modiloader | 4cec6ccd78026ca67b629e18fcb54b15005432c626aaa961538879c4011eb858

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
20-12-2024 00:53

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General

Target

4cec6ccd78026ca67b629e18fcb54b15005432c626aaa961538879c4011eb858N.exe
Size

90KB
MD5

de3c8f8b2e6b84e4c58a4846cb1f46b0
SHA1

d7cf49f4c711f743189e27fce12150b46557dec5
SHA256

4cec6ccd78026ca67b629e18fcb54b15005432c626aaa961538879c4011eb858
SHA512

0e02b625f772d39ff35f5282f51590f6f848456bd10a204d70db910c027976fc4c0da59f488502177efebc703248d1941d587d4d0c26c6f7ac850ab9e8658ece
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDf:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3p

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/3288-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3288-57-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3288-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3288-64-0x0000000000400000-0x0000000000414000-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-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	4cec6ccd78026ca67b629e18fcb54b15005432c626aaa961538879c4011eb858N.exe

Executes dropped EXE 3 IoCs

pid	Process
1372	csrsll.exe
4764	csrsll.exe
3288	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-1-5-21-940901362-3608833189-1915618603-1000\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 2452 set thread context of 3672	2452	4cec6ccd78026ca67b629e18fcb54b15005432c626aaa961538879c4011eb858N.exe	84
PID 1372 set thread context of 4764	1372	csrsll.exe	98
PID 1372 set thread context of 3288	1372	csrsll.exe	99

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2452-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2452-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3672-10-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3672-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3672-12-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2452-15-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x0009000000023c87-30.dat	upx
behavioral2/memory/3672-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1372-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1372-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3288-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3288-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3288-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3288-57-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3288-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1372-59-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3672-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4764-63-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3288-64-0x0000000000400000-0x0000000000414000-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	4cec6ccd78026ca67b629e18fcb54b15005432c626aaa961538879c4011eb858N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4cec6ccd78026ca67b629e18fcb54b15005432c626aaa961538879c4011eb858N.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

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe
Token: SeDebugPrivilege	4764	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2452	4cec6ccd78026ca67b629e18fcb54b15005432c626aaa961538879c4011eb858N.exe
3672	4cec6ccd78026ca67b629e18fcb54b15005432c626aaa961538879c4011eb858N.exe
1372	csrsll.exe
4764	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2452 wrote to memory of 3672	2452	4cec6ccd78026ca67b629e18fcb54b15005432c626aaa961538879c4011eb858N.exe	84
PID 2452 wrote to memory of 3672	2452	4cec6ccd78026ca67b629e18fcb54b15005432c626aaa961538879c4011eb858N.exe	84
PID 2452 wrote to memory of 3672	2452	4cec6ccd78026ca67b629e18fcb54b15005432c626aaa961538879c4011eb858N.exe	84
PID 2452 wrote to memory of 3672	2452	4cec6ccd78026ca67b629e18fcb54b15005432c626aaa961538879c4011eb858N.exe	84
PID 2452 wrote to memory of 3672	2452	4cec6ccd78026ca67b629e18fcb54b15005432c626aaa961538879c4011eb858N.exe	84
PID 2452 wrote to memory of 3672	2452	4cec6ccd78026ca67b629e18fcb54b15005432c626aaa961538879c4011eb858N.exe	84
PID 2452 wrote to memory of 3672	2452	4cec6ccd78026ca67b629e18fcb54b15005432c626aaa961538879c4011eb858N.exe	84
PID 2452 wrote to memory of 3672	2452	4cec6ccd78026ca67b629e18fcb54b15005432c626aaa961538879c4011eb858N.exe	84
PID 3672 wrote to memory of 3940	3672	4cec6ccd78026ca67b629e18fcb54b15005432c626aaa961538879c4011eb858N.exe	85
PID 3672 wrote to memory of 3940	3672	4cec6ccd78026ca67b629e18fcb54b15005432c626aaa961538879c4011eb858N.exe	85
PID 3672 wrote to memory of 3940	3672	4cec6ccd78026ca67b629e18fcb54b15005432c626aaa961538879c4011eb858N.exe	85
PID 3940 wrote to memory of 212	3940	cmd.exe	89
PID 3940 wrote to memory of 212	3940	cmd.exe	89
PID 3940 wrote to memory of 212	3940	cmd.exe	89
PID 3672 wrote to memory of 1372	3672	4cec6ccd78026ca67b629e18fcb54b15005432c626aaa961538879c4011eb858N.exe	90
PID 3672 wrote to memory of 1372	3672	4cec6ccd78026ca67b629e18fcb54b15005432c626aaa961538879c4011eb858N.exe	90
PID 3672 wrote to memory of 1372	3672	4cec6ccd78026ca67b629e18fcb54b15005432c626aaa961538879c4011eb858N.exe	90
PID 1372 wrote to memory of 4764	1372	csrsll.exe	98
PID 1372 wrote to memory of 4764	1372	csrsll.exe	98
PID 1372 wrote to memory of 4764	1372	csrsll.exe	98
PID 1372 wrote to memory of 4764	1372	csrsll.exe	98
PID 1372 wrote to memory of 4764	1372	csrsll.exe	98
PID 1372 wrote to memory of 4764	1372	csrsll.exe	98
PID 1372 wrote to memory of 4764	1372	csrsll.exe	98
PID 1372 wrote to memory of 4764	1372	csrsll.exe	98
PID 1372 wrote to memory of 3288	1372	csrsll.exe	99
PID 1372 wrote to memory of 3288	1372	csrsll.exe	99
PID 1372 wrote to memory of 3288	1372	csrsll.exe	99
PID 1372 wrote to memory of 3288	1372	csrsll.exe	99
PID 1372 wrote to memory of 3288	1372	csrsll.exe	99
PID 1372 wrote to memory of 3288	1372	csrsll.exe	99
PID 1372 wrote to memory of 3288	1372	csrsll.exe	99
PID 1372 wrote to memory of 3288	1372	csrsll.exe	99

C:\Users\Admin\AppData\Local\Temp\4cec6ccd78026ca67b629e18fcb54b15005432c626aaa961538879c4011eb858N.exe
"C:\Users\Admin\AppData\Local\Temp\4cec6ccd78026ca67b629e18fcb54b15005432c626aaa961538879c4011eb858N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2452
- C:\Users\Admin\AppData\Local\Temp\4cec6ccd78026ca67b629e18fcb54b15005432c626aaa961538879c4011eb858N.exe
  "C:\Users\Admin\AppData\Local\Temp\4cec6ccd78026ca67b629e18fcb54b15005432c626aaa961538879c4011eb858N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3672
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\WXKPW.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3940
  - - 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:212
- - 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:1372
  - - 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:4764
  - - 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:3288

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\WXKPW.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
54671687f1e7f8cf86b901b44ca395e8

SHA1
bf346780136b1d40e29456d7de3bcb25c3c7503b

SHA256
7ec3c433f959ee1bf331b46c8ec6dd65e3957e4bc1f90fd4a2f88db97be4fcd5

SHA512
6db68bc09e28ffc004d24665dc478931d593f9376b5612bf2d013868e8d25d4f9d637be9407717cb6fe2d493cc54aa5d508b6a0ad250aff50cecaaa180dee787

Download Submit
memory/1372-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1372-59-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1372-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2452-3-0x0000000002A20000-0x0000000002A22000-memory.dmp

Filesize
8KB

Download
memory/2452-4-0x0000000002A30000-0x0000000002A32000-memory.dmp

Filesize
8KB

Download
memory/2452-6-0x0000000002A50000-0x0000000002A52000-memory.dmp

Filesize
8KB

Download
memory/2452-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2452-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2452-15-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3288-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3288-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3288-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3288-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3288-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3288-64-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3672-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3672-12-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3672-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3672-10-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3672-60-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/3672-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4764-63-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads