modiloader | 52ee351af182d43ef7f9e0604f2972375a2a582ec1c89d24969ed84591db99ba

Analysis

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

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
30/11/2024, 01:25

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General

Target

52ee351af182d43ef7f9e0604f2972375a2a582ec1c89d24969ed84591db99baN.exe
Size

90KB
MD5

d0d72ff11b7b325a1c7ed46d5e5db940
SHA1

7b5b6331ba64368666be13e5e1eebdcd62525669
SHA256

52ee351af182d43ef7f9e0604f2972375a2a582ec1c89d24969ed84591db99ba
SHA512

b8ea0a9ae62f9eb1b17b2c3765e547c8e93d2cd899017e372ad790680dd561c4125afc2989e5e78929e740cbe2d413caa7c3e39d8c08d22013bf31fc98eaddbb
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDO:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3o

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/2268-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2268-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2268-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2268-61-0x0000000000400000-0x0000000000414000-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	52ee351af182d43ef7f9e0604f2972375a2a582ec1c89d24969ed84591db99baN.exe

Executes dropped EXE 3 IoCs

pid	Process
2920	csrsll.exe
5096	csrsll.exe
2268	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 2444 set thread context of 1812	2444	52ee351af182d43ef7f9e0604f2972375a2a582ec1c89d24969ed84591db99baN.exe	83
PID 2920 set thread context of 5096	2920	csrsll.exe	102
PID 2920 set thread context of 2268	2920	csrsll.exe	103

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2444-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2444-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1812-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1812-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2444-11-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1812-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0009000000023c51-29.dat	upx
behavioral2/memory/1812-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2920-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2920-43-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2268-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2268-46-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2268-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2268-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2920-57-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2268-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1812-59-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/5096-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2268-61-0x0000000000400000-0x0000000000414000-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	52ee351af182d43ef7f9e0604f2972375a2a582ec1c89d24969ed84591db99baN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	52ee351af182d43ef7f9e0604f2972375a2a582ec1c89d24969ed84591db99baN.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	5096	csrsll.exe
Token: SeDebugPrivilege	5096	csrsll.exe
Token: SeDebugPrivilege	5096	csrsll.exe
Token: SeDebugPrivilege	5096	csrsll.exe
Token: SeDebugPrivilege	5096	csrsll.exe
Token: SeDebugPrivilege	5096	csrsll.exe
Token: SeDebugPrivilege	5096	csrsll.exe
Token: SeDebugPrivilege	5096	csrsll.exe
Token: SeDebugPrivilege	5096	csrsll.exe
Token: SeDebugPrivilege	5096	csrsll.exe
Token: SeDebugPrivilege	5096	csrsll.exe
Token: SeDebugPrivilege	5096	csrsll.exe
Token: SeDebugPrivilege	5096	csrsll.exe
Token: SeDebugPrivilege	5096	csrsll.exe
Token: SeDebugPrivilege	5096	csrsll.exe
Token: SeDebugPrivilege	5096	csrsll.exe
Token: SeDebugPrivilege	5096	csrsll.exe
Token: SeDebugPrivilege	5096	csrsll.exe
Token: SeDebugPrivilege	5096	csrsll.exe
Token: SeDebugPrivilege	5096	csrsll.exe
Token: SeDebugPrivilege	5096	csrsll.exe
Token: SeDebugPrivilege	5096	csrsll.exe
Token: SeDebugPrivilege	5096	csrsll.exe
Token: SeDebugPrivilege	5096	csrsll.exe
Token: SeDebugPrivilege	5096	csrsll.exe
Token: SeDebugPrivilege	5096	csrsll.exe
Token: SeDebugPrivilege	5096	csrsll.exe
Token: SeDebugPrivilege	5096	csrsll.exe
Token: SeDebugPrivilege	5096	csrsll.exe
Token: SeDebugPrivilege	5096	csrsll.exe
Token: SeDebugPrivilege	5096	csrsll.exe
Token: SeDebugPrivilege	5096	csrsll.exe
Token: SeDebugPrivilege	5096	csrsll.exe
Token: SeDebugPrivilege	5096	csrsll.exe
Token: SeDebugPrivilege	5096	csrsll.exe
Token: SeDebugPrivilege	5096	csrsll.exe
Token: SeDebugPrivilege	5096	csrsll.exe
Token: SeDebugPrivilege	5096	csrsll.exe
Token: SeDebugPrivilege	5096	csrsll.exe
Token: SeDebugPrivilege	5096	csrsll.exe
Token: SeDebugPrivilege	5096	csrsll.exe
Token: SeDebugPrivilege	5096	csrsll.exe
Token: SeDebugPrivilege	5096	csrsll.exe
Token: SeDebugPrivilege	5096	csrsll.exe
Token: SeDebugPrivilege	5096	csrsll.exe
Token: SeDebugPrivilege	5096	csrsll.exe
Token: SeDebugPrivilege	5096	csrsll.exe
Token: SeDebugPrivilege	5096	csrsll.exe
Token: SeDebugPrivilege	5096	csrsll.exe
Token: SeDebugPrivilege	5096	csrsll.exe
Token: SeDebugPrivilege	5096	csrsll.exe
Token: SeDebugPrivilege	5096	csrsll.exe
Token: SeDebugPrivilege	5096	csrsll.exe
Token: SeDebugPrivilege	5096	csrsll.exe
Token: SeDebugPrivilege	5096	csrsll.exe
Token: SeDebugPrivilege	5096	csrsll.exe
Token: SeDebugPrivilege	5096	csrsll.exe
Token: SeDebugPrivilege	5096	csrsll.exe
Token: SeDebugPrivilege	5096	csrsll.exe
Token: SeDebugPrivilege	5096	csrsll.exe
Token: SeDebugPrivilege	5096	csrsll.exe
Token: SeDebugPrivilege	5096	csrsll.exe
Token: SeDebugPrivilege	5096	csrsll.exe
Token: SeDebugPrivilege	5096	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2444	52ee351af182d43ef7f9e0604f2972375a2a582ec1c89d24969ed84591db99baN.exe
1812	52ee351af182d43ef7f9e0604f2972375a2a582ec1c89d24969ed84591db99baN.exe
2920	csrsll.exe
5096	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2444 wrote to memory of 1812	2444	52ee351af182d43ef7f9e0604f2972375a2a582ec1c89d24969ed84591db99baN.exe	83
PID 2444 wrote to memory of 1812	2444	52ee351af182d43ef7f9e0604f2972375a2a582ec1c89d24969ed84591db99baN.exe	83
PID 2444 wrote to memory of 1812	2444	52ee351af182d43ef7f9e0604f2972375a2a582ec1c89d24969ed84591db99baN.exe	83
PID 2444 wrote to memory of 1812	2444	52ee351af182d43ef7f9e0604f2972375a2a582ec1c89d24969ed84591db99baN.exe	83
PID 2444 wrote to memory of 1812	2444	52ee351af182d43ef7f9e0604f2972375a2a582ec1c89d24969ed84591db99baN.exe	83
PID 2444 wrote to memory of 1812	2444	52ee351af182d43ef7f9e0604f2972375a2a582ec1c89d24969ed84591db99baN.exe	83
PID 2444 wrote to memory of 1812	2444	52ee351af182d43ef7f9e0604f2972375a2a582ec1c89d24969ed84591db99baN.exe	83
PID 2444 wrote to memory of 1812	2444	52ee351af182d43ef7f9e0604f2972375a2a582ec1c89d24969ed84591db99baN.exe	83
PID 1812 wrote to memory of 8	1812	52ee351af182d43ef7f9e0604f2972375a2a582ec1c89d24969ed84591db99baN.exe	90
PID 1812 wrote to memory of 8	1812	52ee351af182d43ef7f9e0604f2972375a2a582ec1c89d24969ed84591db99baN.exe	90
PID 1812 wrote to memory of 8	1812	52ee351af182d43ef7f9e0604f2972375a2a582ec1c89d24969ed84591db99baN.exe	90
PID 8 wrote to memory of 4584	8	cmd.exe	94
PID 8 wrote to memory of 4584	8	cmd.exe	94
PID 8 wrote to memory of 4584	8	cmd.exe	94
PID 1812 wrote to memory of 2920	1812	52ee351af182d43ef7f9e0604f2972375a2a582ec1c89d24969ed84591db99baN.exe	95
PID 1812 wrote to memory of 2920	1812	52ee351af182d43ef7f9e0604f2972375a2a582ec1c89d24969ed84591db99baN.exe	95
PID 1812 wrote to memory of 2920	1812	52ee351af182d43ef7f9e0604f2972375a2a582ec1c89d24969ed84591db99baN.exe	95
PID 2920 wrote to memory of 5096	2920	csrsll.exe	102
PID 2920 wrote to memory of 5096	2920	csrsll.exe	102
PID 2920 wrote to memory of 5096	2920	csrsll.exe	102
PID 2920 wrote to memory of 5096	2920	csrsll.exe	102
PID 2920 wrote to memory of 5096	2920	csrsll.exe	102
PID 2920 wrote to memory of 5096	2920	csrsll.exe	102
PID 2920 wrote to memory of 5096	2920	csrsll.exe	102
PID 2920 wrote to memory of 5096	2920	csrsll.exe	102
PID 2920 wrote to memory of 2268	2920	csrsll.exe	103
PID 2920 wrote to memory of 2268	2920	csrsll.exe	103
PID 2920 wrote to memory of 2268	2920	csrsll.exe	103
PID 2920 wrote to memory of 2268	2920	csrsll.exe	103
PID 2920 wrote to memory of 2268	2920	csrsll.exe	103
PID 2920 wrote to memory of 2268	2920	csrsll.exe	103
PID 2920 wrote to memory of 2268	2920	csrsll.exe	103
PID 2920 wrote to memory of 2268	2920	csrsll.exe	103

C:\Users\Admin\AppData\Local\Temp\52ee351af182d43ef7f9e0604f2972375a2a582ec1c89d24969ed84591db99baN.exe
"C:\Users\Admin\AppData\Local\Temp\52ee351af182d43ef7f9e0604f2972375a2a582ec1c89d24969ed84591db99baN.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2444
- C:\Users\Admin\AppData\Local\Temp\52ee351af182d43ef7f9e0604f2972375a2a582ec1c89d24969ed84591db99baN.exe
  "C:\Users\Admin\AppData\Local\Temp\52ee351af182d43ef7f9e0604f2972375a2a582ec1c89d24969ed84591db99baN.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1812
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\TXJKH.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:8
  - - 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:4584
- - 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:2920
  - - 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:5096
  - - 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:2268

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\TXJKH.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
3d7f04d2b1dc5fc90cce3b5bd12fb021

SHA1
5fa4ab3c99ea260c95fdaf60ae8d2cf3d3c3fa3b

SHA256
e2ac3e7ea723f039a0280e86e66442711c596193ecd72e1261489647dc27d9e8

SHA512
077a4a8527203ba84b6342f4826db47ff1d0681a8f5b6888d0ea09a63ecc6ceee440d369ea6133f702c6700bc297513393323d3e44ac9f4292b520f366bcd7f6

Download Submit
memory/1812-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1812-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1812-59-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1812-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1812-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2268-46-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2268-61-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2268-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2268-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2268-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2268-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2444-11-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2444-4-0x0000000002C60000-0x0000000002C62000-memory.dmp

Filesize
8KB

Download
memory/2444-3-0x0000000002B50000-0x0000000002B52000-memory.dmp

Filesize
8KB

Download
memory/2444-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2444-6-0x0000000002C80000-0x0000000002C82000-memory.dmp

Filesize
8KB

Download
memory/2444-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2920-43-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2920-57-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2920-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/5096-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads