modiloader | c596e5c9ee7639ade61c27fe8eed3d0ce1f39fabda8f00cc3915c22a876b8488

Analysis

max time kernel
120s
max time network
116s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
19-12-2024 01:38

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General

Target

c596e5c9ee7639ade61c27fe8eed3d0ce1f39fabda8f00cc3915c22a876b8488.exe
Size

90KB
MD5

f19c07f1901fbc015426c9ae90c908bd
SHA1

1252137ec3564d8912bdf0c3518c4c244b7b0202
SHA256

c596e5c9ee7639ade61c27fe8eed3d0ce1f39fabda8f00cc3915c22a876b8488
SHA512

c6fcf7eacd58450705bf67c80bb81536c1fdf332ffe6286e42b90dd36906ce06db7f51f660bc01df31506d547b619ffe7c992fd0d44c1e7d20fdc7e7eb8ad2eb
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDa:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3A

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/4860-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4860-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4860-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4860-62-0x0000000000400000-0x0000000000414000-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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	c596e5c9ee7639ade61c27fe8eed3d0ce1f39fabda8f00cc3915c22a876b8488.exe

Executes dropped EXE 3 IoCs

pid	Process
3180	csrsll.exe
4628	csrsll.exe
4860	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-1-5-21-493223053-2004649691-1575712786-1000\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 872 set thread context of 2352	872	c596e5c9ee7639ade61c27fe8eed3d0ce1f39fabda8f00cc3915c22a876b8488.exe	85
PID 3180 set thread context of 4628	3180	csrsll.exe	99
PID 3180 set thread context of 4860	3180	csrsll.exe	100

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/872-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/872-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2352-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2352-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/872-11-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2352-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000b000000023b94-29.dat	upx
behavioral2/memory/2352-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3180-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3180-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4860-46-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4860-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4860-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4860-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4860-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3180-57-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2352-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4628-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4860-62-0x0000000000400000-0x0000000000414000-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	c596e5c9ee7639ade61c27fe8eed3d0ce1f39fabda8f00cc3915c22a876b8488.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c596e5c9ee7639ade61c27fe8eed3d0ce1f39fabda8f00cc3915c22a876b8488.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

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe
Token: SeDebugPrivilege	4628	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
872	c596e5c9ee7639ade61c27fe8eed3d0ce1f39fabda8f00cc3915c22a876b8488.exe
2352	c596e5c9ee7639ade61c27fe8eed3d0ce1f39fabda8f00cc3915c22a876b8488.exe
3180	csrsll.exe
4628	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 872 wrote to memory of 2352	872	c596e5c9ee7639ade61c27fe8eed3d0ce1f39fabda8f00cc3915c22a876b8488.exe	85
PID 872 wrote to memory of 2352	872	c596e5c9ee7639ade61c27fe8eed3d0ce1f39fabda8f00cc3915c22a876b8488.exe	85
PID 872 wrote to memory of 2352	872	c596e5c9ee7639ade61c27fe8eed3d0ce1f39fabda8f00cc3915c22a876b8488.exe	85
PID 872 wrote to memory of 2352	872	c596e5c9ee7639ade61c27fe8eed3d0ce1f39fabda8f00cc3915c22a876b8488.exe	85
PID 872 wrote to memory of 2352	872	c596e5c9ee7639ade61c27fe8eed3d0ce1f39fabda8f00cc3915c22a876b8488.exe	85
PID 872 wrote to memory of 2352	872	c596e5c9ee7639ade61c27fe8eed3d0ce1f39fabda8f00cc3915c22a876b8488.exe	85
PID 872 wrote to memory of 2352	872	c596e5c9ee7639ade61c27fe8eed3d0ce1f39fabda8f00cc3915c22a876b8488.exe	85
PID 872 wrote to memory of 2352	872	c596e5c9ee7639ade61c27fe8eed3d0ce1f39fabda8f00cc3915c22a876b8488.exe	85
PID 2352 wrote to memory of 4180	2352	c596e5c9ee7639ade61c27fe8eed3d0ce1f39fabda8f00cc3915c22a876b8488.exe	86
PID 2352 wrote to memory of 4180	2352	c596e5c9ee7639ade61c27fe8eed3d0ce1f39fabda8f00cc3915c22a876b8488.exe	86
PID 2352 wrote to memory of 4180	2352	c596e5c9ee7639ade61c27fe8eed3d0ce1f39fabda8f00cc3915c22a876b8488.exe	86
PID 4180 wrote to memory of 5064	4180	cmd.exe	90
PID 4180 wrote to memory of 5064	4180	cmd.exe	90
PID 4180 wrote to memory of 5064	4180	cmd.exe	90
PID 2352 wrote to memory of 3180	2352	c596e5c9ee7639ade61c27fe8eed3d0ce1f39fabda8f00cc3915c22a876b8488.exe	91
PID 2352 wrote to memory of 3180	2352	c596e5c9ee7639ade61c27fe8eed3d0ce1f39fabda8f00cc3915c22a876b8488.exe	91
PID 2352 wrote to memory of 3180	2352	c596e5c9ee7639ade61c27fe8eed3d0ce1f39fabda8f00cc3915c22a876b8488.exe	91
PID 3180 wrote to memory of 4628	3180	csrsll.exe	99
PID 3180 wrote to memory of 4628	3180	csrsll.exe	99
PID 3180 wrote to memory of 4628	3180	csrsll.exe	99
PID 3180 wrote to memory of 4628	3180	csrsll.exe	99
PID 3180 wrote to memory of 4628	3180	csrsll.exe	99
PID 3180 wrote to memory of 4628	3180	csrsll.exe	99
PID 3180 wrote to memory of 4628	3180	csrsll.exe	99
PID 3180 wrote to memory of 4628	3180	csrsll.exe	99
PID 3180 wrote to memory of 4860	3180	csrsll.exe	100
PID 3180 wrote to memory of 4860	3180	csrsll.exe	100
PID 3180 wrote to memory of 4860	3180	csrsll.exe	100
PID 3180 wrote to memory of 4860	3180	csrsll.exe	100
PID 3180 wrote to memory of 4860	3180	csrsll.exe	100
PID 3180 wrote to memory of 4860	3180	csrsll.exe	100
PID 3180 wrote to memory of 4860	3180	csrsll.exe	100
PID 3180 wrote to memory of 4860	3180	csrsll.exe	100

C:\Users\Admin\AppData\Local\Temp\c596e5c9ee7639ade61c27fe8eed3d0ce1f39fabda8f00cc3915c22a876b8488.exe
"C:\Users\Admin\AppData\Local\Temp\c596e5c9ee7639ade61c27fe8eed3d0ce1f39fabda8f00cc3915c22a876b8488.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:872
- C:\Users\Admin\AppData\Local\Temp\c596e5c9ee7639ade61c27fe8eed3d0ce1f39fabda8f00cc3915c22a876b8488.exe
  "C:\Users\Admin\AppData\Local\Temp\c596e5c9ee7639ade61c27fe8eed3d0ce1f39fabda8f00cc3915c22a876b8488.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2352
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\GYXTU.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4180
  - - 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:5064
- - 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:3180
  - - 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:4628
  - - 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:4860

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\GYXTU.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
f5adad0d5de3f2dd0f83ba569b9d30cf

SHA1
cefa645800b364342dc437ece5387de6d9a9eb33

SHA256
beb4f04cdca28f10cd494d6b112e1e7f013ef8eddaf4f2be64445de7849057c1

SHA512
28f8887a6f5da08b6ae2de62560ba7246c284d58cf60ea13efb083edf9b326378b356d7498b00534d1c80cd4c6fd99f3a157be778c1465d86d3ab46cb72b87bd

Download Submit
memory/872-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/872-6-0x0000000002320000-0x0000000002322000-memory.dmp

Filesize
8KB

Download
memory/872-11-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/872-4-0x0000000002300000-0x0000000002302000-memory.dmp

Filesize
8KB

Download
memory/872-3-0x00000000022F0000-0x00000000022F2000-memory.dmp

Filesize
8KB

Download
memory/872-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2352-58-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/2352-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2352-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2352-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2352-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2352-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3180-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3180-57-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3180-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4628-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4860-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4860-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4860-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4860-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4860-46-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4860-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads