modiloader | 6c28306cd8f9c5c88b8c4ec9ffbc4b87597715fce46127ed15522765769f5c2b

Analysis

max time kernel
150s
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 22:26

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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/2644-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2644-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2644-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2644-62-0x0000000000400000-0x0000000000414000-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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	6c28306cd8f9c5c88b8c4ec9ffbc4b87597715fce46127ed15522765769f5c2b.exe

Executes dropped EXE 3 IoCs

pid	Process
2712	csrsll.exe
4056	csrsll.exe
2644	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 436 set thread context of 1008	436	6c28306cd8f9c5c88b8c4ec9ffbc4b87597715fce46127ed15522765769f5c2b.exe	82
PID 2712 set thread context of 4056	2712	csrsll.exe	93
PID 2712 set thread context of 2644	2712	csrsll.exe	94

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/memory/436-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/436-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1008-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1008-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1008-12-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/436-11-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x000b000000023b89-28.dat	upx
behavioral2/memory/2712-35-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1008-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2712-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2712-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2644-46-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2644-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2644-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2712-57-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2644-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2644-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1008-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4056-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2644-62-0x0000000000400000-0x0000000000414000-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	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	4056	csrsll.exe
Token: SeDebugPrivilege	4056	csrsll.exe
Token: SeDebugPrivilege	4056	csrsll.exe
Token: SeDebugPrivilege	4056	csrsll.exe
Token: SeDebugPrivilege	4056	csrsll.exe
Token: SeDebugPrivilege	4056	csrsll.exe
Token: SeDebugPrivilege	4056	csrsll.exe
Token: SeDebugPrivilege	4056	csrsll.exe
Token: SeDebugPrivilege	4056	csrsll.exe
Token: SeDebugPrivilege	4056	csrsll.exe
Token: SeDebugPrivilege	4056	csrsll.exe
Token: SeDebugPrivilege	4056	csrsll.exe
Token: SeDebugPrivilege	4056	csrsll.exe
Token: SeDebugPrivilege	4056	csrsll.exe
Token: SeDebugPrivilege	4056	csrsll.exe
Token: SeDebugPrivilege	4056	csrsll.exe
Token: SeDebugPrivilege	4056	csrsll.exe
Token: SeDebugPrivilege	4056	csrsll.exe
Token: SeDebugPrivilege	4056	csrsll.exe
Token: SeDebugPrivilege	4056	csrsll.exe
Token: SeDebugPrivilege	4056	csrsll.exe
Token: SeDebugPrivilege	4056	csrsll.exe
Token: SeDebugPrivilege	4056	csrsll.exe
Token: SeDebugPrivilege	4056	csrsll.exe
Token: SeDebugPrivilege	4056	csrsll.exe
Token: SeDebugPrivilege	4056	csrsll.exe
Token: SeDebugPrivilege	4056	csrsll.exe
Token: SeDebugPrivilege	4056	csrsll.exe
Token: SeDebugPrivilege	4056	csrsll.exe
Token: SeDebugPrivilege	4056	csrsll.exe
Token: SeDebugPrivilege	4056	csrsll.exe
Token: SeDebugPrivilege	4056	csrsll.exe
Token: SeDebugPrivilege	4056	csrsll.exe
Token: SeDebugPrivilege	4056	csrsll.exe
Token: SeDebugPrivilege	4056	csrsll.exe
Token: SeDebugPrivilege	4056	csrsll.exe
Token: SeDebugPrivilege	4056	csrsll.exe
Token: SeDebugPrivilege	4056	csrsll.exe
Token: SeDebugPrivilege	4056	csrsll.exe
Token: SeDebugPrivilege	4056	csrsll.exe
Token: SeDebugPrivilege	4056	csrsll.exe
Token: SeDebugPrivilege	4056	csrsll.exe
Token: SeDebugPrivilege	4056	csrsll.exe
Token: SeDebugPrivilege	4056	csrsll.exe
Token: SeDebugPrivilege	4056	csrsll.exe
Token: SeDebugPrivilege	4056	csrsll.exe
Token: SeDebugPrivilege	4056	csrsll.exe
Token: SeDebugPrivilege	4056	csrsll.exe
Token: SeDebugPrivilege	4056	csrsll.exe
Token: SeDebugPrivilege	4056	csrsll.exe
Token: SeDebugPrivilege	4056	csrsll.exe
Token: SeDebugPrivilege	4056	csrsll.exe
Token: SeDebugPrivilege	4056	csrsll.exe
Token: SeDebugPrivilege	4056	csrsll.exe
Token: SeDebugPrivilege	4056	csrsll.exe
Token: SeDebugPrivilege	4056	csrsll.exe
Token: SeDebugPrivilege	4056	csrsll.exe
Token: SeDebugPrivilege	4056	csrsll.exe
Token: SeDebugPrivilege	4056	csrsll.exe
Token: SeDebugPrivilege	4056	csrsll.exe
Token: SeDebugPrivilege	4056	csrsll.exe
Token: SeDebugPrivilege	4056	csrsll.exe
Token: SeDebugPrivilege	4056	csrsll.exe
Token: SeDebugPrivilege	4056	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
436	6c28306cd8f9c5c88b8c4ec9ffbc4b87597715fce46127ed15522765769f5c2b.exe
1008	6c28306cd8f9c5c88b8c4ec9ffbc4b87597715fce46127ed15522765769f5c2b.exe
2712	csrsll.exe
4056	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 436 wrote to memory of 1008	436	6c28306cd8f9c5c88b8c4ec9ffbc4b87597715fce46127ed15522765769f5c2b.exe	82
PID 436 wrote to memory of 1008	436	6c28306cd8f9c5c88b8c4ec9ffbc4b87597715fce46127ed15522765769f5c2b.exe	82
PID 436 wrote to memory of 1008	436	6c28306cd8f9c5c88b8c4ec9ffbc4b87597715fce46127ed15522765769f5c2b.exe	82
PID 436 wrote to memory of 1008	436	6c28306cd8f9c5c88b8c4ec9ffbc4b87597715fce46127ed15522765769f5c2b.exe	82
PID 436 wrote to memory of 1008	436	6c28306cd8f9c5c88b8c4ec9ffbc4b87597715fce46127ed15522765769f5c2b.exe	82
PID 436 wrote to memory of 1008	436	6c28306cd8f9c5c88b8c4ec9ffbc4b87597715fce46127ed15522765769f5c2b.exe	82
PID 436 wrote to memory of 1008	436	6c28306cd8f9c5c88b8c4ec9ffbc4b87597715fce46127ed15522765769f5c2b.exe	82
PID 436 wrote to memory of 1008	436	6c28306cd8f9c5c88b8c4ec9ffbc4b87597715fce46127ed15522765769f5c2b.exe	82
PID 1008 wrote to memory of 3500	1008	6c28306cd8f9c5c88b8c4ec9ffbc4b87597715fce46127ed15522765769f5c2b.exe	83
PID 1008 wrote to memory of 3500	1008	6c28306cd8f9c5c88b8c4ec9ffbc4b87597715fce46127ed15522765769f5c2b.exe	83
PID 1008 wrote to memory of 3500	1008	6c28306cd8f9c5c88b8c4ec9ffbc4b87597715fce46127ed15522765769f5c2b.exe	83
PID 3500 wrote to memory of 3520	3500	cmd.exe	86
PID 3500 wrote to memory of 3520	3500	cmd.exe	86
PID 3500 wrote to memory of 3520	3500	cmd.exe	86
PID 1008 wrote to memory of 2712	1008	6c28306cd8f9c5c88b8c4ec9ffbc4b87597715fce46127ed15522765769f5c2b.exe	87
PID 1008 wrote to memory of 2712	1008	6c28306cd8f9c5c88b8c4ec9ffbc4b87597715fce46127ed15522765769f5c2b.exe	87
PID 1008 wrote to memory of 2712	1008	6c28306cd8f9c5c88b8c4ec9ffbc4b87597715fce46127ed15522765769f5c2b.exe	87
PID 2712 wrote to memory of 4056	2712	csrsll.exe	93
PID 2712 wrote to memory of 4056	2712	csrsll.exe	93
PID 2712 wrote to memory of 4056	2712	csrsll.exe	93
PID 2712 wrote to memory of 4056	2712	csrsll.exe	93
PID 2712 wrote to memory of 4056	2712	csrsll.exe	93
PID 2712 wrote to memory of 4056	2712	csrsll.exe	93
PID 2712 wrote to memory of 4056	2712	csrsll.exe	93
PID 2712 wrote to memory of 4056	2712	csrsll.exe	93
PID 2712 wrote to memory of 2644	2712	csrsll.exe	94
PID 2712 wrote to memory of 2644	2712	csrsll.exe	94
PID 2712 wrote to memory of 2644	2712	csrsll.exe	94
PID 2712 wrote to memory of 2644	2712	csrsll.exe	94
PID 2712 wrote to memory of 2644	2712	csrsll.exe	94
PID 2712 wrote to memory of 2644	2712	csrsll.exe	94
PID 2712 wrote to memory of 2644	2712	csrsll.exe	94
PID 2712 wrote to memory of 2644	2712	csrsll.exe	94

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:436
- 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:1008
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\OKKWT.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3500
  - - 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:3520
- - 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:2712
  - - 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:4056
  - - 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:2644

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\OKKWT.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
34c22ea85d5676d461254cca812316ca

SHA1
98f76f9dae8fecb432ccc58d5fa8b507000de794

SHA256
436058afd6a23726453668f79cadd536d20e446df64e2d57fa0d92bd3f2e1290

SHA512
6db098edfe122c929c82330ec6340bd2431857ca744d5d9e50c4b8757dc4505b3a6a0414295b773a79841c68a500670b0de3d8d1f131e71dd0bcd680098f4172

Download Submit
memory/436-11-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/436-3-0x0000000002B70000-0x0000000002B72000-memory.dmp

Filesize
8KB

Download
memory/436-4-0x0000000002C80000-0x0000000002C82000-memory.dmp

Filesize
8KB

Download
memory/436-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/436-6-0x0000000002CA0000-0x0000000002CA2000-memory.dmp

Filesize
8KB

Download
memory/436-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1008-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1008-12-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1008-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1008-58-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/1008-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1008-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2644-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2644-46-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2644-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2644-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2644-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2644-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2712-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2712-57-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2712-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2712-35-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4056-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads