modiloader | 3ffd9f0fed6e2dcb676ad8069bf37f89f69d5c6ef021f06ab3872afba58f1710

Analysis

max time kernel
149s
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
17-12-2024 05:44

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

3ffd9f0fed6e2dcb676ad8069bf37f89f69d5c6ef021f06ab3872afba58f1710.exe
Size

90KB
MD5

4b1ddc650a91be0547dfba352bb08b67
SHA1

f9d3b7a83ff2d8524144ea452d612e8d5dacac51
SHA256

3ffd9f0fed6e2dcb676ad8069bf37f89f69d5c6ef021f06ab3872afba58f1710
SHA512

d63e9a3bc0e4efb10da86cd02e1077b0f62b480ff2e39d9f04084d4dc6cba6f933b766d3ddbc8e87a60806d0ee087a7ca3f0700e29dbc2a5b43099adab5fd0ed
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDl:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3v

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/2680-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2680-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2680-57-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2680-63-0x0000000000400000-0x0000000000414000-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	3ffd9f0fed6e2dcb676ad8069bf37f89f69d5c6ef021f06ab3872afba58f1710.exe

Executes dropped EXE 3 IoCs

pid	Process
2524	csrsll.exe
536	csrsll.exe
2680	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 1388 set thread context of 4048	1388	3ffd9f0fed6e2dcb676ad8069bf37f89f69d5c6ef021f06ab3872afba58f1710.exe	83
PID 2524 set thread context of 536	2524	csrsll.exe	97
PID 2524 set thread context of 2680	2524	csrsll.exe	98

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1388-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1388-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4048-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4048-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1388-11-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4048-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0009000000023c61-29.dat	upx
behavioral2/memory/4048-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2524-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2524-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2680-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2680-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2680-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2680-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2680-57-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2524-58-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4048-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/536-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2680-63-0x0000000000400000-0x0000000000414000-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	3ffd9f0fed6e2dcb676ad8069bf37f89f69d5c6ef021f06ab3872afba58f1710.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3ffd9f0fed6e2dcb676ad8069bf37f89f69d5c6ef021f06ab3872afba58f1710.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	536	csrsll.exe
Token: SeDebugPrivilege	536	csrsll.exe
Token: SeDebugPrivilege	536	csrsll.exe
Token: SeDebugPrivilege	536	csrsll.exe
Token: SeDebugPrivilege	536	csrsll.exe
Token: SeDebugPrivilege	536	csrsll.exe
Token: SeDebugPrivilege	536	csrsll.exe
Token: SeDebugPrivilege	536	csrsll.exe
Token: SeDebugPrivilege	536	csrsll.exe
Token: SeDebugPrivilege	536	csrsll.exe
Token: SeDebugPrivilege	536	csrsll.exe
Token: SeDebugPrivilege	536	csrsll.exe
Token: SeDebugPrivilege	536	csrsll.exe
Token: SeDebugPrivilege	536	csrsll.exe
Token: SeDebugPrivilege	536	csrsll.exe
Token: SeDebugPrivilege	536	csrsll.exe
Token: SeDebugPrivilege	536	csrsll.exe
Token: SeDebugPrivilege	536	csrsll.exe
Token: SeDebugPrivilege	536	csrsll.exe
Token: SeDebugPrivilege	536	csrsll.exe
Token: SeDebugPrivilege	536	csrsll.exe
Token: SeDebugPrivilege	536	csrsll.exe
Token: SeDebugPrivilege	536	csrsll.exe
Token: SeDebugPrivilege	536	csrsll.exe
Token: SeDebugPrivilege	536	csrsll.exe
Token: SeDebugPrivilege	536	csrsll.exe
Token: SeDebugPrivilege	536	csrsll.exe
Token: SeDebugPrivilege	536	csrsll.exe
Token: SeDebugPrivilege	536	csrsll.exe
Token: SeDebugPrivilege	536	csrsll.exe
Token: SeDebugPrivilege	536	csrsll.exe
Token: SeDebugPrivilege	536	csrsll.exe
Token: SeDebugPrivilege	536	csrsll.exe
Token: SeDebugPrivilege	536	csrsll.exe
Token: SeDebugPrivilege	536	csrsll.exe
Token: SeDebugPrivilege	536	csrsll.exe
Token: SeDebugPrivilege	536	csrsll.exe
Token: SeDebugPrivilege	536	csrsll.exe
Token: SeDebugPrivilege	536	csrsll.exe
Token: SeDebugPrivilege	536	csrsll.exe
Token: SeDebugPrivilege	536	csrsll.exe
Token: SeDebugPrivilege	536	csrsll.exe
Token: SeDebugPrivilege	536	csrsll.exe
Token: SeDebugPrivilege	536	csrsll.exe
Token: SeDebugPrivilege	536	csrsll.exe
Token: SeDebugPrivilege	536	csrsll.exe
Token: SeDebugPrivilege	536	csrsll.exe
Token: SeDebugPrivilege	536	csrsll.exe
Token: SeDebugPrivilege	536	csrsll.exe
Token: SeDebugPrivilege	536	csrsll.exe
Token: SeDebugPrivilege	536	csrsll.exe
Token: SeDebugPrivilege	536	csrsll.exe
Token: SeDebugPrivilege	536	csrsll.exe
Token: SeDebugPrivilege	536	csrsll.exe
Token: SeDebugPrivilege	536	csrsll.exe
Token: SeDebugPrivilege	536	csrsll.exe
Token: SeDebugPrivilege	536	csrsll.exe
Token: SeDebugPrivilege	536	csrsll.exe
Token: SeDebugPrivilege	536	csrsll.exe
Token: SeDebugPrivilege	536	csrsll.exe
Token: SeDebugPrivilege	536	csrsll.exe
Token: SeDebugPrivilege	536	csrsll.exe
Token: SeDebugPrivilege	536	csrsll.exe
Token: SeDebugPrivilege	536	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1388	3ffd9f0fed6e2dcb676ad8069bf37f89f69d5c6ef021f06ab3872afba58f1710.exe
4048	3ffd9f0fed6e2dcb676ad8069bf37f89f69d5c6ef021f06ab3872afba58f1710.exe
2524	csrsll.exe
536	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 1388 wrote to memory of 4048	1388	3ffd9f0fed6e2dcb676ad8069bf37f89f69d5c6ef021f06ab3872afba58f1710.exe	83
PID 1388 wrote to memory of 4048	1388	3ffd9f0fed6e2dcb676ad8069bf37f89f69d5c6ef021f06ab3872afba58f1710.exe	83
PID 1388 wrote to memory of 4048	1388	3ffd9f0fed6e2dcb676ad8069bf37f89f69d5c6ef021f06ab3872afba58f1710.exe	83
PID 1388 wrote to memory of 4048	1388	3ffd9f0fed6e2dcb676ad8069bf37f89f69d5c6ef021f06ab3872afba58f1710.exe	83
PID 1388 wrote to memory of 4048	1388	3ffd9f0fed6e2dcb676ad8069bf37f89f69d5c6ef021f06ab3872afba58f1710.exe	83
PID 1388 wrote to memory of 4048	1388	3ffd9f0fed6e2dcb676ad8069bf37f89f69d5c6ef021f06ab3872afba58f1710.exe	83
PID 1388 wrote to memory of 4048	1388	3ffd9f0fed6e2dcb676ad8069bf37f89f69d5c6ef021f06ab3872afba58f1710.exe	83
PID 1388 wrote to memory of 4048	1388	3ffd9f0fed6e2dcb676ad8069bf37f89f69d5c6ef021f06ab3872afba58f1710.exe	83
PID 4048 wrote to memory of 912	4048	3ffd9f0fed6e2dcb676ad8069bf37f89f69d5c6ef021f06ab3872afba58f1710.exe	84
PID 4048 wrote to memory of 912	4048	3ffd9f0fed6e2dcb676ad8069bf37f89f69d5c6ef021f06ab3872afba58f1710.exe	84
PID 4048 wrote to memory of 912	4048	3ffd9f0fed6e2dcb676ad8069bf37f89f69d5c6ef021f06ab3872afba58f1710.exe	84
PID 912 wrote to memory of 1480	912	cmd.exe	88
PID 912 wrote to memory of 1480	912	cmd.exe	88
PID 912 wrote to memory of 1480	912	cmd.exe	88
PID 4048 wrote to memory of 2524	4048	3ffd9f0fed6e2dcb676ad8069bf37f89f69d5c6ef021f06ab3872afba58f1710.exe	89
PID 4048 wrote to memory of 2524	4048	3ffd9f0fed6e2dcb676ad8069bf37f89f69d5c6ef021f06ab3872afba58f1710.exe	89
PID 4048 wrote to memory of 2524	4048	3ffd9f0fed6e2dcb676ad8069bf37f89f69d5c6ef021f06ab3872afba58f1710.exe	89
PID 2524 wrote to memory of 536	2524	csrsll.exe	97
PID 2524 wrote to memory of 536	2524	csrsll.exe	97
PID 2524 wrote to memory of 536	2524	csrsll.exe	97
PID 2524 wrote to memory of 536	2524	csrsll.exe	97
PID 2524 wrote to memory of 536	2524	csrsll.exe	97
PID 2524 wrote to memory of 536	2524	csrsll.exe	97
PID 2524 wrote to memory of 536	2524	csrsll.exe	97
PID 2524 wrote to memory of 536	2524	csrsll.exe	97
PID 2524 wrote to memory of 2680	2524	csrsll.exe	98
PID 2524 wrote to memory of 2680	2524	csrsll.exe	98
PID 2524 wrote to memory of 2680	2524	csrsll.exe	98
PID 2524 wrote to memory of 2680	2524	csrsll.exe	98
PID 2524 wrote to memory of 2680	2524	csrsll.exe	98
PID 2524 wrote to memory of 2680	2524	csrsll.exe	98
PID 2524 wrote to memory of 2680	2524	csrsll.exe	98
PID 2524 wrote to memory of 2680	2524	csrsll.exe	98

C:\Users\Admin\AppData\Local\Temp\3ffd9f0fed6e2dcb676ad8069bf37f89f69d5c6ef021f06ab3872afba58f1710.exe
"C:\Users\Admin\AppData\Local\Temp\3ffd9f0fed6e2dcb676ad8069bf37f89f69d5c6ef021f06ab3872afba58f1710.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1388
- C:\Users\Admin\AppData\Local\Temp\3ffd9f0fed6e2dcb676ad8069bf37f89f69d5c6ef021f06ab3872afba58f1710.exe
  "C:\Users\Admin\AppData\Local\Temp\3ffd9f0fed6e2dcb676ad8069bf37f89f69d5c6ef021f06ab3872afba58f1710.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4048
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\YMYKI.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:912
  - - 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:1480
- - 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:2524
  - - 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:536
  - - 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:2680

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\YMYKI.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
ac67779bfdb6eb55710ab37ec38903a9

SHA1
4b34b7261287a81cc9c081fac05b5048ec21fc8f

SHA256
4e0a4ddfba5ba0761be8e3d1346d2a12c95d48dc5bb6562a5b5e24fb8410d0fc

SHA512
4ce588dd2f7118db92d860ae2c6ccf69beeaaff6939e19ca9aa9447c6b00c38af083b256694e4b1970eac523f78f559bb494ff357f20e7b9d3a66cb8a1d41444

Download Submit
memory/536-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1388-3-0x00000000021B0000-0x00000000021B2000-memory.dmp

Filesize
8KB

Download
memory/1388-4-0x00000000021C0000-0x00000000021C2000-memory.dmp

Filesize
8KB

Download
memory/1388-6-0x00000000021E0000-0x00000000021E2000-memory.dmp

Filesize
8KB

Download
memory/1388-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1388-11-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1388-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2524-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2524-58-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2524-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2680-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2680-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2680-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2680-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2680-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2680-63-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4048-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4048-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4048-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4048-59-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/4048-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4048-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads