modiloader | fad6fb9bb472290e17dbfc524889b6dd2f8df3d4626e00e0d4c02e06e0c83068

Analysis

max time kernel
119s
max time network
120s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
01-01-2025 16:53

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General

Target

fad6fb9bb472290e17dbfc524889b6dd2f8df3d4626e00e0d4c02e06e0c83068.exe
Size

90KB
MD5

7ae461f466f338115e8af02f9dcc11f3
SHA1

eb803d82b2669d62cc27d7e7c4391462a8ca9338
SHA256

fad6fb9bb472290e17dbfc524889b6dd2f8df3d4626e00e0d4c02e06e0c83068
SHA512

71158a16ccd9f704487c91d5e7974640da754a0d180f7354e675758c24b97837ed0b542523b7cc7ed4de543f9c68e40e1189c84d7f90c1bf11e7a6c954be910f
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDm:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3g

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/3128-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3128-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3128-57-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3128-62-0x0000000000400000-0x0000000000414000-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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	fad6fb9bb472290e17dbfc524889b6dd2f8df3d4626e00e0d4c02e06e0c83068.exe

Executes dropped EXE 3 IoCs

pid	Process
1540	csrsll.exe
4272	csrsll.exe
3128	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-1-5-21-4050598569-1597076380-177084960-1000\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 3868 set thread context of 2880	3868	fad6fb9bb472290e17dbfc524889b6dd2f8df3d4626e00e0d4c02e06e0c83068.exe	82
PID 1540 set thread context of 4272	1540	csrsll.exe	93
PID 1540 set thread context of 3128	1540	csrsll.exe	94

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3868-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3868-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2880-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3868-9-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2880-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2880-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000b000000023b69-29.dat	upx
behavioral2/memory/2880-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1540-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1540-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3128-46-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3128-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3128-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3128-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3128-57-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2880-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1540-53-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4272-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3128-62-0x0000000000400000-0x0000000000414000-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	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fad6fb9bb472290e17dbfc524889b6dd2f8df3d4626e00e0d4c02e06e0c83068.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fad6fb9bb472290e17dbfc524889b6dd2f8df3d4626e00e0d4c02e06e0c83068.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

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4272	csrsll.exe
Token: SeDebugPrivilege	4272	csrsll.exe
Token: SeDebugPrivilege	4272	csrsll.exe
Token: SeDebugPrivilege	4272	csrsll.exe
Token: SeDebugPrivilege	4272	csrsll.exe
Token: SeDebugPrivilege	4272	csrsll.exe
Token: SeDebugPrivilege	4272	csrsll.exe
Token: SeDebugPrivilege	4272	csrsll.exe
Token: SeDebugPrivilege	4272	csrsll.exe
Token: SeDebugPrivilege	4272	csrsll.exe
Token: SeDebugPrivilege	4272	csrsll.exe
Token: SeDebugPrivilege	4272	csrsll.exe
Token: SeDebugPrivilege	4272	csrsll.exe
Token: SeDebugPrivilege	4272	csrsll.exe
Token: SeDebugPrivilege	4272	csrsll.exe
Token: SeDebugPrivilege	4272	csrsll.exe
Token: SeDebugPrivilege	4272	csrsll.exe
Token: SeDebugPrivilege	4272	csrsll.exe
Token: SeDebugPrivilege	4272	csrsll.exe
Token: SeDebugPrivilege	4272	csrsll.exe
Token: SeDebugPrivilege	4272	csrsll.exe
Token: SeDebugPrivilege	4272	csrsll.exe
Token: SeDebugPrivilege	4272	csrsll.exe
Token: SeDebugPrivilege	4272	csrsll.exe
Token: SeDebugPrivilege	4272	csrsll.exe
Token: SeDebugPrivilege	4272	csrsll.exe
Token: SeDebugPrivilege	4272	csrsll.exe
Token: SeDebugPrivilege	4272	csrsll.exe
Token: SeDebugPrivilege	4272	csrsll.exe
Token: SeDebugPrivilege	4272	csrsll.exe
Token: SeDebugPrivilege	4272	csrsll.exe
Token: SeDebugPrivilege	4272	csrsll.exe
Token: SeDebugPrivilege	4272	csrsll.exe
Token: SeDebugPrivilege	4272	csrsll.exe
Token: SeDebugPrivilege	4272	csrsll.exe
Token: SeDebugPrivilege	4272	csrsll.exe
Token: SeDebugPrivilege	4272	csrsll.exe
Token: SeDebugPrivilege	4272	csrsll.exe
Token: SeDebugPrivilege	4272	csrsll.exe
Token: SeDebugPrivilege	4272	csrsll.exe
Token: SeDebugPrivilege	4272	csrsll.exe
Token: SeDebugPrivilege	4272	csrsll.exe
Token: SeDebugPrivilege	4272	csrsll.exe
Token: SeDebugPrivilege	4272	csrsll.exe
Token: SeDebugPrivilege	4272	csrsll.exe
Token: SeDebugPrivilege	4272	csrsll.exe
Token: SeDebugPrivilege	4272	csrsll.exe
Token: SeDebugPrivilege	4272	csrsll.exe
Token: SeDebugPrivilege	4272	csrsll.exe
Token: SeDebugPrivilege	4272	csrsll.exe
Token: SeDebugPrivilege	4272	csrsll.exe
Token: SeDebugPrivilege	4272	csrsll.exe
Token: SeDebugPrivilege	4272	csrsll.exe
Token: SeDebugPrivilege	4272	csrsll.exe
Token: SeDebugPrivilege	4272	csrsll.exe
Token: SeDebugPrivilege	4272	csrsll.exe
Token: SeDebugPrivilege	4272	csrsll.exe
Token: SeDebugPrivilege	4272	csrsll.exe
Token: SeDebugPrivilege	4272	csrsll.exe
Token: SeDebugPrivilege	4272	csrsll.exe
Token: SeDebugPrivilege	4272	csrsll.exe
Token: SeDebugPrivilege	4272	csrsll.exe
Token: SeDebugPrivilege	4272	csrsll.exe
Token: SeDebugPrivilege	4272	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
3868	fad6fb9bb472290e17dbfc524889b6dd2f8df3d4626e00e0d4c02e06e0c83068.exe
2880	fad6fb9bb472290e17dbfc524889b6dd2f8df3d4626e00e0d4c02e06e0c83068.exe
1540	csrsll.exe
4272	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 3868 wrote to memory of 2880	3868	fad6fb9bb472290e17dbfc524889b6dd2f8df3d4626e00e0d4c02e06e0c83068.exe	82
PID 3868 wrote to memory of 2880	3868	fad6fb9bb472290e17dbfc524889b6dd2f8df3d4626e00e0d4c02e06e0c83068.exe	82
PID 3868 wrote to memory of 2880	3868	fad6fb9bb472290e17dbfc524889b6dd2f8df3d4626e00e0d4c02e06e0c83068.exe	82
PID 3868 wrote to memory of 2880	3868	fad6fb9bb472290e17dbfc524889b6dd2f8df3d4626e00e0d4c02e06e0c83068.exe	82
PID 3868 wrote to memory of 2880	3868	fad6fb9bb472290e17dbfc524889b6dd2f8df3d4626e00e0d4c02e06e0c83068.exe	82
PID 3868 wrote to memory of 2880	3868	fad6fb9bb472290e17dbfc524889b6dd2f8df3d4626e00e0d4c02e06e0c83068.exe	82
PID 3868 wrote to memory of 2880	3868	fad6fb9bb472290e17dbfc524889b6dd2f8df3d4626e00e0d4c02e06e0c83068.exe	82
PID 3868 wrote to memory of 2880	3868	fad6fb9bb472290e17dbfc524889b6dd2f8df3d4626e00e0d4c02e06e0c83068.exe	82
PID 2880 wrote to memory of 4532	2880	fad6fb9bb472290e17dbfc524889b6dd2f8df3d4626e00e0d4c02e06e0c83068.exe	83
PID 2880 wrote to memory of 4532	2880	fad6fb9bb472290e17dbfc524889b6dd2f8df3d4626e00e0d4c02e06e0c83068.exe	83
PID 2880 wrote to memory of 4532	2880	fad6fb9bb472290e17dbfc524889b6dd2f8df3d4626e00e0d4c02e06e0c83068.exe	83
PID 4532 wrote to memory of 2424	4532	cmd.exe	86
PID 4532 wrote to memory of 2424	4532	cmd.exe	86
PID 4532 wrote to memory of 2424	4532	cmd.exe	86
PID 2880 wrote to memory of 1540	2880	fad6fb9bb472290e17dbfc524889b6dd2f8df3d4626e00e0d4c02e06e0c83068.exe	87
PID 2880 wrote to memory of 1540	2880	fad6fb9bb472290e17dbfc524889b6dd2f8df3d4626e00e0d4c02e06e0c83068.exe	87
PID 2880 wrote to memory of 1540	2880	fad6fb9bb472290e17dbfc524889b6dd2f8df3d4626e00e0d4c02e06e0c83068.exe	87
PID 1540 wrote to memory of 4272	1540	csrsll.exe	93
PID 1540 wrote to memory of 4272	1540	csrsll.exe	93
PID 1540 wrote to memory of 4272	1540	csrsll.exe	93
PID 1540 wrote to memory of 4272	1540	csrsll.exe	93
PID 1540 wrote to memory of 4272	1540	csrsll.exe	93
PID 1540 wrote to memory of 4272	1540	csrsll.exe	93
PID 1540 wrote to memory of 4272	1540	csrsll.exe	93
PID 1540 wrote to memory of 4272	1540	csrsll.exe	93
PID 1540 wrote to memory of 3128	1540	csrsll.exe	94
PID 1540 wrote to memory of 3128	1540	csrsll.exe	94
PID 1540 wrote to memory of 3128	1540	csrsll.exe	94
PID 1540 wrote to memory of 3128	1540	csrsll.exe	94
PID 1540 wrote to memory of 3128	1540	csrsll.exe	94
PID 1540 wrote to memory of 3128	1540	csrsll.exe	94
PID 1540 wrote to memory of 3128	1540	csrsll.exe	94
PID 1540 wrote to memory of 3128	1540	csrsll.exe	94

C:\Users\Admin\AppData\Local\Temp\fad6fb9bb472290e17dbfc524889b6dd2f8df3d4626e00e0d4c02e06e0c83068.exe
"C:\Users\Admin\AppData\Local\Temp\fad6fb9bb472290e17dbfc524889b6dd2f8df3d4626e00e0d4c02e06e0c83068.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3868
- C:\Users\Admin\AppData\Local\Temp\fad6fb9bb472290e17dbfc524889b6dd2f8df3d4626e00e0d4c02e06e0c83068.exe
  "C:\Users\Admin\AppData\Local\Temp\fad6fb9bb472290e17dbfc524889b6dd2f8df3d4626e00e0d4c02e06e0c83068.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2880
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\YLBPL.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4532
  - - 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:2424
- - 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:1540
  - - 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:4272
  - - 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:3128

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\YLBPL.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
543c9057bafb023cf0147c02388890be

SHA1
c82b6830a3dfce800cc9bc92fd66828fc5e67986

SHA256
feb2fd5176d360148a7c909566ccd13434cdfb71765b7b5f7bac6ef2f8a8cf3f

SHA512
ccfc2e62bbf72143661685988c6c9c887229fb4a5755828bc05e2fca30deca91b70551cb09efe0e74ec854b2f060e177853a4bcb468cdec59fd1ab5eac5a257b

Download Submit
memory/1540-53-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1540-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1540-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2880-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2880-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2880-58-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/2880-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2880-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2880-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3128-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3128-46-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3128-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3128-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3128-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3128-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3868-9-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3868-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3868-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3868-6-0x0000000002C80000-0x0000000002C82000-memory.dmp

Filesize
8KB

Download
memory/3868-4-0x0000000002B50000-0x0000000002B52000-memory.dmp

Filesize
8KB

Download
memory/3868-3-0x0000000002B40000-0x0000000002B42000-memory.dmp

Filesize
8KB

Download
memory/4272-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads