modiloader | c54d2e3dc894050e85fe70b015c60b2d89a9e481fcd6e08dfefd078979677aff

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 22:20

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General

Target

c54d2e3dc894050e85fe70b015c60b2d89a9e481fcd6e08dfefd078979677aff.exe
Size

90KB
MD5

8ce8b21f83b5e830149b110e64ad52d8
SHA1

195e9011de3c0e91da5de18ea07ca4489d3b8971
SHA256

c54d2e3dc894050e85fe70b015c60b2d89a9e481fcd6e08dfefd078979677aff
SHA512

4f8a4b34e586e403c49834fc24602ada170e3c030dff3fa9fc76bd523a8de85cb51f79872dfc1ddd66fe429128551071603f709c335b4e77210060d7864d0074
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDJ:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3n

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/752-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/752-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/752-51-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/752-61-0x0000000000400000-0x0000000000414000-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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	c54d2e3dc894050e85fe70b015c60b2d89a9e481fcd6e08dfefd078979677aff.exe

Executes dropped EXE 3 IoCs

pid	Process
4048	csrsll.exe
3504	csrsll.exe
752	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-1-5-21-2878641211-696417878-3864914810-1000\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 4604 set thread context of 3556	4604	c54d2e3dc894050e85fe70b015c60b2d89a9e481fcd6e08dfefd078979677aff.exe	86
PID 4048 set thread context of 3504	4048	csrsll.exe	100
PID 4048 set thread context of 752	4048	csrsll.exe	101

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4604-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4604-4-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3556-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4604-12-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3556-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3556-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000d000000023b63-28.dat	upx
behavioral2/memory/3556-38-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4048-39-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4048-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/752-44-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/752-49-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/752-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/752-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/752-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3556-59-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4048-56-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3504-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/752-61-0x0000000000400000-0x0000000000414000-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	c54d2e3dc894050e85fe70b015c60b2d89a9e481fcd6e08dfefd078979677aff.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c54d2e3dc894050e85fe70b015c60b2d89a9e481fcd6e08dfefd078979677aff.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4604	c54d2e3dc894050e85fe70b015c60b2d89a9e481fcd6e08dfefd078979677aff.exe
3556	c54d2e3dc894050e85fe70b015c60b2d89a9e481fcd6e08dfefd078979677aff.exe
4048	csrsll.exe
3504	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4604 wrote to memory of 3556	4604	c54d2e3dc894050e85fe70b015c60b2d89a9e481fcd6e08dfefd078979677aff.exe	86
PID 4604 wrote to memory of 3556	4604	c54d2e3dc894050e85fe70b015c60b2d89a9e481fcd6e08dfefd078979677aff.exe	86
PID 4604 wrote to memory of 3556	4604	c54d2e3dc894050e85fe70b015c60b2d89a9e481fcd6e08dfefd078979677aff.exe	86
PID 4604 wrote to memory of 3556	4604	c54d2e3dc894050e85fe70b015c60b2d89a9e481fcd6e08dfefd078979677aff.exe	86
PID 4604 wrote to memory of 3556	4604	c54d2e3dc894050e85fe70b015c60b2d89a9e481fcd6e08dfefd078979677aff.exe	86
PID 4604 wrote to memory of 3556	4604	c54d2e3dc894050e85fe70b015c60b2d89a9e481fcd6e08dfefd078979677aff.exe	86
PID 4604 wrote to memory of 3556	4604	c54d2e3dc894050e85fe70b015c60b2d89a9e481fcd6e08dfefd078979677aff.exe	86
PID 4604 wrote to memory of 3556	4604	c54d2e3dc894050e85fe70b015c60b2d89a9e481fcd6e08dfefd078979677aff.exe	86
PID 3556 wrote to memory of 4652	3556	c54d2e3dc894050e85fe70b015c60b2d89a9e481fcd6e08dfefd078979677aff.exe	87
PID 3556 wrote to memory of 4652	3556	c54d2e3dc894050e85fe70b015c60b2d89a9e481fcd6e08dfefd078979677aff.exe	87
PID 3556 wrote to memory of 4652	3556	c54d2e3dc894050e85fe70b015c60b2d89a9e481fcd6e08dfefd078979677aff.exe	87
PID 4652 wrote to memory of 4948	4652	cmd.exe	91
PID 4652 wrote to memory of 4948	4652	cmd.exe	91
PID 4652 wrote to memory of 4948	4652	cmd.exe	91
PID 3556 wrote to memory of 4048	3556	c54d2e3dc894050e85fe70b015c60b2d89a9e481fcd6e08dfefd078979677aff.exe	92
PID 3556 wrote to memory of 4048	3556	c54d2e3dc894050e85fe70b015c60b2d89a9e481fcd6e08dfefd078979677aff.exe	92
PID 3556 wrote to memory of 4048	3556	c54d2e3dc894050e85fe70b015c60b2d89a9e481fcd6e08dfefd078979677aff.exe	92
PID 4048 wrote to memory of 3504	4048	csrsll.exe	100
PID 4048 wrote to memory of 3504	4048	csrsll.exe	100
PID 4048 wrote to memory of 3504	4048	csrsll.exe	100
PID 4048 wrote to memory of 3504	4048	csrsll.exe	100
PID 4048 wrote to memory of 3504	4048	csrsll.exe	100
PID 4048 wrote to memory of 3504	4048	csrsll.exe	100
PID 4048 wrote to memory of 3504	4048	csrsll.exe	100
PID 4048 wrote to memory of 3504	4048	csrsll.exe	100
PID 4048 wrote to memory of 752	4048	csrsll.exe	101
PID 4048 wrote to memory of 752	4048	csrsll.exe	101
PID 4048 wrote to memory of 752	4048	csrsll.exe	101
PID 4048 wrote to memory of 752	4048	csrsll.exe	101
PID 4048 wrote to memory of 752	4048	csrsll.exe	101
PID 4048 wrote to memory of 752	4048	csrsll.exe	101
PID 4048 wrote to memory of 752	4048	csrsll.exe	101
PID 4048 wrote to memory of 752	4048	csrsll.exe	101

C:\Users\Admin\AppData\Local\Temp\c54d2e3dc894050e85fe70b015c60b2d89a9e481fcd6e08dfefd078979677aff.exe
"C:\Users\Admin\AppData\Local\Temp\c54d2e3dc894050e85fe70b015c60b2d89a9e481fcd6e08dfefd078979677aff.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4604
- C:\Users\Admin\AppData\Local\Temp\c54d2e3dc894050e85fe70b015c60b2d89a9e481fcd6e08dfefd078979677aff.exe
  "C:\Users\Admin\AppData\Local\Temp\c54d2e3dc894050e85fe70b015c60b2d89a9e481fcd6e08dfefd078979677aff.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3556
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\JOKKW.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4652
  - - 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:4948
- - 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:4048
  - - 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:3504
  - - 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:752

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\JOKKW.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
f934e5db67ed438dae84e5aa8da57c6f

SHA1
2f6d4a4315829cdcb2fb89bbce02891c09753ffe

SHA256
152c2323cbfc8098d294c84b728e8d716e45b5a478d14f7f88566c1da7df0014

SHA512
7c57867e0b605b7949dd0a8f39da8eacd6b69f50af4f6932f540332cfdacd87c6cba4979520706b56f1b1b90eff36f8c60499933ca333933ecc5b32f19ca1f34

Download Submit
memory/752-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/752-49-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/752-61-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/752-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/752-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/752-44-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3504-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3556-59-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3556-57-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/3556-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3556-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3556-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3556-38-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4048-39-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4048-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4048-56-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4604-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4604-12-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4604-6-0x0000000002CA0000-0x0000000002CA2000-memory.dmp

Filesize
8KB

Download
memory/4604-5-0x0000000002B80000-0x0000000002B82000-memory.dmp

Filesize
8KB

Download
memory/4604-4-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4604-3-0x0000000002A50000-0x0000000002A52000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads