modiloader | 1e34777dd5fe6eb9e0799987543624564fdafe3073e53c3776a754ccbe2602d0

Analysis

max time kernel
119s
max time network
119s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
23-11-2024 07:23

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General

Target

1e34777dd5fe6eb9e0799987543624564fdafe3073e53c3776a754ccbe2602d0N.exe
Size

90KB
MD5

f609983b6ffee7a59b2c57607b365270
SHA1

259eb307625ac7bc0e2221ac71831ddc5e8bf995
SHA256

1e34777dd5fe6eb9e0799987543624564fdafe3073e53c3776a754ccbe2602d0
SHA512

cfeeb84485af3d7e59cebc23c0511ebbb17625a6194095bfb948c32ceb54f12e7a5f2ca886c0bec89ea371e8f45096acc929a57b9d89b1db2eb9d56d63670fe9
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

Processes:

resource	yara_rule
behavioral2/memory/1664-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1664-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1664-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1664-63-0x0000000000400000-0x0000000000414000-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

Processes:

1e34777dd5fe6eb9e0799987543624564fdafe3073e53c3776a754ccbe2602d0N.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	1e34777dd5fe6eb9e0799987543624564fdafe3073e53c3776a754ccbe2602d0N.exe

Executes dropped EXE 3 IoCs

Processes:

csrsll.execsrsll.execsrsll.exe

pid	Process
376	csrsll.exe
1816	csrsll.exe
1664	csrsll.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

reg.exe

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

Processes:

1e34777dd5fe6eb9e0799987543624564fdafe3073e53c3776a754ccbe2602d0N.execsrsll.exe

description	pid	Process	procid_target
PID 2244 set thread context of 3568	2244	1e34777dd5fe6eb9e0799987543624564fdafe3073e53c3776a754ccbe2602d0N.exe	87
PID 376 set thread context of 1816	376	csrsll.exe	95
PID 376 set thread context of 1664	376	csrsll.exe	96

UPX packed file 20 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/2244-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2244-4-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2244-12-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3568-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3568-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3568-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0009000000023c5f-29.dat	upx
behavioral2/memory/376-37-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3568-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/376-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/376-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1664-46-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1664-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/376-58-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1664-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1664-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1664-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3568-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1816-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1664-63-0x0000000000400000-0x0000000000414000-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

Processes:

1e34777dd5fe6eb9e0799987543624564fdafe3073e53c3776a754ccbe2602d0N.execmd.exereg.execsrsll.execsrsll.execsrsll.exe1e34777dd5fe6eb9e0799987543624564fdafe3073e53c3776a754ccbe2602d0N.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1e34777dd5fe6eb9e0799987543624564fdafe3073e53c3776a754ccbe2602d0N.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1e34777dd5fe6eb9e0799987543624564fdafe3073e53c3776a754ccbe2602d0N.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

csrsll.exe

description	pid	Process
Token: SeDebugPrivilege	1816	csrsll.exe
Token: SeDebugPrivilege	1816	csrsll.exe
Token: SeDebugPrivilege	1816	csrsll.exe
Token: SeDebugPrivilege	1816	csrsll.exe
Token: SeDebugPrivilege	1816	csrsll.exe
Token: SeDebugPrivilege	1816	csrsll.exe
Token: SeDebugPrivilege	1816	csrsll.exe
Token: SeDebugPrivilege	1816	csrsll.exe
Token: SeDebugPrivilege	1816	csrsll.exe
Token: SeDebugPrivilege	1816	csrsll.exe
Token: SeDebugPrivilege	1816	csrsll.exe
Token: SeDebugPrivilege	1816	csrsll.exe
Token: SeDebugPrivilege	1816	csrsll.exe
Token: SeDebugPrivilege	1816	csrsll.exe
Token: SeDebugPrivilege	1816	csrsll.exe
Token: SeDebugPrivilege	1816	csrsll.exe
Token: SeDebugPrivilege	1816	csrsll.exe
Token: SeDebugPrivilege	1816	csrsll.exe
Token: SeDebugPrivilege	1816	csrsll.exe
Token: SeDebugPrivilege	1816	csrsll.exe
Token: SeDebugPrivilege	1816	csrsll.exe
Token: SeDebugPrivilege	1816	csrsll.exe
Token: SeDebugPrivilege	1816	csrsll.exe
Token: SeDebugPrivilege	1816	csrsll.exe
Token: SeDebugPrivilege	1816	csrsll.exe
Token: SeDebugPrivilege	1816	csrsll.exe
Token: SeDebugPrivilege	1816	csrsll.exe
Token: SeDebugPrivilege	1816	csrsll.exe
Token: SeDebugPrivilege	1816	csrsll.exe
Token: SeDebugPrivilege	1816	csrsll.exe
Token: SeDebugPrivilege	1816	csrsll.exe
Token: SeDebugPrivilege	1816	csrsll.exe
Token: SeDebugPrivilege	1816	csrsll.exe
Token: SeDebugPrivilege	1816	csrsll.exe
Token: SeDebugPrivilege	1816	csrsll.exe
Token: SeDebugPrivilege	1816	csrsll.exe
Token: SeDebugPrivilege	1816	csrsll.exe
Token: SeDebugPrivilege	1816	csrsll.exe
Token: SeDebugPrivilege	1816	csrsll.exe
Token: SeDebugPrivilege	1816	csrsll.exe
Token: SeDebugPrivilege	1816	csrsll.exe
Token: SeDebugPrivilege	1816	csrsll.exe
Token: SeDebugPrivilege	1816	csrsll.exe
Token: SeDebugPrivilege	1816	csrsll.exe
Token: SeDebugPrivilege	1816	csrsll.exe
Token: SeDebugPrivilege	1816	csrsll.exe
Token: SeDebugPrivilege	1816	csrsll.exe
Token: SeDebugPrivilege	1816	csrsll.exe
Token: SeDebugPrivilege	1816	csrsll.exe
Token: SeDebugPrivilege	1816	csrsll.exe
Token: SeDebugPrivilege	1816	csrsll.exe
Token: SeDebugPrivilege	1816	csrsll.exe
Token: SeDebugPrivilege	1816	csrsll.exe
Token: SeDebugPrivilege	1816	csrsll.exe
Token: SeDebugPrivilege	1816	csrsll.exe
Token: SeDebugPrivilege	1816	csrsll.exe
Token: SeDebugPrivilege	1816	csrsll.exe
Token: SeDebugPrivilege	1816	csrsll.exe
Token: SeDebugPrivilege	1816	csrsll.exe
Token: SeDebugPrivilege	1816	csrsll.exe
Token: SeDebugPrivilege	1816	csrsll.exe
Token: SeDebugPrivilege	1816	csrsll.exe
Token: SeDebugPrivilege	1816	csrsll.exe
Token: SeDebugPrivilege	1816	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

Processes:

1e34777dd5fe6eb9e0799987543624564fdafe3073e53c3776a754ccbe2602d0N.exe1e34777dd5fe6eb9e0799987543624564fdafe3073e53c3776a754ccbe2602d0N.execsrsll.execsrsll.exe

pid	Process
2244	1e34777dd5fe6eb9e0799987543624564fdafe3073e53c3776a754ccbe2602d0N.exe
3568	1e34777dd5fe6eb9e0799987543624564fdafe3073e53c3776a754ccbe2602d0N.exe
376	csrsll.exe
1816	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

Processes:

1e34777dd5fe6eb9e0799987543624564fdafe3073e53c3776a754ccbe2602d0N.exe1e34777dd5fe6eb9e0799987543624564fdafe3073e53c3776a754ccbe2602d0N.execmd.execsrsll.exe

description	pid	Process	procid_target
PID 2244 wrote to memory of 3568	2244	1e34777dd5fe6eb9e0799987543624564fdafe3073e53c3776a754ccbe2602d0N.exe	87
PID 2244 wrote to memory of 3568	2244	1e34777dd5fe6eb9e0799987543624564fdafe3073e53c3776a754ccbe2602d0N.exe	87
PID 2244 wrote to memory of 3568	2244	1e34777dd5fe6eb9e0799987543624564fdafe3073e53c3776a754ccbe2602d0N.exe	87
PID 2244 wrote to memory of 3568	2244	1e34777dd5fe6eb9e0799987543624564fdafe3073e53c3776a754ccbe2602d0N.exe	87
PID 2244 wrote to memory of 3568	2244	1e34777dd5fe6eb9e0799987543624564fdafe3073e53c3776a754ccbe2602d0N.exe	87
PID 2244 wrote to memory of 3568	2244	1e34777dd5fe6eb9e0799987543624564fdafe3073e53c3776a754ccbe2602d0N.exe	87
PID 2244 wrote to memory of 3568	2244	1e34777dd5fe6eb9e0799987543624564fdafe3073e53c3776a754ccbe2602d0N.exe	87
PID 2244 wrote to memory of 3568	2244	1e34777dd5fe6eb9e0799987543624564fdafe3073e53c3776a754ccbe2602d0N.exe	87
PID 3568 wrote to memory of 2572	3568	1e34777dd5fe6eb9e0799987543624564fdafe3073e53c3776a754ccbe2602d0N.exe	89
PID 3568 wrote to memory of 2572	3568	1e34777dd5fe6eb9e0799987543624564fdafe3073e53c3776a754ccbe2602d0N.exe	89
PID 3568 wrote to memory of 2572	3568	1e34777dd5fe6eb9e0799987543624564fdafe3073e53c3776a754ccbe2602d0N.exe	89
PID 2572 wrote to memory of 1460	2572	cmd.exe	93
PID 2572 wrote to memory of 1460	2572	cmd.exe	93
PID 2572 wrote to memory of 1460	2572	cmd.exe	93
PID 3568 wrote to memory of 376	3568	1e34777dd5fe6eb9e0799987543624564fdafe3073e53c3776a754ccbe2602d0N.exe	94
PID 3568 wrote to memory of 376	3568	1e34777dd5fe6eb9e0799987543624564fdafe3073e53c3776a754ccbe2602d0N.exe	94
PID 3568 wrote to memory of 376	3568	1e34777dd5fe6eb9e0799987543624564fdafe3073e53c3776a754ccbe2602d0N.exe	94
PID 376 wrote to memory of 1816	376	csrsll.exe	95
PID 376 wrote to memory of 1816	376	csrsll.exe	95
PID 376 wrote to memory of 1816	376	csrsll.exe	95
PID 376 wrote to memory of 1816	376	csrsll.exe	95
PID 376 wrote to memory of 1816	376	csrsll.exe	95
PID 376 wrote to memory of 1816	376	csrsll.exe	95
PID 376 wrote to memory of 1816	376	csrsll.exe	95
PID 376 wrote to memory of 1816	376	csrsll.exe	95
PID 376 wrote to memory of 1664	376	csrsll.exe	96
PID 376 wrote to memory of 1664	376	csrsll.exe	96
PID 376 wrote to memory of 1664	376	csrsll.exe	96
PID 376 wrote to memory of 1664	376	csrsll.exe	96
PID 376 wrote to memory of 1664	376	csrsll.exe	96
PID 376 wrote to memory of 1664	376	csrsll.exe	96
PID 376 wrote to memory of 1664	376	csrsll.exe	96
PID 376 wrote to memory of 1664	376	csrsll.exe	96

C:\Users\Admin\AppData\Local\Temp\1e34777dd5fe6eb9e0799987543624564fdafe3073e53c3776a754ccbe2602d0N.exe
"C:\Users\Admin\AppData\Local\Temp\1e34777dd5fe6eb9e0799987543624564fdafe3073e53c3776a754ccbe2602d0N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2244
- C:\Users\Admin\AppData\Local\Temp\1e34777dd5fe6eb9e0799987543624564fdafe3073e53c3776a754ccbe2602d0N.exe
  "C:\Users\Admin\AppData\Local\Temp\1e34777dd5fe6eb9e0799987543624564fdafe3073e53c3776a754ccbe2602d0N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3568
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\EOXVF.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2572
  - - 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:1460
- - 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:376
  - - 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:1816
  - - 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:1664

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\EOXVF.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
c909fa87f0bd6c0e0c509a5cd767f8a1

SHA1
74953b27b56bf8b92a895425dff3f181c6de72d5

SHA256
f23916853b743f5813a5865f3c747d6959d288a34cb9098a7d3da7610e8fd0c5

SHA512
cc0a5cf6b4864de1e1e7ff97edfb44da9c515fed3e620ab65d304902ba4967397b4ad189aa98c45690abc6b17fd56079bf72f19809b2b0b352204e30e40edd33

Download Submit
memory/376-58-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/376-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/376-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/376-37-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1664-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1664-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1664-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1664-46-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1664-63-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1664-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1816-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2244-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2244-12-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2244-5-0x0000000002A30000-0x0000000002A32000-memory.dmp

Filesize
8KB

Download
memory/2244-6-0x0000000002A40000-0x0000000002A42000-memory.dmp

Filesize
8KB

Download
memory/2244-4-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2244-3-0x0000000002A10000-0x0000000002A12000-memory.dmp

Filesize
8KB

Download
memory/3568-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3568-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3568-59-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/3568-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3568-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3568-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download