modiloader | 6c28306cd8f9c5c88b8c4ec9ffbc4b87597715fce46127ed15522765769f5c2b

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
18-12-2024 22:33

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General

Target

6c28306cd8f9c5c88b8c4ec9ffbc4b87597715fce46127ed15522765769f5c2b.exe
Size

90KB
MD5

85e4975dc4a56450956aedc9f257bc3a
SHA1

28eb3b3376dd88fb95a0c8271cc45ef7863845d5
SHA256

6c28306cd8f9c5c88b8c4ec9ffbc4b87597715fce46127ed15522765769f5c2b
SHA512

3475970ba68ea40fe327ed5fdaee81375592f88a7c0dc27c58933e3d7a26a278385b4b463c1d26844c1985e8d1967cb6352a9fc80cca353e9afcc68b409d737c
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDv:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3d

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/3432-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3432-57-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3432-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3432-63-0x0000000000400000-0x0000000000414000-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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	6c28306cd8f9c5c88b8c4ec9ffbc4b87597715fce46127ed15522765769f5c2b.exe

Executes dropped EXE 3 IoCs

pid	Process
3560	csrsll.exe
3488	csrsll.exe
3432	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-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Win Pdf = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\csrsll.exe"	reg.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 4856 set thread context of 1856	4856	6c28306cd8f9c5c88b8c4ec9ffbc4b87597715fce46127ed15522765769f5c2b.exe	84
PID 3560 set thread context of 3488	3560	csrsll.exe	94
PID 3560 set thread context of 3432	3560	csrsll.exe	95

UPX packed file 21 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4856-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4856-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1856-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1856-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1856-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4856-14-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x0009000000023bc3-29.dat	upx
behavioral2/memory/3560-36-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1856-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3560-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3560-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3432-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3432-57-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3488-56-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3432-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3432-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3432-45-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3560-58-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1856-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3488-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3432-63-0x0000000000400000-0x0000000000414000-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	6c28306cd8f9c5c88b8c4ec9ffbc4b87597715fce46127ed15522765769f5c2b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	6c28306cd8f9c5c88b8c4ec9ffbc4b87597715fce46127ed15522765769f5c2b.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	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe
Token: SeDebugPrivilege	3488	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4856	6c28306cd8f9c5c88b8c4ec9ffbc4b87597715fce46127ed15522765769f5c2b.exe
1856	6c28306cd8f9c5c88b8c4ec9ffbc4b87597715fce46127ed15522765769f5c2b.exe
3560	csrsll.exe
3488	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4856 wrote to memory of 1856	4856	6c28306cd8f9c5c88b8c4ec9ffbc4b87597715fce46127ed15522765769f5c2b.exe	84
PID 4856 wrote to memory of 1856	4856	6c28306cd8f9c5c88b8c4ec9ffbc4b87597715fce46127ed15522765769f5c2b.exe	84
PID 4856 wrote to memory of 1856	4856	6c28306cd8f9c5c88b8c4ec9ffbc4b87597715fce46127ed15522765769f5c2b.exe	84
PID 4856 wrote to memory of 1856	4856	6c28306cd8f9c5c88b8c4ec9ffbc4b87597715fce46127ed15522765769f5c2b.exe	84
PID 4856 wrote to memory of 1856	4856	6c28306cd8f9c5c88b8c4ec9ffbc4b87597715fce46127ed15522765769f5c2b.exe	84
PID 4856 wrote to memory of 1856	4856	6c28306cd8f9c5c88b8c4ec9ffbc4b87597715fce46127ed15522765769f5c2b.exe	84
PID 4856 wrote to memory of 1856	4856	6c28306cd8f9c5c88b8c4ec9ffbc4b87597715fce46127ed15522765769f5c2b.exe	84
PID 4856 wrote to memory of 1856	4856	6c28306cd8f9c5c88b8c4ec9ffbc4b87597715fce46127ed15522765769f5c2b.exe	84
PID 1856 wrote to memory of 3196	1856	6c28306cd8f9c5c88b8c4ec9ffbc4b87597715fce46127ed15522765769f5c2b.exe	85
PID 1856 wrote to memory of 3196	1856	6c28306cd8f9c5c88b8c4ec9ffbc4b87597715fce46127ed15522765769f5c2b.exe	85
PID 1856 wrote to memory of 3196	1856	6c28306cd8f9c5c88b8c4ec9ffbc4b87597715fce46127ed15522765769f5c2b.exe	85
PID 3196 wrote to memory of 4540	3196	cmd.exe	88
PID 3196 wrote to memory of 4540	3196	cmd.exe	88
PID 3196 wrote to memory of 4540	3196	cmd.exe	88
PID 1856 wrote to memory of 3560	1856	6c28306cd8f9c5c88b8c4ec9ffbc4b87597715fce46127ed15522765769f5c2b.exe	89
PID 1856 wrote to memory of 3560	1856	6c28306cd8f9c5c88b8c4ec9ffbc4b87597715fce46127ed15522765769f5c2b.exe	89
PID 1856 wrote to memory of 3560	1856	6c28306cd8f9c5c88b8c4ec9ffbc4b87597715fce46127ed15522765769f5c2b.exe	89
PID 3560 wrote to memory of 3488	3560	csrsll.exe	94
PID 3560 wrote to memory of 3488	3560	csrsll.exe	94
PID 3560 wrote to memory of 3488	3560	csrsll.exe	94
PID 3560 wrote to memory of 3488	3560	csrsll.exe	94
PID 3560 wrote to memory of 3488	3560	csrsll.exe	94
PID 3560 wrote to memory of 3488	3560	csrsll.exe	94
PID 3560 wrote to memory of 3488	3560	csrsll.exe	94
PID 3560 wrote to memory of 3488	3560	csrsll.exe	94
PID 3560 wrote to memory of 3432	3560	csrsll.exe	95
PID 3560 wrote to memory of 3432	3560	csrsll.exe	95
PID 3560 wrote to memory of 3432	3560	csrsll.exe	95
PID 3560 wrote to memory of 3432	3560	csrsll.exe	95
PID 3560 wrote to memory of 3432	3560	csrsll.exe	95
PID 3560 wrote to memory of 3432	3560	csrsll.exe	95
PID 3560 wrote to memory of 3432	3560	csrsll.exe	95
PID 3560 wrote to memory of 3432	3560	csrsll.exe	95

C:\Users\Admin\AppData\Local\Temp\6c28306cd8f9c5c88b8c4ec9ffbc4b87597715fce46127ed15522765769f5c2b.exe
"C:\Users\Admin\AppData\Local\Temp\6c28306cd8f9c5c88b8c4ec9ffbc4b87597715fce46127ed15522765769f5c2b.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4856
- C:\Users\Admin\AppData\Local\Temp\6c28306cd8f9c5c88b8c4ec9ffbc4b87597715fce46127ed15522765769f5c2b.exe
  "C:\Users\Admin\AppData\Local\Temp\6c28306cd8f9c5c88b8c4ec9ffbc4b87597715fce46127ed15522765769f5c2b.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1856
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\PSDIN.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3196
  - - 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:4540
- - 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:3560
  - - 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:3488
  - - 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:3432

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\PSDIN.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
3be6c9f70fe5562c24250b2e747322f3

SHA1
3b937dcc83770f962c64b714c5a29ac6ad884dee

SHA256
ab903a4524fbf02a6fa4d6c65b596d2d18be523faffb92e7004704676a4b5923

SHA512
d10abadf4dca0c8abf00b619fe0f7e60d2832f455651a5852480b40e275753dbae7bf405bb863b25ef7580422fa64b4284a99733bc54033c3c775f9a842a3216

Download Submit
memory/1856-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1856-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1856-59-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/1856-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1856-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1856-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3432-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3432-45-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3432-63-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3432-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3432-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3432-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3488-56-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3488-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3560-58-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3560-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3560-36-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3560-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4856-6-0x0000000002C90000-0x0000000002C92000-memory.dmp

Filesize
8KB

Download
memory/4856-14-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4856-4-0x0000000002C70000-0x0000000002C72000-memory.dmp

Filesize
8KB

Download
memory/4856-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4856-3-0x0000000002B60000-0x0000000002B62000-memory.dmp

Filesize
8KB

Download
memory/4856-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads