modiloader | 4d54cf68ee665e6125431e9cc9c92ef0fae98ef1494d41d9e09b6d5d2f038402

Analysis

max time kernel
150s
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
15-12-2024 22:07

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General

Target

4d54cf68ee665e6125431e9cc9c92ef0fae98ef1494d41d9e09b6d5d2f038402.exe
Size

90KB
MD5

c9aef0f4637920070799f2a37d0bbe37
SHA1

8a22ab3d4d3f91f9f3dbffe3117b24e4b7d3db20
SHA256

4d54cf68ee665e6125431e9cc9c92ef0fae98ef1494d41d9e09b6d5d2f038402
SHA512

e0e8039831cdc4faacacdc0a62c4da5a53815d2f6dadcaa425fe9a5da9c7ef7f7fc76c3c125ac3e2906e23eb1a9c02d506d47fa3de931833f27852b2f06b7e80
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/2168-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2168-58-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2168-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2168-63-0x0000000000400000-0x0000000000414000-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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	4d54cf68ee665e6125431e9cc9c92ef0fae98ef1494d41d9e09b6d5d2f038402.exe

Executes dropped EXE 3 IoCs

pid	Process
4596	csrsll.exe
4352	csrsll.exe
2168	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-1-5-21-4050598569-1597076380-177084960-1000\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 772 set thread context of 1144	772	4d54cf68ee665e6125431e9cc9c92ef0fae98ef1494d41d9e09b6d5d2f038402.exe	84
PID 4596 set thread context of 4352	4596	csrsll.exe	97
PID 4596 set thread context of 2168	4596	csrsll.exe	98

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/memory/772-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/772-4-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1144-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1144-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/772-11-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1144-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0008000000023ce2-29.dat	upx
behavioral2/memory/4596-37-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1144-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4596-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4596-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2168-45-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2168-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4596-55-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2168-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2168-58-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2168-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1144-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4352-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2168-63-0x0000000000400000-0x0000000000414000-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	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	4d54cf68ee665e6125431e9cc9c92ef0fae98ef1494d41d9e09b6d5d2f038402.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4d54cf68ee665e6125431e9cc9c92ef0fae98ef1494d41d9e09b6d5d2f038402.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4352	csrsll.exe
Token: SeDebugPrivilege	4352	csrsll.exe
Token: SeDebugPrivilege	4352	csrsll.exe
Token: SeDebugPrivilege	4352	csrsll.exe
Token: SeDebugPrivilege	4352	csrsll.exe
Token: SeDebugPrivilege	4352	csrsll.exe
Token: SeDebugPrivilege	4352	csrsll.exe
Token: SeDebugPrivilege	4352	csrsll.exe
Token: SeDebugPrivilege	4352	csrsll.exe
Token: SeDebugPrivilege	4352	csrsll.exe
Token: SeDebugPrivilege	4352	csrsll.exe
Token: SeDebugPrivilege	4352	csrsll.exe
Token: SeDebugPrivilege	4352	csrsll.exe
Token: SeDebugPrivilege	4352	csrsll.exe
Token: SeDebugPrivilege	4352	csrsll.exe
Token: SeDebugPrivilege	4352	csrsll.exe
Token: SeDebugPrivilege	4352	csrsll.exe
Token: SeDebugPrivilege	4352	csrsll.exe
Token: SeDebugPrivilege	4352	csrsll.exe
Token: SeDebugPrivilege	4352	csrsll.exe
Token: SeDebugPrivilege	4352	csrsll.exe
Token: SeDebugPrivilege	4352	csrsll.exe
Token: SeDebugPrivilege	4352	csrsll.exe
Token: SeDebugPrivilege	4352	csrsll.exe
Token: SeDebugPrivilege	4352	csrsll.exe
Token: SeDebugPrivilege	4352	csrsll.exe
Token: SeDebugPrivilege	4352	csrsll.exe
Token: SeDebugPrivilege	4352	csrsll.exe
Token: SeDebugPrivilege	4352	csrsll.exe
Token: SeDebugPrivilege	4352	csrsll.exe
Token: SeDebugPrivilege	4352	csrsll.exe
Token: SeDebugPrivilege	4352	csrsll.exe
Token: SeDebugPrivilege	4352	csrsll.exe
Token: SeDebugPrivilege	4352	csrsll.exe
Token: SeDebugPrivilege	4352	csrsll.exe
Token: SeDebugPrivilege	4352	csrsll.exe
Token: SeDebugPrivilege	4352	csrsll.exe
Token: SeDebugPrivilege	4352	csrsll.exe
Token: SeDebugPrivilege	4352	csrsll.exe
Token: SeDebugPrivilege	4352	csrsll.exe
Token: SeDebugPrivilege	4352	csrsll.exe
Token: SeDebugPrivilege	4352	csrsll.exe
Token: SeDebugPrivilege	4352	csrsll.exe
Token: SeDebugPrivilege	4352	csrsll.exe
Token: SeDebugPrivilege	4352	csrsll.exe
Token: SeDebugPrivilege	4352	csrsll.exe
Token: SeDebugPrivilege	4352	csrsll.exe
Token: SeDebugPrivilege	4352	csrsll.exe
Token: SeDebugPrivilege	4352	csrsll.exe
Token: SeDebugPrivilege	4352	csrsll.exe
Token: SeDebugPrivilege	4352	csrsll.exe
Token: SeDebugPrivilege	4352	csrsll.exe
Token: SeDebugPrivilege	4352	csrsll.exe
Token: SeDebugPrivilege	4352	csrsll.exe
Token: SeDebugPrivilege	4352	csrsll.exe
Token: SeDebugPrivilege	4352	csrsll.exe
Token: SeDebugPrivilege	4352	csrsll.exe
Token: SeDebugPrivilege	4352	csrsll.exe
Token: SeDebugPrivilege	4352	csrsll.exe
Token: SeDebugPrivilege	4352	csrsll.exe
Token: SeDebugPrivilege	4352	csrsll.exe
Token: SeDebugPrivilege	4352	csrsll.exe
Token: SeDebugPrivilege	4352	csrsll.exe
Token: SeDebugPrivilege	4352	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
772	4d54cf68ee665e6125431e9cc9c92ef0fae98ef1494d41d9e09b6d5d2f038402.exe
1144	4d54cf68ee665e6125431e9cc9c92ef0fae98ef1494d41d9e09b6d5d2f038402.exe
4596	csrsll.exe
4352	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 772 wrote to memory of 1144	772	4d54cf68ee665e6125431e9cc9c92ef0fae98ef1494d41d9e09b6d5d2f038402.exe	84
PID 772 wrote to memory of 1144	772	4d54cf68ee665e6125431e9cc9c92ef0fae98ef1494d41d9e09b6d5d2f038402.exe	84
PID 772 wrote to memory of 1144	772	4d54cf68ee665e6125431e9cc9c92ef0fae98ef1494d41d9e09b6d5d2f038402.exe	84
PID 772 wrote to memory of 1144	772	4d54cf68ee665e6125431e9cc9c92ef0fae98ef1494d41d9e09b6d5d2f038402.exe	84
PID 772 wrote to memory of 1144	772	4d54cf68ee665e6125431e9cc9c92ef0fae98ef1494d41d9e09b6d5d2f038402.exe	84
PID 772 wrote to memory of 1144	772	4d54cf68ee665e6125431e9cc9c92ef0fae98ef1494d41d9e09b6d5d2f038402.exe	84
PID 772 wrote to memory of 1144	772	4d54cf68ee665e6125431e9cc9c92ef0fae98ef1494d41d9e09b6d5d2f038402.exe	84
PID 772 wrote to memory of 1144	772	4d54cf68ee665e6125431e9cc9c92ef0fae98ef1494d41d9e09b6d5d2f038402.exe	84
PID 1144 wrote to memory of 540	1144	4d54cf68ee665e6125431e9cc9c92ef0fae98ef1494d41d9e09b6d5d2f038402.exe	87
PID 1144 wrote to memory of 540	1144	4d54cf68ee665e6125431e9cc9c92ef0fae98ef1494d41d9e09b6d5d2f038402.exe	87
PID 1144 wrote to memory of 540	1144	4d54cf68ee665e6125431e9cc9c92ef0fae98ef1494d41d9e09b6d5d2f038402.exe	87
PID 540 wrote to memory of 3656	540	cmd.exe	90
PID 540 wrote to memory of 3656	540	cmd.exe	90
PID 540 wrote to memory of 3656	540	cmd.exe	90
PID 1144 wrote to memory of 4596	1144	4d54cf68ee665e6125431e9cc9c92ef0fae98ef1494d41d9e09b6d5d2f038402.exe	91
PID 1144 wrote to memory of 4596	1144	4d54cf68ee665e6125431e9cc9c92ef0fae98ef1494d41d9e09b6d5d2f038402.exe	91
PID 1144 wrote to memory of 4596	1144	4d54cf68ee665e6125431e9cc9c92ef0fae98ef1494d41d9e09b6d5d2f038402.exe	91
PID 4596 wrote to memory of 4352	4596	csrsll.exe	97
PID 4596 wrote to memory of 4352	4596	csrsll.exe	97
PID 4596 wrote to memory of 4352	4596	csrsll.exe	97
PID 4596 wrote to memory of 4352	4596	csrsll.exe	97
PID 4596 wrote to memory of 4352	4596	csrsll.exe	97
PID 4596 wrote to memory of 4352	4596	csrsll.exe	97
PID 4596 wrote to memory of 4352	4596	csrsll.exe	97
PID 4596 wrote to memory of 4352	4596	csrsll.exe	97
PID 4596 wrote to memory of 2168	4596	csrsll.exe	98
PID 4596 wrote to memory of 2168	4596	csrsll.exe	98
PID 4596 wrote to memory of 2168	4596	csrsll.exe	98
PID 4596 wrote to memory of 2168	4596	csrsll.exe	98
PID 4596 wrote to memory of 2168	4596	csrsll.exe	98
PID 4596 wrote to memory of 2168	4596	csrsll.exe	98
PID 4596 wrote to memory of 2168	4596	csrsll.exe	98
PID 4596 wrote to memory of 2168	4596	csrsll.exe	98

C:\Users\Admin\AppData\Local\Temp\4d54cf68ee665e6125431e9cc9c92ef0fae98ef1494d41d9e09b6d5d2f038402.exe
"C:\Users\Admin\AppData\Local\Temp\4d54cf68ee665e6125431e9cc9c92ef0fae98ef1494d41d9e09b6d5d2f038402.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:772
- C:\Users\Admin\AppData\Local\Temp\4d54cf68ee665e6125431e9cc9c92ef0fae98ef1494d41d9e09b6d5d2f038402.exe
  "C:\Users\Admin\AppData\Local\Temp\4d54cf68ee665e6125431e9cc9c92ef0fae98ef1494d41d9e09b6d5d2f038402.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1144
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\XNOLU.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:540
  - - 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:3656
- - 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:4596
  - - 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:4352
  - - 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:2168

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\XNOLU.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
8241d6d2e63d27489a68d414c22375e3

SHA1
c3dfa3306f5d54773c2446951c344e1f6fdf3492

SHA256
fe0fec294ffe189acc1c09d02e6e80834d497e861cca5004cbfaf301546cab5f

SHA512
85bc6c599cf8c6dd3fadb53c9e1c4acaceedfa01054b294ae6d4360924b893d3eae48391d308b4eee04fc32cb1c42c374575f3b6e0ee8cad4ba03c043b0f2015

Download Submit
memory/772-3-0x0000000002910000-0x0000000002912000-memory.dmp

Filesize
8KB

Download
memory/772-5-0x0000000002930000-0x0000000002932000-memory.dmp

Filesize
8KB

Download
memory/772-4-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/772-6-0x0000000002940000-0x0000000002942000-memory.dmp

Filesize
8KB

Download
memory/772-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/772-11-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1144-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1144-59-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/1144-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1144-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1144-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1144-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2168-63-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2168-45-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2168-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2168-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2168-58-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2168-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4352-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4596-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4596-55-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4596-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4596-37-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads