modiloader | e4a4012129e0d076df307b8bd99a1fd8e956c284363004c754888a85f536a828

Analysis

max time kernel
119s
max time network
118s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
01-01-2025 16:07

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General

Target

e4a4012129e0d076df307b8bd99a1fd8e956c284363004c754888a85f536a828N.exe
Size

90KB
MD5

4a692f6f882205a3cbd8dae780e0f2d0
SHA1

bc082300f30554c39d73266a11aa9694d4bb0aa2
SHA256

e4a4012129e0d076df307b8bd99a1fd8e956c284363004c754888a85f536a828
SHA512

fd3b05ca4f8077e1c5e7158ed4c77616a70f05829d154bfbc7ce04496e3c391d2fb62d9c7cc0290e42e2e5fca4b4244da9245f7fc5a5846a4ce1017026b55122
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/4548-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4548-57-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4548-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4548-64-0x0000000000400000-0x0000000000414000-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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	e4a4012129e0d076df307b8bd99a1fd8e956c284363004c754888a85f536a828N.exe

Executes dropped EXE 3 IoCs

pid	Process
1380	csrsll.exe
1924	csrsll.exe
4548	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-1-5-21-3442511616-637977696-3186306149-1000\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 1096 set thread context of 2988	1096	e4a4012129e0d076df307b8bd99a1fd8e956c284363004c754888a85f536a828N.exe	83
PID 1380 set thread context of 1924	1380	csrsll.exe	94
PID 1380 set thread context of 4548	1380	csrsll.exe	95

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1096-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1096-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2988-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2988-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2988-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1096-12-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x0008000000023c9b-29.dat	upx
behavioral2/memory/1380-36-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2988-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1380-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1380-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4548-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4548-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4548-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4548-57-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4548-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1380-59-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2988-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1924-63-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4548-64-0x0000000000400000-0x0000000000414000-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	e4a4012129e0d076df307b8bd99a1fd8e956c284363004c754888a85f536a828N.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e4a4012129e0d076df307b8bd99a1fd8e956c284363004c754888a85f536a828N.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1924	csrsll.exe
Token: SeDebugPrivilege	1924	csrsll.exe
Token: SeDebugPrivilege	1924	csrsll.exe
Token: SeDebugPrivilege	1924	csrsll.exe
Token: SeDebugPrivilege	1924	csrsll.exe
Token: SeDebugPrivilege	1924	csrsll.exe
Token: SeDebugPrivilege	1924	csrsll.exe
Token: SeDebugPrivilege	1924	csrsll.exe
Token: SeDebugPrivilege	1924	csrsll.exe
Token: SeDebugPrivilege	1924	csrsll.exe
Token: SeDebugPrivilege	1924	csrsll.exe
Token: SeDebugPrivilege	1924	csrsll.exe
Token: SeDebugPrivilege	1924	csrsll.exe
Token: SeDebugPrivilege	1924	csrsll.exe
Token: SeDebugPrivilege	1924	csrsll.exe
Token: SeDebugPrivilege	1924	csrsll.exe
Token: SeDebugPrivilege	1924	csrsll.exe
Token: SeDebugPrivilege	1924	csrsll.exe
Token: SeDebugPrivilege	1924	csrsll.exe
Token: SeDebugPrivilege	1924	csrsll.exe
Token: SeDebugPrivilege	1924	csrsll.exe
Token: SeDebugPrivilege	1924	csrsll.exe
Token: SeDebugPrivilege	1924	csrsll.exe
Token: SeDebugPrivilege	1924	csrsll.exe
Token: SeDebugPrivilege	1924	csrsll.exe
Token: SeDebugPrivilege	1924	csrsll.exe
Token: SeDebugPrivilege	1924	csrsll.exe
Token: SeDebugPrivilege	1924	csrsll.exe
Token: SeDebugPrivilege	1924	csrsll.exe
Token: SeDebugPrivilege	1924	csrsll.exe
Token: SeDebugPrivilege	1924	csrsll.exe
Token: SeDebugPrivilege	1924	csrsll.exe
Token: SeDebugPrivilege	1924	csrsll.exe
Token: SeDebugPrivilege	1924	csrsll.exe
Token: SeDebugPrivilege	1924	csrsll.exe
Token: SeDebugPrivilege	1924	csrsll.exe
Token: SeDebugPrivilege	1924	csrsll.exe
Token: SeDebugPrivilege	1924	csrsll.exe
Token: SeDebugPrivilege	1924	csrsll.exe
Token: SeDebugPrivilege	1924	csrsll.exe
Token: SeDebugPrivilege	1924	csrsll.exe
Token: SeDebugPrivilege	1924	csrsll.exe
Token: SeDebugPrivilege	1924	csrsll.exe
Token: SeDebugPrivilege	1924	csrsll.exe
Token: SeDebugPrivilege	1924	csrsll.exe
Token: SeDebugPrivilege	1924	csrsll.exe
Token: SeDebugPrivilege	1924	csrsll.exe
Token: SeDebugPrivilege	1924	csrsll.exe
Token: SeDebugPrivilege	1924	csrsll.exe
Token: SeDebugPrivilege	1924	csrsll.exe
Token: SeDebugPrivilege	1924	csrsll.exe
Token: SeDebugPrivilege	1924	csrsll.exe
Token: SeDebugPrivilege	1924	csrsll.exe
Token: SeDebugPrivilege	1924	csrsll.exe
Token: SeDebugPrivilege	1924	csrsll.exe
Token: SeDebugPrivilege	1924	csrsll.exe
Token: SeDebugPrivilege	1924	csrsll.exe
Token: SeDebugPrivilege	1924	csrsll.exe
Token: SeDebugPrivilege	1924	csrsll.exe
Token: SeDebugPrivilege	1924	csrsll.exe
Token: SeDebugPrivilege	1924	csrsll.exe
Token: SeDebugPrivilege	1924	csrsll.exe
Token: SeDebugPrivilege	1924	csrsll.exe
Token: SeDebugPrivilege	1924	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1096	e4a4012129e0d076df307b8bd99a1fd8e956c284363004c754888a85f536a828N.exe
2988	e4a4012129e0d076df307b8bd99a1fd8e956c284363004c754888a85f536a828N.exe
1380	csrsll.exe
1924	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 1096 wrote to memory of 2988	1096	e4a4012129e0d076df307b8bd99a1fd8e956c284363004c754888a85f536a828N.exe	83
PID 1096 wrote to memory of 2988	1096	e4a4012129e0d076df307b8bd99a1fd8e956c284363004c754888a85f536a828N.exe	83
PID 1096 wrote to memory of 2988	1096	e4a4012129e0d076df307b8bd99a1fd8e956c284363004c754888a85f536a828N.exe	83
PID 1096 wrote to memory of 2988	1096	e4a4012129e0d076df307b8bd99a1fd8e956c284363004c754888a85f536a828N.exe	83
PID 1096 wrote to memory of 2988	1096	e4a4012129e0d076df307b8bd99a1fd8e956c284363004c754888a85f536a828N.exe	83
PID 1096 wrote to memory of 2988	1096	e4a4012129e0d076df307b8bd99a1fd8e956c284363004c754888a85f536a828N.exe	83
PID 1096 wrote to memory of 2988	1096	e4a4012129e0d076df307b8bd99a1fd8e956c284363004c754888a85f536a828N.exe	83
PID 1096 wrote to memory of 2988	1096	e4a4012129e0d076df307b8bd99a1fd8e956c284363004c754888a85f536a828N.exe	83
PID 2988 wrote to memory of 1484	2988	e4a4012129e0d076df307b8bd99a1fd8e956c284363004c754888a85f536a828N.exe	84
PID 2988 wrote to memory of 1484	2988	e4a4012129e0d076df307b8bd99a1fd8e956c284363004c754888a85f536a828N.exe	84
PID 2988 wrote to memory of 1484	2988	e4a4012129e0d076df307b8bd99a1fd8e956c284363004c754888a85f536a828N.exe	84
PID 1484 wrote to memory of 4460	1484	cmd.exe	87
PID 1484 wrote to memory of 4460	1484	cmd.exe	87
PID 1484 wrote to memory of 4460	1484	cmd.exe	87
PID 2988 wrote to memory of 1380	2988	e4a4012129e0d076df307b8bd99a1fd8e956c284363004c754888a85f536a828N.exe	88
PID 2988 wrote to memory of 1380	2988	e4a4012129e0d076df307b8bd99a1fd8e956c284363004c754888a85f536a828N.exe	88
PID 2988 wrote to memory of 1380	2988	e4a4012129e0d076df307b8bd99a1fd8e956c284363004c754888a85f536a828N.exe	88
PID 1380 wrote to memory of 1924	1380	csrsll.exe	94
PID 1380 wrote to memory of 1924	1380	csrsll.exe	94
PID 1380 wrote to memory of 1924	1380	csrsll.exe	94
PID 1380 wrote to memory of 1924	1380	csrsll.exe	94
PID 1380 wrote to memory of 1924	1380	csrsll.exe	94
PID 1380 wrote to memory of 1924	1380	csrsll.exe	94
PID 1380 wrote to memory of 1924	1380	csrsll.exe	94
PID 1380 wrote to memory of 1924	1380	csrsll.exe	94
PID 1380 wrote to memory of 4548	1380	csrsll.exe	95
PID 1380 wrote to memory of 4548	1380	csrsll.exe	95
PID 1380 wrote to memory of 4548	1380	csrsll.exe	95
PID 1380 wrote to memory of 4548	1380	csrsll.exe	95
PID 1380 wrote to memory of 4548	1380	csrsll.exe	95
PID 1380 wrote to memory of 4548	1380	csrsll.exe	95
PID 1380 wrote to memory of 4548	1380	csrsll.exe	95
PID 1380 wrote to memory of 4548	1380	csrsll.exe	95

C:\Users\Admin\AppData\Local\Temp\e4a4012129e0d076df307b8bd99a1fd8e956c284363004c754888a85f536a828N.exe
"C:\Users\Admin\AppData\Local\Temp\e4a4012129e0d076df307b8bd99a1fd8e956c284363004c754888a85f536a828N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1096
- C:\Users\Admin\AppData\Local\Temp\e4a4012129e0d076df307b8bd99a1fd8e956c284363004c754888a85f536a828N.exe
  "C:\Users\Admin\AppData\Local\Temp\e4a4012129e0d076df307b8bd99a1fd8e956c284363004c754888a85f536a828N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2988
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\BIUVQ.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1484
  - - 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:4460
- - 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:1380
  - - 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:1924
  - - 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:4548

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\BIUVQ.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
654f82a1d349aa861b7e4d7f6ecb0a32

SHA1
dc0dc302259d26e968c36a8a5fb576f452df576a

SHA256
3ae3e23912d30fa3a57328e790453c2ba1a065d06894fcf3a20f3076ac1cee60

SHA512
54e034495708bd69a70f4fd47c0cc3052bfeb246f3f9d0f2577c2b1f88f80a2266ad47335c7a1f52028cfd802f031e06a17f73eea881267fe0e31b1bfe92aa18

Download Submit
memory/1096-6-0x0000000002B80000-0x0000000002B82000-memory.dmp

Filesize
8KB

Download
memory/1096-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1096-12-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1096-4-0x0000000002B60000-0x0000000002B62000-memory.dmp

Filesize
8KB

Download
memory/1096-3-0x0000000002300000-0x0000000002302000-memory.dmp

Filesize
8KB

Download
memory/1096-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1380-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1380-59-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1380-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1380-36-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1924-63-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2988-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2988-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2988-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2988-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2988-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4548-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4548-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4548-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4548-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4548-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4548-64-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads