modiloader | f3d02304aefde21a2965e8664532e894bcc11237c5efec6bf488eb897d16d7f5

Analysis

max time kernel
120s
max time network
116s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
10-01-2025 23:04

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General

Target

f3d02304aefde21a2965e8664532e894bcc11237c5efec6bf488eb897d16d7f5.exe
Size

94KB
MD5

f4b40c66306d5b2797320f886a129942
SHA1

1d08374302dbbbb1f87e128a040d272b15e0f254
SHA256

f3d02304aefde21a2965e8664532e894bcc11237c5efec6bf488eb897d16d7f5
SHA512

ebd8370bb997c6e3b92fa0b0afd6265652b791e9d998d15cb2376f4a7c0616f9401bf16a872a34f8304b8326c382c906ecf186cae1686ac6b9ec709cd170dfd7
SSDEEP

1536:/pdyL9GjGiwA1z0PmVggNJKbFD2BBMx1RiwmPJr3raDk5BRf13KH9m2POE/v:/pdyLALwACPmV3NYaYLiwIt3raA5BRfi

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/1180-50-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1180-51-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1180-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1180-60-0x0000000000400000-0x0000000000414000-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	f3d02304aefde21a2965e8664532e894bcc11237c5efec6bf488eb897d16d7f5.exe

Executes dropped EXE 3 IoCs

pid	Process
1680	csrsll.exe
1868	csrsll.exe
1180	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 4012 set thread context of 1876	4012	f3d02304aefde21a2965e8664532e894bcc11237c5efec6bf488eb897d16d7f5.exe	82
PID 1680 set thread context of 1868	1680	csrsll.exe	88
PID 1680 set thread context of 1180	1680	csrsll.exe	89

UPX packed file 18 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4012-0-0x0000000000400000-0x0000000000456000-memory.dmp	upx
behavioral2/memory/1876-5-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1876-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4012-12-0x0000000000400000-0x0000000000456000-memory.dmp	upx
behavioral2/memory/1876-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0009000000023c02-27.dat	upx
behavioral2/memory/1680-37-0x0000000000400000-0x0000000000456000-memory.dmp	upx
behavioral2/memory/1680-38-0x0000000000400000-0x0000000000456000-memory.dmp	upx
behavioral2/memory/1180-42-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1180-48-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1876-47-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1180-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1180-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1180-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1680-54-0x0000000000400000-0x0000000000456000-memory.dmp	upx
behavioral2/memory/1876-58-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1868-59-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1180-60-0x0000000000400000-0x0000000000414000-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	f3d02304aefde21a2965e8664532e894bcc11237c5efec6bf488eb897d16d7f5.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f3d02304aefde21a2965e8664532e894bcc11237c5efec6bf488eb897d16d7f5.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

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1868	csrsll.exe
Token: SeDebugPrivilege	1868	csrsll.exe
Token: SeDebugPrivilege	1868	csrsll.exe
Token: SeDebugPrivilege	1868	csrsll.exe
Token: SeDebugPrivilege	1868	csrsll.exe
Token: SeDebugPrivilege	1868	csrsll.exe
Token: SeDebugPrivilege	1868	csrsll.exe
Token: SeDebugPrivilege	1868	csrsll.exe
Token: SeDebugPrivilege	1868	csrsll.exe
Token: SeDebugPrivilege	1868	csrsll.exe
Token: SeDebugPrivilege	1868	csrsll.exe
Token: SeDebugPrivilege	1868	csrsll.exe
Token: SeDebugPrivilege	1868	csrsll.exe
Token: SeDebugPrivilege	1868	csrsll.exe
Token: SeDebugPrivilege	1868	csrsll.exe
Token: SeDebugPrivilege	1868	csrsll.exe
Token: SeDebugPrivilege	1868	csrsll.exe
Token: SeDebugPrivilege	1868	csrsll.exe
Token: SeDebugPrivilege	1868	csrsll.exe
Token: SeDebugPrivilege	1868	csrsll.exe
Token: SeDebugPrivilege	1868	csrsll.exe
Token: SeDebugPrivilege	1868	csrsll.exe
Token: SeDebugPrivilege	1868	csrsll.exe
Token: SeDebugPrivilege	1868	csrsll.exe
Token: SeDebugPrivilege	1868	csrsll.exe
Token: SeDebugPrivilege	1868	csrsll.exe
Token: SeDebugPrivilege	1868	csrsll.exe
Token: SeDebugPrivilege	1868	csrsll.exe
Token: SeDebugPrivilege	1868	csrsll.exe
Token: SeDebugPrivilege	1868	csrsll.exe
Token: SeDebugPrivilege	1868	csrsll.exe
Token: SeDebugPrivilege	1868	csrsll.exe
Token: SeDebugPrivilege	1868	csrsll.exe
Token: SeDebugPrivilege	1868	csrsll.exe
Token: SeDebugPrivilege	1868	csrsll.exe
Token: SeDebugPrivilege	1868	csrsll.exe
Token: SeDebugPrivilege	1868	csrsll.exe
Token: SeDebugPrivilege	1868	csrsll.exe
Token: SeDebugPrivilege	1868	csrsll.exe
Token: SeDebugPrivilege	1868	csrsll.exe
Token: SeDebugPrivilege	1868	csrsll.exe
Token: SeDebugPrivilege	1868	csrsll.exe
Token: SeDebugPrivilege	1868	csrsll.exe
Token: SeDebugPrivilege	1868	csrsll.exe
Token: SeDebugPrivilege	1868	csrsll.exe
Token: SeDebugPrivilege	1868	csrsll.exe
Token: SeDebugPrivilege	1868	csrsll.exe
Token: SeDebugPrivilege	1868	csrsll.exe
Token: SeDebugPrivilege	1868	csrsll.exe
Token: SeDebugPrivilege	1868	csrsll.exe
Token: SeDebugPrivilege	1868	csrsll.exe
Token: SeDebugPrivilege	1868	csrsll.exe
Token: SeDebugPrivilege	1868	csrsll.exe
Token: SeDebugPrivilege	1868	csrsll.exe
Token: SeDebugPrivilege	1868	csrsll.exe
Token: SeDebugPrivilege	1868	csrsll.exe
Token: SeDebugPrivilege	1868	csrsll.exe
Token: SeDebugPrivilege	1868	csrsll.exe
Token: SeDebugPrivilege	1868	csrsll.exe
Token: SeDebugPrivilege	1868	csrsll.exe
Token: SeDebugPrivilege	1868	csrsll.exe
Token: SeDebugPrivilege	1868	csrsll.exe
Token: SeDebugPrivilege	1868	csrsll.exe
Token: SeDebugPrivilege	1868	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4012	f3d02304aefde21a2965e8664532e894bcc11237c5efec6bf488eb897d16d7f5.exe
1876	f3d02304aefde21a2965e8664532e894bcc11237c5efec6bf488eb897d16d7f5.exe
1680	csrsll.exe
1868	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4012 wrote to memory of 1876	4012	f3d02304aefde21a2965e8664532e894bcc11237c5efec6bf488eb897d16d7f5.exe	82
PID 4012 wrote to memory of 1876	4012	f3d02304aefde21a2965e8664532e894bcc11237c5efec6bf488eb897d16d7f5.exe	82
PID 4012 wrote to memory of 1876	4012	f3d02304aefde21a2965e8664532e894bcc11237c5efec6bf488eb897d16d7f5.exe	82
PID 4012 wrote to memory of 1876	4012	f3d02304aefde21a2965e8664532e894bcc11237c5efec6bf488eb897d16d7f5.exe	82
PID 4012 wrote to memory of 1876	4012	f3d02304aefde21a2965e8664532e894bcc11237c5efec6bf488eb897d16d7f5.exe	82
PID 4012 wrote to memory of 1876	4012	f3d02304aefde21a2965e8664532e894bcc11237c5efec6bf488eb897d16d7f5.exe	82
PID 4012 wrote to memory of 1876	4012	f3d02304aefde21a2965e8664532e894bcc11237c5efec6bf488eb897d16d7f5.exe	82
PID 4012 wrote to memory of 1876	4012	f3d02304aefde21a2965e8664532e894bcc11237c5efec6bf488eb897d16d7f5.exe	82
PID 1876 wrote to memory of 2816	1876	f3d02304aefde21a2965e8664532e894bcc11237c5efec6bf488eb897d16d7f5.exe	83
PID 1876 wrote to memory of 2816	1876	f3d02304aefde21a2965e8664532e894bcc11237c5efec6bf488eb897d16d7f5.exe	83
PID 1876 wrote to memory of 2816	1876	f3d02304aefde21a2965e8664532e894bcc11237c5efec6bf488eb897d16d7f5.exe	83
PID 2816 wrote to memory of 2420	2816	cmd.exe	86
PID 2816 wrote to memory of 2420	2816	cmd.exe	86
PID 2816 wrote to memory of 2420	2816	cmd.exe	86
PID 1876 wrote to memory of 1680	1876	f3d02304aefde21a2965e8664532e894bcc11237c5efec6bf488eb897d16d7f5.exe	87
PID 1876 wrote to memory of 1680	1876	f3d02304aefde21a2965e8664532e894bcc11237c5efec6bf488eb897d16d7f5.exe	87
PID 1876 wrote to memory of 1680	1876	f3d02304aefde21a2965e8664532e894bcc11237c5efec6bf488eb897d16d7f5.exe	87
PID 1680 wrote to memory of 1868	1680	csrsll.exe	88
PID 1680 wrote to memory of 1868	1680	csrsll.exe	88
PID 1680 wrote to memory of 1868	1680	csrsll.exe	88
PID 1680 wrote to memory of 1868	1680	csrsll.exe	88
PID 1680 wrote to memory of 1868	1680	csrsll.exe	88
PID 1680 wrote to memory of 1868	1680	csrsll.exe	88
PID 1680 wrote to memory of 1868	1680	csrsll.exe	88
PID 1680 wrote to memory of 1868	1680	csrsll.exe	88
PID 1680 wrote to memory of 1180	1680	csrsll.exe	89
PID 1680 wrote to memory of 1180	1680	csrsll.exe	89
PID 1680 wrote to memory of 1180	1680	csrsll.exe	89
PID 1680 wrote to memory of 1180	1680	csrsll.exe	89
PID 1680 wrote to memory of 1180	1680	csrsll.exe	89
PID 1680 wrote to memory of 1180	1680	csrsll.exe	89
PID 1680 wrote to memory of 1180	1680	csrsll.exe	89
PID 1680 wrote to memory of 1180	1680	csrsll.exe	89

C:\Users\Admin\AppData\Local\Temp\f3d02304aefde21a2965e8664532e894bcc11237c5efec6bf488eb897d16d7f5.exe
"C:\Users\Admin\AppData\Local\Temp\f3d02304aefde21a2965e8664532e894bcc11237c5efec6bf488eb897d16d7f5.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4012
- C:\Users\Admin\AppData\Local\Temp\f3d02304aefde21a2965e8664532e894bcc11237c5efec6bf488eb897d16d7f5.exe
  "C:\Users\Admin\AppData\Local\Temp\f3d02304aefde21a2965e8664532e894bcc11237c5efec6bf488eb897d16d7f5.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1876
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\NBEPR.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2816
  - - 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:2420
- - 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:1680
  - - 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:1868
  - - 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:1180

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\NBEPR.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
94KB

MD5
8f8f2504379f77b6f25f25fe03b14ed3

SHA1
38e2e4a9bb6760e75c59f06588dea78929dcdf4d

SHA256
d382fc84a0c7baa0e10fe57600019684265431ca1535c6596e6eb9abeb2bdcb5

SHA512
e3c17517ffa29676f997ae83672781c1f4de5ddc7d3b072852306dcfec0cdbb6efcbffd7ffb9625abe0c8d8bbb652c0a489774e4c7b01fdeec787106e02ba29a

Download Submit
memory/1180-60-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1180-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1180-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1180-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1180-48-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1180-42-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1680-38-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/1680-54-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/1680-37-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/1868-59-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1876-58-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1876-47-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1876-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1876-5-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1876-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1876-56-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/4012-4-0x0000000002A80000-0x0000000002A81000-memory.dmp

Filesize
4KB

Download
memory/4012-12-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/4012-0-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/4012-3-0x0000000002A60000-0x0000000002A61000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads