modiloader | 4d8e8a869e5e2b4456696a12e0f8b0e7f6738dec57e0303a71dda53a931bd098

Analysis

max time kernel
149s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
03-01-2025 22:59

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General

Target

4d8e8a869e5e2b4456696a12e0f8b0e7f6738dec57e0303a71dda53a931bd098.exe
Size

90KB
MD5

17c0954a5aaed3c3fbcaa7c34ee14072
SHA1

6186dc09cf6a2582efa66f30b81e4ffb85850ca4
SHA256

4d8e8a869e5e2b4456696a12e0f8b0e7f6738dec57e0303a71dda53a931bd098
SHA512

e5510269b671def1a4670712e4334c9367151add198793951c26bcaaabb9f52d0b07a3b96acd35865ff684dcfc00ad4fbd7202eeb25348e34b156bbe79190ec4
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oD1:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3H

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/2000-262-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
1780	csrsll.exe
1860	csrsll.exe
2000	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
1636	4d8e8a869e5e2b4456696a12e0f8b0e7f6738dec57e0303a71dda53a931bd098.exe
1636	4d8e8a869e5e2b4456696a12e0f8b0e7f6738dec57e0303a71dda53a931bd098.exe
1636	4d8e8a869e5e2b4456696a12e0f8b0e7f6738dec57e0303a71dda53a931bd098.exe
1636	4d8e8a869e5e2b4456696a12e0f8b0e7f6738dec57e0303a71dda53a931bd098.exe
1636	4d8e8a869e5e2b4456696a12e0f8b0e7f6738dec57e0303a71dda53a931bd098.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-1-5-21-3063565911-2056067323-3330884624-1000\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 2072 set thread context of 1636	2072	4d8e8a869e5e2b4456696a12e0f8b0e7f6738dec57e0303a71dda53a931bd098.exe	31
PID 1780 set thread context of 1860	1780	csrsll.exe	36
PID 1780 set thread context of 2000	1780	csrsll.exe	37

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2072-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2072-26-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2072-89-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1636-102-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1636-103-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1636-105-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2072-108-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1636-98-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1636-94-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1636-92-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/files/0x0005000000004ed7-131.dat	upx
behavioral1/memory/1636-152-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1780-211-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1636-210-0x0000000003440000-0x0000000003493000-memory.dmp	upx
behavioral1/memory/2000-248-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/1780-250-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1636-258-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1860-259-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2000-262-0x0000000000400000-0x0000000000414000-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	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	4d8e8a869e5e2b4456696a12e0f8b0e7f6738dec57e0303a71dda53a931bd098.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4d8e8a869e5e2b4456696a12e0f8b0e7f6738dec57e0303a71dda53a931bd098.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1860	csrsll.exe
Token: SeDebugPrivilege	1860	csrsll.exe
Token: SeDebugPrivilege	1860	csrsll.exe
Token: SeDebugPrivilege	1860	csrsll.exe
Token: SeDebugPrivilege	1860	csrsll.exe
Token: SeDebugPrivilege	1860	csrsll.exe
Token: SeDebugPrivilege	1860	csrsll.exe
Token: SeDebugPrivilege	1860	csrsll.exe
Token: SeDebugPrivilege	1860	csrsll.exe
Token: SeDebugPrivilege	1860	csrsll.exe
Token: SeDebugPrivilege	1860	csrsll.exe
Token: SeDebugPrivilege	1860	csrsll.exe
Token: SeDebugPrivilege	1860	csrsll.exe
Token: SeDebugPrivilege	1860	csrsll.exe
Token: SeDebugPrivilege	1860	csrsll.exe
Token: SeDebugPrivilege	1860	csrsll.exe
Token: SeDebugPrivilege	1860	csrsll.exe
Token: SeDebugPrivilege	1860	csrsll.exe
Token: SeDebugPrivilege	1860	csrsll.exe
Token: SeDebugPrivilege	1860	csrsll.exe
Token: SeDebugPrivilege	1860	csrsll.exe
Token: SeDebugPrivilege	1860	csrsll.exe
Token: SeDebugPrivilege	1860	csrsll.exe
Token: SeDebugPrivilege	1860	csrsll.exe
Token: SeDebugPrivilege	1860	csrsll.exe
Token: SeDebugPrivilege	1860	csrsll.exe
Token: SeDebugPrivilege	1860	csrsll.exe
Token: SeDebugPrivilege	1860	csrsll.exe
Token: SeDebugPrivilege	1860	csrsll.exe
Token: SeDebugPrivilege	1860	csrsll.exe
Token: SeDebugPrivilege	1860	csrsll.exe
Token: SeDebugPrivilege	1860	csrsll.exe
Token: SeDebugPrivilege	1860	csrsll.exe
Token: SeDebugPrivilege	1860	csrsll.exe
Token: SeDebugPrivilege	1860	csrsll.exe
Token: SeDebugPrivilege	1860	csrsll.exe
Token: SeDebugPrivilege	1860	csrsll.exe
Token: SeDebugPrivilege	1860	csrsll.exe
Token: SeDebugPrivilege	1860	csrsll.exe
Token: SeDebugPrivilege	1860	csrsll.exe
Token: SeDebugPrivilege	1860	csrsll.exe
Token: SeDebugPrivilege	1860	csrsll.exe
Token: SeDebugPrivilege	1860	csrsll.exe
Token: SeDebugPrivilege	1860	csrsll.exe
Token: SeDebugPrivilege	1860	csrsll.exe
Token: SeDebugPrivilege	1860	csrsll.exe
Token: SeDebugPrivilege	1860	csrsll.exe
Token: SeDebugPrivilege	1860	csrsll.exe
Token: SeDebugPrivilege	1860	csrsll.exe
Token: SeDebugPrivilege	1860	csrsll.exe
Token: SeDebugPrivilege	1860	csrsll.exe
Token: SeDebugPrivilege	1860	csrsll.exe
Token: SeDebugPrivilege	1860	csrsll.exe
Token: SeDebugPrivilege	1860	csrsll.exe
Token: SeDebugPrivilege	1860	csrsll.exe
Token: SeDebugPrivilege	1860	csrsll.exe
Token: SeDebugPrivilege	1860	csrsll.exe
Token: SeDebugPrivilege	1860	csrsll.exe
Token: SeDebugPrivilege	1860	csrsll.exe
Token: SeDebugPrivilege	1860	csrsll.exe
Token: SeDebugPrivilege	1860	csrsll.exe
Token: SeDebugPrivilege	1860	csrsll.exe
Token: SeDebugPrivilege	1860	csrsll.exe
Token: SeDebugPrivilege	1860	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2072	4d8e8a869e5e2b4456696a12e0f8b0e7f6738dec57e0303a71dda53a931bd098.exe
1636	4d8e8a869e5e2b4456696a12e0f8b0e7f6738dec57e0303a71dda53a931bd098.exe
1780	csrsll.exe
1860	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2072 wrote to memory of 1636	2072	4d8e8a869e5e2b4456696a12e0f8b0e7f6738dec57e0303a71dda53a931bd098.exe	31
PID 2072 wrote to memory of 1636	2072	4d8e8a869e5e2b4456696a12e0f8b0e7f6738dec57e0303a71dda53a931bd098.exe	31
PID 2072 wrote to memory of 1636	2072	4d8e8a869e5e2b4456696a12e0f8b0e7f6738dec57e0303a71dda53a931bd098.exe	31
PID 2072 wrote to memory of 1636	2072	4d8e8a869e5e2b4456696a12e0f8b0e7f6738dec57e0303a71dda53a931bd098.exe	31
PID 2072 wrote to memory of 1636	2072	4d8e8a869e5e2b4456696a12e0f8b0e7f6738dec57e0303a71dda53a931bd098.exe	31
PID 2072 wrote to memory of 1636	2072	4d8e8a869e5e2b4456696a12e0f8b0e7f6738dec57e0303a71dda53a931bd098.exe	31
PID 2072 wrote to memory of 1636	2072	4d8e8a869e5e2b4456696a12e0f8b0e7f6738dec57e0303a71dda53a931bd098.exe	31
PID 2072 wrote to memory of 1636	2072	4d8e8a869e5e2b4456696a12e0f8b0e7f6738dec57e0303a71dda53a931bd098.exe	31
PID 1636 wrote to memory of 1684	1636	4d8e8a869e5e2b4456696a12e0f8b0e7f6738dec57e0303a71dda53a931bd098.exe	32
PID 1636 wrote to memory of 1684	1636	4d8e8a869e5e2b4456696a12e0f8b0e7f6738dec57e0303a71dda53a931bd098.exe	32
PID 1636 wrote to memory of 1684	1636	4d8e8a869e5e2b4456696a12e0f8b0e7f6738dec57e0303a71dda53a931bd098.exe	32
PID 1636 wrote to memory of 1684	1636	4d8e8a869e5e2b4456696a12e0f8b0e7f6738dec57e0303a71dda53a931bd098.exe	32
PID 1684 wrote to memory of 1688	1684	cmd.exe	34
PID 1684 wrote to memory of 1688	1684	cmd.exe	34
PID 1684 wrote to memory of 1688	1684	cmd.exe	34
PID 1684 wrote to memory of 1688	1684	cmd.exe	34
PID 1636 wrote to memory of 1780	1636	4d8e8a869e5e2b4456696a12e0f8b0e7f6738dec57e0303a71dda53a931bd098.exe	35
PID 1636 wrote to memory of 1780	1636	4d8e8a869e5e2b4456696a12e0f8b0e7f6738dec57e0303a71dda53a931bd098.exe	35
PID 1636 wrote to memory of 1780	1636	4d8e8a869e5e2b4456696a12e0f8b0e7f6738dec57e0303a71dda53a931bd098.exe	35
PID 1636 wrote to memory of 1780	1636	4d8e8a869e5e2b4456696a12e0f8b0e7f6738dec57e0303a71dda53a931bd098.exe	35
PID 1780 wrote to memory of 1860	1780	csrsll.exe	36
PID 1780 wrote to memory of 1860	1780	csrsll.exe	36
PID 1780 wrote to memory of 1860	1780	csrsll.exe	36
PID 1780 wrote to memory of 1860	1780	csrsll.exe	36
PID 1780 wrote to memory of 1860	1780	csrsll.exe	36
PID 1780 wrote to memory of 1860	1780	csrsll.exe	36
PID 1780 wrote to memory of 1860	1780	csrsll.exe	36
PID 1780 wrote to memory of 1860	1780	csrsll.exe	36
PID 1780 wrote to memory of 2000	1780	csrsll.exe	37
PID 1780 wrote to memory of 2000	1780	csrsll.exe	37
PID 1780 wrote to memory of 2000	1780	csrsll.exe	37
PID 1780 wrote to memory of 2000	1780	csrsll.exe	37
PID 1780 wrote to memory of 2000	1780	csrsll.exe	37
PID 1780 wrote to memory of 2000	1780	csrsll.exe	37
PID 1780 wrote to memory of 2000	1780	csrsll.exe	37
PID 1780 wrote to memory of 2000	1780	csrsll.exe	37

C:\Users\Admin\AppData\Local\Temp\4d8e8a869e5e2b4456696a12e0f8b0e7f6738dec57e0303a71dda53a931bd098.exe
"C:\Users\Admin\AppData\Local\Temp\4d8e8a869e5e2b4456696a12e0f8b0e7f6738dec57e0303a71dda53a931bd098.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2072
- C:\Users\Admin\AppData\Local\Temp\4d8e8a869e5e2b4456696a12e0f8b0e7f6738dec57e0303a71dda53a931bd098.exe
  "C:\Users\Admin\AppData\Local\Temp\4d8e8a869e5e2b4456696a12e0f8b0e7f6738dec57e0303a71dda53a931bd098.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1636
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\BWAXL.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1684
  - - 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:1688
- - 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:1780
  - - 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:1860
  - - 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:2000

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\BWAXL.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
1b1f396e93011d8dde880258de0b53ab

SHA1
e35493ccb634c76af764e30bb288fb662efd8ee6

SHA256
83ae66258f2279e38518a1241baafefb0f334a076db7e98b352a489dadc825ae

SHA512
5f6c4b5d14bea50cc6f8eae1f349f7d570e45911451a9dbaa2c216f9fc8fb1aaced4c0a48b042b09045dc1c0fca70759db8179c05ee5642b6f44eaa0db55a82d

Download Submit
memory/1636-210-0x0000000003440000-0x0000000003493000-memory.dmp

Filesize
332KB

Download
memory/1636-240-0x0000000003450000-0x00000000034A3000-memory.dmp

Filesize
332KB

Download
memory/1636-243-0x0000000003450000-0x00000000034A3000-memory.dmp

Filesize
332KB

Download
memory/1636-92-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1636-152-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1636-145-0x0000000003450000-0x00000000034A3000-memory.dmp

Filesize
332KB

Download
memory/1636-146-0x0000000003450000-0x00000000034A3000-memory.dmp

Filesize
332KB

Download
memory/1636-147-0x0000000003450000-0x00000000034A3000-memory.dmp

Filesize
332KB

Download
memory/1636-148-0x0000000003440000-0x0000000003493000-memory.dmp

Filesize
332KB

Download
memory/1636-241-0x0000000003450000-0x00000000034A3000-memory.dmp

Filesize
332KB

Download
memory/1636-102-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1636-103-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1636-105-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1636-258-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1636-90-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1636-98-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1636-96-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1636-94-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1780-211-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1780-155-0x00000000001D0000-0x00000000001D1000-memory.dmp

Filesize
4KB

Download
memory/1780-250-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1780-165-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/1780-176-0x0000000000290000-0x0000000000291000-memory.dmp

Filesize
4KB

Download
memory/1860-259-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2000-262-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2000-248-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2072-61-0x00000000003E0000-0x00000000003E1000-memory.dmp

Filesize
4KB

Download
memory/2072-89-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2072-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2072-101-0x0000000002530000-0x0000000002583000-memory.dmp

Filesize
332KB

Download
memory/2072-29-0x0000000000280000-0x0000000000281000-memory.dmp

Filesize
4KB

Download
memory/2072-26-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2072-79-0x0000000000530000-0x0000000000532000-memory.dmp

Filesize
8KB

Download
memory/2072-41-0x00000000002A0000-0x00000000002A1000-memory.dmp

Filesize
4KB

Download
memory/2072-15-0x00000000001E0000-0x00000000001E1000-memory.dmp

Filesize
4KB

Download
memory/2072-16-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/2072-5-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/2072-3-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/2072-71-0x00000000004D0000-0x00000000004D1000-memory.dmp

Filesize
4KB

Download
memory/2072-108-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads