modiloader | 42eacad6a447f7d9a75d0115137bb285f0125a2a6199dbea1c054ff9a2d22bf7

Analysis

max time kernel
119s
max time network
118s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
22-01-2025 05:39

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General

Target

42eacad6a447f7d9a75d0115137bb285f0125a2a6199dbea1c054ff9a2d22bf7.exe
Size

90KB
MD5

9b214543712d577862eaf77e9d47a33b
SHA1

65222eb581e6fa03886d37e5ebb6b37b4563d047
SHA256

42eacad6a447f7d9a75d0115137bb285f0125a2a6199dbea1c054ff9a2d22bf7
SHA512

50dc4e39e628e26e9c66e91eaccbf307932b087e5702205cd81e2b9b4aba9648249fcbb7eabeff47825ed23c7022864261f87033d189ecfedeca645622d08996
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDK:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3c

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/4780-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4780-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4780-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4780-61-0x0000000000400000-0x0000000000414000-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-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	42eacad6a447f7d9a75d0115137bb285f0125a2a6199dbea1c054ff9a2d22bf7.exe

Executes dropped EXE 3 IoCs

pid	Process
3052	csrsll.exe
3284	csrsll.exe
4780	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-1-5-21-3350944739-639801879-157714471-1000\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 1032 set thread context of 2220	1032	42eacad6a447f7d9a75d0115137bb285f0125a2a6199dbea1c054ff9a2d22bf7.exe	83
PID 3052 set thread context of 3284	3052	csrsll.exe	100
PID 3052 set thread context of 4780	3052	csrsll.exe	101

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1032-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1032-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2220-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2220-10-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2220-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1032-13-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x0008000000023c96-28.dat	upx
behavioral2/memory/2220-38-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3052-39-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3052-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4780-44-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3052-53-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4780-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4780-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2220-59-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4780-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4780-49-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3284-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4780-61-0x0000000000400000-0x0000000000414000-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	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	42eacad6a447f7d9a75d0115137bb285f0125a2a6199dbea1c054ff9a2d22bf7.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	42eacad6a447f7d9a75d0115137bb285f0125a2a6199dbea1c054ff9a2d22bf7.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3284	csrsll.exe
Token: SeDebugPrivilege	3284	csrsll.exe
Token: SeDebugPrivilege	3284	csrsll.exe
Token: SeDebugPrivilege	3284	csrsll.exe
Token: SeDebugPrivilege	3284	csrsll.exe
Token: SeDebugPrivilege	3284	csrsll.exe
Token: SeDebugPrivilege	3284	csrsll.exe
Token: SeDebugPrivilege	3284	csrsll.exe
Token: SeDebugPrivilege	3284	csrsll.exe
Token: SeDebugPrivilege	3284	csrsll.exe
Token: SeDebugPrivilege	3284	csrsll.exe
Token: SeDebugPrivilege	3284	csrsll.exe
Token: SeDebugPrivilege	3284	csrsll.exe
Token: SeDebugPrivilege	3284	csrsll.exe
Token: SeDebugPrivilege	3284	csrsll.exe
Token: SeDebugPrivilege	3284	csrsll.exe
Token: SeDebugPrivilege	3284	csrsll.exe
Token: SeDebugPrivilege	3284	csrsll.exe
Token: SeDebugPrivilege	3284	csrsll.exe
Token: SeDebugPrivilege	3284	csrsll.exe
Token: SeDebugPrivilege	3284	csrsll.exe
Token: SeDebugPrivilege	3284	csrsll.exe
Token: SeDebugPrivilege	3284	csrsll.exe
Token: SeDebugPrivilege	3284	csrsll.exe
Token: SeDebugPrivilege	3284	csrsll.exe
Token: SeDebugPrivilege	3284	csrsll.exe
Token: SeDebugPrivilege	3284	csrsll.exe
Token: SeDebugPrivilege	3284	csrsll.exe
Token: SeDebugPrivilege	3284	csrsll.exe
Token: SeDebugPrivilege	3284	csrsll.exe
Token: SeDebugPrivilege	3284	csrsll.exe
Token: SeDebugPrivilege	3284	csrsll.exe
Token: SeDebugPrivilege	3284	csrsll.exe
Token: SeDebugPrivilege	3284	csrsll.exe
Token: SeDebugPrivilege	3284	csrsll.exe
Token: SeDebugPrivilege	3284	csrsll.exe
Token: SeDebugPrivilege	3284	csrsll.exe
Token: SeDebugPrivilege	3284	csrsll.exe
Token: SeDebugPrivilege	3284	csrsll.exe
Token: SeDebugPrivilege	3284	csrsll.exe
Token: SeDebugPrivilege	3284	csrsll.exe
Token: SeDebugPrivilege	3284	csrsll.exe
Token: SeDebugPrivilege	3284	csrsll.exe
Token: SeDebugPrivilege	3284	csrsll.exe
Token: SeDebugPrivilege	3284	csrsll.exe
Token: SeDebugPrivilege	3284	csrsll.exe
Token: SeDebugPrivilege	3284	csrsll.exe
Token: SeDebugPrivilege	3284	csrsll.exe
Token: SeDebugPrivilege	3284	csrsll.exe
Token: SeDebugPrivilege	3284	csrsll.exe
Token: SeDebugPrivilege	3284	csrsll.exe
Token: SeDebugPrivilege	3284	csrsll.exe
Token: SeDebugPrivilege	3284	csrsll.exe
Token: SeDebugPrivilege	3284	csrsll.exe
Token: SeDebugPrivilege	3284	csrsll.exe
Token: SeDebugPrivilege	3284	csrsll.exe
Token: SeDebugPrivilege	3284	csrsll.exe
Token: SeDebugPrivilege	3284	csrsll.exe
Token: SeDebugPrivilege	3284	csrsll.exe
Token: SeDebugPrivilege	3284	csrsll.exe
Token: SeDebugPrivilege	3284	csrsll.exe
Token: SeDebugPrivilege	3284	csrsll.exe
Token: SeDebugPrivilege	3284	csrsll.exe
Token: SeDebugPrivilege	3284	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1032	42eacad6a447f7d9a75d0115137bb285f0125a2a6199dbea1c054ff9a2d22bf7.exe
2220	42eacad6a447f7d9a75d0115137bb285f0125a2a6199dbea1c054ff9a2d22bf7.exe
3052	csrsll.exe
3284	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 1032 wrote to memory of 2220	1032	42eacad6a447f7d9a75d0115137bb285f0125a2a6199dbea1c054ff9a2d22bf7.exe	83
PID 1032 wrote to memory of 2220	1032	42eacad6a447f7d9a75d0115137bb285f0125a2a6199dbea1c054ff9a2d22bf7.exe	83
PID 1032 wrote to memory of 2220	1032	42eacad6a447f7d9a75d0115137bb285f0125a2a6199dbea1c054ff9a2d22bf7.exe	83
PID 1032 wrote to memory of 2220	1032	42eacad6a447f7d9a75d0115137bb285f0125a2a6199dbea1c054ff9a2d22bf7.exe	83
PID 1032 wrote to memory of 2220	1032	42eacad6a447f7d9a75d0115137bb285f0125a2a6199dbea1c054ff9a2d22bf7.exe	83
PID 1032 wrote to memory of 2220	1032	42eacad6a447f7d9a75d0115137bb285f0125a2a6199dbea1c054ff9a2d22bf7.exe	83
PID 1032 wrote to memory of 2220	1032	42eacad6a447f7d9a75d0115137bb285f0125a2a6199dbea1c054ff9a2d22bf7.exe	83
PID 1032 wrote to memory of 2220	1032	42eacad6a447f7d9a75d0115137bb285f0125a2a6199dbea1c054ff9a2d22bf7.exe	83
PID 2220 wrote to memory of 4868	2220	42eacad6a447f7d9a75d0115137bb285f0125a2a6199dbea1c054ff9a2d22bf7.exe	86
PID 2220 wrote to memory of 4868	2220	42eacad6a447f7d9a75d0115137bb285f0125a2a6199dbea1c054ff9a2d22bf7.exe	86
PID 2220 wrote to memory of 4868	2220	42eacad6a447f7d9a75d0115137bb285f0125a2a6199dbea1c054ff9a2d22bf7.exe	86
PID 4868 wrote to memory of 4812	4868	cmd.exe	90
PID 4868 wrote to memory of 4812	4868	cmd.exe	90
PID 4868 wrote to memory of 4812	4868	cmd.exe	90
PID 2220 wrote to memory of 3052	2220	42eacad6a447f7d9a75d0115137bb285f0125a2a6199dbea1c054ff9a2d22bf7.exe	91
PID 2220 wrote to memory of 3052	2220	42eacad6a447f7d9a75d0115137bb285f0125a2a6199dbea1c054ff9a2d22bf7.exe	91
PID 2220 wrote to memory of 3052	2220	42eacad6a447f7d9a75d0115137bb285f0125a2a6199dbea1c054ff9a2d22bf7.exe	91
PID 3052 wrote to memory of 3284	3052	csrsll.exe	100
PID 3052 wrote to memory of 3284	3052	csrsll.exe	100
PID 3052 wrote to memory of 3284	3052	csrsll.exe	100
PID 3052 wrote to memory of 3284	3052	csrsll.exe	100
PID 3052 wrote to memory of 3284	3052	csrsll.exe	100
PID 3052 wrote to memory of 3284	3052	csrsll.exe	100
PID 3052 wrote to memory of 3284	3052	csrsll.exe	100
PID 3052 wrote to memory of 3284	3052	csrsll.exe	100
PID 3052 wrote to memory of 4780	3052	csrsll.exe	101
PID 3052 wrote to memory of 4780	3052	csrsll.exe	101
PID 3052 wrote to memory of 4780	3052	csrsll.exe	101
PID 3052 wrote to memory of 4780	3052	csrsll.exe	101
PID 3052 wrote to memory of 4780	3052	csrsll.exe	101
PID 3052 wrote to memory of 4780	3052	csrsll.exe	101
PID 3052 wrote to memory of 4780	3052	csrsll.exe	101
PID 3052 wrote to memory of 4780	3052	csrsll.exe	101

C:\Users\Admin\AppData\Local\Temp\42eacad6a447f7d9a75d0115137bb285f0125a2a6199dbea1c054ff9a2d22bf7.exe
"C:\Users\Admin\AppData\Local\Temp\42eacad6a447f7d9a75d0115137bb285f0125a2a6199dbea1c054ff9a2d22bf7.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1032
- C:\Users\Admin\AppData\Local\Temp\42eacad6a447f7d9a75d0115137bb285f0125a2a6199dbea1c054ff9a2d22bf7.exe
  "C:\Users\Admin\AppData\Local\Temp\42eacad6a447f7d9a75d0115137bb285f0125a2a6199dbea1c054ff9a2d22bf7.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2220
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\PBJBS.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4868
  - - 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:4812
- - 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:3052
  - - 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:3284
  - - 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:4780

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\PBJBS.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
66001c4e11006c8cbe9c8e87b0aa3b71

SHA1
679063b6344c3d97c10e5b252baa78e86c6fef61

SHA256
09da4c9fd1ac6e19511a293b17f73f2dc3e0630b3010b72254ce6ae6df316f14

SHA512
d8bf155ff01aa067d312644fbb2564e90e4643a796ab3e48c2aefa5109e284bc30beb94cca0cfd5efe32561debf3efb2fac8d0d408143859f4045203b7bf6f62

Download Submit
memory/1032-13-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1032-3-0x0000000002300000-0x0000000002302000-memory.dmp

Filesize
8KB

Download
memory/1032-4-0x0000000002310000-0x0000000002312000-memory.dmp

Filesize
8KB

Download
memory/1032-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1032-6-0x0000000002330000-0x0000000002332000-memory.dmp

Filesize
8KB

Download
memory/1032-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2220-57-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/2220-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2220-10-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2220-38-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2220-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2220-59-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3052-39-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3052-53-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3052-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3284-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4780-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4780-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4780-44-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4780-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4780-49-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4780-61-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads