modiloader | 66ca8312a397b4ea415477eca53b03284591ec5ff8a6a2913d457f598cf98d84

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
16/12/2024, 11:12

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General

Target

66ca8312a397b4ea415477eca53b03284591ec5ff8a6a2913d457f598cf98d84N.exe
Size

300KB
MD5

cf6a09d163879310636ffbcba848c830
SHA1

b91e1ab90267f1c0bd036e6fee9dfdaf43167ced
SHA256

66ca8312a397b4ea415477eca53b03284591ec5ff8a6a2913d457f598cf98d84
SHA512

190cd126e0a367ca606566fc3e3aba3f54186ea1f98e3f6909de91ace96a7e0a2788f54e35be5afd4f91675bb0afe76b4f86e75ebf0ee4b30e7441e0e65957d6
SSDEEP

3072:Ue2A0wxDqUpM5scww4chO+O1BmP5DG0sg3i4XZ9WvDZHwdRX/L+gP38GP:UsxD5cwohO+O1sVG0/pZ6iPC8t

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 3 IoCs

resource	yara_rule
behavioral2/memory/1076-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1076-50-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1076-58-0x0000000000400000-0x0000000000414000-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	66ca8312a397b4ea415477eca53b03284591ec5ff8a6a2913d457f598cf98d84N.exe

Executes dropped EXE 3 IoCs

pid	Process
4932	csrsll.exe
1208	csrsll.exe
1076	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 1512 set thread context of 4680	1512	66ca8312a397b4ea415477eca53b03284591ec5ff8a6a2913d457f598cf98d84N.exe	86
PID 4932 set thread context of 1208	4932	csrsll.exe	95
PID 4932 set thread context of 1076	4932	csrsll.exe	96

UPX packed file 11 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4680-6-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4680-8-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4680-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4680-36-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1076-46-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1076-49-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1076-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1076-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4680-55-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1208-57-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1076-58-0x0000000000400000-0x0000000000414000-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	66ca8312a397b4ea415477eca53b03284591ec5ff8a6a2913d457f598cf98d84N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	66ca8312a397b4ea415477eca53b03284591ec5ff8a6a2913d457f598cf98d84N.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

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1208	csrsll.exe
Token: SeDebugPrivilege	1208	csrsll.exe
Token: SeDebugPrivilege	1208	csrsll.exe
Token: SeDebugPrivilege	1208	csrsll.exe
Token: SeDebugPrivilege	1208	csrsll.exe
Token: SeDebugPrivilege	1208	csrsll.exe
Token: SeDebugPrivilege	1208	csrsll.exe
Token: SeDebugPrivilege	1208	csrsll.exe
Token: SeDebugPrivilege	1208	csrsll.exe
Token: SeDebugPrivilege	1208	csrsll.exe
Token: SeDebugPrivilege	1208	csrsll.exe
Token: SeDebugPrivilege	1208	csrsll.exe
Token: SeDebugPrivilege	1208	csrsll.exe
Token: SeDebugPrivilege	1208	csrsll.exe
Token: SeDebugPrivilege	1208	csrsll.exe
Token: SeDebugPrivilege	1208	csrsll.exe
Token: SeDebugPrivilege	1208	csrsll.exe
Token: SeDebugPrivilege	1208	csrsll.exe
Token: SeDebugPrivilege	1208	csrsll.exe
Token: SeDebugPrivilege	1208	csrsll.exe
Token: SeDebugPrivilege	1208	csrsll.exe
Token: SeDebugPrivilege	1208	csrsll.exe
Token: SeDebugPrivilege	1208	csrsll.exe
Token: SeDebugPrivilege	1208	csrsll.exe
Token: SeDebugPrivilege	1208	csrsll.exe
Token: SeDebugPrivilege	1208	csrsll.exe
Token: SeDebugPrivilege	1208	csrsll.exe
Token: SeDebugPrivilege	1208	csrsll.exe
Token: SeDebugPrivilege	1208	csrsll.exe
Token: SeDebugPrivilege	1208	csrsll.exe
Token: SeDebugPrivilege	1208	csrsll.exe
Token: SeDebugPrivilege	1208	csrsll.exe
Token: SeDebugPrivilege	1208	csrsll.exe
Token: SeDebugPrivilege	1208	csrsll.exe
Token: SeDebugPrivilege	1208	csrsll.exe
Token: SeDebugPrivilege	1208	csrsll.exe
Token: SeDebugPrivilege	1208	csrsll.exe
Token: SeDebugPrivilege	1208	csrsll.exe
Token: SeDebugPrivilege	1208	csrsll.exe
Token: SeDebugPrivilege	1208	csrsll.exe
Token: SeDebugPrivilege	1208	csrsll.exe
Token: SeDebugPrivilege	1208	csrsll.exe
Token: SeDebugPrivilege	1208	csrsll.exe
Token: SeDebugPrivilege	1208	csrsll.exe
Token: SeDebugPrivilege	1208	csrsll.exe
Token: SeDebugPrivilege	1208	csrsll.exe
Token: SeDebugPrivilege	1208	csrsll.exe
Token: SeDebugPrivilege	1208	csrsll.exe
Token: SeDebugPrivilege	1208	csrsll.exe
Token: SeDebugPrivilege	1208	csrsll.exe
Token: SeDebugPrivilege	1208	csrsll.exe
Token: SeDebugPrivilege	1208	csrsll.exe
Token: SeDebugPrivilege	1208	csrsll.exe
Token: SeDebugPrivilege	1208	csrsll.exe
Token: SeDebugPrivilege	1208	csrsll.exe
Token: SeDebugPrivilege	1208	csrsll.exe
Token: SeDebugPrivilege	1208	csrsll.exe
Token: SeDebugPrivilege	1208	csrsll.exe
Token: SeDebugPrivilege	1208	csrsll.exe
Token: SeDebugPrivilege	1208	csrsll.exe
Token: SeDebugPrivilege	1208	csrsll.exe
Token: SeDebugPrivilege	1208	csrsll.exe
Token: SeDebugPrivilege	1208	csrsll.exe
Token: SeDebugPrivilege	1208	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1512	66ca8312a397b4ea415477eca53b03284591ec5ff8a6a2913d457f598cf98d84N.exe
4680	66ca8312a397b4ea415477eca53b03284591ec5ff8a6a2913d457f598cf98d84N.exe
4932	csrsll.exe
1208	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 1512 wrote to memory of 4680	1512	66ca8312a397b4ea415477eca53b03284591ec5ff8a6a2913d457f598cf98d84N.exe	86
PID 1512 wrote to memory of 4680	1512	66ca8312a397b4ea415477eca53b03284591ec5ff8a6a2913d457f598cf98d84N.exe	86
PID 1512 wrote to memory of 4680	1512	66ca8312a397b4ea415477eca53b03284591ec5ff8a6a2913d457f598cf98d84N.exe	86
PID 1512 wrote to memory of 4680	1512	66ca8312a397b4ea415477eca53b03284591ec5ff8a6a2913d457f598cf98d84N.exe	86
PID 1512 wrote to memory of 4680	1512	66ca8312a397b4ea415477eca53b03284591ec5ff8a6a2913d457f598cf98d84N.exe	86
PID 1512 wrote to memory of 4680	1512	66ca8312a397b4ea415477eca53b03284591ec5ff8a6a2913d457f598cf98d84N.exe	86
PID 1512 wrote to memory of 4680	1512	66ca8312a397b4ea415477eca53b03284591ec5ff8a6a2913d457f598cf98d84N.exe	86
PID 1512 wrote to memory of 4680	1512	66ca8312a397b4ea415477eca53b03284591ec5ff8a6a2913d457f598cf98d84N.exe	86
PID 4680 wrote to memory of 4892	4680	66ca8312a397b4ea415477eca53b03284591ec5ff8a6a2913d457f598cf98d84N.exe	88
PID 4680 wrote to memory of 4892	4680	66ca8312a397b4ea415477eca53b03284591ec5ff8a6a2913d457f598cf98d84N.exe	88
PID 4680 wrote to memory of 4892	4680	66ca8312a397b4ea415477eca53b03284591ec5ff8a6a2913d457f598cf98d84N.exe	88
PID 4892 wrote to memory of 412	4892	cmd.exe	91
PID 4892 wrote to memory of 412	4892	cmd.exe	91
PID 4892 wrote to memory of 412	4892	cmd.exe	91
PID 4680 wrote to memory of 4932	4680	66ca8312a397b4ea415477eca53b03284591ec5ff8a6a2913d457f598cf98d84N.exe	92
PID 4680 wrote to memory of 4932	4680	66ca8312a397b4ea415477eca53b03284591ec5ff8a6a2913d457f598cf98d84N.exe	92
PID 4680 wrote to memory of 4932	4680	66ca8312a397b4ea415477eca53b03284591ec5ff8a6a2913d457f598cf98d84N.exe	92
PID 4932 wrote to memory of 1208	4932	csrsll.exe	95
PID 4932 wrote to memory of 1208	4932	csrsll.exe	95
PID 4932 wrote to memory of 1208	4932	csrsll.exe	95
PID 4932 wrote to memory of 1208	4932	csrsll.exe	95
PID 4932 wrote to memory of 1208	4932	csrsll.exe	95
PID 4932 wrote to memory of 1208	4932	csrsll.exe	95
PID 4932 wrote to memory of 1208	4932	csrsll.exe	95
PID 4932 wrote to memory of 1208	4932	csrsll.exe	95
PID 4932 wrote to memory of 1076	4932	csrsll.exe	96
PID 4932 wrote to memory of 1076	4932	csrsll.exe	96
PID 4932 wrote to memory of 1076	4932	csrsll.exe	96
PID 4932 wrote to memory of 1076	4932	csrsll.exe	96
PID 4932 wrote to memory of 1076	4932	csrsll.exe	96
PID 4932 wrote to memory of 1076	4932	csrsll.exe	96
PID 4932 wrote to memory of 1076	4932	csrsll.exe	96
PID 4932 wrote to memory of 1076	4932	csrsll.exe	96

C:\Users\Admin\AppData\Local\Temp\66ca8312a397b4ea415477eca53b03284591ec5ff8a6a2913d457f598cf98d84N.exe
"C:\Users\Admin\AppData\Local\Temp\66ca8312a397b4ea415477eca53b03284591ec5ff8a6a2913d457f598cf98d84N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1512
- C:\Users\Admin\AppData\Local\Temp\66ca8312a397b4ea415477eca53b03284591ec5ff8a6a2913d457f598cf98d84N.exe
  "C:\Users\Admin\AppData\Local\Temp\66ca8312a397b4ea415477eca53b03284591ec5ff8a6a2913d457f598cf98d84N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4680
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\JDIXY.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4892
  - - 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:412
- - 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:4932
  - - 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:1208
  - - 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:1076

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\JDIXY.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
300KB

MD5
5b9c948b1f434743d3417970c7ccb25d

SHA1
f0de022c74d16f1be23f93eef727f3b60b337768

SHA256
309afd71afbe3853f21d8c944fc081852db9111ab6a29e13ad07e308d8f41ea3

SHA512
6c4590ed8857056db16732314ad2966be213a93b8d76f080d1c33ac88dd22810ffd248a7ddf66a0d626bb7d2e34dd762a56c310f775eec5b55ff93e3ecb0e775

Download Submit
memory/1076-46-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1076-58-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1076-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1076-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1076-49-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1208-57-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1512-3-0x00000000022F0000-0x00000000022F2000-memory.dmp

Filesize
8KB

Download
memory/1512-4-0x0000000002300000-0x0000000002302000-memory.dmp

Filesize
8KB

Download
memory/1512-5-0x0000000002320000-0x0000000002322000-memory.dmp

Filesize
8KB

Download
memory/1512-0-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/4680-8-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4680-36-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4680-55-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4680-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4680-6-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4932-38-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/4932-37-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/4932-54-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads