modiloader | 4d8e8a869e5e2b4456696a12e0f8b0e7f6738dec57e0303a71dda53a931bd098

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
03-01-2025 22:59

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General

Target

4d8e8a869e5e2b4456696a12e0f8b0e7f6738dec57e0303a71dda53a931bd098.exe
Size

90KB
MD5

17c0954a5aaed3c3fbcaa7c34ee14072
SHA1

6186dc09cf6a2582efa66f30b81e4ffb85850ca4
SHA256

4d8e8a869e5e2b4456696a12e0f8b0e7f6738dec57e0303a71dda53a931bd098
SHA512

e5510269b671def1a4670712e4334c9367151add198793951c26bcaaabb9f52d0b07a3b96acd35865ff684dcfc00ad4fbd7202eeb25348e34b156bbe79190ec4
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oD1:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3H

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/4956-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4956-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4956-51-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4956-61-0x0000000000400000-0x0000000000414000-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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	4d8e8a869e5e2b4456696a12e0f8b0e7f6738dec57e0303a71dda53a931bd098.exe

Executes dropped EXE 3 IoCs

pid	Process
2316	csrsll.exe
1084	csrsll.exe
4956	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-1-5-21-3442511616-637977696-3186306149-1000\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 4664 set thread context of 5000	4664	4d8e8a869e5e2b4456696a12e0f8b0e7f6738dec57e0303a71dda53a931bd098.exe	82
PID 2316 set thread context of 1084	2316	csrsll.exe	95
PID 2316 set thread context of 4956	2316	csrsll.exe	96

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4664-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4664-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/5000-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/5000-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4664-13-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/5000-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0008000000023caf-29.dat	upx
behavioral2/memory/5000-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2316-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2316-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4956-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4956-46-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4956-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4956-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4956-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2316-57-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/5000-59-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1084-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4956-61-0x0000000000400000-0x0000000000414000-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	4d8e8a869e5e2b4456696a12e0f8b0e7f6738dec57e0303a71dda53a931bd098.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4d8e8a869e5e2b4456696a12e0f8b0e7f6738dec57e0303a71dda53a931bd098.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	1084	csrsll.exe
Token: SeDebugPrivilege	1084	csrsll.exe
Token: SeDebugPrivilege	1084	csrsll.exe
Token: SeDebugPrivilege	1084	csrsll.exe
Token: SeDebugPrivilege	1084	csrsll.exe
Token: SeDebugPrivilege	1084	csrsll.exe
Token: SeDebugPrivilege	1084	csrsll.exe
Token: SeDebugPrivilege	1084	csrsll.exe
Token: SeDebugPrivilege	1084	csrsll.exe
Token: SeDebugPrivilege	1084	csrsll.exe
Token: SeDebugPrivilege	1084	csrsll.exe
Token: SeDebugPrivilege	1084	csrsll.exe
Token: SeDebugPrivilege	1084	csrsll.exe
Token: SeDebugPrivilege	1084	csrsll.exe
Token: SeDebugPrivilege	1084	csrsll.exe
Token: SeDebugPrivilege	1084	csrsll.exe
Token: SeDebugPrivilege	1084	csrsll.exe
Token: SeDebugPrivilege	1084	csrsll.exe
Token: SeDebugPrivilege	1084	csrsll.exe
Token: SeDebugPrivilege	1084	csrsll.exe
Token: SeDebugPrivilege	1084	csrsll.exe
Token: SeDebugPrivilege	1084	csrsll.exe
Token: SeDebugPrivilege	1084	csrsll.exe
Token: SeDebugPrivilege	1084	csrsll.exe
Token: SeDebugPrivilege	1084	csrsll.exe
Token: SeDebugPrivilege	1084	csrsll.exe
Token: SeDebugPrivilege	1084	csrsll.exe
Token: SeDebugPrivilege	1084	csrsll.exe
Token: SeDebugPrivilege	1084	csrsll.exe
Token: SeDebugPrivilege	1084	csrsll.exe
Token: SeDebugPrivilege	1084	csrsll.exe
Token: SeDebugPrivilege	1084	csrsll.exe
Token: SeDebugPrivilege	1084	csrsll.exe
Token: SeDebugPrivilege	1084	csrsll.exe
Token: SeDebugPrivilege	1084	csrsll.exe
Token: SeDebugPrivilege	1084	csrsll.exe
Token: SeDebugPrivilege	1084	csrsll.exe
Token: SeDebugPrivilege	1084	csrsll.exe
Token: SeDebugPrivilege	1084	csrsll.exe
Token: SeDebugPrivilege	1084	csrsll.exe
Token: SeDebugPrivilege	1084	csrsll.exe
Token: SeDebugPrivilege	1084	csrsll.exe
Token: SeDebugPrivilege	1084	csrsll.exe
Token: SeDebugPrivilege	1084	csrsll.exe
Token: SeDebugPrivilege	1084	csrsll.exe
Token: SeDebugPrivilege	1084	csrsll.exe
Token: SeDebugPrivilege	1084	csrsll.exe
Token: SeDebugPrivilege	1084	csrsll.exe
Token: SeDebugPrivilege	1084	csrsll.exe
Token: SeDebugPrivilege	1084	csrsll.exe
Token: SeDebugPrivilege	1084	csrsll.exe
Token: SeDebugPrivilege	1084	csrsll.exe
Token: SeDebugPrivilege	1084	csrsll.exe
Token: SeDebugPrivilege	1084	csrsll.exe
Token: SeDebugPrivilege	1084	csrsll.exe
Token: SeDebugPrivilege	1084	csrsll.exe
Token: SeDebugPrivilege	1084	csrsll.exe
Token: SeDebugPrivilege	1084	csrsll.exe
Token: SeDebugPrivilege	1084	csrsll.exe
Token: SeDebugPrivilege	1084	csrsll.exe
Token: SeDebugPrivilege	1084	csrsll.exe
Token: SeDebugPrivilege	1084	csrsll.exe
Token: SeDebugPrivilege	1084	csrsll.exe
Token: SeDebugPrivilege	1084	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4664	4d8e8a869e5e2b4456696a12e0f8b0e7f6738dec57e0303a71dda53a931bd098.exe
5000	4d8e8a869e5e2b4456696a12e0f8b0e7f6738dec57e0303a71dda53a931bd098.exe
2316	csrsll.exe
1084	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4664 wrote to memory of 5000	4664	4d8e8a869e5e2b4456696a12e0f8b0e7f6738dec57e0303a71dda53a931bd098.exe	82
PID 4664 wrote to memory of 5000	4664	4d8e8a869e5e2b4456696a12e0f8b0e7f6738dec57e0303a71dda53a931bd098.exe	82
PID 4664 wrote to memory of 5000	4664	4d8e8a869e5e2b4456696a12e0f8b0e7f6738dec57e0303a71dda53a931bd098.exe	82
PID 4664 wrote to memory of 5000	4664	4d8e8a869e5e2b4456696a12e0f8b0e7f6738dec57e0303a71dda53a931bd098.exe	82
PID 4664 wrote to memory of 5000	4664	4d8e8a869e5e2b4456696a12e0f8b0e7f6738dec57e0303a71dda53a931bd098.exe	82
PID 4664 wrote to memory of 5000	4664	4d8e8a869e5e2b4456696a12e0f8b0e7f6738dec57e0303a71dda53a931bd098.exe	82
PID 4664 wrote to memory of 5000	4664	4d8e8a869e5e2b4456696a12e0f8b0e7f6738dec57e0303a71dda53a931bd098.exe	82
PID 4664 wrote to memory of 5000	4664	4d8e8a869e5e2b4456696a12e0f8b0e7f6738dec57e0303a71dda53a931bd098.exe	82
PID 5000 wrote to memory of 3844	5000	4d8e8a869e5e2b4456696a12e0f8b0e7f6738dec57e0303a71dda53a931bd098.exe	87
PID 5000 wrote to memory of 3844	5000	4d8e8a869e5e2b4456696a12e0f8b0e7f6738dec57e0303a71dda53a931bd098.exe	87
PID 5000 wrote to memory of 3844	5000	4d8e8a869e5e2b4456696a12e0f8b0e7f6738dec57e0303a71dda53a931bd098.exe	87
PID 3844 wrote to memory of 4228	3844	cmd.exe	90
PID 3844 wrote to memory of 4228	3844	cmd.exe	90
PID 3844 wrote to memory of 4228	3844	cmd.exe	90
PID 5000 wrote to memory of 2316	5000	4d8e8a869e5e2b4456696a12e0f8b0e7f6738dec57e0303a71dda53a931bd098.exe	91
PID 5000 wrote to memory of 2316	5000	4d8e8a869e5e2b4456696a12e0f8b0e7f6738dec57e0303a71dda53a931bd098.exe	91
PID 5000 wrote to memory of 2316	5000	4d8e8a869e5e2b4456696a12e0f8b0e7f6738dec57e0303a71dda53a931bd098.exe	91
PID 2316 wrote to memory of 1084	2316	csrsll.exe	95
PID 2316 wrote to memory of 1084	2316	csrsll.exe	95
PID 2316 wrote to memory of 1084	2316	csrsll.exe	95
PID 2316 wrote to memory of 1084	2316	csrsll.exe	95
PID 2316 wrote to memory of 1084	2316	csrsll.exe	95
PID 2316 wrote to memory of 1084	2316	csrsll.exe	95
PID 2316 wrote to memory of 1084	2316	csrsll.exe	95
PID 2316 wrote to memory of 1084	2316	csrsll.exe	95
PID 2316 wrote to memory of 4956	2316	csrsll.exe	96
PID 2316 wrote to memory of 4956	2316	csrsll.exe	96
PID 2316 wrote to memory of 4956	2316	csrsll.exe	96
PID 2316 wrote to memory of 4956	2316	csrsll.exe	96
PID 2316 wrote to memory of 4956	2316	csrsll.exe	96
PID 2316 wrote to memory of 4956	2316	csrsll.exe	96
PID 2316 wrote to memory of 4956	2316	csrsll.exe	96
PID 2316 wrote to memory of 4956	2316	csrsll.exe	96

C:\Users\Admin\AppData\Local\Temp\4d8e8a869e5e2b4456696a12e0f8b0e7f6738dec57e0303a71dda53a931bd098.exe
"C:\Users\Admin\AppData\Local\Temp\4d8e8a869e5e2b4456696a12e0f8b0e7f6738dec57e0303a71dda53a931bd098.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4664
- C:\Users\Admin\AppData\Local\Temp\4d8e8a869e5e2b4456696a12e0f8b0e7f6738dec57e0303a71dda53a931bd098.exe
  "C:\Users\Admin\AppData\Local\Temp\4d8e8a869e5e2b4456696a12e0f8b0e7f6738dec57e0303a71dda53a931bd098.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:5000
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\HWXUD.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3844
  - - 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:4228
- - 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:2316
  - - 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:1084
  - - 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:4956

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\HWXUD.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
93c9aa06e3458b3cb582b513cda2e3ba

SHA1
2357c79b33828c11084498bd2daca5da97e21755

SHA256
e08273c05870ac36a415643b1b6fb0cbc03d79844b480d8919766b0af42bd347

SHA512
c2a81871b9f7e1c6aa75f19043f91f402bc7b8ea471094f4d78e827bc7f8c1a821edcc1d1f18fabe043384ee1099e78660b365a6fc87480b8ede3d7009b31c11

Download Submit
memory/1084-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2316-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2316-57-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2316-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4664-3-0x0000000002B50000-0x0000000002B52000-memory.dmp

Filesize
8KB

Download
memory/4664-4-0x0000000002B60000-0x0000000002B62000-memory.dmp

Filesize
8KB

Download
memory/4664-6-0x0000000002B80000-0x0000000002B82000-memory.dmp

Filesize
8KB

Download
memory/4664-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4664-13-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4664-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4956-46-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4956-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4956-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4956-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4956-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4956-61-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/5000-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/5000-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/5000-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/5000-59-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/5000-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads