modiloader | 05c07ec0af6d53c3fc2b54f0921b95dfc97c336f030dec289584040da7a8c55a

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
05-12-2024 11:27

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General

Target

05c07ec0af6d53c3fc2b54f0921b95dfc97c336f030dec289584040da7a8c55a.exe
Size

90KB
MD5

36eba0efde63a4ee67bfc4d8530a0db6
SHA1

54854c7504cd9da75e76c33dbfa0b99577e7b4aa
SHA256

05c07ec0af6d53c3fc2b54f0921b95dfc97c336f030dec289584040da7a8c55a
SHA512

d15c2d306a1942679ead2aebd9a6db01ec2b00f1d17596ca5d8a251c886283f7b583fe95d5934b0b1d3bfed8b5b9a541e490063ad259295ad526c7801f61ce7e
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oD9:0wjZQJvzZsgsW6/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/4444-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4444-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4444-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4444-63-0x0000000000400000-0x0000000000414000-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	05c07ec0af6d53c3fc2b54f0921b95dfc97c336f030dec289584040da7a8c55a.exe

Executes dropped EXE 3 IoCs

pid	Process
4656	csrsll.exe
4804	csrsll.exe
4444	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 5004 set thread context of 4600	5004	05c07ec0af6d53c3fc2b54f0921b95dfc97c336f030dec289584040da7a8c55a.exe	83
PID 4656 set thread context of 4804	4656	csrsll.exe	97
PID 4656 set thread context of 4444	4656	csrsll.exe	98

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/5004-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/5004-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4600-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4600-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/5004-13-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4600-12-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000b000000023b88-29.dat	upx
behavioral2/memory/4600-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4656-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4656-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4444-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4444-45-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4444-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4444-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4656-58-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4444-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4600-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4804-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4444-63-0x0000000000400000-0x0000000000414000-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	05c07ec0af6d53c3fc2b54f0921b95dfc97c336f030dec289584040da7a8c55a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	05c07ec0af6d53c3fc2b54f0921b95dfc97c336f030dec289584040da7a8c55a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe
Token: SeDebugPrivilege	4804	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
5004	05c07ec0af6d53c3fc2b54f0921b95dfc97c336f030dec289584040da7a8c55a.exe
4600	05c07ec0af6d53c3fc2b54f0921b95dfc97c336f030dec289584040da7a8c55a.exe
4656	csrsll.exe
4804	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 5004 wrote to memory of 4600	5004	05c07ec0af6d53c3fc2b54f0921b95dfc97c336f030dec289584040da7a8c55a.exe	83
PID 5004 wrote to memory of 4600	5004	05c07ec0af6d53c3fc2b54f0921b95dfc97c336f030dec289584040da7a8c55a.exe	83
PID 5004 wrote to memory of 4600	5004	05c07ec0af6d53c3fc2b54f0921b95dfc97c336f030dec289584040da7a8c55a.exe	83
PID 5004 wrote to memory of 4600	5004	05c07ec0af6d53c3fc2b54f0921b95dfc97c336f030dec289584040da7a8c55a.exe	83
PID 5004 wrote to memory of 4600	5004	05c07ec0af6d53c3fc2b54f0921b95dfc97c336f030dec289584040da7a8c55a.exe	83
PID 5004 wrote to memory of 4600	5004	05c07ec0af6d53c3fc2b54f0921b95dfc97c336f030dec289584040da7a8c55a.exe	83
PID 5004 wrote to memory of 4600	5004	05c07ec0af6d53c3fc2b54f0921b95dfc97c336f030dec289584040da7a8c55a.exe	83
PID 5004 wrote to memory of 4600	5004	05c07ec0af6d53c3fc2b54f0921b95dfc97c336f030dec289584040da7a8c55a.exe	83
PID 4600 wrote to memory of 3600	4600	05c07ec0af6d53c3fc2b54f0921b95dfc97c336f030dec289584040da7a8c55a.exe	84
PID 4600 wrote to memory of 3600	4600	05c07ec0af6d53c3fc2b54f0921b95dfc97c336f030dec289584040da7a8c55a.exe	84
PID 4600 wrote to memory of 3600	4600	05c07ec0af6d53c3fc2b54f0921b95dfc97c336f030dec289584040da7a8c55a.exe	84
PID 3600 wrote to memory of 2632	3600	cmd.exe	88
PID 3600 wrote to memory of 2632	3600	cmd.exe	88
PID 3600 wrote to memory of 2632	3600	cmd.exe	88
PID 4600 wrote to memory of 4656	4600	05c07ec0af6d53c3fc2b54f0921b95dfc97c336f030dec289584040da7a8c55a.exe	89
PID 4600 wrote to memory of 4656	4600	05c07ec0af6d53c3fc2b54f0921b95dfc97c336f030dec289584040da7a8c55a.exe	89
PID 4600 wrote to memory of 4656	4600	05c07ec0af6d53c3fc2b54f0921b95dfc97c336f030dec289584040da7a8c55a.exe	89
PID 4656 wrote to memory of 4804	4656	csrsll.exe	97
PID 4656 wrote to memory of 4804	4656	csrsll.exe	97
PID 4656 wrote to memory of 4804	4656	csrsll.exe	97
PID 4656 wrote to memory of 4804	4656	csrsll.exe	97
PID 4656 wrote to memory of 4804	4656	csrsll.exe	97
PID 4656 wrote to memory of 4804	4656	csrsll.exe	97
PID 4656 wrote to memory of 4804	4656	csrsll.exe	97
PID 4656 wrote to memory of 4804	4656	csrsll.exe	97
PID 4656 wrote to memory of 4444	4656	csrsll.exe	98
PID 4656 wrote to memory of 4444	4656	csrsll.exe	98
PID 4656 wrote to memory of 4444	4656	csrsll.exe	98
PID 4656 wrote to memory of 4444	4656	csrsll.exe	98
PID 4656 wrote to memory of 4444	4656	csrsll.exe	98
PID 4656 wrote to memory of 4444	4656	csrsll.exe	98
PID 4656 wrote to memory of 4444	4656	csrsll.exe	98
PID 4656 wrote to memory of 4444	4656	csrsll.exe	98

C:\Users\Admin\AppData\Local\Temp\05c07ec0af6d53c3fc2b54f0921b95dfc97c336f030dec289584040da7a8c55a.exe
"C:\Users\Admin\AppData\Local\Temp\05c07ec0af6d53c3fc2b54f0921b95dfc97c336f030dec289584040da7a8c55a.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5004
- C:\Users\Admin\AppData\Local\Temp\05c07ec0af6d53c3fc2b54f0921b95dfc97c336f030dec289584040da7a8c55a.exe
  "C:\Users\Admin\AppData\Local\Temp\05c07ec0af6d53c3fc2b54f0921b95dfc97c336f030dec289584040da7a8c55a.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4600
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\XLYJI.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3600
  - - 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:2632
- - 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:4656
  - - 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:4804
  - - 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:4444

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\XLYJI.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
f56719515de1884b5a5fbc0273ddf262

SHA1
7e41659724c80109778cd1cb1a534d553d3a58a5

SHA256
7b78f2178f8bbd251736f4b337bf252b3caba26ec73a4ad21640d3e4fbf1860d

SHA512
b14277a69019791b87dd445b0e75c57266690cf93089f3183f57f48bcaa3684efbb137f95c0703423c801849f4f8b6d4dd6739f087e0da76bf3e051f20d33506

Download Submit
memory/4444-45-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4444-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4444-63-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4444-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4444-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4444-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4600-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4600-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4600-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4600-12-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4600-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4656-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4656-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4656-58-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4804-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/5004-6-0x0000000002330000-0x0000000002332000-memory.dmp

Filesize
8KB

Download
memory/5004-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/5004-3-0x0000000002300000-0x0000000002302000-memory.dmp

Filesize
8KB

Download
memory/5004-4-0x0000000002310000-0x0000000002312000-memory.dmp

Filesize
8KB

Download
memory/5004-13-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/5004-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads