modiloader | d304ef24df6c43ea77d2422bf4c84f05052813ff7c45c94d46a852acd8527b6b

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
18-12-2024 08:32

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General

Target

d304ef24df6c43ea77d2422bf4c84f05052813ff7c45c94d46a852acd8527b6bN.exe
Size

90KB
MD5

c5f62b1c216574b7ba8a84b1db371490
SHA1

768150c38a9accb65ed3631926f01e5fa725d0ac
SHA256

d304ef24df6c43ea77d2422bf4c84f05052813ff7c45c94d46a852acd8527b6b
SHA512

be271a9e5d5f43a7f51042b8e02216d6125f990fa98729cd5414a4baa7d5c0b0dde47b67b23b48e6ec475181bbed6989b21699d73ed74923761f485e30d5522a
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDa:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3I

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/3280-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3280-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3280-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3280-61-0x0000000000400000-0x0000000000414000-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	d304ef24df6c43ea77d2422bf4c84f05052813ff7c45c94d46a852acd8527b6bN.exe

Executes dropped EXE 3 IoCs

pid	Process
4960	csrsll.exe
820	csrsll.exe
3280	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 3940 set thread context of 3660	3940	d304ef24df6c43ea77d2422bf4c84f05052813ff7c45c94d46a852acd8527b6bN.exe	84
PID 4960 set thread context of 820	4960	csrsll.exe	95
PID 4960 set thread context of 3280	4960	csrsll.exe	96

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3940-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3940-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3660-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3660-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3940-11-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3660-12-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3660-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0008000000023cc6-29.dat	upx
behavioral2/memory/3660-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4960-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4960-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3280-45-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3280-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3280-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3280-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4960-57-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3280-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3660-59-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/820-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3280-61-0x0000000000400000-0x0000000000414000-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	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d304ef24df6c43ea77d2422bf4c84f05052813ff7c45c94d46a852acd8527b6bN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d304ef24df6c43ea77d2422bf4c84f05052813ff7c45c94d46a852acd8527b6bN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	820	csrsll.exe
Token: SeDebugPrivilege	820	csrsll.exe
Token: SeDebugPrivilege	820	csrsll.exe
Token: SeDebugPrivilege	820	csrsll.exe
Token: SeDebugPrivilege	820	csrsll.exe
Token: SeDebugPrivilege	820	csrsll.exe
Token: SeDebugPrivilege	820	csrsll.exe
Token: SeDebugPrivilege	820	csrsll.exe
Token: SeDebugPrivilege	820	csrsll.exe
Token: SeDebugPrivilege	820	csrsll.exe
Token: SeDebugPrivilege	820	csrsll.exe
Token: SeDebugPrivilege	820	csrsll.exe
Token: SeDebugPrivilege	820	csrsll.exe
Token: SeDebugPrivilege	820	csrsll.exe
Token: SeDebugPrivilege	820	csrsll.exe
Token: SeDebugPrivilege	820	csrsll.exe
Token: SeDebugPrivilege	820	csrsll.exe
Token: SeDebugPrivilege	820	csrsll.exe
Token: SeDebugPrivilege	820	csrsll.exe
Token: SeDebugPrivilege	820	csrsll.exe
Token: SeDebugPrivilege	820	csrsll.exe
Token: SeDebugPrivilege	820	csrsll.exe
Token: SeDebugPrivilege	820	csrsll.exe
Token: SeDebugPrivilege	820	csrsll.exe
Token: SeDebugPrivilege	820	csrsll.exe
Token: SeDebugPrivilege	820	csrsll.exe
Token: SeDebugPrivilege	820	csrsll.exe
Token: SeDebugPrivilege	820	csrsll.exe
Token: SeDebugPrivilege	820	csrsll.exe
Token: SeDebugPrivilege	820	csrsll.exe
Token: SeDebugPrivilege	820	csrsll.exe
Token: SeDebugPrivilege	820	csrsll.exe
Token: SeDebugPrivilege	820	csrsll.exe
Token: SeDebugPrivilege	820	csrsll.exe
Token: SeDebugPrivilege	820	csrsll.exe
Token: SeDebugPrivilege	820	csrsll.exe
Token: SeDebugPrivilege	820	csrsll.exe
Token: SeDebugPrivilege	820	csrsll.exe
Token: SeDebugPrivilege	820	csrsll.exe
Token: SeDebugPrivilege	820	csrsll.exe
Token: SeDebugPrivilege	820	csrsll.exe
Token: SeDebugPrivilege	820	csrsll.exe
Token: SeDebugPrivilege	820	csrsll.exe
Token: SeDebugPrivilege	820	csrsll.exe
Token: SeDebugPrivilege	820	csrsll.exe
Token: SeDebugPrivilege	820	csrsll.exe
Token: SeDebugPrivilege	820	csrsll.exe
Token: SeDebugPrivilege	820	csrsll.exe
Token: SeDebugPrivilege	820	csrsll.exe
Token: SeDebugPrivilege	820	csrsll.exe
Token: SeDebugPrivilege	820	csrsll.exe
Token: SeDebugPrivilege	820	csrsll.exe
Token: SeDebugPrivilege	820	csrsll.exe
Token: SeDebugPrivilege	820	csrsll.exe
Token: SeDebugPrivilege	820	csrsll.exe
Token: SeDebugPrivilege	820	csrsll.exe
Token: SeDebugPrivilege	820	csrsll.exe
Token: SeDebugPrivilege	820	csrsll.exe
Token: SeDebugPrivilege	820	csrsll.exe
Token: SeDebugPrivilege	820	csrsll.exe
Token: SeDebugPrivilege	820	csrsll.exe
Token: SeDebugPrivilege	820	csrsll.exe
Token: SeDebugPrivilege	820	csrsll.exe
Token: SeDebugPrivilege	820	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
3940	d304ef24df6c43ea77d2422bf4c84f05052813ff7c45c94d46a852acd8527b6bN.exe
3660	d304ef24df6c43ea77d2422bf4c84f05052813ff7c45c94d46a852acd8527b6bN.exe
4960	csrsll.exe
820	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 3940 wrote to memory of 3660	3940	d304ef24df6c43ea77d2422bf4c84f05052813ff7c45c94d46a852acd8527b6bN.exe	84
PID 3940 wrote to memory of 3660	3940	d304ef24df6c43ea77d2422bf4c84f05052813ff7c45c94d46a852acd8527b6bN.exe	84
PID 3940 wrote to memory of 3660	3940	d304ef24df6c43ea77d2422bf4c84f05052813ff7c45c94d46a852acd8527b6bN.exe	84
PID 3940 wrote to memory of 3660	3940	d304ef24df6c43ea77d2422bf4c84f05052813ff7c45c94d46a852acd8527b6bN.exe	84
PID 3940 wrote to memory of 3660	3940	d304ef24df6c43ea77d2422bf4c84f05052813ff7c45c94d46a852acd8527b6bN.exe	84
PID 3940 wrote to memory of 3660	3940	d304ef24df6c43ea77d2422bf4c84f05052813ff7c45c94d46a852acd8527b6bN.exe	84
PID 3940 wrote to memory of 3660	3940	d304ef24df6c43ea77d2422bf4c84f05052813ff7c45c94d46a852acd8527b6bN.exe	84
PID 3940 wrote to memory of 3660	3940	d304ef24df6c43ea77d2422bf4c84f05052813ff7c45c94d46a852acd8527b6bN.exe	84
PID 3660 wrote to memory of 3040	3660	d304ef24df6c43ea77d2422bf4c84f05052813ff7c45c94d46a852acd8527b6bN.exe	87
PID 3660 wrote to memory of 3040	3660	d304ef24df6c43ea77d2422bf4c84f05052813ff7c45c94d46a852acd8527b6bN.exe	87
PID 3660 wrote to memory of 3040	3660	d304ef24df6c43ea77d2422bf4c84f05052813ff7c45c94d46a852acd8527b6bN.exe	87
PID 3040 wrote to memory of 3700	3040	cmd.exe	90
PID 3040 wrote to memory of 3700	3040	cmd.exe	90
PID 3040 wrote to memory of 3700	3040	cmd.exe	90
PID 3660 wrote to memory of 4960	3660	d304ef24df6c43ea77d2422bf4c84f05052813ff7c45c94d46a852acd8527b6bN.exe	91
PID 3660 wrote to memory of 4960	3660	d304ef24df6c43ea77d2422bf4c84f05052813ff7c45c94d46a852acd8527b6bN.exe	91
PID 3660 wrote to memory of 4960	3660	d304ef24df6c43ea77d2422bf4c84f05052813ff7c45c94d46a852acd8527b6bN.exe	91
PID 4960 wrote to memory of 820	4960	csrsll.exe	95
PID 4960 wrote to memory of 820	4960	csrsll.exe	95
PID 4960 wrote to memory of 820	4960	csrsll.exe	95
PID 4960 wrote to memory of 820	4960	csrsll.exe	95
PID 4960 wrote to memory of 820	4960	csrsll.exe	95
PID 4960 wrote to memory of 820	4960	csrsll.exe	95
PID 4960 wrote to memory of 820	4960	csrsll.exe	95
PID 4960 wrote to memory of 820	4960	csrsll.exe	95
PID 4960 wrote to memory of 3280	4960	csrsll.exe	96
PID 4960 wrote to memory of 3280	4960	csrsll.exe	96
PID 4960 wrote to memory of 3280	4960	csrsll.exe	96
PID 4960 wrote to memory of 3280	4960	csrsll.exe	96
PID 4960 wrote to memory of 3280	4960	csrsll.exe	96
PID 4960 wrote to memory of 3280	4960	csrsll.exe	96
PID 4960 wrote to memory of 3280	4960	csrsll.exe	96
PID 4960 wrote to memory of 3280	4960	csrsll.exe	96

C:\Users\Admin\AppData\Local\Temp\d304ef24df6c43ea77d2422bf4c84f05052813ff7c45c94d46a852acd8527b6bN.exe
"C:\Users\Admin\AppData\Local\Temp\d304ef24df6c43ea77d2422bf4c84f05052813ff7c45c94d46a852acd8527b6bN.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3940
- C:\Users\Admin\AppData\Local\Temp\d304ef24df6c43ea77d2422bf4c84f05052813ff7c45c94d46a852acd8527b6bN.exe
  "C:\Users\Admin\AppData\Local\Temp\d304ef24df6c43ea77d2422bf4c84f05052813ff7c45c94d46a852acd8527b6bN.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3660
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\LTHSI.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3040
  - - 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:3700
- - 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:4960
  - - 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:820
  - - 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:3280

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\LTHSI.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
0bbf501d3969a214439e2ed4f3c00fee

SHA1
cf06a2cce18d41c5bb45f31f41a01b53d5fdd5ab

SHA256
da2f643ef9e6cdadf4ccfacc84a962b89f16e1031d90cbfd583c5aae320ba554

SHA512
b4eff91afc708a208bbf7aca8ebde5faebf88b1d1764c0d1bd3bf451bcf35c1eba2817685c5fa6104b0d25047092f9c3b02329d1c96a78715d58a387d6600679

Download Submit
memory/820-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3280-61-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3280-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3280-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3280-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3280-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3280-45-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3660-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3660-58-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/3660-12-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3660-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3660-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3660-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3660-59-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3940-3-0x0000000002B60000-0x0000000002B62000-memory.dmp

Filesize
8KB

Download
memory/3940-11-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3940-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3940-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3940-4-0x0000000002B70000-0x0000000002B72000-memory.dmp

Filesize
8KB

Download
memory/3940-6-0x0000000002B90000-0x0000000002B92000-memory.dmp

Filesize
8KB

Download
memory/4960-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4960-57-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4960-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads