2844	csrsll.exe	95
PID 2844 wrote to memory of 3240	2844	csrsll.exe	95
PID 2844 wrote to memory of 3240	2844	csrsll.exe	95
PID 2844 wrote to memory of 3240	2844	csrsll.exe	95
PID 2844 wrote to memory of 3240	2844	csrsll.exe	95

C:\Users\Admin\AppData\Local\Temp\72c8cbdabd25c283b8be4333c4513e3edfbe5edd488744ff9f010ed13a780640.exe
"C:\Users\Admin\AppData\Local\Temp\72c8cbdabd25c283b8be4333c4513e3edfbe5edd488744ff9f010ed13a780640.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1312
- C:\Users\Admin\AppData\Local\Temp\72c8cbdabd25c283b8be4333c4513e3edfbe5edd488744ff9f010ed13a780640.exe
  "C:\Users\Admin\AppData\Local\Temp\72c8cbdabd25c283b8be4333c4513e3edfbe5edd488744ff9f010ed13a780640.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1772
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\JLYBG.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1788
  - - 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:2216
- - 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:2844
  - - 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:3480
  - - 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:3240

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\JLYBG.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
7627c9efec6f593c9e8160b6d9698eda

SHA1
b1fcf38f0ed52a253d95be7d670d1816f1bd07d2

SHA256
4b1dd8e5635f3a5ee8e516600af752cc00bff6e9f6fec4353b61f52233861a48

SHA512
19736387f0dffa81d176452f9925770a48fdfc053f72566bd56fa0ac29f2521d2ca21bd644442881971459086a06a25d7058c9e087bfee89803b47a978e6f377

Download Submit
memory/1312-3-0x0000000002A10000-0x0000000002A12000-memory.dmp

Filesize
8KB

Download
memory/1312-4-0x0000000002A20000-0x0000000002A22000-memory.dmp

Filesize
8KB

Download
memory/1312-6-0x0000000002A40000-0x0000000002A42000-memory.dmp

Filesize
8KB

Download
memory/1312-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1312-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1312-11-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1772-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1772-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1772-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1772-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1772-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2844-56-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2844-36-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2844-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2844-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3240-47-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3240-58-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3240-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3240-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3240-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3240-63-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3480-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads