modiloader | 9077ab0eef22bcce3902ffec8b139d5024348dbf14699fa1bef0948ae75aa609

Analysis

max time kernel
119s
max time network
119s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
26-07-2024 01:26

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General

Target

49447847eb6bfa4587c3df0ee4c87020N.exe
Size

308KB
MD5

49447847eb6bfa4587c3df0ee4c87020
SHA1

cf65ef4b44b0016e493f9ff3bdbc8589b851a87d
SHA256

9077ab0eef22bcce3902ffec8b139d5024348dbf14699fa1bef0948ae75aa609
SHA512

85bc8a48f25f570fc9872d364c59f0bf2c4858d5b820497c76e5e001217b82fabfc50ac863f382563dfb7b578f4da66935bdd0558d91a1f09819d1429430fc6c
SSDEEP

3072:/c3sBG7mXh7m/zZM3jAbNOM6CNtDCZFLq:E3sBz0Z4Mj72F

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 Second Stage 4 IoCs

resource	yara_rule
behavioral2/memory/3652-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3652-50-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3652-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3652-58-0x0000000000400000-0x0000000000414000-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-1-5-21-1705699165-553239100-4129523827-1000\Control Panel\International\Geo\Nation	49447847eb6bfa4587c3df0ee4c87020N.exe

Executes dropped EXE 3 IoCs

pid	Process
3636	csrsll.exe
2556	csrsll.exe
3652	csrsll.exe

UPX packed file 13 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1512-4-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1512-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1512-8-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3456-7-0x0000000002A60000-0x0000000002A61000-memory.dmp	upx
behavioral2/memory/3652-44-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3652-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1512-55-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2556-51-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3652-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3652-47-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3652-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2556-57-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3652-58-0x0000000000400000-0x0000000000414000-memory.dmp	upx

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-1-5-21-1705699165-553239100-4129523827-1000\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 3456 set thread context of 1512	3456	49447847eb6bfa4587c3df0ee4c87020N.exe	86
PID 3636 set thread context of 2556	3636	csrsll.exe	98
PID 3636 set thread context of 3652	3636	csrsll.exe	99

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	49447847eb6bfa4587c3df0ee4c87020N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	49447847eb6bfa4587c3df0ee4c87020N.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	2556	csrsll.exe
Token: SeDebugPrivilege	2556	csrsll.exe
Token: SeDebugPrivilege	2556	csrsll.exe
Token: SeDebugPrivilege	2556	csrsll.exe
Token: SeDebugPrivilege	2556	csrsll.exe
Token: SeDebugPrivilege	2556	csrsll.exe
Token: SeDebugPrivilege	2556	csrsll.exe
Token: SeDebugPrivilege	2556	csrsll.exe
Token: SeDebugPrivilege	2556	csrsll.exe
Token: SeDebugPrivilege	2556	csrsll.exe
Token: SeDebugPrivilege	2556	csrsll.exe
Token: SeDebugPrivilege	2556	csrsll.exe
Token: SeDebugPrivilege	2556	csrsll.exe
Token: SeDebugPrivilege	2556	csrsll.exe
Token: SeDebugPrivilege	2556	csrsll.exe
Token: SeDebugPrivilege	2556	csrsll.exe
Token: SeDebugPrivilege	2556	csrsll.exe
Token: SeDebugPrivilege	2556	csrsll.exe
Token: SeDebugPrivilege	2556	csrsll.exe
Token: SeDebugPrivilege	2556	csrsll.exe
Token: SeDebugPrivilege	2556	csrsll.exe
Token: SeDebugPrivilege	2556	csrsll.exe
Token: SeDebugPrivilege	2556	csrsll.exe
Token: SeDebugPrivilege	2556	csrsll.exe
Token: SeDebugPrivilege	2556	csrsll.exe
Token: SeDebugPrivilege	2556	csrsll.exe
Token: SeDebugPrivilege	2556	csrsll.exe
Token: SeDebugPrivilege	2556	csrsll.exe
Token: SeDebugPrivilege	2556	csrsll.exe
Token: SeDebugPrivilege	2556	csrsll.exe
Token: SeDebugPrivilege	2556	csrsll.exe
Token: SeDebugPrivilege	2556	csrsll.exe
Token: SeDebugPrivilege	2556	csrsll.exe
Token: SeDebugPrivilege	2556	csrsll.exe
Token: SeDebugPrivilege	2556	csrsll.exe
Token: SeDebugPrivilege	2556	csrsll.exe
Token: SeDebugPrivilege	2556	csrsll.exe
Token: SeDebugPrivilege	2556	csrsll.exe
Token: SeDebugPrivilege	2556	csrsll.exe
Token: SeDebugPrivilege	2556	csrsll.exe
Token: SeDebugPrivilege	2556	csrsll.exe
Token: SeDebugPrivilege	2556	csrsll.exe
Token: SeDebugPrivilege	2556	csrsll.exe
Token: SeDebugPrivilege	2556	csrsll.exe
Token: SeDebugPrivilege	2556	csrsll.exe
Token: SeDebugPrivilege	2556	csrsll.exe
Token: SeDebugPrivilege	2556	csrsll.exe
Token: SeDebugPrivilege	2556	csrsll.exe
Token: SeDebugPrivilege	2556	csrsll.exe
Token: SeDebugPrivilege	2556	csrsll.exe
Token: SeDebugPrivilege	2556	csrsll.exe
Token: SeDebugPrivilege	2556	csrsll.exe
Token: SeDebugPrivilege	2556	csrsll.exe
Token: SeDebugPrivilege	2556	csrsll.exe
Token: SeDebugPrivilege	2556	csrsll.exe
Token: SeDebugPrivilege	2556	csrsll.exe
Token: SeDebugPrivilege	2556	csrsll.exe
Token: SeDebugPrivilege	2556	csrsll.exe
Token: SeDebugPrivilege	2556	csrsll.exe
Token: SeDebugPrivilege	2556	csrsll.exe
Token: SeDebugPrivilege	2556	csrsll.exe
Token: SeDebugPrivilege	2556	csrsll.exe
Token: SeDebugPrivilege	2556	csrsll.exe
Token: SeDebugPrivilege	2556	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
3456	49447847eb6bfa4587c3df0ee4c87020N.exe
1512	49447847eb6bfa4587c3df0ee4c87020N.exe
3636	csrsll.exe
2556	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 3456 wrote to memory of 1512	3456	49447847eb6bfa4587c3df0ee4c87020N.exe	86
PID 3456 wrote to memory of 1512	3456	49447847eb6bfa4587c3df0ee4c87020N.exe	86
PID 3456 wrote to memory of 1512	3456	49447847eb6bfa4587c3df0ee4c87020N.exe	86
PID 3456 wrote to memory of 1512	3456	49447847eb6bfa4587c3df0ee4c87020N.exe	86
PID 3456 wrote to memory of 1512	3456	49447847eb6bfa4587c3df0ee4c87020N.exe	86
PID 3456 wrote to memory of 1512	3456	49447847eb6bfa4587c3df0ee4c87020N.exe	86
PID 3456 wrote to memory of 1512	3456	49447847eb6bfa4587c3df0ee4c87020N.exe	86
PID 3456 wrote to memory of 1512	3456	49447847eb6bfa4587c3df0ee4c87020N.exe	86
PID 1512 wrote to memory of 1408	1512	49447847eb6bfa4587c3df0ee4c87020N.exe	91
PID 1512 wrote to memory of 1408	1512	49447847eb6bfa4587c3df0ee4c87020N.exe	91
PID 1512 wrote to memory of 1408	1512	49447847eb6bfa4587c3df0ee4c87020N.exe	91
PID 1408 wrote to memory of 4568	1408	cmd.exe	95
PID 1408 wrote to memory of 4568	1408	cmd.exe	95
PID 1408 wrote to memory of 4568	1408	cmd.exe	95
PID 1512 wrote to memory of 3636	1512	49447847eb6bfa4587c3df0ee4c87020N.exe	96
PID 1512 wrote to memory of 3636	1512	49447847eb6bfa4587c3df0ee4c87020N.exe	96
PID 1512 wrote to memory of 3636	1512	49447847eb6bfa4587c3df0ee4c87020N.exe	96
PID 3636 wrote to memory of 2556	3636	csrsll.exe	98
PID 3636 wrote to memory of 2556	3636	csrsll.exe	98
PID 3636 wrote to memory of 2556	3636	csrsll.exe	98
PID 3636 wrote to memory of 2556	3636	csrsll.exe	98
PID 3636 wrote to memory of 2556	3636	csrsll.exe	98
PID 3636 wrote to memory of 2556	3636	csrsll.exe	98
PID 3636 wrote to memory of 2556	3636	csrsll.exe	98
PID 3636 wrote to memory of 2556	3636	csrsll.exe	98
PID 3636 wrote to memory of 3652	3636	csrsll.exe	99
PID 3636 wrote to memory of 3652	3636	csrsll.exe	99
PID 3636 wrote to memory of 3652	3636	csrsll.exe	99
PID 3636 wrote to memory of 3652	3636	csrsll.exe	99
PID 3636 wrote to memory of 3652	3636	csrsll.exe	99
PID 3636 wrote to memory of 3652	3636	csrsll.exe	99
PID 3636 wrote to memory of 3652	3636	csrsll.exe	99
PID 3636 wrote to memory of 3652	3636	csrsll.exe	99

C:\Users\Admin\AppData\Local\Temp\49447847eb6bfa4587c3df0ee4c87020N.exe
"C:\Users\Admin\AppData\Local\Temp\49447847eb6bfa4587c3df0ee4c87020N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3456
- C:\Users\Admin\AppData\Local\Temp\49447847eb6bfa4587c3df0ee4c87020N.exe
  "C:\Users\Admin\AppData\Local\Temp\49447847eb6bfa4587c3df0ee4c87020N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1512
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\JWYAK.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1408
  - - 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:4568
- - 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:3636
  - - 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:2556
  - - 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:3652

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\JWYAK.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
308KB

MD5
2ffd80210a54359f8750bf761400951e

SHA1
31abdd787fd3b3d759d1ebff0bf2574a399f6321

SHA256
a69f368b73a0139fc116df4a5ac37e81966c3affc37278854acbd0382b7c78c0

SHA512
9a2424281360c45d9df18a92f3111a8ca5f3d421f357abcfe9cc0a831faf21fac6735060d0fe91c67590a97af432ddd69d3fddc6879209fa888980084e2e4695

Download Submit
memory/1512-4-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1512-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1512-8-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1512-55-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2556-57-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2556-51-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3456-7-0x0000000002A60000-0x0000000002A61000-memory.dmp

Filesize
4KB

Download
memory/3456-6-0x0000000002A50000-0x0000000002A51000-memory.dmp

Filesize
4KB

Download
memory/3456-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3456-3-0x0000000002A40000-0x0000000002A41000-memory.dmp

Filesize
4KB

Download
memory/3636-33-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3636-36-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3636-43-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3652-44-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3652-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3652-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3652-47-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3652-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3652-58-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads