modiloader | 03c68ffd1240fc1c72c0c48e7d561fe1a112d2298b364bcb700a08ce228f4e04

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
20-11-2024 19:14

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General

Target

03c68ffd1240fc1c72c0c48e7d561fe1a112d2298b364bcb700a08ce228f4e04.exe
Size

90KB
MD5

d777625640401cd2dc22065f588e9f38
SHA1

ab83cbdab6505a1213ec41ccedc67e34fd177466
SHA256

03c68ffd1240fc1c72c0c48e7d561fe1a112d2298b364bcb700a08ce228f4e04
SHA512

75a116c283f9b1413101d4dffe20d01d4a1fc275535d02c0db136542fe7998481dc3b8d5b1709be06e38f346aa469b0f39e4c808282ff6628cbef1c83903d6b8
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDK:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3Y

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/4220-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4220-57-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4220-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4220-64-0x0000000000400000-0x0000000000414000-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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	03c68ffd1240fc1c72c0c48e7d561fe1a112d2298b364bcb700a08ce228f4e04.exe

Executes dropped EXE 3 IoCs

pid	Process
3028	csrsll.exe
3392	csrsll.exe
4220	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-1-5-21-1045960512-3948844814-3059691613-1000\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 4072 set thread context of 3660	4072	03c68ffd1240fc1c72c0c48e7d561fe1a112d2298b364bcb700a08ce228f4e04.exe	88
PID 3028 set thread context of 3392	3028	csrsll.exe	101
PID 3028 set thread context of 4220	3028	csrsll.exe	102

UPX packed file 21 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4072-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4072-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3660-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3660-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3660-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4072-14-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3660-12-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0008000000023c99-33.dat	upx
behavioral2/memory/3028-37-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3660-41-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3028-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3028-43-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4220-47-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4220-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4220-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3028-59-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4220-57-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4220-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3660-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3392-63-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4220-64-0x0000000000400000-0x0000000000414000-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	03c68ffd1240fc1c72c0c48e7d561fe1a112d2298b364bcb700a08ce228f4e04.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	03c68ffd1240fc1c72c0c48e7d561fe1a112d2298b364bcb700a08ce228f4e04.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3392	csrsll.exe
Token: SeDebugPrivilege	3392	csrsll.exe
Token: SeDebugPrivilege	3392	csrsll.exe
Token: SeDebugPrivilege	3392	csrsll.exe
Token: SeDebugPrivilege	3392	csrsll.exe
Token: SeDebugPrivilege	3392	csrsll.exe
Token: SeDebugPrivilege	3392	csrsll.exe
Token: SeDebugPrivilege	3392	csrsll.exe
Token: SeDebugPrivilege	3392	csrsll.exe
Token: SeDebugPrivilege	3392	csrsll.exe
Token: SeDebugPrivilege	3392	csrsll.exe
Token: SeDebugPrivilege	3392	csrsll.exe
Token: SeDebugPrivilege	3392	csrsll.exe
Token: SeDebugPrivilege	3392	csrsll.exe
Token: SeDebugPrivilege	3392	csrsll.exe
Token: SeDebugPrivilege	3392	csrsll.exe
Token: SeDebugPrivilege	3392	csrsll.exe
Token: SeDebugPrivilege	3392	csrsll.exe
Token: SeDebugPrivilege	3392	csrsll.exe
Token: SeDebugPrivilege	3392	csrsll.exe
Token: SeDebugPrivilege	3392	csrsll.exe
Token: SeDebugPrivilege	3392	csrsll.exe
Token: SeDebugPrivilege	3392	csrsll.exe
Token: SeDebugPrivilege	3392	csrsll.exe
Token: SeDebugPrivilege	3392	csrsll.exe
Token: SeDebugPrivilege	3392	csrsll.exe
Token: SeDebugPrivilege	3392	csrsll.exe
Token: SeDebugPrivilege	3392	csrsll.exe
Token: SeDebugPrivilege	3392	csrsll.exe
Token: SeDebugPrivilege	3392	csrsll.exe
Token: SeDebugPrivilege	3392	csrsll.exe
Token: SeDebugPrivilege	3392	csrsll.exe
Token: SeDebugPrivilege	3392	csrsll.exe
Token: SeDebugPrivilege	3392	csrsll.exe
Token: SeDebugPrivilege	3392	csrsll.exe
Token: SeDebugPrivilege	3392	csrsll.exe
Token: SeDebugPrivilege	3392	csrsll.exe
Token: SeDebugPrivilege	3392	csrsll.exe
Token: SeDebugPrivilege	3392	csrsll.exe
Token: SeDebugPrivilege	3392	csrsll.exe
Token: SeDebugPrivilege	3392	csrsll.exe
Token: SeDebugPrivilege	3392	csrsll.exe
Token: SeDebugPrivilege	3392	csrsll.exe
Token: SeDebugPrivilege	3392	csrsll.exe
Token: SeDebugPrivilege	3392	csrsll.exe
Token: SeDebugPrivilege	3392	csrsll.exe
Token: SeDebugPrivilege	3392	csrsll.exe
Token: SeDebugPrivilege	3392	csrsll.exe
Token: SeDebugPrivilege	3392	csrsll.exe
Token: SeDebugPrivilege	3392	csrsll.exe
Token: SeDebugPrivilege	3392	csrsll.exe
Token: SeDebugPrivilege	3392	csrsll.exe
Token: SeDebugPrivilege	3392	csrsll.exe
Token: SeDebugPrivilege	3392	csrsll.exe
Token: SeDebugPrivilege	3392	csrsll.exe
Token: SeDebugPrivilege	3392	csrsll.exe
Token: SeDebugPrivilege	3392	csrsll.exe
Token: SeDebugPrivilege	3392	csrsll.exe
Token: SeDebugPrivilege	3392	csrsll.exe
Token: SeDebugPrivilege	3392	csrsll.exe
Token: SeDebugPrivilege	3392	csrsll.exe
Token: SeDebugPrivilege	3392	csrsll.exe
Token: SeDebugPrivilege	3392	csrsll.exe
Token: SeDebugPrivilege	3392	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4072	03c68ffd1240fc1c72c0c48e7d561fe1a112d2298b364bcb700a08ce228f4e04.exe
3660	03c68ffd1240fc1c72c0c48e7d561fe1a112d2298b364bcb700a08ce228f4e04.exe
3028	csrsll.exe
3392	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4072 wrote to memory of 3660	4072	03c68ffd1240fc1c72c0c48e7d561fe1a112d2298b364bcb700a08ce228f4e04.exe	88
PID 4072 wrote to memory of 3660	4072	03c68ffd1240fc1c72c0c48e7d561fe1a112d2298b364bcb700a08ce228f4e04.exe	88
PID 4072 wrote to memory of 3660	4072	03c68ffd1240fc1c72c0c48e7d561fe1a112d2298b364bcb700a08ce228f4e04.exe	88
PID 4072 wrote to memory of 3660	4072	03c68ffd1240fc1c72c0c48e7d561fe1a112d2298b364bcb700a08ce228f4e04.exe	88
PID 4072 wrote to memory of 3660	4072	03c68ffd1240fc1c72c0c48e7d561fe1a112d2298b364bcb700a08ce228f4e04.exe	88
PID 4072 wrote to memory of 3660	4072	03c68ffd1240fc1c72c0c48e7d561fe1a112d2298b364bcb700a08ce228f4e04.exe	88
PID 4072 wrote to memory of 3660	4072	03c68ffd1240fc1c72c0c48e7d561fe1a112d2298b364bcb700a08ce228f4e04.exe	88
PID 4072 wrote to memory of 3660	4072	03c68ffd1240fc1c72c0c48e7d561fe1a112d2298b364bcb700a08ce228f4e04.exe	88
PID 3660 wrote to memory of 1852	3660	03c68ffd1240fc1c72c0c48e7d561fe1a112d2298b364bcb700a08ce228f4e04.exe	91
PID 3660 wrote to memory of 1852	3660	03c68ffd1240fc1c72c0c48e7d561fe1a112d2298b364bcb700a08ce228f4e04.exe	91
PID 3660 wrote to memory of 1852	3660	03c68ffd1240fc1c72c0c48e7d561fe1a112d2298b364bcb700a08ce228f4e04.exe	91
PID 1852 wrote to memory of 1392	1852	cmd.exe	95
PID 1852 wrote to memory of 1392	1852	cmd.exe	95
PID 1852 wrote to memory of 1392	1852	cmd.exe	95
PID 3660 wrote to memory of 3028	3660	03c68ffd1240fc1c72c0c48e7d561fe1a112d2298b364bcb700a08ce228f4e04.exe	96
PID 3660 wrote to memory of 3028	3660	03c68ffd1240fc1c72c0c48e7d561fe1a112d2298b364bcb700a08ce228f4e04.exe	96
PID 3660 wrote to memory of 3028	3660	03c68ffd1240fc1c72c0c48e7d561fe1a112d2298b364bcb700a08ce228f4e04.exe	96
PID 3028 wrote to memory of 3392	3028	csrsll.exe	101
PID 3028 wrote to memory of 3392	3028	csrsll.exe	101
PID 3028 wrote to memory of 3392	3028	csrsll.exe	101
PID 3028 wrote to memory of 3392	3028	csrsll.exe	101
PID 3028 wrote to memory of 3392	3028	csrsll.exe	101
PID 3028 wrote to memory of 3392	3028	csrsll.exe	101
PID 3028 wrote to memory of 3392	3028	csrsll.exe	101
PID 3028 wrote to memory of 3392	3028	csrsll.exe	101
PID 3028 wrote to memory of 4220	3028	csrsll.exe	102
PID 3028 wrote to memory of 4220	3028	csrsll.exe	102
PID 3028 wrote to memory of 4220	3028	csrsll.exe	102
PID 3028 wrote to memory of 4220	3028	csrsll.exe	102
PID 3028 wrote to memory of 4220	3028	csrsll.exe	102
PID 3028 wrote to memory of 4220	3028	csrsll.exe	102
PID 3028 wrote to memory of 4220	3028	csrsll.exe	102
PID 3028 wrote to memory of 4220	3028	csrsll.exe	102

C:\Users\Admin\AppData\Local\Temp\03c68ffd1240fc1c72c0c48e7d561fe1a112d2298b364bcb700a08ce228f4e04.exe
"C:\Users\Admin\AppData\Local\Temp\03c68ffd1240fc1c72c0c48e7d561fe1a112d2298b364bcb700a08ce228f4e04.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4072
- C:\Users\Admin\AppData\Local\Temp\03c68ffd1240fc1c72c0c48e7d561fe1a112d2298b364bcb700a08ce228f4e04.exe
  "C:\Users\Admin\AppData\Local\Temp\03c68ffd1240fc1c72c0c48e7d561fe1a112d2298b364bcb700a08ce228f4e04.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3660
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\DEBKC.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1852
  - - 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:1392
- - 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:3028
  - - 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:3392
  - - 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:4220

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\DEBKC.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
6b28caf2c061f8b45801214fb88320aa

SHA1
fd9688ad2972b0403163400a5d6eed2b24d512c4

SHA256
6e073d37c69acdaad153fa19a8c0969fb07102df8a3aa917d0e114a5a3de19f8

SHA512
e8efb57d97f02c7aae99937560c6006bef22fb9f5b4fd76e47ee4e859aa445878b03b7b9a5cae4d1ce5252528f331d2b8fb4ded54e468c49e0fcffe1917763a4

Download Submit
memory/3028-59-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3028-43-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3028-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3028-37-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3392-63-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3660-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3660-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3660-12-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3660-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3660-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3660-41-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3660-60-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/4072-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4072-6-0x0000000002CA0000-0x0000000002CA2000-memory.dmp

Filesize
8KB

Download
memory/4072-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4072-14-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4072-3-0x0000000002B60000-0x0000000002B62000-memory.dmp

Filesize
8KB

Download
memory/4072-4-0x0000000002C70000-0x0000000002C72000-memory.dmp

Filesize
8KB

Download
memory/4220-47-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4220-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4220-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4220-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4220-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4220-64-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads