modiloader | 0f1f3ae76ba3f30eb24e802d3c12fbf462d85dae3ae4eec71058bf6d0c33dafe

Analysis

max time kernel
149s
max time network
146s
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 19:42

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General

Target

0f1f3ae76ba3f30eb24e802d3c12fbf462d85dae3ae4eec71058bf6d0c33dafe.exe
Size

90KB
MD5

594a199eee503d801b7c053f6b38ba97
SHA1

1e6e691502fb0cc18e74414691368a9dbd74922f
SHA256

0f1f3ae76ba3f30eb24e802d3c12fbf462d85dae3ae4eec71058bf6d0c33dafe
SHA512

53231153546a1f5935d1224bf715b1cef845c72dd2902b110848e67641f894d4fba52dead44975825ea040c3e92e9fbd6bd785a21e6fd100ad7d0d9d6771688f
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDp:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3r

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/1124-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1124-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1124-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1124-62-0x0000000000400000-0x0000000000414000-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-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	0f1f3ae76ba3f30eb24e802d3c12fbf462d85dae3ae4eec71058bf6d0c33dafe.exe

Executes dropped EXE 3 IoCs

pid	Process
2868	csrsll.exe
1728	csrsll.exe
1124	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-1-5-21-3350944739-639801879-157714471-1000\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 4344 set thread context of 3640	4344	0f1f3ae76ba3f30eb24e802d3c12fbf462d85dae3ae4eec71058bf6d0c33dafe.exe	84
PID 2868 set thread context of 1728	2868	csrsll.exe	101
PID 2868 set thread context of 1124	2868	csrsll.exe	102

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4344-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4344-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3640-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3640-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3640-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4344-12-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x000b000000023b92-29.dat	upx
behavioral2/memory/3640-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2868-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2868-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1124-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1124-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1124-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2868-57-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1124-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1124-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3640-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1728-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1124-62-0x0000000000400000-0x0000000000414000-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	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	0f1f3ae76ba3f30eb24e802d3c12fbf462d85dae3ae4eec71058bf6d0c33dafe.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	0f1f3ae76ba3f30eb24e802d3c12fbf462d85dae3ae4eec71058bf6d0c33dafe.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1728	csrsll.exe
Token: SeDebugPrivilege	1728	csrsll.exe
Token: SeDebugPrivilege	1728	csrsll.exe
Token: SeDebugPrivilege	1728	csrsll.exe
Token: SeDebugPrivilege	1728	csrsll.exe
Token: SeDebugPrivilege	1728	csrsll.exe
Token: SeDebugPrivilege	1728	csrsll.exe
Token: SeDebugPrivilege	1728	csrsll.exe
Token: SeDebugPrivilege	1728	csrsll.exe
Token: SeDebugPrivilege	1728	csrsll.exe
Token: SeDebugPrivilege	1728	csrsll.exe
Token: SeDebugPrivilege	1728	csrsll.exe
Token: SeDebugPrivilege	1728	csrsll.exe
Token: SeDebugPrivilege	1728	csrsll.exe
Token: SeDebugPrivilege	1728	csrsll.exe
Token: SeDebugPrivilege	1728	csrsll.exe
Token: SeDebugPrivilege	1728	csrsll.exe
Token: SeDebugPrivilege	1728	csrsll.exe
Token: SeDebugPrivilege	1728	csrsll.exe
Token: SeDebugPrivilege	1728	csrsll.exe
Token: SeDebugPrivilege	1728	csrsll.exe
Token: SeDebugPrivilege	1728	csrsll.exe
Token: SeDebugPrivilege	1728	csrsll.exe
Token: SeDebugPrivilege	1728	csrsll.exe
Token: SeDebugPrivilege	1728	csrsll.exe
Token: SeDebugPrivilege	1728	csrsll.exe
Token: SeDebugPrivilege	1728	csrsll.exe
Token: SeDebugPrivilege	1728	csrsll.exe
Token: SeDebugPrivilege	1728	csrsll.exe
Token: SeDebugPrivilege	1728	csrsll.exe
Token: SeDebugPrivilege	1728	csrsll.exe
Token: SeDebugPrivilege	1728	csrsll.exe
Token: SeDebugPrivilege	1728	csrsll.exe
Token: SeDebugPrivilege	1728	csrsll.exe
Token: SeDebugPrivilege	1728	csrsll.exe
Token: SeDebugPrivilege	1728	csrsll.exe
Token: SeDebugPrivilege	1728	csrsll.exe
Token: SeDebugPrivilege	1728	csrsll.exe
Token: SeDebugPrivilege	1728	csrsll.exe
Token: SeDebugPrivilege	1728	csrsll.exe
Token: SeDebugPrivilege	1728	csrsll.exe
Token: SeDebugPrivilege	1728	csrsll.exe
Token: SeDebugPrivilege	1728	csrsll.exe
Token: SeDebugPrivilege	1728	csrsll.exe
Token: SeDebugPrivilege	1728	csrsll.exe
Token: SeDebugPrivilege	1728	csrsll.exe
Token: SeDebugPrivilege	1728	csrsll.exe
Token: SeDebugPrivilege	1728	csrsll.exe
Token: SeDebugPrivilege	1728	csrsll.exe
Token: SeDebugPrivilege	1728	csrsll.exe
Token: SeDebugPrivilege	1728	csrsll.exe
Token: SeDebugPrivilege	1728	csrsll.exe
Token: SeDebugPrivilege	1728	csrsll.exe
Token: SeDebugPrivilege	1728	csrsll.exe
Token: SeDebugPrivilege	1728	csrsll.exe
Token: SeDebugPrivilege	1728	csrsll.exe
Token: SeDebugPrivilege	1728	csrsll.exe
Token: SeDebugPrivilege	1728	csrsll.exe
Token: SeDebugPrivilege	1728	csrsll.exe
Token: SeDebugPrivilege	1728	csrsll.exe
Token: SeDebugPrivilege	1728	csrsll.exe
Token: SeDebugPrivilege	1728	csrsll.exe
Token: SeDebugPrivilege	1728	csrsll.exe
Token: SeDebugPrivilege	1728	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4344	0f1f3ae76ba3f30eb24e802d3c12fbf462d85dae3ae4eec71058bf6d0c33dafe.exe
3640	0f1f3ae76ba3f30eb24e802d3c12fbf462d85dae3ae4eec71058bf6d0c33dafe.exe
2868	csrsll.exe
1728	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4344 wrote to memory of 3640	4344	0f1f3ae76ba3f30eb24e802d3c12fbf462d85dae3ae4eec71058bf6d0c33dafe.exe	84
PID 4344 wrote to memory of 3640	4344	0f1f3ae76ba3f30eb24e802d3c12fbf462d85dae3ae4eec71058bf6d0c33dafe.exe	84
PID 4344 wrote to memory of 3640	4344	0f1f3ae76ba3f30eb24e802d3c12fbf462d85dae3ae4eec71058bf6d0c33dafe.exe	84
PID 4344 wrote to memory of 3640	4344	0f1f3ae76ba3f30eb24e802d3c12fbf462d85dae3ae4eec71058bf6d0c33dafe.exe	84
PID 4344 wrote to memory of 3640	4344	0f1f3ae76ba3f30eb24e802d3c12fbf462d85dae3ae4eec71058bf6d0c33dafe.exe	84
PID 4344 wrote to memory of 3640	4344	0f1f3ae76ba3f30eb24e802d3c12fbf462d85dae3ae4eec71058bf6d0c33dafe.exe	84
PID 4344 wrote to memory of 3640	4344	0f1f3ae76ba3f30eb24e802d3c12fbf462d85dae3ae4eec71058bf6d0c33dafe.exe	84
PID 4344 wrote to memory of 3640	4344	0f1f3ae76ba3f30eb24e802d3c12fbf462d85dae3ae4eec71058bf6d0c33dafe.exe	84
PID 3640 wrote to memory of 3044	3640	0f1f3ae76ba3f30eb24e802d3c12fbf462d85dae3ae4eec71058bf6d0c33dafe.exe	87
PID 3640 wrote to memory of 3044	3640	0f1f3ae76ba3f30eb24e802d3c12fbf462d85dae3ae4eec71058bf6d0c33dafe.exe	87
PID 3640 wrote to memory of 3044	3640	0f1f3ae76ba3f30eb24e802d3c12fbf462d85dae3ae4eec71058bf6d0c33dafe.exe	87
PID 3044 wrote to memory of 1020	3044	cmd.exe	92
PID 3044 wrote to memory of 1020	3044	cmd.exe	92
PID 3044 wrote to memory of 1020	3044	cmd.exe	92
PID 3640 wrote to memory of 2868	3640	0f1f3ae76ba3f30eb24e802d3c12fbf462d85dae3ae4eec71058bf6d0c33dafe.exe	93
PID 3640 wrote to memory of 2868	3640	0f1f3ae76ba3f30eb24e802d3c12fbf462d85dae3ae4eec71058bf6d0c33dafe.exe	93
PID 3640 wrote to memory of 2868	3640	0f1f3ae76ba3f30eb24e802d3c12fbf462d85dae3ae4eec71058bf6d0c33dafe.exe	93
PID 2868 wrote to memory of 1728	2868	csrsll.exe	101
PID 2868 wrote to memory of 1728	2868	csrsll.exe	101
PID 2868 wrote to memory of 1728	2868	csrsll.exe	101
PID 2868 wrote to memory of 1728	2868	csrsll.exe	101
PID 2868 wrote to memory of 1728	2868	csrsll.exe	101
PID 2868 wrote to memory of 1728	2868	csrsll.exe	101
PID 2868 wrote to memory of 1728	2868	csrsll.exe	101
PID 2868 wrote to memory of 1728	2868	csrsll.exe	101
PID 2868 wrote to memory of 1124	2868	csrsll.exe	102
PID 2868 wrote to memory of 1124	2868	csrsll.exe	102
PID 2868 wrote to memory of 1124	2868	csrsll.exe	102
PID 2868 wrote to memory of 1124	2868	csrsll.exe	102
PID 2868 wrote to memory of 1124	2868	csrsll.exe	102
PID 2868 wrote to memory of 1124	2868	csrsll.exe	102
PID 2868 wrote to memory of 1124	2868	csrsll.exe	102
PID 2868 wrote to memory of 1124	2868	csrsll.exe	102

C:\Users\Admin\AppData\Local\Temp\0f1f3ae76ba3f30eb24e802d3c12fbf462d85dae3ae4eec71058bf6d0c33dafe.exe
"C:\Users\Admin\AppData\Local\Temp\0f1f3ae76ba3f30eb24e802d3c12fbf462d85dae3ae4eec71058bf6d0c33dafe.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4344
- C:\Users\Admin\AppData\Local\Temp\0f1f3ae76ba3f30eb24e802d3c12fbf462d85dae3ae4eec71058bf6d0c33dafe.exe
  "C:\Users\Admin\AppData\Local\Temp\0f1f3ae76ba3f30eb24e802d3c12fbf462d85dae3ae4eec71058bf6d0c33dafe.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3640
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\INJKV.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3044
  - - 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:1020
- - 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:2868
  - - 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:1728
  - - 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:1124

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\INJKV.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
16b864bbc1e65f3fafac5fc0aa543ae7

SHA1
5452deb2e3e93a224e7850f1fb8f07fb490b40e2

SHA256
90103b7338276a7916ae4005ca579e084c299242e72654db462ba16568307e36

SHA512
e8ba665e7fb65471fdbf2c4b6c170358e76a548f5a221e177a4548de5dc5ee257bd25e86ca8b498e43f94034c470dc46ad80983176ea77c285f26eca3035ec87

Download Submit
memory/1124-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1124-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1124-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1124-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1124-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1124-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1728-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2868-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2868-57-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2868-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3640-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3640-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3640-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3640-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3640-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4344-6-0x0000000002350000-0x0000000002352000-memory.dmp

Filesize
8KB

Download
memory/4344-12-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4344-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4344-4-0x0000000002330000-0x0000000002332000-memory.dmp

Filesize
8KB

Download
memory/4344-3-0x0000000002320000-0x0000000002322000-memory.dmp

Filesize
8KB

Download
memory/4344-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads