modiloader | d5a3263dcb5caed8781d0ca355104773f03c37d8c95b9fb14fc8dfeee187b413

Analysis

max time kernel
120s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
02-12-2024 14:36

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General

Target

d5a3263dcb5caed8781d0ca355104773f03c37d8c95b9fb14fc8dfeee187b413N.exe
Size

90KB
MD5

07d66ca4f916bcd092f5502bae945cf0
SHA1

4682ac255e0e0378fdca01fbc35c4d4ef5c0e87a
SHA256

d5a3263dcb5caed8781d0ca355104773f03c37d8c95b9fb14fc8dfeee187b413
SHA512

634fa950cbbcbc7b69e4ef01ae0845ce48adcd9af0819b4318bd410c36b96a7a8d29f838ee9aa0a80c10e2e5a9b095578304d96b0cd77a8090e922ef11d98fe9
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDC:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3E

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 1 IoCs

resource	yara_rule
behavioral1/memory/2320-257-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
2812	csrsll.exe
3012	csrsll.exe
2320	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
2648	d5a3263dcb5caed8781d0ca355104773f03c37d8c95b9fb14fc8dfeee187b413N.exe
2648	d5a3263dcb5caed8781d0ca355104773f03c37d8c95b9fb14fc8dfeee187b413N.exe
2648	d5a3263dcb5caed8781d0ca355104773f03c37d8c95b9fb14fc8dfeee187b413N.exe
2648	d5a3263dcb5caed8781d0ca355104773f03c37d8c95b9fb14fc8dfeee187b413N.exe
2648	d5a3263dcb5caed8781d0ca355104773f03c37d8c95b9fb14fc8dfeee187b413N.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-1-5-21-3533259084-2542256011-65585152-1000\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 2136 set thread context of 2648	2136	d5a3263dcb5caed8781d0ca355104773f03c37d8c95b9fb14fc8dfeee187b413N.exe	30
PID 2812 set thread context of 3012	2812	csrsll.exe	35
PID 2812 set thread context of 2320	2812	csrsll.exe	36

UPX packed file 18 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2136-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2136-26-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2136-89-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2648-94-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2648-92-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2648-99-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2648-106-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2648-104-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2136-103-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2648-102-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/files/0x000c000000012259-147.dat	upx
behavioral1/memory/2648-150-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2812-215-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2320-243-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/2812-250-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2648-253-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/3012-254-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2320-257-0x0000000000400000-0x0000000000414000-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	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	d5a3263dcb5caed8781d0ca355104773f03c37d8c95b9fb14fc8dfeee187b413N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d5a3263dcb5caed8781d0ca355104773f03c37d8c95b9fb14fc8dfeee187b413N.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe
Token: SeDebugPrivilege	3012	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2136	d5a3263dcb5caed8781d0ca355104773f03c37d8c95b9fb14fc8dfeee187b413N.exe
2648	d5a3263dcb5caed8781d0ca355104773f03c37d8c95b9fb14fc8dfeee187b413N.exe
2812	csrsll.exe
3012	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2136 wrote to memory of 2648	2136	d5a3263dcb5caed8781d0ca355104773f03c37d8c95b9fb14fc8dfeee187b413N.exe	30
PID 2136 wrote to memory of 2648	2136	d5a3263dcb5caed8781d0ca355104773f03c37d8c95b9fb14fc8dfeee187b413N.exe	30
PID 2136 wrote to memory of 2648	2136	d5a3263dcb5caed8781d0ca355104773f03c37d8c95b9fb14fc8dfeee187b413N.exe	30
PID 2136 wrote to memory of 2648	2136	d5a3263dcb5caed8781d0ca355104773f03c37d8c95b9fb14fc8dfeee187b413N.exe	30
PID 2136 wrote to memory of 2648	2136	d5a3263dcb5caed8781d0ca355104773f03c37d8c95b9fb14fc8dfeee187b413N.exe	30
PID 2136 wrote to memory of 2648	2136	d5a3263dcb5caed8781d0ca355104773f03c37d8c95b9fb14fc8dfeee187b413N.exe	30
PID 2136 wrote to memory of 2648	2136	d5a3263dcb5caed8781d0ca355104773f03c37d8c95b9fb14fc8dfeee187b413N.exe	30
PID 2136 wrote to memory of 2648	2136	d5a3263dcb5caed8781d0ca355104773f03c37d8c95b9fb14fc8dfeee187b413N.exe	30
PID 2648 wrote to memory of 476	2648	d5a3263dcb5caed8781d0ca355104773f03c37d8c95b9fb14fc8dfeee187b413N.exe	31
PID 2648 wrote to memory of 476	2648	d5a3263dcb5caed8781d0ca355104773f03c37d8c95b9fb14fc8dfeee187b413N.exe	31
PID 2648 wrote to memory of 476	2648	d5a3263dcb5caed8781d0ca355104773f03c37d8c95b9fb14fc8dfeee187b413N.exe	31
PID 2648 wrote to memory of 476	2648	d5a3263dcb5caed8781d0ca355104773f03c37d8c95b9fb14fc8dfeee187b413N.exe	31
PID 476 wrote to memory of 2836	476	cmd.exe	33
PID 476 wrote to memory of 2836	476	cmd.exe	33
PID 476 wrote to memory of 2836	476	cmd.exe	33
PID 476 wrote to memory of 2836	476	cmd.exe	33
PID 2648 wrote to memory of 2812	2648	d5a3263dcb5caed8781d0ca355104773f03c37d8c95b9fb14fc8dfeee187b413N.exe	34
PID 2648 wrote to memory of 2812	2648	d5a3263dcb5caed8781d0ca355104773f03c37d8c95b9fb14fc8dfeee187b413N.exe	34
PID 2648 wrote to memory of 2812	2648	d5a3263dcb5caed8781d0ca355104773f03c37d8c95b9fb14fc8dfeee187b413N.exe	34
PID 2648 wrote to memory of 2812	2648	d5a3263dcb5caed8781d0ca355104773f03c37d8c95b9fb14fc8dfeee187b413N.exe	34
PID 2812 wrote to memory of 3012	2812	csrsll.exe	35
PID 2812 wrote to memory of 3012	2812	csrsll.exe	35
PID 2812 wrote to memory of 3012	2812	csrsll.exe	35
PID 2812 wrote to memory of 3012	2812	csrsll.exe	35
PID 2812 wrote to memory of 3012	2812	csrsll.exe	35
PID 2812 wrote to memory of 3012	2812	csrsll.exe	35
PID 2812 wrote to memory of 3012	2812	csrsll.exe	35
PID 2812 wrote to memory of 3012	2812	csrsll.exe	35
PID 2812 wrote to memory of 2320	2812	csrsll.exe	36
PID 2812 wrote to memory of 2320	2812	csrsll.exe	36
PID 2812 wrote to memory of 2320	2812	csrsll.exe	36
PID 2812 wrote to memory of 2320	2812	csrsll.exe	36
PID 2812 wrote to memory of 2320	2812	csrsll.exe	36
PID 2812 wrote to memory of 2320	2812	csrsll.exe	36
PID 2812 wrote to memory of 2320	2812	csrsll.exe	36
PID 2812 wrote to memory of 2320	2812	csrsll.exe	36

C:\Users\Admin\AppData\Local\Temp\d5a3263dcb5caed8781d0ca355104773f03c37d8c95b9fb14fc8dfeee187b413N.exe
"C:\Users\Admin\AppData\Local\Temp\d5a3263dcb5caed8781d0ca355104773f03c37d8c95b9fb14fc8dfeee187b413N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2136
- C:\Users\Admin\AppData\Local\Temp\d5a3263dcb5caed8781d0ca355104773f03c37d8c95b9fb14fc8dfeee187b413N.exe
  "C:\Users\Admin\AppData\Local\Temp\d5a3263dcb5caed8781d0ca355104773f03c37d8c95b9fb14fc8dfeee187b413N.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2648
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\IXWKL.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:476
  - - 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:2836
- - 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:2812
  - - 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:3012
  - - 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:2320

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

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\IXWKL.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
d978096afada16552f7e4533b7351e25

SHA1
794e47d70d4710e9897812fcadf86484cc8766e2

SHA256
0d3743fa084b813ad0a510847eb67c79f14b080a074f7ae53f5379a96d1c7876

SHA512
d99474b9e184f300f6fb8dedd4b9302af7b634e87e845c4eca5cdfa08beb123e794e5465b59ba0022ecd4deae84aed8daaf64f42f2b6c1d140374d03a2f9d908

Download Submit
memory/2136-89-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2136-79-0x0000000000530000-0x0000000000532000-memory.dmp

Filesize
8KB

Download
memory/2136-15-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

Download
memory/2136-26-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2136-41-0x0000000000470000-0x0000000000471000-memory.dmp

Filesize
4KB

Download
memory/2136-29-0x00000000003F0000-0x00000000003F1000-memory.dmp

Filesize
4KB

Download
memory/2136-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2136-17-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/2136-96-0x0000000001D10000-0x0000000001D63000-memory.dmp

Filesize
332KB

Download
memory/2136-103-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2136-3-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/2136-5-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/2136-71-0x00000000004D0000-0x00000000004D1000-memory.dmp

Filesize
4KB

Download
memory/2136-61-0x00000000004B0000-0x00000000004B1000-memory.dmp

Filesize
4KB

Download
memory/2320-243-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2320-257-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2648-106-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2648-92-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2648-99-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2648-102-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2648-97-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2648-90-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2648-146-0x0000000002770000-0x00000000027C3000-memory.dmp

Filesize
332KB

Download
memory/2648-145-0x0000000002760000-0x00000000027B3000-memory.dmp

Filesize
332KB

Download
memory/2648-150-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2648-104-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2648-94-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2648-210-0x0000000002760000-0x00000000027B3000-memory.dmp

Filesize
332KB

Download
memory/2648-253-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2812-153-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/2812-163-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

Download
memory/2812-250-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2812-174-0x0000000000280000-0x0000000000281000-memory.dmp

Filesize
4KB

Download
memory/2812-215-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3012-254-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads