modiloader | c61bd926d17a408a738b79ed3761ac6dddc35fa5f50794a7a59e2eaaf8dc4b11

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
19-11-2024 12:16

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

c61bd926d17a408a738b79ed3761ac6dddc35fa5f50794a7a59e2eaaf8dc4b11.exe
Size

338KB
MD5

563dc5975e261789895fed97482b43ab
SHA1

733c8ebc3b82a42ec9b5184ec70cc877760cfecb
SHA256

c61bd926d17a408a738b79ed3761ac6dddc35fa5f50794a7a59e2eaaf8dc4b11
SHA512

05a59f4493856263afb09694b371bc38b12130acb15e57a44103a4d4d34c7ef00fb5f50010504ca48b0d5a29468696560f0446e85c5bc16ea0049d27020561a4
SSDEEP

3072:bc3sBG7mXh7m/zZM3jAbNOM6CNtDCZFc/H:w3sBz0Z4Mj72Fg

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/4464-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4464-51-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4464-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4464-57-0x0000000000400000-0x0000000000414000-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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	c61bd926d17a408a738b79ed3761ac6dddc35fa5f50794a7a59e2eaaf8dc4b11.exe

Executes dropped EXE 3 IoCs

pid	Process
1500	csrsll.exe
1664	csrsll.exe
4464	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-1-5-21-4050598569-1597076380-177084960-1000\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 2192 set thread context of 3348	2192	c61bd926d17a408a738b79ed3761ac6dddc35fa5f50794a7a59e2eaaf8dc4b11.exe	86
PID 1500 set thread context of 1664	1500	csrsll.exe	95
PID 1500 set thread context of 4464	1500	csrsll.exe	96

UPX packed file 18 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2192-0-0x0000000000400000-0x0000000000457000-memory.dmp	upx
behavioral2/memory/3348-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3348-5-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3348-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2192-12-0x0000000000400000-0x0000000000457000-memory.dmp	upx
behavioral2/files/0x000f000000023b75-26.dat	upx
behavioral2/memory/1500-36-0x0000000000400000-0x0000000000457000-memory.dmp	upx
behavioral2/memory/1500-37-0x0000000000400000-0x0000000000457000-memory.dmp	upx
behavioral2/memory/4464-40-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3348-46-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4464-49-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4464-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4464-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1500-50-0x0000000000400000-0x0000000000457000-memory.dmp	upx
behavioral2/memory/4464-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3348-53-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1664-56-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4464-57-0x0000000000400000-0x0000000000414000-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	c61bd926d17a408a738b79ed3761ac6dddc35fa5f50794a7a59e2eaaf8dc4b11.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c61bd926d17a408a738b79ed3761ac6dddc35fa5f50794a7a59e2eaaf8dc4b11.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1664	csrsll.exe
Token: SeDebugPrivilege	1664	csrsll.exe
Token: SeDebugPrivilege	1664	csrsll.exe
Token: SeDebugPrivilege	1664	csrsll.exe
Token: SeDebugPrivilege	1664	csrsll.exe
Token: SeDebugPrivilege	1664	csrsll.exe
Token: SeDebugPrivilege	1664	csrsll.exe
Token: SeDebugPrivilege	1664	csrsll.exe
Token: SeDebugPrivilege	1664	csrsll.exe
Token: SeDebugPrivilege	1664	csrsll.exe
Token: SeDebugPrivilege	1664	csrsll.exe
Token: SeDebugPrivilege	1664	csrsll.exe
Token: SeDebugPrivilege	1664	csrsll.exe
Token: SeDebugPrivilege	1664	csrsll.exe
Token: SeDebugPrivilege	1664	csrsll.exe
Token: SeDebugPrivilege	1664	csrsll.exe
Token: SeDebugPrivilege	1664	csrsll.exe
Token: SeDebugPrivilege	1664	csrsll.exe
Token: SeDebugPrivilege	1664	csrsll.exe
Token: SeDebugPrivilege	1664	csrsll.exe
Token: SeDebugPrivilege	1664	csrsll.exe
Token: SeDebugPrivilege	1664	csrsll.exe
Token: SeDebugPrivilege	1664	csrsll.exe
Token: SeDebugPrivilege	1664	csrsll.exe
Token: SeDebugPrivilege	1664	csrsll.exe
Token: SeDebugPrivilege	1664	csrsll.exe
Token: SeDebugPrivilege	1664	csrsll.exe
Token: SeDebugPrivilege	1664	csrsll.exe
Token: SeDebugPrivilege	1664	csrsll.exe
Token: SeDebugPrivilege	1664	csrsll.exe
Token: SeDebugPrivilege	1664	csrsll.exe
Token: SeDebugPrivilege	1664	csrsll.exe
Token: SeDebugPrivilege	1664	csrsll.exe
Token: SeDebugPrivilege	1664	csrsll.exe
Token: SeDebugPrivilege	1664	csrsll.exe
Token: SeDebugPrivilege	1664	csrsll.exe
Token: SeDebugPrivilege	1664	csrsll.exe
Token: SeDebugPrivilege	1664	csrsll.exe
Token: SeDebugPrivilege	1664	csrsll.exe
Token: SeDebugPrivilege	1664	csrsll.exe
Token: SeDebugPrivilege	1664	csrsll.exe
Token: SeDebugPrivilege	1664	csrsll.exe
Token: SeDebugPrivilege	1664	csrsll.exe
Token: SeDebugPrivilege	1664	csrsll.exe
Token: SeDebugPrivilege	1664	csrsll.exe
Token: SeDebugPrivilege	1664	csrsll.exe
Token: SeDebugPrivilege	1664	csrsll.exe
Token: SeDebugPrivilege	1664	csrsll.exe
Token: SeDebugPrivilege	1664	csrsll.exe
Token: SeDebugPrivilege	1664	csrsll.exe
Token: SeDebugPrivilege	1664	csrsll.exe
Token: SeDebugPrivilege	1664	csrsll.exe
Token: SeDebugPrivilege	1664	csrsll.exe
Token: SeDebugPrivilege	1664	csrsll.exe
Token: SeDebugPrivilege	1664	csrsll.exe
Token: SeDebugPrivilege	1664	csrsll.exe
Token: SeDebugPrivilege	1664	csrsll.exe
Token: SeDebugPrivilege	1664	csrsll.exe
Token: SeDebugPrivilege	1664	csrsll.exe
Token: SeDebugPrivilege	1664	csrsll.exe
Token: SeDebugPrivilege	1664	csrsll.exe
Token: SeDebugPrivilege	1664	csrsll.exe
Token: SeDebugPrivilege	1664	csrsll.exe
Token: SeDebugPrivilege	1664	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2192	c61bd926d17a408a738b79ed3761ac6dddc35fa5f50794a7a59e2eaaf8dc4b11.exe
3348	c61bd926d17a408a738b79ed3761ac6dddc35fa5f50794a7a59e2eaaf8dc4b11.exe
1500	csrsll.exe
1664	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2192 wrote to memory of 3348	2192	c61bd926d17a408a738b79ed3761ac6dddc35fa5f50794a7a59e2eaaf8dc4b11.exe	86
PID 2192 wrote to memory of 3348	2192	c61bd926d17a408a738b79ed3761ac6dddc35fa5f50794a7a59e2eaaf8dc4b11.exe	86
PID 2192 wrote to memory of 3348	2192	c61bd926d17a408a738b79ed3761ac6dddc35fa5f50794a7a59e2eaaf8dc4b11.exe	86
PID 2192 wrote to memory of 3348	2192	c61bd926d17a408a738b79ed3761ac6dddc35fa5f50794a7a59e2eaaf8dc4b11.exe	86
PID 2192 wrote to memory of 3348	2192	c61bd926d17a408a738b79ed3761ac6dddc35fa5f50794a7a59e2eaaf8dc4b11.exe	86
PID 2192 wrote to memory of 3348	2192	c61bd926d17a408a738b79ed3761ac6dddc35fa5f50794a7a59e2eaaf8dc4b11.exe	86
PID 2192 wrote to memory of 3348	2192	c61bd926d17a408a738b79ed3761ac6dddc35fa5f50794a7a59e2eaaf8dc4b11.exe	86
PID 2192 wrote to memory of 3348	2192	c61bd926d17a408a738b79ed3761ac6dddc35fa5f50794a7a59e2eaaf8dc4b11.exe	86
PID 3348 wrote to memory of 3552	3348	c61bd926d17a408a738b79ed3761ac6dddc35fa5f50794a7a59e2eaaf8dc4b11.exe	87
PID 3348 wrote to memory of 3552	3348	c61bd926d17a408a738b79ed3761ac6dddc35fa5f50794a7a59e2eaaf8dc4b11.exe	87
PID 3348 wrote to memory of 3552	3348	c61bd926d17a408a738b79ed3761ac6dddc35fa5f50794a7a59e2eaaf8dc4b11.exe	87
PID 3552 wrote to memory of 3596	3552	cmd.exe	92
PID 3552 wrote to memory of 3596	3552	cmd.exe	92
PID 3552 wrote to memory of 3596	3552	cmd.exe	92
PID 3348 wrote to memory of 1500	3348	c61bd926d17a408a738b79ed3761ac6dddc35fa5f50794a7a59e2eaaf8dc4b11.exe	93
PID 3348 wrote to memory of 1500	3348	c61bd926d17a408a738b79ed3761ac6dddc35fa5f50794a7a59e2eaaf8dc4b11.exe	93
PID 3348 wrote to memory of 1500	3348	c61bd926d17a408a738b79ed3761ac6dddc35fa5f50794a7a59e2eaaf8dc4b11.exe	93
PID 1500 wrote to memory of 1664	1500	csrsll.exe	95
PID 1500 wrote to memory of 1664	1500	csrsll.exe	95
PID 1500 wrote to memory of 1664	1500	csrsll.exe	95
PID 1500 wrote to memory of 1664	1500	csrsll.exe	95
PID 1500 wrote to memory of 1664	1500	csrsll.exe	95
PID 1500 wrote to memory of 1664	1500	csrsll.exe	95
PID 1500 wrote to memory of 1664	1500	csrsll.exe	95
PID 1500 wrote to memory of 1664	1500	csrsll.exe	95
PID 1500 wrote to memory of 4464	1500	csrsll.exe	96
PID 1500 wrote to memory of 4464	1500	csrsll.exe	96
PID 1500 wrote to memory of 4464	1500	csrsll.exe	96
PID 1500 wrote to memory of 4464	1500	csrsll.exe	96
PID 1500 wrote to memory of 4464	1500	csrsll.exe	96
PID 1500 wrote to memory of 4464	1500	csrsll.exe	96
PID 1500 wrote to memory of 4464	1500	csrsll.exe	96
PID 1500 wrote to memory of 4464	1500	csrsll.exe	96

C:\Users\Admin\AppData\Local\Temp\c61bd926d17a408a738b79ed3761ac6dddc35fa5f50794a7a59e2eaaf8dc4b11.exe
"C:\Users\Admin\AppData\Local\Temp\c61bd926d17a408a738b79ed3761ac6dddc35fa5f50794a7a59e2eaaf8dc4b11.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2192
- C:\Users\Admin\AppData\Local\Temp\c61bd926d17a408a738b79ed3761ac6dddc35fa5f50794a7a59e2eaaf8dc4b11.exe
  "C:\Users\Admin\AppData\Local\Temp\c61bd926d17a408a738b79ed3761ac6dddc35fa5f50794a7a59e2eaaf8dc4b11.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3348
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\MQLTH.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3552
  - - 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:3596
- - 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:1500
  - - 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:1664
  - - 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:4464

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\MQLTH.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
338KB

MD5
5a8809c6e55e534b6bc05ecc63c91aa1

SHA1
f6608e704b7b50717571fdd9cb39f7d5be63ba47

SHA256
42692e13ac61c1724f4486871cca27a14a7af67e0cc2e0f156c30452e1c67956

SHA512
94ebcabd9a6915cc5919e87470414c70fd09fed826a96645e6044b74f79d29f2356fc2aee201ce7705bf404bb699d3071ed6b8042fa3951f9d79ae54e036c0ff

Download Submit
memory/1500-37-0x0000000000400000-0x0000000000457000-memory.dmp

Filesize
348KB

Download
memory/1500-50-0x0000000000400000-0x0000000000457000-memory.dmp

Filesize
348KB

Download
memory/1500-36-0x0000000000400000-0x0000000000457000-memory.dmp

Filesize
348KB

Download
memory/1664-56-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2192-3-0x0000000002310000-0x0000000002311000-memory.dmp

Filesize
4KB

Download
memory/2192-4-0x0000000002330000-0x0000000002331000-memory.dmp

Filesize
4KB

Download
memory/2192-0-0x0000000000400000-0x0000000000457000-memory.dmp

Filesize
348KB

Download
memory/2192-12-0x0000000000400000-0x0000000000457000-memory.dmp

Filesize
348KB

Download
memory/3348-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3348-46-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3348-5-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3348-53-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3348-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4464-40-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4464-49-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4464-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4464-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4464-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4464-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads