modiloader | bde82d7465e5f6739a9054391636563a2bb5942d6fc30bcf16e783c3c7bb16b1

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 07:10

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General

Target

bde82d7465e5f6739a9054391636563a2bb5942d6fc30bcf16e783c3c7bb16b1N.exe
Size

90KB
MD5

e42f85a493f90a64cb0506aaa9b3f830
SHA1

a25729cafa9acf09a0cd4dc900743f4136dcd29a
SHA256

bde82d7465e5f6739a9054391636563a2bb5942d6fc30bcf16e783c3c7bb16b1
SHA512

01d3f36914ebe16ef5355c46692b39d57ce5b14c7775ed0f61f03b95344e2d0817e657f523215a88e2a7263dbe13f2f23b18ce7de9a8e8560ec1e8ae831118ee
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/4516-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4516-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4516-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4516-63-0x0000000000400000-0x0000000000414000-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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	bde82d7465e5f6739a9054391636563a2bb5942d6fc30bcf16e783c3c7bb16b1N.exe

Executes dropped EXE 3 IoCs

pid	Process
3400	csrsll.exe
4160	csrsll.exe
4516	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-1-5-21-493223053-2004649691-1575712786-1000\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 804 set thread context of 2848	804	bde82d7465e5f6739a9054391636563a2bb5942d6fc30bcf16e783c3c7bb16b1N.exe	83
PID 3400 set thread context of 4160	3400	csrsll.exe	98
PID 3400 set thread context of 4516	3400	csrsll.exe	99

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/memory/804-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/804-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2848-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2848-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2848-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/804-14-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x000b000000023b9b-29.dat	upx
behavioral2/memory/3400-36-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2848-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3400-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3400-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4516-46-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4516-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4516-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4516-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4516-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3400-59-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2848-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4160-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4516-63-0x0000000000400000-0x0000000000414000-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	bde82d7465e5f6739a9054391636563a2bb5942d6fc30bcf16e783c3c7bb16b1N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bde82d7465e5f6739a9054391636563a2bb5942d6fc30bcf16e783c3c7bb16b1N.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	4160	csrsll.exe
Token: SeDebugPrivilege	4160	csrsll.exe
Token: SeDebugPrivilege	4160	csrsll.exe
Token: SeDebugPrivilege	4160	csrsll.exe
Token: SeDebugPrivilege	4160	csrsll.exe
Token: SeDebugPrivilege	4160	csrsll.exe
Token: SeDebugPrivilege	4160	csrsll.exe
Token: SeDebugPrivilege	4160	csrsll.exe
Token: SeDebugPrivilege	4160	csrsll.exe
Token: SeDebugPrivilege	4160	csrsll.exe
Token: SeDebugPrivilege	4160	csrsll.exe
Token: SeDebugPrivilege	4160	csrsll.exe
Token: SeDebugPrivilege	4160	csrsll.exe
Token: SeDebugPrivilege	4160	csrsll.exe
Token: SeDebugPrivilege	4160	csrsll.exe
Token: SeDebugPrivilege	4160	csrsll.exe
Token: SeDebugPrivilege	4160	csrsll.exe
Token: SeDebugPrivilege	4160	csrsll.exe
Token: SeDebugPrivilege	4160	csrsll.exe
Token: SeDebugPrivilege	4160	csrsll.exe
Token: SeDebugPrivilege	4160	csrsll.exe
Token: SeDebugPrivilege	4160	csrsll.exe
Token: SeDebugPrivilege	4160	csrsll.exe
Token: SeDebugPrivilege	4160	csrsll.exe
Token: SeDebugPrivilege	4160	csrsll.exe
Token: SeDebugPrivilege	4160	csrsll.exe
Token: SeDebugPrivilege	4160	csrsll.exe
Token: SeDebugPrivilege	4160	csrsll.exe
Token: SeDebugPrivilege	4160	csrsll.exe
Token: SeDebugPrivilege	4160	csrsll.exe
Token: SeDebugPrivilege	4160	csrsll.exe
Token: SeDebugPrivilege	4160	csrsll.exe
Token: SeDebugPrivilege	4160	csrsll.exe
Token: SeDebugPrivilege	4160	csrsll.exe
Token: SeDebugPrivilege	4160	csrsll.exe
Token: SeDebugPrivilege	4160	csrsll.exe
Token: SeDebugPrivilege	4160	csrsll.exe
Token: SeDebugPrivilege	4160	csrsll.exe
Token: SeDebugPrivilege	4160	csrsll.exe
Token: SeDebugPrivilege	4160	csrsll.exe
Token: SeDebugPrivilege	4160	csrsll.exe
Token: SeDebugPrivilege	4160	csrsll.exe
Token: SeDebugPrivilege	4160	csrsll.exe
Token: SeDebugPrivilege	4160	csrsll.exe
Token: SeDebugPrivilege	4160	csrsll.exe
Token: SeDebugPrivilege	4160	csrsll.exe
Token: SeDebugPrivilege	4160	csrsll.exe
Token: SeDebugPrivilege	4160	csrsll.exe
Token: SeDebugPrivilege	4160	csrsll.exe
Token: SeDebugPrivilege	4160	csrsll.exe
Token: SeDebugPrivilege	4160	csrsll.exe
Token: SeDebugPrivilege	4160	csrsll.exe
Token: SeDebugPrivilege	4160	csrsll.exe
Token: SeDebugPrivilege	4160	csrsll.exe
Token: SeDebugPrivilege	4160	csrsll.exe
Token: SeDebugPrivilege	4160	csrsll.exe
Token: SeDebugPrivilege	4160	csrsll.exe
Token: SeDebugPrivilege	4160	csrsll.exe
Token: SeDebugPrivilege	4160	csrsll.exe
Token: SeDebugPrivilege	4160	csrsll.exe
Token: SeDebugPrivilege	4160	csrsll.exe
Token: SeDebugPrivilege	4160	csrsll.exe
Token: SeDebugPrivilege	4160	csrsll.exe
Token: SeDebugPrivilege	4160	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
804	bde82d7465e5f6739a9054391636563a2bb5942d6fc30bcf16e783c3c7bb16b1N.exe
2848	bde82d7465e5f6739a9054391636563a2bb5942d6fc30bcf16e783c3c7bb16b1N.exe
3400	csrsll.exe
4160	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 804 wrote to memory of 2848	804	bde82d7465e5f6739a9054391636563a2bb5942d6fc30bcf16e783c3c7bb16b1N.exe	83
PID 804 wrote to memory of 2848	804	bde82d7465e5f6739a9054391636563a2bb5942d6fc30bcf16e783c3c7bb16b1N.exe	83
PID 804 wrote to memory of 2848	804	bde82d7465e5f6739a9054391636563a2bb5942d6fc30bcf16e783c3c7bb16b1N.exe	83
PID 804 wrote to memory of 2848	804	bde82d7465e5f6739a9054391636563a2bb5942d6fc30bcf16e783c3c7bb16b1N.exe	83
PID 804 wrote to memory of 2848	804	bde82d7465e5f6739a9054391636563a2bb5942d6fc30bcf16e783c3c7bb16b1N.exe	83
PID 804 wrote to memory of 2848	804	bde82d7465e5f6739a9054391636563a2bb5942d6fc30bcf16e783c3c7bb16b1N.exe	83
PID 804 wrote to memory of 2848	804	bde82d7465e5f6739a9054391636563a2bb5942d6fc30bcf16e783c3c7bb16b1N.exe	83
PID 804 wrote to memory of 2848	804	bde82d7465e5f6739a9054391636563a2bb5942d6fc30bcf16e783c3c7bb16b1N.exe	83
PID 2848 wrote to memory of 1820	2848	bde82d7465e5f6739a9054391636563a2bb5942d6fc30bcf16e783c3c7bb16b1N.exe	84
PID 2848 wrote to memory of 1820	2848	bde82d7465e5f6739a9054391636563a2bb5942d6fc30bcf16e783c3c7bb16b1N.exe	84
PID 2848 wrote to memory of 1820	2848	bde82d7465e5f6739a9054391636563a2bb5942d6fc30bcf16e783c3c7bb16b1N.exe	84
PID 1820 wrote to memory of 4272	1820	cmd.exe	88
PID 1820 wrote to memory of 4272	1820	cmd.exe	88
PID 1820 wrote to memory of 4272	1820	cmd.exe	88
PID 2848 wrote to memory of 3400	2848	bde82d7465e5f6739a9054391636563a2bb5942d6fc30bcf16e783c3c7bb16b1N.exe	89
PID 2848 wrote to memory of 3400	2848	bde82d7465e5f6739a9054391636563a2bb5942d6fc30bcf16e783c3c7bb16b1N.exe	89
PID 2848 wrote to memory of 3400	2848	bde82d7465e5f6739a9054391636563a2bb5942d6fc30bcf16e783c3c7bb16b1N.exe	89
PID 3400 wrote to memory of 4160	3400	csrsll.exe	98
PID 3400 wrote to memory of 4160	3400	csrsll.exe	98
PID 3400 wrote to memory of 4160	3400	csrsll.exe	98
PID 3400 wrote to memory of 4160	3400	csrsll.exe	98
PID 3400 wrote to memory of 4160	3400	csrsll.exe	98
PID 3400 wrote to memory of 4160	3400	csrsll.exe	98
PID 3400 wrote to memory of 4160	3400	csrsll.exe	98
PID 3400 wrote to memory of 4160	3400	csrsll.exe	98
PID 3400 wrote to memory of 4516	3400	csrsll.exe	99
PID 3400 wrote to memory of 4516	3400	csrsll.exe	99
PID 3400 wrote to memory of 4516	3400	csrsll.exe	99
PID 3400 wrote to memory of 4516	3400	csrsll.exe	99
PID 3400 wrote to memory of 4516	3400	csrsll.exe	99
PID 3400 wrote to memory of 4516	3400	csrsll.exe	99
PID 3400 wrote to memory of 4516	3400	csrsll.exe	99
PID 3400 wrote to memory of 4516	3400	csrsll.exe	99

C:\Users\Admin\AppData\Local\Temp\bde82d7465e5f6739a9054391636563a2bb5942d6fc30bcf16e783c3c7bb16b1N.exe
"C:\Users\Admin\AppData\Local\Temp\bde82d7465e5f6739a9054391636563a2bb5942d6fc30bcf16e783c3c7bb16b1N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:804
- C:\Users\Admin\AppData\Local\Temp\bde82d7465e5f6739a9054391636563a2bb5942d6fc30bcf16e783c3c7bb16b1N.exe
  "C:\Users\Admin\AppData\Local\Temp\bde82d7465e5f6739a9054391636563a2bb5942d6fc30bcf16e783c3c7bb16b1N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2848
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\FLDTK.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1820
  - - 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:4272
- - 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:3400
  - - 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:4160
  - - 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:4516

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

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Downloads

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

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
4458faab6b22578d70e8c35a0df5edf2

SHA1
288ad16db1035c692b4022b9344d7ae1cec71d57

SHA256
3b838dd4510841803b7bb22c4c18e7ca810e73cb24aa9a6e60468204c6ec3728

SHA512
97e270ffb7f5cdfdfb95f06cdb7948599fce3387169c96fc78609825b87d6d80bbab853685602ba8bf2e9e45f0c43a0ff65be127be89f843331b7743355ddd18

Download Submit
memory/804-14-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/804-3-0x0000000002B60000-0x0000000002B62000-memory.dmp

Filesize
8KB

Download
memory/804-4-0x0000000002B70000-0x0000000002B72000-memory.dmp

Filesize
8KB

Download
memory/804-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/804-6-0x0000000002B90000-0x0000000002B92000-memory.dmp

Filesize
8KB

Download
memory/804-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2848-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2848-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2848-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2848-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2848-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3400-59-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3400-36-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3400-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3400-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4160-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4516-46-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4516-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4516-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4516-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4516-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4516-63-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads