modiloader | f8748b6c94d99136e695f0cdb2c4e2e8f7c632edef4a129f3166bf018354a264

Analysis

max time kernel
149s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
28-12-2024 04:32

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General

Target

f8748b6c94d99136e695f0cdb2c4e2e8f7c632edef4a129f3166bf018354a264.exe
Size

90KB
MD5

cf06b01884cc385a5052575d07145816
SHA1

52af8d0bfa381dffedc4bfd9c2755ba9bb12f19c
SHA256

f8748b6c94d99136e695f0cdb2c4e2e8f7c632edef4a129f3166bf018354a264
SHA512

48a600a2c16a5ba4d3e01d5f44758db8e6b0d1393eae2360f5a2a5eb042e1ad0c60539639f7a2bb64f87157894cb91f8e3c605a1bc6030cdbb28e3a8dc2c030a
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDu: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/4644-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4644-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4644-57-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4644-62-0x0000000000400000-0x0000000000414000-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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	f8748b6c94d99136e695f0cdb2c4e2e8f7c632edef4a129f3166bf018354a264.exe

Executes dropped EXE 3 IoCs

pid	Process
552	csrsll.exe
2616	csrsll.exe
4644	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-1-5-21-3227495264-2217614367-4027411560-1000\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 2724 set thread context of 2136	2724	f8748b6c94d99136e695f0cdb2c4e2e8f7c632edef4a129f3166bf018354a264.exe	82
PID 552 set thread context of 2616	552	csrsll.exe	95
PID 552 set thread context of 4644	552	csrsll.exe	96

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2724-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2724-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2136-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2136-10-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2136-14-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2724-13-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x000b000000023b69-30.dat	upx
behavioral2/memory/2136-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/552-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/552-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4644-47-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4644-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4644-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4644-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4644-57-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/552-56-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2136-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2616-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4644-62-0x0000000000400000-0x0000000000414000-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	f8748b6c94d99136e695f0cdb2c4e2e8f7c632edef4a129f3166bf018354a264.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f8748b6c94d99136e695f0cdb2c4e2e8f7c632edef4a129f3166bf018354a264.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	2616	csrsll.exe
Token: SeDebugPrivilege	2616	csrsll.exe
Token: SeDebugPrivilege	2616	csrsll.exe
Token: SeDebugPrivilege	2616	csrsll.exe
Token: SeDebugPrivilege	2616	csrsll.exe
Token: SeDebugPrivilege	2616	csrsll.exe
Token: SeDebugPrivilege	2616	csrsll.exe
Token: SeDebugPrivilege	2616	csrsll.exe
Token: SeDebugPrivilege	2616	csrsll.exe
Token: SeDebugPrivilege	2616	csrsll.exe
Token: SeDebugPrivilege	2616	csrsll.exe
Token: SeDebugPrivilege	2616	csrsll.exe
Token: SeDebugPrivilege	2616	csrsll.exe
Token: SeDebugPrivilege	2616	csrsll.exe
Token: SeDebugPrivilege	2616	csrsll.exe
Token: SeDebugPrivilege	2616	csrsll.exe
Token: SeDebugPrivilege	2616	csrsll.exe
Token: SeDebugPrivilege	2616	csrsll.exe
Token: SeDebugPrivilege	2616	csrsll.exe
Token: SeDebugPrivilege	2616	csrsll.exe
Token: SeDebugPrivilege	2616	csrsll.exe
Token: SeDebugPrivilege	2616	csrsll.exe
Token: SeDebugPrivilege	2616	csrsll.exe
Token: SeDebugPrivilege	2616	csrsll.exe
Token: SeDebugPrivilege	2616	csrsll.exe
Token: SeDebugPrivilege	2616	csrsll.exe
Token: SeDebugPrivilege	2616	csrsll.exe
Token: SeDebugPrivilege	2616	csrsll.exe
Token: SeDebugPrivilege	2616	csrsll.exe
Token: SeDebugPrivilege	2616	csrsll.exe
Token: SeDebugPrivilege	2616	csrsll.exe
Token: SeDebugPrivilege	2616	csrsll.exe
Token: SeDebugPrivilege	2616	csrsll.exe
Token: SeDebugPrivilege	2616	csrsll.exe
Token: SeDebugPrivilege	2616	csrsll.exe
Token: SeDebugPrivilege	2616	csrsll.exe
Token: SeDebugPrivilege	2616	csrsll.exe
Token: SeDebugPrivilege	2616	csrsll.exe
Token: SeDebugPrivilege	2616	csrsll.exe
Token: SeDebugPrivilege	2616	csrsll.exe
Token: SeDebugPrivilege	2616	csrsll.exe
Token: SeDebugPrivilege	2616	csrsll.exe
Token: SeDebugPrivilege	2616	csrsll.exe
Token: SeDebugPrivilege	2616	csrsll.exe
Token: SeDebugPrivilege	2616	csrsll.exe
Token: SeDebugPrivilege	2616	csrsll.exe
Token: SeDebugPrivilege	2616	csrsll.exe
Token: SeDebugPrivilege	2616	csrsll.exe
Token: SeDebugPrivilege	2616	csrsll.exe
Token: SeDebugPrivilege	2616	csrsll.exe
Token: SeDebugPrivilege	2616	csrsll.exe
Token: SeDebugPrivilege	2616	csrsll.exe
Token: SeDebugPrivilege	2616	csrsll.exe
Token: SeDebugPrivilege	2616	csrsll.exe
Token: SeDebugPrivilege	2616	csrsll.exe
Token: SeDebugPrivilege	2616	csrsll.exe
Token: SeDebugPrivilege	2616	csrsll.exe
Token: SeDebugPrivilege	2616	csrsll.exe
Token: SeDebugPrivilege	2616	csrsll.exe
Token: SeDebugPrivilege	2616	csrsll.exe
Token: SeDebugPrivilege	2616	csrsll.exe
Token: SeDebugPrivilege	2616	csrsll.exe
Token: SeDebugPrivilege	2616	csrsll.exe
Token: SeDebugPrivilege	2616	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2724	f8748b6c94d99136e695f0cdb2c4e2e8f7c632edef4a129f3166bf018354a264.exe
2136	f8748b6c94d99136e695f0cdb2c4e2e8f7c632edef4a129f3166bf018354a264.exe
552	csrsll.exe
2616	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2724 wrote to memory of 2136	2724	f8748b6c94d99136e695f0cdb2c4e2e8f7c632edef4a129f3166bf018354a264.exe	82
PID 2724 wrote to memory of 2136	2724	f8748b6c94d99136e695f0cdb2c4e2e8f7c632edef4a129f3166bf018354a264.exe	82
PID 2724 wrote to memory of 2136	2724	f8748b6c94d99136e695f0cdb2c4e2e8f7c632edef4a129f3166bf018354a264.exe	82
PID 2724 wrote to memory of 2136	2724	f8748b6c94d99136e695f0cdb2c4e2e8f7c632edef4a129f3166bf018354a264.exe	82
PID 2724 wrote to memory of 2136	2724	f8748b6c94d99136e695f0cdb2c4e2e8f7c632edef4a129f3166bf018354a264.exe	82
PID 2724 wrote to memory of 2136	2724	f8748b6c94d99136e695f0cdb2c4e2e8f7c632edef4a129f3166bf018354a264.exe	82
PID 2724 wrote to memory of 2136	2724	f8748b6c94d99136e695f0cdb2c4e2e8f7c632edef4a129f3166bf018354a264.exe	82
PID 2724 wrote to memory of 2136	2724	f8748b6c94d99136e695f0cdb2c4e2e8f7c632edef4a129f3166bf018354a264.exe	82
PID 2136 wrote to memory of 2640	2136	f8748b6c94d99136e695f0cdb2c4e2e8f7c632edef4a129f3166bf018354a264.exe	85
PID 2136 wrote to memory of 2640	2136	f8748b6c94d99136e695f0cdb2c4e2e8f7c632edef4a129f3166bf018354a264.exe	85
PID 2136 wrote to memory of 2640	2136	f8748b6c94d99136e695f0cdb2c4e2e8f7c632edef4a129f3166bf018354a264.exe	85
PID 2640 wrote to memory of 388	2640	cmd.exe	88
PID 2640 wrote to memory of 388	2640	cmd.exe	88
PID 2640 wrote to memory of 388	2640	cmd.exe	88
PID 2136 wrote to memory of 552	2136	f8748b6c94d99136e695f0cdb2c4e2e8f7c632edef4a129f3166bf018354a264.exe	89
PID 2136 wrote to memory of 552	2136	f8748b6c94d99136e695f0cdb2c4e2e8f7c632edef4a129f3166bf018354a264.exe	89
PID 2136 wrote to memory of 552	2136	f8748b6c94d99136e695f0cdb2c4e2e8f7c632edef4a129f3166bf018354a264.exe	89
PID 552 wrote to memory of 2616	552	csrsll.exe	95
PID 552 wrote to memory of 2616	552	csrsll.exe	95
PID 552 wrote to memory of 2616	552	csrsll.exe	95
PID 552 wrote to memory of 2616	552	csrsll.exe	95
PID 552 wrote to memory of 2616	552	csrsll.exe	95
PID 552 wrote to memory of 2616	552	csrsll.exe	95
PID 552 wrote to memory of 2616	552	csrsll.exe	95
PID 552 wrote to memory of 2616	552	csrsll.exe	95
PID 552 wrote to memory of 4644	552	csrsll.exe	96
PID 552 wrote to memory of 4644	552	csrsll.exe	96
PID 552 wrote to memory of 4644	552	csrsll.exe	96
PID 552 wrote to memory of 4644	552	csrsll.exe	96
PID 552 wrote to memory of 4644	552	csrsll.exe	96
PID 552 wrote to memory of 4644	552	csrsll.exe	96
PID 552 wrote to memory of 4644	552	csrsll.exe	96
PID 552 wrote to memory of 4644	552	csrsll.exe	96

C:\Users\Admin\AppData\Local\Temp\f8748b6c94d99136e695f0cdb2c4e2e8f7c632edef4a129f3166bf018354a264.exe
"C:\Users\Admin\AppData\Local\Temp\f8748b6c94d99136e695f0cdb2c4e2e8f7c632edef4a129f3166bf018354a264.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2724
- C:\Users\Admin\AppData\Local\Temp\f8748b6c94d99136e695f0cdb2c4e2e8f7c632edef4a129f3166bf018354a264.exe
  "C:\Users\Admin\AppData\Local\Temp\f8748b6c94d99136e695f0cdb2c4e2e8f7c632edef4a129f3166bf018354a264.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2136
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\NDQMK.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2640
  - - 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:388
- - 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:552
  - - 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:2616
  - - 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:4644

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\NDQMK.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
cf06b01884cc385a5052575d07145816

SHA1
52af8d0bfa381dffedc4bfd9c2755ba9bb12f19c

SHA256
f8748b6c94d99136e695f0cdb2c4e2e8f7c632edef4a129f3166bf018354a264

SHA512
48a600a2c16a5ba4d3e01d5f44758db8e6b0d1393eae2360f5a2a5eb042e1ad0c60539639f7a2bb64f87157894cb91f8e3c605a1bc6030cdbb28e3a8dc2c030a

Download Submit
memory/552-56-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/552-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/552-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2136-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2136-14-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2136-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2136-10-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2136-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2616-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2724-3-0x0000000002A20000-0x0000000002A22000-memory.dmp

Filesize
8KB

Download
memory/2724-13-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2724-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2724-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2724-6-0x0000000002A50000-0x0000000002A52000-memory.dmp

Filesize
8KB

Download
memory/2724-4-0x0000000002A30000-0x0000000002A32000-memory.dmp

Filesize
8KB

Download
memory/4644-47-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4644-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4644-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4644-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4644-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4644-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads