modiloader | 9c26829eb4afa60257ac33d7486c7b5ff18d8b0c881c48c0e578cdd73596e3d1

Analysis

max time kernel
148s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
31/12/2024, 06:26

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General

Target
9c26829eb4afa60257ac33d7486c7b5ff18d8b0c881c48c0e578cdd73596e3d1.exe
Size 90KB
Sample241231-g663fsskhs
SHA256 9c26829eb4afa60257ac33d7486c7b5ff18d8b0c881c48c0e578cdd73596e3d1
MD5 a9472c841cf1c8604287eb851073b53d
SHA1 b12851ab57a57c5f1219cdd828217b81a9a9a633
SHA512 2482bdff5b78cf1c113b0bd588ba8a066a18c9e048ecea0764e0f65b7a0d989295e313ac703a83723b39062f6638bc95c5d1801293ed9c8bfd1928f4c330933e
SSDEEP 1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oD+:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3g
MD5 SHA1 SHA512 SSDEEP

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/1244-62-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1244-63-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1244-65-0x0000000000400000-0x0000000000414000-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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	9c26829eb4afa60257ac33d7486c7b5ff18d8b0c881c48c0e578cdd73596e3d1.exe

Executes dropped EXE 3 IoCs

pid	Process
1416	csrsll.exe
4056	csrsll.exe
1244	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-1-5-21-2437139445-1151884604-3026847218-1000\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 1276 set thread context of 3092	1276	9c26829eb4afa60257ac33d7486c7b5ff18d8b0c881c48c0e578cdd73596e3d1.exe	83
PID 1416 set thread context of 4056	1416	csrsll.exe	97
PID 1416 set thread context of 1244	1416	csrsll.exe	98

UPX packed file 21 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1276-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1276-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3092-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3092-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1276-11-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3092-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000b000000023b8c-29.dat	upx
behavioral2/memory/1416-36-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3092-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1416-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1416-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1244-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1416-52-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1244-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1416-58-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1244-62-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3092-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1244-46-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1244-63-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4056-64-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1244-65-0x0000000000400000-0x0000000000414000-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	9c26829eb4afa60257ac33d7486c7b5ff18d8b0c881c48c0e578cdd73596e3d1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	9c26829eb4afa60257ac33d7486c7b5ff18d8b0c881c48c0e578cdd73596e3d1.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

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
1276	9c26829eb4afa60257ac33d7486c7b5ff18d8b0c881c48c0e578cdd73596e3d1.exe
3092	9c26829eb4afa60257ac33d7486c7b5ff18d8b0c881c48c0e578cdd73596e3d1.exe
1416	csrsll.exe
4056	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 1276 wrote to memory of 3092	1276	9c26829eb4afa60257ac33d7486c7b5ff18d8b0c881c48c0e578cdd73596e3d1.exe	83
PID 1276 wrote to memory of 3092	1276	9c26829eb4afa60257ac33d7486c7b5ff18d8b0c881c48c0e578cdd73596e3d1.exe	83
PID 1276 wrote to memory of 3092	1276	9c26829eb4afa60257ac33d7486c7b5ff18d8b0c881c48c0e578cdd73596e3d1.exe	83
PID 1276 wrote to memory of 3092	1276	9c26829eb4afa60257ac33d7486c7b5ff18d8b0c881c48c0e578cdd73596e3d1.exe	83
PID 1276 wrote to memory of 3092	1276	9c26829eb4afa60257ac33d7486c7b5ff18d8b0c881c48c0e578cdd73596e3d1.exe	83
PID 1276 wrote to memory of 3092	1276	9c26829eb4afa60257ac33d7486c7b5ff18d8b0c881c48c0e578cdd73596e3d1.exe	83
PID 1276 wrote to memory of 3092	1276	9c26829eb4afa60257ac33d7486c7b5ff18d8b0c881c48c0e578cdd73596e3d1.exe	83
PID 1276 wrote to memory of 3092	1276	9c26829eb4afa60257ac33d7486c7b5ff18d8b0c881c48c0e578cdd73596e3d1.exe	83
PID 3092 wrote to memory of 3476	3092	9c26829eb4afa60257ac33d7486c7b5ff18d8b0c881c48c0e578cdd73596e3d1.exe	84
PID 3092 wrote to memory of 3476	3092	9c26829eb4afa60257ac33d7486c7b5ff18d8b0c881c48c0e578cdd73596e3d1.exe	84
PID 3092 wrote to memory of 3476	3092	9c26829eb4afa60257ac33d7486c7b5ff18d8b0c881c48c0e578cdd73596e3d1.exe	84
PID 3476 wrote to memory of 3896	3476	cmd.exe	88
PID 3476 wrote to memory of 3896	3476	cmd.exe	88
PID 3476 wrote to memory of 3896	3476	cmd.exe	88
PID 3092 wrote to memory of 1416	3092	9c26829eb4afa60257ac33d7486c7b5ff18d8b0c881c48c0e578cdd73596e3d1.exe	89
PID 3092 wrote to memory of 1416	3092	9c26829eb4afa60257ac33d7486c7b5ff18d8b0c881c48c0e578cdd73596e3d1.exe	89
PID 3092 wrote to memory of 1416	3092	9c26829eb4afa60257ac33d7486c7b5ff18d8b0c881c48c0e578cdd73596e3d1.exe	89
PID 1416 wrote to memory of 4056	1416	csrsll.exe	97
PID 1416 wrote to memory of 4056	1416	csrsll.exe	97
PID 1416 wrote to memory of 4056	1416	csrsll.exe	97
PID 1416 wrote to memory of 4056	1416	csrsll.exe	97
PID 1416 wrote to memory of 4056	1416	csrsll.exe	97
PID 1416 wrote to memory of 4056	1416	csrsll.exe	97
PID 1416 wrote to memory of 4056	1416	csrsll.exe	97
PID 1416 wrote to memory of 4056	1416	csrsll.exe	97
PID 1416 wrote to memory of 1244	1416	csrsll.exe	98
PID 1416 wrote to memory of 1244	1416	csrsll.exe	98
PID 1416 wrote to memory of 1244	1416	csrsll.exe	98
PID 1416 wrote to memory of 1244	1416	csrsll.exe	98
PID 1416 wrote to memory of 1244	1416	csrsll.exe	98
PID 1416 wrote to memory of 1244	1416	csrsll.exe	98
PID 1416 wrote to memory of 1244	1416	csrsll.exe	98
PID 1416 wrote to memory of 1244	1416	csrsll.exe	98

C:\Users\Admin\AppData\Local\Temp\9c26829eb4afa60257ac33d7486c7b5ff18d8b0c881c48c0e578cdd73596e3d1.exe
"C:\Users\Admin\AppData\Local\Temp\9c26829eb4afa60257ac33d7486c7b5ff18d8b0c881c48c0e578cdd73596e3d1.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1276
- C:\Users\Admin\AppData\Local\Temp\9c26829eb4afa60257ac33d7486c7b5ff18d8b0c881c48c0e578cdd73596e3d1.exe
  "C:\Users\Admin\AppData\Local\Temp\9c26829eb4afa60257ac33d7486c7b5ff18d8b0c881c48c0e578cdd73596e3d1.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3092
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\LGPYW.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3476
  - - 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:3896
- - 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:1416
  - - 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:1244

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

LGPYW.txt

Path C:\Users\Admin\AppData\Local\Temp\LGPYW.txt
Size 145B
SHA256 08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff
MD5 4eb61ec7816c34ec8c125acadc57ec1b
SHA1 b0015cc865c0bb1a027be663027d3829401a31cc
SHA512 f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1
MD5 SHA1 SHA512

Submit Download

csrsll.exe

Path C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
Size 90KB
SHA256 61956825e05a0b0fac9466f73138b0d9134f8f433e128211893db03768b4e71c
MD5 684a243c3df9fdb0047591290e81a977
SHA1 0b2c0c298efc006ed69e6f999d40660e9b5d0f77
SHA512 668f0ea5d95bf8b120887e6fba19e96b464f046b063dc5c82b5996ed307c8d8f466658b118a176a5d6551958fba1687096aed82989d0a867fa496f310f5d57a2
SSDEEP 1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDF:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3n
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/1244-46-0x0000000000400000-0x0000000000414000-memory.dmp

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memory/1244-63-0x0000000000400000-0x0000000000414000-memory.dmp

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memory/1244-54-0x0000000000400000-0x0000000000414000-memory.dmp

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memory/1244-65-0x0000000000400000-0x0000000000414000-memory.dmp

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memory/1244-53-0x0000000000400000-0x0000000000414000-memory.dmp

Download

memory/1244-62-0x0000000000400000-0x0000000000414000-memory.dmp

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memory/1276-11-0x0000000000400000-0x0000000000453000-memory.dmp

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memory/1276-4-0x0000000002A60000-0x0000000002A62000-memory.dmp

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memory/1276-3-0x0000000002A50000-0x0000000002A52000-memory.dmp

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memory/1276-6-0x0000000002A80000-0x0000000002A82000-memory.dmp

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memory/1276-0-0x0000000000400000-0x0000000000453000-memory.dmp

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memory/1276-5-0x0000000000400000-0x0000000000453000-memory.dmp

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memory/1416-36-0x0000000000400000-0x0000000000453000-memory.dmp

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memory/1416-41-0x0000000000400000-0x0000000000453000-memory.dmp

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memory/1416-42-0x0000000000400000-0x0000000000453000-memory.dmp

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memory/1416-52-0x0000000000400000-0x0000000000453000-memory.dmp

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memory/1416-58-0x0000000000400000-0x0000000000453000-memory.dmp

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memory/3092-9-0x0000000000400000-0x000000000040B000-memory.dmp

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memory/3092-59-0x0000000000410000-0x00000000004D9000-memory.dmp

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memory/3092-61-0x0000000000400000-0x000000000040B000-memory.dmp

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memory/3092-40-0x0000000000400000-0x000000000040B000-memory.dmp

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memory/3092-13-0x0000000000400000-0x000000000040B000-memory.dmp

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memory/3092-7-0x0000000000400000-0x000000000040B000-memory.dmp

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memory/4056-64-0x0000000000400000-0x000000000040B000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads