modiloader | 4dd343e7b1f4306c3cee31f5279ec2d9c26cc1fd4fed29e1223b69074ed04ae7

Analysis

max time kernel
118s
max time network
120s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
19-12-2024 01:01

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General

Target

4dd343e7b1f4306c3cee31f5279ec2d9c26cc1fd4fed29e1223b69074ed04ae7N.exe
Size

326KB
MD5

6867f6f8353d78ae5efe3bdcbf9161c0
SHA1

750054bc0818844b8307f5383ca7386f95eaf53c
SHA256

4dd343e7b1f4306c3cee31f5279ec2d9c26cc1fd4fed29e1223b69074ed04ae7
SHA512

1077ef1c2c8bba392179fb0da0a22c3393a90f1c345d33a0da6484ead623e0b82f46ccb634fd38446535e492cdbbe8816e2c383167219f5cb43d61a096e57434
SSDEEP

3072:ce2A0wxDqUpM5scww4chO+O1BmP5DG0sg3i4XZ9WvDZHwdRX/L+gP38XV:csxD5cwohO+O1sVG0/pZ6iPC8

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/1200-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1200-51-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1200-50-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1200-61-0x0000000000400000-0x0000000000414000-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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	4dd343e7b1f4306c3cee31f5279ec2d9c26cc1fd4fed29e1223b69074ed04ae7N.exe

Executes dropped EXE 3 IoCs

pid	Process
4796	csrsll.exe
4556	csrsll.exe
1200	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-1-5-21-2878641211-696417878-3864914810-1000\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 2748 set thread context of 5004	2748	4dd343e7b1f4306c3cee31f5279ec2d9c26cc1fd4fed29e1223b69074ed04ae7N.exe	83
PID 4796 set thread context of 4556	4796	csrsll.exe	95
PID 4796 set thread context of 1200	4796	csrsll.exe	96

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2748-0-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/2748-5-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/5004-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/5004-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/5004-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2748-13-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/files/0x000c000000023b60-28.dat	upx
behavioral2/memory/4796-35-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/5004-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4796-40-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/1200-44-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1200-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/5004-57-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4796-53-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/1200-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1200-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1200-49-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4796-41-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/4556-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1200-61-0x0000000000400000-0x0000000000414000-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	4dd343e7b1f4306c3cee31f5279ec2d9c26cc1fd4fed29e1223b69074ed04ae7N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4dd343e7b1f4306c3cee31f5279ec2d9c26cc1fd4fed29e1223b69074ed04ae7N.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	4556	csrsll.exe
Token: SeDebugPrivilege	4556	csrsll.exe
Token: SeDebugPrivilege	4556	csrsll.exe
Token: SeDebugPrivilege	4556	csrsll.exe
Token: SeDebugPrivilege	4556	csrsll.exe
Token: SeDebugPrivilege	4556	csrsll.exe
Token: SeDebugPrivilege	4556	csrsll.exe
Token: SeDebugPrivilege	4556	csrsll.exe
Token: SeDebugPrivilege	4556	csrsll.exe
Token: SeDebugPrivilege	4556	csrsll.exe
Token: SeDebugPrivilege	4556	csrsll.exe
Token: SeDebugPrivilege	4556	csrsll.exe
Token: SeDebugPrivilege	4556	csrsll.exe
Token: SeDebugPrivilege	4556	csrsll.exe
Token: SeDebugPrivilege	4556	csrsll.exe
Token: SeDebugPrivilege	4556	csrsll.exe
Token: SeDebugPrivilege	4556	csrsll.exe
Token: SeDebugPrivilege	4556	csrsll.exe
Token: SeDebugPrivilege	4556	csrsll.exe
Token: SeDebugPrivilege	4556	csrsll.exe
Token: SeDebugPrivilege	4556	csrsll.exe
Token: SeDebugPrivilege	4556	csrsll.exe
Token: SeDebugPrivilege	4556	csrsll.exe
Token: SeDebugPrivilege	4556	csrsll.exe
Token: SeDebugPrivilege	4556	csrsll.exe
Token: SeDebugPrivilege	4556	csrsll.exe
Token: SeDebugPrivilege	4556	csrsll.exe
Token: SeDebugPrivilege	4556	csrsll.exe
Token: SeDebugPrivilege	4556	csrsll.exe
Token: SeDebugPrivilege	4556	csrsll.exe
Token: SeDebugPrivilege	4556	csrsll.exe
Token: SeDebugPrivilege	4556	csrsll.exe
Token: SeDebugPrivilege	4556	csrsll.exe
Token: SeDebugPrivilege	4556	csrsll.exe
Token: SeDebugPrivilege	4556	csrsll.exe
Token: SeDebugPrivilege	4556	csrsll.exe
Token: SeDebugPrivilege	4556	csrsll.exe
Token: SeDebugPrivilege	4556	csrsll.exe
Token: SeDebugPrivilege	4556	csrsll.exe
Token: SeDebugPrivilege	4556	csrsll.exe
Token: SeDebugPrivilege	4556	csrsll.exe
Token: SeDebugPrivilege	4556	csrsll.exe
Token: SeDebugPrivilege	4556	csrsll.exe
Token: SeDebugPrivilege	4556	csrsll.exe
Token: SeDebugPrivilege	4556	csrsll.exe
Token: SeDebugPrivilege	4556	csrsll.exe
Token: SeDebugPrivilege	4556	csrsll.exe
Token: SeDebugPrivilege	4556	csrsll.exe
Token: SeDebugPrivilege	4556	csrsll.exe
Token: SeDebugPrivilege	4556	csrsll.exe
Token: SeDebugPrivilege	4556	csrsll.exe
Token: SeDebugPrivilege	4556	csrsll.exe
Token: SeDebugPrivilege	4556	csrsll.exe
Token: SeDebugPrivilege	4556	csrsll.exe
Token: SeDebugPrivilege	4556	csrsll.exe
Token: SeDebugPrivilege	4556	csrsll.exe
Token: SeDebugPrivilege	4556	csrsll.exe
Token: SeDebugPrivilege	4556	csrsll.exe
Token: SeDebugPrivilege	4556	csrsll.exe
Token: SeDebugPrivilege	4556	csrsll.exe
Token: SeDebugPrivilege	4556	csrsll.exe
Token: SeDebugPrivilege	4556	csrsll.exe
Token: SeDebugPrivilege	4556	csrsll.exe
Token: SeDebugPrivilege	4556	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2748	4dd343e7b1f4306c3cee31f5279ec2d9c26cc1fd4fed29e1223b69074ed04ae7N.exe
5004	4dd343e7b1f4306c3cee31f5279ec2d9c26cc1fd4fed29e1223b69074ed04ae7N.exe
4796	csrsll.exe
4556	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2748 wrote to memory of 5004	2748	4dd343e7b1f4306c3cee31f5279ec2d9c26cc1fd4fed29e1223b69074ed04ae7N.exe	83
PID 2748 wrote to memory of 5004	2748	4dd343e7b1f4306c3cee31f5279ec2d9c26cc1fd4fed29e1223b69074ed04ae7N.exe	83
PID 2748 wrote to memory of 5004	2748	4dd343e7b1f4306c3cee31f5279ec2d9c26cc1fd4fed29e1223b69074ed04ae7N.exe	83
PID 2748 wrote to memory of 5004	2748	4dd343e7b1f4306c3cee31f5279ec2d9c26cc1fd4fed29e1223b69074ed04ae7N.exe	83
PID 2748 wrote to memory of 5004	2748	4dd343e7b1f4306c3cee31f5279ec2d9c26cc1fd4fed29e1223b69074ed04ae7N.exe	83
PID 2748 wrote to memory of 5004	2748	4dd343e7b1f4306c3cee31f5279ec2d9c26cc1fd4fed29e1223b69074ed04ae7N.exe	83
PID 2748 wrote to memory of 5004	2748	4dd343e7b1f4306c3cee31f5279ec2d9c26cc1fd4fed29e1223b69074ed04ae7N.exe	83
PID 2748 wrote to memory of 5004	2748	4dd343e7b1f4306c3cee31f5279ec2d9c26cc1fd4fed29e1223b69074ed04ae7N.exe	83
PID 5004 wrote to memory of 2368	5004	4dd343e7b1f4306c3cee31f5279ec2d9c26cc1fd4fed29e1223b69074ed04ae7N.exe	84
PID 5004 wrote to memory of 2368	5004	4dd343e7b1f4306c3cee31f5279ec2d9c26cc1fd4fed29e1223b69074ed04ae7N.exe	84
PID 5004 wrote to memory of 2368	5004	4dd343e7b1f4306c3cee31f5279ec2d9c26cc1fd4fed29e1223b69074ed04ae7N.exe	84
PID 2368 wrote to memory of 3896	2368	cmd.exe	88
PID 2368 wrote to memory of 3896	2368	cmd.exe	88
PID 2368 wrote to memory of 3896	2368	cmd.exe	88
PID 5004 wrote to memory of 4796	5004	4dd343e7b1f4306c3cee31f5279ec2d9c26cc1fd4fed29e1223b69074ed04ae7N.exe	89
PID 5004 wrote to memory of 4796	5004	4dd343e7b1f4306c3cee31f5279ec2d9c26cc1fd4fed29e1223b69074ed04ae7N.exe	89
PID 5004 wrote to memory of 4796	5004	4dd343e7b1f4306c3cee31f5279ec2d9c26cc1fd4fed29e1223b69074ed04ae7N.exe	89
PID 4796 wrote to memory of 4556	4796	csrsll.exe	95
PID 4796 wrote to memory of 4556	4796	csrsll.exe	95
PID 4796 wrote to memory of 4556	4796	csrsll.exe	95
PID 4796 wrote to memory of 4556	4796	csrsll.exe	95
PID 4796 wrote to memory of 4556	4796	csrsll.exe	95
PID 4796 wrote to memory of 4556	4796	csrsll.exe	95
PID 4796 wrote to memory of 4556	4796	csrsll.exe	95
PID 4796 wrote to memory of 4556	4796	csrsll.exe	95
PID 4796 wrote to memory of 1200	4796	csrsll.exe	96
PID 4796 wrote to memory of 1200	4796	csrsll.exe	96
PID 4796 wrote to memory of 1200	4796	csrsll.exe	96
PID 4796 wrote to memory of 1200	4796	csrsll.exe	96
PID 4796 wrote to memory of 1200	4796	csrsll.exe	96
PID 4796 wrote to memory of 1200	4796	csrsll.exe	96
PID 4796 wrote to memory of 1200	4796	csrsll.exe	96
PID 4796 wrote to memory of 1200	4796	csrsll.exe	96

C:\Users\Admin\AppData\Local\Temp\4dd343e7b1f4306c3cee31f5279ec2d9c26cc1fd4fed29e1223b69074ed04ae7N.exe
"C:\Users\Admin\AppData\Local\Temp\4dd343e7b1f4306c3cee31f5279ec2d9c26cc1fd4fed29e1223b69074ed04ae7N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2748
- C:\Users\Admin\AppData\Local\Temp\4dd343e7b1f4306c3cee31f5279ec2d9c26cc1fd4fed29e1223b69074ed04ae7N.exe
  "C:\Users\Admin\AppData\Local\Temp\4dd343e7b1f4306c3cee31f5279ec2d9c26cc1fd4fed29e1223b69074ed04ae7N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:5004
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\VCCAI.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2368
  - - 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:3896
- - 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:4796
  - - 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:4556
  - - 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:1200

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\VCCAI.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
326KB

MD5
e1e5f2cd3150ac81e5587560ae80b8cf

SHA1
91328c66f26bdfeebe5ca674caefdfb107669114

SHA256
ee526236a093b7ba53933dbd9a7db27f9ecb1a42493d91bae6bc6a1db49e2e42

SHA512
6cbcc7b5330e39a04f1fb96f5c8ef609ab1f1dfb24c4df296640c9a4c235f356c0d6c7bf951821609c474378a1ed73cf42c3a2d2cc94b4cf0b681389b6951c65

Download Submit
memory/1200-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1200-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1200-49-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1200-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1200-44-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1200-61-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2748-13-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/2748-0-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/2748-6-0x0000000002320000-0x0000000002322000-memory.dmp

Filesize
8KB

Download
memory/2748-5-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/2748-4-0x0000000002300000-0x0000000002302000-memory.dmp

Filesize
8KB

Download
memory/2748-3-0x00000000022F0000-0x00000000022F2000-memory.dmp

Filesize
8KB

Download
memory/4556-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4796-35-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/4796-41-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/4796-40-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/4796-53-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/5004-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/5004-57-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/5004-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/5004-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/5004-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads