modiloader | d25816676d687c9f819f1f31c5ebfb4ec95d39379bf4cb78921b3c25709568d0

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
04-01-2025 12:09

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General

Target

d25816676d687c9f819f1f31c5ebfb4ec95d39379bf4cb78921b3c25709568d0N.exe
Size

90KB
MD5

5fb56966f4bc24fb9981cfc774d25a00
SHA1

de939336deb684c813292a0a2ccccce6afbdf5b2
SHA256

d25816676d687c9f819f1f31c5ebfb4ec95d39379bf4cb78921b3c25709568d0
SHA512

5711d2f94ae8e0475ab3ad482173c9a40508853252946872b1da26b8d2b02c7bac432a07d992e14d5f45c5ac9b28aac7f0415a54671e7fd3f49f9c09db0a9e7c
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDK:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3Y

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/1948-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1948-59-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1948-58-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1948-64-0x0000000000400000-0x0000000000414000-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	d25816676d687c9f819f1f31c5ebfb4ec95d39379bf4cb78921b3c25709568d0N.exe

Executes dropped EXE 3 IoCs

pid	Process
5020	csrsll.exe
5096	csrsll.exe
1948	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 3184 set thread context of 4268	3184	d25816676d687c9f819f1f31c5ebfb4ec95d39379bf4cb78921b3c25709568d0N.exe	86
PID 5020 set thread context of 5096	5020	csrsll.exe	95
PID 5020 set thread context of 1948	5020	csrsll.exe	96

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3184-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3184-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4268-8-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4268-10-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3184-13-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4268-14-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000b000000023b9f-30.dat	upx
behavioral2/memory/5020-37-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4268-41-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/5020-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/5020-43-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1948-47-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1948-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/5020-57-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1948-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1948-59-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1948-58-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4268-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/5096-63-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1948-64-0x0000000000400000-0x0000000000414000-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	d25816676d687c9f819f1f31c5ebfb4ec95d39379bf4cb78921b3c25709568d0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d25816676d687c9f819f1f31c5ebfb4ec95d39379bf4cb78921b3c25709568d0N.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	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
3184	d25816676d687c9f819f1f31c5ebfb4ec95d39379bf4cb78921b3c25709568d0N.exe
4268	d25816676d687c9f819f1f31c5ebfb4ec95d39379bf4cb78921b3c25709568d0N.exe
5020	csrsll.exe
5096	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 3184 wrote to memory of 4268	3184	d25816676d687c9f819f1f31c5ebfb4ec95d39379bf4cb78921b3c25709568d0N.exe	86
PID 3184 wrote to memory of 4268	3184	d25816676d687c9f819f1f31c5ebfb4ec95d39379bf4cb78921b3c25709568d0N.exe	86
PID 3184 wrote to memory of 4268	3184	d25816676d687c9f819f1f31c5ebfb4ec95d39379bf4cb78921b3c25709568d0N.exe	86
PID 3184 wrote to memory of 4268	3184	d25816676d687c9f819f1f31c5ebfb4ec95d39379bf4cb78921b3c25709568d0N.exe	86
PID 3184 wrote to memory of 4268	3184	d25816676d687c9f819f1f31c5ebfb4ec95d39379bf4cb78921b3c25709568d0N.exe	86
PID 3184 wrote to memory of 4268	3184	d25816676d687c9f819f1f31c5ebfb4ec95d39379bf4cb78921b3c25709568d0N.exe	86
PID 3184 wrote to memory of 4268	3184	d25816676d687c9f819f1f31c5ebfb4ec95d39379bf4cb78921b3c25709568d0N.exe	86
PID 3184 wrote to memory of 4268	3184	d25816676d687c9f819f1f31c5ebfb4ec95d39379bf4cb78921b3c25709568d0N.exe	86
PID 4268 wrote to memory of 2044	4268	d25816676d687c9f819f1f31c5ebfb4ec95d39379bf4cb78921b3c25709568d0N.exe	87
PID 4268 wrote to memory of 2044	4268	d25816676d687c9f819f1f31c5ebfb4ec95d39379bf4cb78921b3c25709568d0N.exe	87
PID 4268 wrote to memory of 2044	4268	d25816676d687c9f819f1f31c5ebfb4ec95d39379bf4cb78921b3c25709568d0N.exe	87
PID 2044 wrote to memory of 4940	2044	cmd.exe	90
PID 2044 wrote to memory of 4940	2044	cmd.exe	90
PID 2044 wrote to memory of 4940	2044	cmd.exe	90
PID 4268 wrote to memory of 5020	4268	d25816676d687c9f819f1f31c5ebfb4ec95d39379bf4cb78921b3c25709568d0N.exe	91
PID 4268 wrote to memory of 5020	4268	d25816676d687c9f819f1f31c5ebfb4ec95d39379bf4cb78921b3c25709568d0N.exe	91
PID 4268 wrote to memory of 5020	4268	d25816676d687c9f819f1f31c5ebfb4ec95d39379bf4cb78921b3c25709568d0N.exe	91
PID 5020 wrote to memory of 5096	5020	csrsll.exe	95
PID 5020 wrote to memory of 5096	5020	csrsll.exe	95
PID 5020 wrote to memory of 5096	5020	csrsll.exe	95
PID 5020 wrote to memory of 5096	5020	csrsll.exe	95
PID 5020 wrote to memory of 5096	5020	csrsll.exe	95
PID 5020 wrote to memory of 5096	5020	csrsll.exe	95
PID 5020 wrote to memory of 5096	5020	csrsll.exe	95
PID 5020 wrote to memory of 5096	5020	csrsll.exe	95
PID 5020 wrote to memory of 1948	5020	csrsll.exe	96
PID 5020 wrote to memory of 1948	5020	csrsll.exe	96
PID 5020 wrote to memory of 1948	5020	csrsll.exe	96
PID 5020 wrote to memory of 1948	5020	csrsll.exe	96
PID 5020 wrote to memory of 1948	5020	csrsll.exe	96
PID 5020 wrote to memory of 1948	5020	csrsll.exe	96
PID 5020 wrote to memory of 1948	5020	csrsll.exe	96
PID 5020 wrote to memory of 1948	5020	csrsll.exe	96

C:\Users\Admin\AppData\Local\Temp\d25816676d687c9f819f1f31c5ebfb4ec95d39379bf4cb78921b3c25709568d0N.exe
"C:\Users\Admin\AppData\Local\Temp\d25816676d687c9f819f1f31c5ebfb4ec95d39379bf4cb78921b3c25709568d0N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3184
- C:\Users\Admin\AppData\Local\Temp\d25816676d687c9f819f1f31c5ebfb4ec95d39379bf4cb78921b3c25709568d0N.exe
  "C:\Users\Admin\AppData\Local\Temp\d25816676d687c9f819f1f31c5ebfb4ec95d39379bf4cb78921b3c25709568d0N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4268
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\VCLVT.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2044
  - - 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:4940
- - 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:5020
  - - 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:1948

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\VCLVT.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
df552115106cf122641402ffae21fe6a

SHA1
12afc425db58aa22eaae378c4e6b15f36082ee39

SHA256
2a13c58d554aec9eb5ba5cd3398a8f9503ad17ebff8cdeaf4e51eb2064273cc4

SHA512
764478774c83f7f438b69bb211559bbfcdcfa5480cb57806fe549756e7128be09006508b470f0e7ab4201c776d23e1aabe3c79f9bde5c748ff3f240ab8f1d953

Download Submit
memory/1948-59-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1948-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1948-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1948-47-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1948-58-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1948-64-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3184-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3184-13-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3184-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3184-6-0x0000000002B80000-0x0000000002B82000-memory.dmp

Filesize
8KB

Download
memory/3184-7-0x0000000002B90000-0x0000000002B92000-memory.dmp

Filesize
8KB

Download
memory/3184-4-0x0000000002B70000-0x0000000002B72000-memory.dmp

Filesize
8KB

Download
memory/3184-3-0x0000000002B60000-0x0000000002B62000-memory.dmp

Filesize
8KB

Download
memory/4268-14-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4268-10-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4268-41-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4268-8-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4268-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4268-60-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/5020-37-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/5020-57-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/5020-43-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/5020-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/5096-63-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads