modiloader | 9918ed94d2cc5aa6aa09d186914d11922b1dbcdb31f491de34f3f48118444eca

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
10-01-2025 21:00

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General

Target

9918ed94d2cc5aa6aa09d186914d11922b1dbcdb31f491de34f3f48118444eca.exe
Size

90KB
MD5

85f60e5fa96c016385008424eb02cb12
SHA1

63827b2fcc9d8569fd68466dbf2bf8a5731c4d47
SHA256

9918ed94d2cc5aa6aa09d186914d11922b1dbcdb31f491de34f3f48118444eca
SHA512

4eac4fa4a1ff30f4c9328b370f4803debd98e9672123714f868940646e897343b87201e4ef1767d067d9c0bc4277fae1cffe2e93524e14e856164930f896d14f
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDj:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3Z

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/3688-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3688-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3688-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3688-63-0x0000000000400000-0x0000000000414000-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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	9918ed94d2cc5aa6aa09d186914d11922b1dbcdb31f491de34f3f48118444eca.exe

Executes dropped EXE 3 IoCs

pid	Process
4632	csrsll.exe
3480	csrsll.exe
3688	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-1-5-21-3442511616-637977696-3186306149-1000\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 3048 set thread context of 996	3048	9918ed94d2cc5aa6aa09d186914d11922b1dbcdb31f491de34f3f48118444eca.exe	85
PID 4632 set thread context of 3480	4632	csrsll.exe	96
PID 4632 set thread context of 3688	4632	csrsll.exe	97

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3048-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3048-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/996-8-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/996-10-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3048-12-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/996-14-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0008000000023c9e-30.dat	upx
behavioral2/memory/996-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4632-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4632-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3688-46-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3688-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3688-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3688-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4632-58-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3688-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/996-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3480-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3688-63-0x0000000000400000-0x0000000000414000-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	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	9918ed94d2cc5aa6aa09d186914d11922b1dbcdb31f491de34f3f48118444eca.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	9918ed94d2cc5aa6aa09d186914d11922b1dbcdb31f491de34f3f48118444eca.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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
3048	9918ed94d2cc5aa6aa09d186914d11922b1dbcdb31f491de34f3f48118444eca.exe
996	9918ed94d2cc5aa6aa09d186914d11922b1dbcdb31f491de34f3f48118444eca.exe
4632	csrsll.exe
3480	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 3048 wrote to memory of 996	3048	9918ed94d2cc5aa6aa09d186914d11922b1dbcdb31f491de34f3f48118444eca.exe	85
PID 3048 wrote to memory of 996	3048	9918ed94d2cc5aa6aa09d186914d11922b1dbcdb31f491de34f3f48118444eca.exe	85
PID 3048 wrote to memory of 996	3048	9918ed94d2cc5aa6aa09d186914d11922b1dbcdb31f491de34f3f48118444eca.exe	85
PID 3048 wrote to memory of 996	3048	9918ed94d2cc5aa6aa09d186914d11922b1dbcdb31f491de34f3f48118444eca.exe	85
PID 3048 wrote to memory of 996	3048	9918ed94d2cc5aa6aa09d186914d11922b1dbcdb31f491de34f3f48118444eca.exe	85
PID 3048 wrote to memory of 996	3048	9918ed94d2cc5aa6aa09d186914d11922b1dbcdb31f491de34f3f48118444eca.exe	85
PID 3048 wrote to memory of 996	3048	9918ed94d2cc5aa6aa09d186914d11922b1dbcdb31f491de34f3f48118444eca.exe	85
PID 3048 wrote to memory of 996	3048	9918ed94d2cc5aa6aa09d186914d11922b1dbcdb31f491de34f3f48118444eca.exe	85
PID 996 wrote to memory of 3620	996	9918ed94d2cc5aa6aa09d186914d11922b1dbcdb31f491de34f3f48118444eca.exe	88
PID 996 wrote to memory of 3620	996	9918ed94d2cc5aa6aa09d186914d11922b1dbcdb31f491de34f3f48118444eca.exe	88
PID 996 wrote to memory of 3620	996	9918ed94d2cc5aa6aa09d186914d11922b1dbcdb31f491de34f3f48118444eca.exe	88
PID 3620 wrote to memory of 3476	3620	cmd.exe	91
PID 3620 wrote to memory of 3476	3620	cmd.exe	91
PID 3620 wrote to memory of 3476	3620	cmd.exe	91
PID 996 wrote to memory of 4632	996	9918ed94d2cc5aa6aa09d186914d11922b1dbcdb31f491de34f3f48118444eca.exe	92
PID 996 wrote to memory of 4632	996	9918ed94d2cc5aa6aa09d186914d11922b1dbcdb31f491de34f3f48118444eca.exe	92
PID 996 wrote to memory of 4632	996	9918ed94d2cc5aa6aa09d186914d11922b1dbcdb31f491de34f3f48118444eca.exe	92
PID 4632 wrote to memory of 3480	4632	csrsll.exe	96
PID 4632 wrote to memory of 3480	4632	csrsll.exe	96
PID 4632 wrote to memory of 3480	4632	csrsll.exe	96
PID 4632 wrote to memory of 3480	4632	csrsll.exe	96
PID 4632 wrote to memory of 3480	4632	csrsll.exe	96
PID 4632 wrote to memory of 3480	4632	csrsll.exe	96
PID 4632 wrote to memory of 3480	4632	csrsll.exe	96
PID 4632 wrote to memory of 3480	4632	csrsll.exe	96
PID 4632 wrote to memory of 3688	4632	csrsll.exe	97
PID 4632 wrote to memory of 3688	4632	csrsll.exe	97
PID 4632 wrote to memory of 3688	4632	csrsll.exe	97
PID 4632 wrote to memory of 3688	4632	csrsll.exe	97
PID 4632 wrote to memory of 3688	4632	csrsll.exe	97
PID 4632 wrote to memory of 3688	4632	csrsll.exe	97
PID 4632 wrote to memory of 3688	4632	csrsll.exe	97
PID 4632 wrote to memory of 3688	4632	csrsll.exe	97

C:\Users\Admin\AppData\Local\Temp\9918ed94d2cc5aa6aa09d186914d11922b1dbcdb31f491de34f3f48118444eca.exe
"C:\Users\Admin\AppData\Local\Temp\9918ed94d2cc5aa6aa09d186914d11922b1dbcdb31f491de34f3f48118444eca.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3048
- C:\Users\Admin\AppData\Local\Temp\9918ed94d2cc5aa6aa09d186914d11922b1dbcdb31f491de34f3f48118444eca.exe
  "C:\Users\Admin\AppData\Local\Temp\9918ed94d2cc5aa6aa09d186914d11922b1dbcdb31f491de34f3f48118444eca.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:996
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\YKIMH.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3620
  - - 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:3476
- - 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:4632
  - - 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:3688

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\YKIMH.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
0747dc4d1c3a08c3ce58644708e87019

SHA1
6eb40c1d4bf2b356b31c04ad2e678d2a29a4bd16

SHA256
04eae51f78cceb2d6fc9ae3f80f404bbf7e56d37269192311bb71bdaed86670b

SHA512
02dda2f608836f18a903339cbf32c8f2645ef3754fbd8b33117c57a24437e94f81dd641eface1f02e3260ffa8a0547051ff1c0aa73ab998eaf62a997e9091d7f

Download Submit
memory/996-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/996-10-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/996-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/996-14-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/996-8-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3048-4-0x00000000021D0000-0x00000000021D2000-memory.dmp

Filesize
8KB

Download
memory/3048-12-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3048-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3048-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3048-3-0x00000000021C0000-0x00000000021C2000-memory.dmp

Filesize
8KB

Download
memory/3048-7-0x00000000021F0000-0x00000000021F2000-memory.dmp

Filesize
8KB

Download
memory/3048-6-0x00000000021E0000-0x00000000021E2000-memory.dmp

Filesize
8KB

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

Filesize
44KB

Download
memory/3688-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3688-46-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3688-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3688-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3688-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3688-63-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4632-58-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4632-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4632-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads