modiloader | a20914b4c31ee17db68a1da2a131917af449483f59498cb630572b3e6ff7bad6

Analysis

max time kernel
58s
max time network
58s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
02-01-2025 20:00

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General

Target

a20914b4c31ee17db68a1da2a131917af449483f59498cb630572b3e6ff7bad6.exe
Size

90KB
MD5

ed351b51146f96f8685751237a2ba886
SHA1

db02b63c55e9abf5f1efa54860fc5560e9647e77
SHA256

a20914b4c31ee17db68a1da2a131917af449483f59498cb630572b3e6ff7bad6
SHA512

eb9dd6d0cdd038b9376b37eede22f8c179b84a680eb6bcc7b74f7fdeccd60ad8528ac22ba70bb261b97ddf6836be3894bfe5c6b1b81549b7c3b98d9bae067c60
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/2744-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2744-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2744-57-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2744-62-0x0000000000400000-0x0000000000414000-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-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	a20914b4c31ee17db68a1da2a131917af449483f59498cb630572b3e6ff7bad6.exe

Executes dropped EXE 3 IoCs

pid	Process
3872	csrsll.exe
3516	csrsll.exe
2744	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-1-5-21-940901362-3608833189-1915618603-1000\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 4916 set thread context of 4332	4916	a20914b4c31ee17db68a1da2a131917af449483f59498cb630572b3e6ff7bad6.exe	83
PID 3872 set thread context of 3516	3872	csrsll.exe	95
PID 3872 set thread context of 2744	3872	csrsll.exe	96

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4916-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4916-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4332-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4332-10-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4332-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4916-14-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x000c000000023b63-28.dat	upx
behavioral2/memory/3872-35-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4332-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3872-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3872-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2744-45-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2744-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2744-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2744-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2744-57-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3872-55-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4332-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3516-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2744-62-0x0000000000400000-0x0000000000414000-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	a20914b4c31ee17db68a1da2a131917af449483f59498cb630572b3e6ff7bad6.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a20914b4c31ee17db68a1da2a131917af449483f59498cb630572b3e6ff7bad6.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 28 IoCs

description	pid	Process
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4916	a20914b4c31ee17db68a1da2a131917af449483f59498cb630572b3e6ff7bad6.exe
4332	a20914b4c31ee17db68a1da2a131917af449483f59498cb630572b3e6ff7bad6.exe
3872	csrsll.exe
3516	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4916 wrote to memory of 4332	4916	a20914b4c31ee17db68a1da2a131917af449483f59498cb630572b3e6ff7bad6.exe	83
PID 4916 wrote to memory of 4332	4916	a20914b4c31ee17db68a1da2a131917af449483f59498cb630572b3e6ff7bad6.exe	83
PID 4916 wrote to memory of 4332	4916	a20914b4c31ee17db68a1da2a131917af449483f59498cb630572b3e6ff7bad6.exe	83
PID 4916 wrote to memory of 4332	4916	a20914b4c31ee17db68a1da2a131917af449483f59498cb630572b3e6ff7bad6.exe	83
PID 4916 wrote to memory of 4332	4916	a20914b4c31ee17db68a1da2a131917af449483f59498cb630572b3e6ff7bad6.exe	83
PID 4916 wrote to memory of 4332	4916	a20914b4c31ee17db68a1da2a131917af449483f59498cb630572b3e6ff7bad6.exe	83
PID 4916 wrote to memory of 4332	4916	a20914b4c31ee17db68a1da2a131917af449483f59498cb630572b3e6ff7bad6.exe	83
PID 4916 wrote to memory of 4332	4916	a20914b4c31ee17db68a1da2a131917af449483f59498cb630572b3e6ff7bad6.exe	83
PID 4332 wrote to memory of 1888	4332	a20914b4c31ee17db68a1da2a131917af449483f59498cb630572b3e6ff7bad6.exe	84
PID 4332 wrote to memory of 1888	4332	a20914b4c31ee17db68a1da2a131917af449483f59498cb630572b3e6ff7bad6.exe	84
PID 4332 wrote to memory of 1888	4332	a20914b4c31ee17db68a1da2a131917af449483f59498cb630572b3e6ff7bad6.exe	84
PID 1888 wrote to memory of 2156	1888	cmd.exe	88
PID 1888 wrote to memory of 2156	1888	cmd.exe	88
PID 1888 wrote to memory of 2156	1888	cmd.exe	88
PID 4332 wrote to memory of 3872	4332	a20914b4c31ee17db68a1da2a131917af449483f59498cb630572b3e6ff7bad6.exe	89
PID 4332 wrote to memory of 3872	4332	a20914b4c31ee17db68a1da2a131917af449483f59498cb630572b3e6ff7bad6.exe	89
PID 4332 wrote to memory of 3872	4332	a20914b4c31ee17db68a1da2a131917af449483f59498cb630572b3e6ff7bad6.exe	89
PID 3872 wrote to memory of 3516	3872	csrsll.exe	95
PID 3872 wrote to memory of 3516	3872	csrsll.exe	95
PID 3872 wrote to memory of 3516	3872	csrsll.exe	95
PID 3872 wrote to memory of 3516	3872	csrsll.exe	95
PID 3872 wrote to memory of 3516	3872	csrsll.exe	95
PID 3872 wrote to memory of 3516	3872	csrsll.exe	95
PID 3872 wrote to memory of 3516	3872	csrsll.exe	95
PID 3872 wrote to memory of 3516	3872	csrsll.exe	95
PID 3872 wrote to memory of 2744	3872	csrsll.exe	96
PID 3872 wrote to memory of 2744	3872	csrsll.exe	96
PID 3872 wrote to memory of 2744	3872	csrsll.exe	96
PID 3872 wrote to memory of 2744	3872	csrsll.exe	96
PID 3872 wrote to memory of 2744	3872	csrsll.exe	96
PID 3872 wrote to memory of 2744	3872	csrsll.exe	96
PID 3872 wrote to memory of 2744	3872	csrsll.exe	96
PID 3872 wrote to memory of 2744	3872	csrsll.exe	96

C:\Users\Admin\AppData\Local\Temp\a20914b4c31ee17db68a1da2a131917af449483f59498cb630572b3e6ff7bad6.exe
"C:\Users\Admin\AppData\Local\Temp\a20914b4c31ee17db68a1da2a131917af449483f59498cb630572b3e6ff7bad6.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4916
- C:\Users\Admin\AppData\Local\Temp\a20914b4c31ee17db68a1da2a131917af449483f59498cb630572b3e6ff7bad6.exe
  "C:\Users\Admin\AppData\Local\Temp\a20914b4c31ee17db68a1da2a131917af449483f59498cb630572b3e6ff7bad6.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4332
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\MWPOQ.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1888
  - - 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:2156
- - 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:3872
  - - 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:3516
  - - 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:2744

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\MWPOQ.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
e1d203f27affdf999cc4786d8fabbe39

SHA1
2befacd2d1f1e897ce810e49ef88b84209b85f6e

SHA256
9249af66948591016b5ede8d011d15fb332ec08faf954878a1731684703d4ac4

SHA512
5f66d0bad92bab1484ca5b4675b4b02f48f2f01a986f917f52fbba7343dc13e85297d8622dd6c299764ad42e5cebf2dc03fee990de3f57d1a474515c93adeb19

Download Submit
memory/2744-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2744-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2744-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2744-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2744-45-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2744-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3516-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3872-55-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3872-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3872-35-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3872-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4332-10-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4332-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4332-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4332-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4332-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4916-14-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4916-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4916-6-0x0000000002CA0000-0x0000000002CA2000-memory.dmp

Filesize
8KB

Download
memory/4916-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4916-4-0x0000000002C80000-0x0000000002C82000-memory.dmp

Filesize
8KB

Download
memory/4916-3-0x0000000002420000-0x0000000002422000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads